Răspuns:
100%
Explicație pas cu pas:
Permiteți numărul inițial de fotografii = x
x - 50% din x = x - 0,5x = 0,5x
0,5x + câte% din 0,5x = x
x - 0,5x = y% de 0,5x
0,5x / 0,5x = 1
Prin urmare,
100% = 1
Prin urmare, x trebuie mărit cu 100% pentru a reveni la numărul original.
What is the result when -7/8 is multiplied by -3.5
Answer: 49/ 16
Step-by-step explanation:
-3.5 or -35/ 10 = - 7/2
-7/8 times -7/2 = 49/ 16
Negative time negative will be positive!
How do you find the horizontal and vertical?
To find horizontal line,its equation is y=b where b is constant.Horizontal line is parallel to x-axis of the coordinate plane.To find vertical ,its equation is x=b where b is constant.Vertical line is parallel to y-axis.
How do we find horizontal line?A horizontal line is a line extending from left to right and right to left.The slope of horizontal line is always zero.Horizontal lines are always parallel to x-axis.The y-intercepts of a horizontal line y=b is the point (0,b).
How do we find vertical lines?A vertical line is a line extending from up to down and downward to upward.Its never moves left to right.Vertical lines are always parallel to y-axis.The equation of a vertical line is x=a and x=-a where x is the x-coordinate of ant point on the line and a is the point where he line crosses the x-intercepts.
Hence we can find horizontal and vertical lines on the graph or paper easily.
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What are three ways you can determine if two triangles are similar explain one of the methods in detail?
You may use three triangle-specific theorems to quickly distinguish similar triangles.
There are three theorems that may be used to determine whether two triangles are similar: Angle - Angle (AA), Side - Angle - Side (SAS), and Side - Side - Side (SSS).
SSS, which stands for "side, side, side," denotes that there are two triangles with identical angles on all three sides. The triangles are congruent if their third sides are the same as those of another triangle.
That is what the SAS regulation says. The triangles are congruent if the two sides and included angle of one triangle are the same as the two sides and included angle of another triangle. Any angle that is created by two specified sides is an included angle.
According to the AA postulate of Euclidean geometry, two triangles are similar if their two corresponding angles are congruent. The fact that the sum of a triangle's internal angles is always equal to 180° leads to the AA postulate.
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How do you tell if a slope intercept form is parallel or perpendicular?
Lines that have the same slope are said to be parallel, and if the slope of one line is equal to the negative reciprocal of the slope of the other, the two lines are said to be perpendicular; otherwise, they are merely intersecting lines.
A line's slope is defined as the ratio of the change in the y coordinate to the change in the x coordinate.
Both the net change in the y-coordinate and the net change in the x-coordinate are denoted by Δy and Δx, respectively. and
m = Δy/Δx = dy/dx = change in y/change in x
where "m" represents a line's slope.
Additionally, the slope of the line may be shown as
tan θ = Δy/Δx
A line's slope often indicates the steepness and direction of the line.
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Both the net change in the y-coordinate and the net change in the x-coordinate are denoted by Δy and Δx, respectively. and
m = Δy/Δx = dy/dx = change in y/change in x
where "m" represents a line's slope.
Additionally, the slope of the line may be shown as
tan θ = Δy/Δx
Which congruence theorem can be used to prove WXS = YZS?
O SSS
O ASA
O SAS
OHL
Congruence theorem can be used to prove WXS = YZS is ASA.
What is Congruence theorem ?
If two triangles are identical in size and shape, they are said to be congruent. Corresponding sides (sides in the same location) and corresponding angles (angles in the same position) are congruent when triangles are congruent (equal).
Point S makes the two connected angles the same. They both have right angles.
And one side of each is congruent.
This means you know 2 angles are the same and one side is the same.
You would use ASA (Angle, Side, Angle).
