Answer:
She would receive $10.05 cents back
Step-by-step explanation:
Add 6.75, 1.45, and 1.75. You would get 9.95. Then, you would subtract $20.00 by $9.95, getting 10.05 as change.
Hope this helps!
Use the law of conservation of momentum to determine the answer to the
flowing question: In this group, there are two hockey pucks, both with a mass of
0.25 kg. One is traveling at 2 m/s. The other is at rest. What is the momentum of
this group of objects?
Given :
Two hockey of same mass.
One is travelling at a speed of 2 m/s.
Other is in rest or 0 m/s.
To Find :
The momentum of this group of objects.
Solution :
Since , no external force is applied , so momentum will remains same :
Momentum of group of objects ,
[tex]M = mv_1^2+mv_2^2\\\\M = 0.25\times 2^2+0.25\times 0\\\\M=1 \ kg \ m/s[/tex]
Therefore , momentum of the system is 1 kg m/s.
Hence , this is the required solution.
Jerry bought a coat on sale for 30% off. The sale price for the coat was $63, what is the regular price for the coat?
Answer:
The original regular price for the coat is $90
Step-by-step explanation:
The given information in the question are;
The percentage that was off (removed) from the sale price = 30%
The sale price at which Jerry bought the coat = $63
Whereby the regular price = P, we have;
P - 30% of P = $63
P - 0.3×P = $63
P×(1 - 0.3) = $63
0.7·P = $63
P = $63/0.7 = $90
Therefore, the regular (original) price for the coat = $90
The coat regular price at which the coat is displayed is at $90.
Isabel wrote 10 letters to friends each month for x months in a row. Write an expression to show how many total
letters Isabel wrote.
Answer:
10x
X = Months
10 = letters each month
Valentino wants to estimate the product (5.2)(9.9). Which expression shows each factor rounded to the nearest whole
number?
(5)(9)
(6)(10)
(6)(9)
(5)(10)
Answer:(5)(10)
Step-by-step explanation:
Answer:
(5)(10)
Step-by-step explanation:
Which of the following are equivalent to y’z-4?
Notebo...
Select all that apply.
ay?
2
4
Quarter
Quarter
b. y? (-24)
C.
2
y
d
yy
CE
Answer:
a is the answer because when x⁴ will go up it will be x-4
What is the sign of 39 11/13 + (-41 1/13) ?
Answer:
negative
best of luck!
The sign of the expression is Negative, the correct option is B.
What is an Expression?An expression is a mathematical statement which consists of variables, constants and mathematical operators.
The expression is
39 11/13 + (-41 1/13)
[tex]=\rm 39\dfrac{11}{13} -41\dfrac{1}{13}\\\\=\dfrac{518}{13} - \dfrac{534}{13}\\\\=\dfrac{ 518 - 534} {13}\\\\=\dfrac{ -16}{13}\\\\=- 1 \dfrac{3}{13}[/tex]
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What is the equation for the kind of reflection?
Answer:
A vertical reflection is given by the equation y=−f(x) y = − f ( x ) and results in the curve being “reflected” across the x-axis. A horizontal reflection is given by the equation y=f(−x) y = f ( − x ) and results in the curve being “reflected” across the y-axis.
73% of what is 7.1?
a. 5.2
b. 518.3
C. 9.7
d. 38

Answer:
Answer is 9.7
I used calculator
Evaluate the function f(x)=3x+12 with x+6.
f(x+6) = 6x + 60
f(x+6) = 2x - 30
f(x+6) = 3x + 30
f(x+6) = 30
Answer:
f(x+6)= 3x + 30
Step-by-step explanation:
Whenever you have to evaluate a function with a certain value, replace the variable x with a certain value. In this case, substitute x with the value of (x+6). You get the equation f(x+6)= 3(x+6) + 12, which simplifies into f(x+6)= 3x + 18 +12, which further simplifies into f(x+6)= 3x + 30.
what steps do i take to solve this?
Answer:
B; The second answer
Step-by-step explanation:
The question is asking about the associative property of addition. This involves the rearranging of the parenthesis. If you were to solve the given equation, and solve the the answer, then you will get the same answer. In this property, it says that you will get the same result if you were to move/switch the parenthesis from the values; This means that order doesn't matter.
A store sells the basic model of a phone for $60 and the upgraded model for $200. It costs the store $10 to buy each
basic model and $50 to buy each upgraded model from the phone company, On Tuesday, the store has $1,800 in
sales for these two models, and it paid the phone company $400 to buy these phones. How many upgraded models
did the store sell on Tuesday?
O 6 upgraded phones
10 upgraded phones
15 upgraded phones
42 upgraded phones
Answer: A, 6
Step-by-step explanation:
Edg
What is the value of 4s2+10 if s=9?
Answer:
82
Step-by-step explanation:
4x9=36x2=72+10=82
Answer:
82
Step-by-step explanation:
Plug in the 9 for s
4(9)2+10
Remember PEMDAS
Parentheses first, then multiply the 2
72+10=82
Given a circle with endpoints of a diameter at –10 – 1i and 6 + 11i, answer the questions below. 1. The center of the circle is at ---+ --- i.
The center of the circle is at -2 + 5i.
What are Complex Number?Complex Numbers. Complex numbers are those that are expressed as a+ib, where a and b are actual numbers and I is a fictitious number called a "iota."
Complex numbers are numbers that consist of two parts — a real number and an imaginary number.
Given:
Diameter = –10 – 1 i = (- 10, - 1)
6 + 11 i = (6, 11)
Given that we are aware that these are the diameter's endpoints, it follows that the circle's center is the place that lies midway between the endpoints.
Then,
x = (-10 + 6) / 2
= - 4 / 2
= -2
y = (- 1 + 11) / 2
= 10 / 2
= 5
Hence, the center is located at (- 2, 5).
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is f(x)=c Surjective, Injective or Bijective ?
Answer:
idk p:
Step-by-step explanation:
oof 9:::::::::::::::::::::::::
Answer:
Bijective (I believe)
Step-by-step explanation:
A bijective function, f: X → Y, where set X is {1, 2, 3, 4} and set Y is {A, B, C, D}. For example, f(1) = D.
WHAT IS 10/10 AND 20/20 I NEED HELP ON THIS MULTICATION
Answer:
a whole?????
Step-by-step explanation:
What value(s) of x will make x2 = 25 true?
Steps to solve:
x² = 25
~Take the square root of both sides
x = ±5
Best of Luck!
Answer:
[tex]\large\boxed{x=5}[/tex]
Step-by-step explanation:
[tex]x^{2}[/tex] = 25
Find the square root of 25 to find the value of x (get rid of the exponent).
[tex]\sqrt{25}[/tex] = 5
[tex]\large\boxed{x = 5}[/tex]
Hope this helps :)
Which of the following expresses the sum of 54 and 30 as a product? * O 