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If the interior angle of triangle are 3x,4x,and5x find the ize of angle of the traingle. Alo fing the difference between larget and malleat angle
Answer:
45, 60, 75
Difference between the largest and smallest angles
75 - 40 = 35
Step-by-step explanation:
First solve for x. The sum of the interior angles of a triangle is 180
3x + 4x + 5x =180 Combine like terms
12x + 180 Divide both sides by 12
[tex]\frac{12x}{12}[/tex] = [tex]\frac{180}{12}[/tex]
x = 15
3x = 3(15) = 45
4x = 4(14) = 60
5x = 5(15) = 75
Step-by-step explanation:
please, burn this into your brain for life :
the sum of all angles in a triangle is always (yes, no exceptions) 180°.
so,
3x + 4x + 5x = 180
12x = 180
x = 180/12 = 15
3x = 3×15 = 45°
4x = 4×15 = 60°
5x = 5×15 = 75°
the difference between largest and smallest angle is therefore
75 - 45 = 30°
pls help due asap!!!!!!!!!!!!!!!!
What is the sum of the geometric sequence 1, 3, 9, ... if there are 10 terms? (1 point)
a. 29,524
b. 55,987
c. 87,381
d. 88,573
The sum of the geometric sequence is 88,573.
The formula for the sum of a geometric sequence is
S = a₁(1 - rⁿ)/(1-r),
where a₁ is the first term of the sequence, r is the common ratio between terms, and n is the number of terms in the sequence. In this case, the first term is a₁ = 1, the common ratio between terms is r = 3, and the number of terms is n = 10. Inserting these values into the formula,
we get S = 1(1 - 3⁹)/(1-3) = 1(1 - 19,683)/(-2) = -9,841.5.
Therefore, the sum of the geometric sequence is 88,573.
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How do you write more than a number?
“5 more than a number” written as an algebraic expression is “x+5”.
In a formula or equation involving mathematical operations, the representation of numbers by alphabet is referred to as algebra. Similar to how a statement explains the link between certain words, algebraic equations describe the connection between unknown variables.
We are given a mathematical statement and have to convert it into an algebraic expression using the information above.
Let there be a number “x”.
A number 5 more than this number is obtained after adding 5 to the given number.
So a number 5 more than x is equal to x+5.
Hence “5 more than a number” written as an algebraic expression is “x+5”.
Complete question: How do you write 5 more than a number?
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Multiple choice math. Please make sure you are correct. What symmetry does the graph show?
Answer:
D. Line symmetry
Step-by-step explanation:
I am pretty sure it is Line symmetry because it has a line pass through the vertex and divides the graph into two equal halves. If I am wrong, I am sorry!
What is the slope to a line perpendicular to 3x y 1?
The slope to a line perpendicular to y = 3x + 1 is -1/3.
Define slope.The ratio of how much y grows as x grows by a certain amount is called the slope of a line. A line's slope, or the amount by which y rises as x rises, indicates how steep a line is. Nowhere on the line has a different slope; it is constant. We frequently seek to quantify the steepness in mathematics. The difference between slope A and slopes B and C is obvious. While slope A is just four units high, they both stand at seven. It would therefore seem that steepness and height are related.
Given
Equation
y = 3x + 1
Using slope intercept from,
y = mx + b
m = slope
m = 3
Slope which is perpendicular
= -1/m
= -1/3
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How do you solve an inequality and graph it on a number line?
Solving and graphing of inequality can be done by following rules of simplification and graphing accordingly.
What is number line?The horizontal straight lines in mathematics known as number lines are where integers are arranged in equal intervals. A number line can be used to represent every number in a sequence. The endpoints of this line go on forever. Integers are arranged on a number line in the image above.
How do you solve the number line?On the number line, find the first number. To add, take as many steps to the right as the second number. Move as far to the right as the second number in order to subtract. The solution is the number you finally select.
When resolving an inequality, you can do one of the following: • Add the same amount to each side; • Subtract the same amount from each side; • Multiply or divide each side by the same positive amount. You must flip the inequality sign if you multiply or divide each side by a negative number.
To represent an inequality on a number line, such as x>3, first draw a circle around the number (e.g., 3). Fill in the circle if the sign also says equal to (). Leave the circle blank if the sign doesn't include equal to (> or <).
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What is the relationship between base height and area?
Area in term of height- This method works well with right-angled triangles or in situations where the base as well as height are known:
Area = 1/2 x base x height
Describe the relationship between base height and area?TRIANGLE REGION: Triangles' areas can be determined in three simple ways. Each method works best with a specific kind of triangle.
These techniques:
A triangle's area in terms of its base and heightHeron-populated areaEquilateral triangle's surface areaArea calculated by trigonometry.Lets assume a triangle.
The base of this triangle is assumed to be c.The height that corresponds to the base is perpendicular to the base and touches the triangle's apex. We have a straightforward formula to calculate the triangle's area:Area is equal to half of a base times a height.
Area = 1/2 x base x height.
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PLLLLZZZZ HELP MEH Anne is putting 315 pictures into scrapbooks. She puts 6 pictures on each page. If Anne fills as many pages as she can, how many pictures will she have left over?
Answer:
3
Step-by-step explanation:
She's got 315 total pictures. if she uses one page for 6 pictures then she will fix 52 and a half pages. if only half the page is filled you have 3 photos left
The number of pictures leftover in the scrapbooks is A = 3
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
The total number of pictures = 315
The number of pictures in each page = 6
Since Anne can only fill complete pages, she will use 52 pages. The remaining pictures will be:
The remaining pictures = total pictures - (pictures per page x pages used)
On simplifying the equation , we get
The remaining pictures A = 315 - (6 * 52)
The remaining pictures A = 315 - 312
The remaining pictures A = 3
Hence , Anne will have 3 pictures left over.
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0.25 of what number
is 40?
Answer: 10
Step-by-step explanation:
Because 0.25 or 25%
We take 40 times 0.25 = 10
What is the value of x 12 15 20 or 24?
The value of x is 20 units.
The correct answer is 20 units .
According to the triangle,
ST = 9, TQ = 16 and RQ = x
From similar triangles,
Δ SRQ ⩭ Δ STR ------(1)
{∵ RT 丄 Hypotenuse SQ}
Δ SRQ ⩭ Δ RTQ ------(2)
{∵ Δ SRQ, Δ STR and Δ RTQ are similar triangles}
⇒ SR/ST = SQ/SR = RQ/TR
⇒ SR/9 = 25/SR = x/TR
⇒ SR2 = 25 × 9
⇒ SR = 5 × 3 = 15
[tex]SR^2[/tex] + [tex]RQ^2[/tex] = [tex]SQ^2[/tex]
[tex]RQ^2 = SQ^2 - SR^2[/tex]
[tex]RQ^2 = 25^2 - 15^2[/tex]
RQ = x = √(625 - 225) = √400
x = 20 units.
Hence, The value of x is 20 units.
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The complete question is this:
What is the value of x?
12 units, 15 units, 20 units, 24 units
Marques is deciding between two parking garages. Garage A charges an initial fee of $5 to park plus $3 per hour. Garage B charges an initial fee of $7 to park plus $2 per hour. Let AA represent the amount Garage A would charge if Marques parks for tt hours, and let BB represent the amount Garage B would charge if Marques parks for tt hours. Write an equation for each situation, in terms of t,t, and determine the interval of hours parked, t,t, for which Garage A is cheaper than Garage B.
Answer:
A = 5 + 3t
B = 7 + 2t
2 hours
Step-by-step explanation:
7 + 2t > 5 +3t
(subtract 2t from both sides)
7 > 5 + t
(subtract 5 from both sides)
2 > t
therefore in 2 hours, the parking would be cheaper in Garage A than B
Which equation can be simplified to find the inverse of y 2x 2?
The simplified equation for finding the inverse of y = 2x² is x = 2y².
What is the equation?A function that "undoes" another function is known as an inverse function. That is, if f(x) yields y, then y multiplied by the inverse of f yields x. Invertible functions have an inverse, which is denoted by the symbol f1.It is worth noting that the inverse of y = 2x² is √x/2 = y.
x = 2y²
Make the subject of the formula 'y²'.
x/2 = y²
Make 'y' the subject of the equation by taking the square root of both sides.
√x/2 = √y²
The square root cancels out the square.
√x/2 = y
Thus, the simplified equation for finding the inverse of y = 2x² is,
x = 2y².
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If a polygon has four right angles, then it is either a square or a rectangle. Which is a counterexample for the conditional?.
If the polygon has four right angles , then it is a square when all four sides are equal and a rectangle when the opposite sides are equal .
The Polygon is defined as closed object that is made of line segments rather than curves on a 2 - D plane .
A square is defined as a polygon in which all the angles are right angles and pair of opposite sides are equal .
A rectangle is defined as polygon that have all the angles as right angles and all four sides are equal .
From above definitions , we can say that ,
A polygon that has four right angles , is a square when all four sides are equal and it is a rectangle when pair of opposite sides are equal .
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What is a 1 dimension array?
A one-dimensional array is the simplest type of array in which the elements are stored linearly and can be accessed individually by determining the index value of each element stored in the array.
What is a 1 dimension array?A one-dimensional array is the simplest type of array in which the elements are stored linearly and can be accessed individually by determining the index value of each element stored in the array.
One Dimensional Arrays are used to implement other data structures such as stacks, queues, heaps, graphs.
A typical advantage of one Dimensional Arrays is that they help in accessing elements easily using the index number.
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What is the mean deviation of the data 8 9 12 15 16 20 24 30 32 34?
The mean deviation of the data 8,9,12,15,16,20,24,30,32,34 is 8
Given data: 8,9,12,15,16,20,24,30,32,34
The formula for the mean (x bar) = sum of observations /no. of observations
Mean (x bar) = 8+9+12+15+16+20+24+30+32+34/ 10
Mean = 200/10
∴ Mean = 20
Now, we find the mean deviation using mean
Mean deviation using mean = 1/n Σ|x- x bar|
where n= number of observations = 10
x= each observation in the data
x bar= mean of the data= 20
Mean deviation using mean
= 1/10 x [(20-8)+(20-9)+(20-12)+(20-15)+(20-16)+(20-20)+(24-20)+(30-20)+ (32-20)+(34-20)]
= 1/10 x [12+11+8+5+4+0+4+10+12+14]
= 1/10 x (80)
= 80/10
Mean deviation = 8
Thus the mean deviation is 8.
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Which equation describes a line that contains the point (4, -3) and is perpendicular to the line represented by the equation y=25x+3 ?.
The equation describes a line that contains the point (4, -3) is y = ( -1/25 )x - 71/25 .
Given :
The point (4, -3) and is perpendicular to the line represented by the equation y = 25x +3 .
Here slope m = 25
Perpendicular slope = -1 / m
= -1 / 25
The line equation is y = mx + c
Substitute m and ( 4 , -3 ) we get
-3 = -1/25 * 4 + c
-75 = -4 + 25c
-71 = 25c
c = -71/25
y = mx + c
y = ( -1/25 )x - 71/25
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Graphing root functions
Really need help with the 4 questions
Willka can cover 13. 5\,\text{m}^213. 5m 2 13, point, 5, start text, m, end text, squared with 3\,\text{l}3l3, start text, l, end text of paint. Complete the table using equivalent ratios.
Completing the table using equivalent ratios Willka can cover 4.5 m² of the area with 1 - liter paint.
Given :
What are equivalent ratios?
Equivalent ratios are the ratios that express same relation or numbers that are equivalent.
so area covered for 1 paint
13.5 / 3 = 4.5
4.5 for 1 paint
for 10 paint :
Area covered = 4.5 * 10
= 45
Table :
Area covered ( m^2 ) paint ( L )
13.5 3
4.5 1
45 10
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Calculate the approximate degree measure of the angle, given the following expression: tan(y°) = 4.12 Round your answer to the nearest tenth.
Answer:
y ≈ 76.4°
Step-by-step explanation:
To solve for the angle a trigonometric function is being used on, we have to use the inverse of the trigonometric function.
Inverse of tan(y°) = 4.12:
[tex]tan^-1(4.12) = y[/tex]
Next, I used a scientific calculator to find the angle measure of y.
[tex]76.4 = y[/tex]
if vertical angles are congruent, then two lines cut by a transversal are parallel. t or f
Answer:
False
Step-by-step explanation:
Vertical angles are always congruent regardless of if the lines are parallel.
Select TWO expressions equal to the area of this figure in square centimeters
The two expressions equal to the area of the figure are (6×10) + (6×6) + (6×10) square centimeters and (6×4) + (18×6) + (6×4) square centimeters. Select these options
How to determine two expressions equal to the area of the figure in square centimeters?Consider the images I attached:
First image:
The area of the figure = area of rectangle A + area of rectangle B + area of rectangle C
The area of the figure = (6×10) + (6×6) + (6×10)
Second image:
The area of the figure = area of rectangle D + area of rectangle E + area of rectangle F
The area of the figure = (6×4) + (18×6) + (6×4)
Thus, (6×10) + (6×6) + (6×10) square centimeters and (6×4) + (18×6) + (6×4) square centimeters are the two expressions equal to the area of this figure
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What is the difference between transform and reform?
Students are pushed by reform mathematics curricula to make sense of novel mathematical concepts through investigations and projects, frequently in practical settings.
What is a transform in math?A point, line, or geometric object can be changed in four different ways that are all collectively referred to as transformations. The pre-image is the shape of the object as it was originally, and the transformed shape of the object is termed the image.
Students are pushed by reform mathematics curricula to make sense of novel mathematical concepts through investigations and projects, frequently in practical settings. Writing and speaking clearly, cooperating in groups, and drawing connections between ideas and representations are all stressed in reform textbooks.
Translation, rotation, reflection, and expansion are the four different types of transformation. Each change must be carried out, and you must be able to tell which transformations have been carried out.
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100 POINTS HELP PLEASE WILL GIVE BRAINLIEST PLEASEEEEEEE
Answer:
A. It is an increase in assets.
Step-by-step explanation:
The Debit section shows what the business purchased which is $12,000 worth of equipment. Hence, the business gained equipment worth $12,000 which is an increase in assets.
Answer:
A. It is an increase in assets.
Step-by-step explanation:
The entry "Equipment 12,000" is listed as a debit in the T-account because it is an increase in assets.
A T-account is a visual representation used in accounting to track and display the balances of a specific account, with the "debit" side showing increases and the "credit" side showing decreases.
When office equipment is purchased, it represents an increase in the company's assets. An increase in assets (or a decrease in liabilities) is recorded as a debit on a company's balance sheet.
In this case, the business is acquiring equipment, which is considered an asset, and therefore, it is debited to reflect the increase in the asset account.
Does square root Mean 1 2?
The square root of some number 'X' is a number which, when you multiply it by itself, the answer is 'X'.
What is Square root ?The square root of a number is the factor that we can multiply by itself to get that number. The symbol for square root is [tex]\sqrt{x}[/tex] . Finding the square root of a number is the opposite of squaring a number.
In mathematics, a square root of a number x is a number y such that y² = x; in other words, a number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x.[1] For example, 4 and −4 are square roots of 16, because 4² = (−4)² = 16.
Thus , the square root of some number 'X' is a number which, when you multiply it by itself, the answer is 'X'.
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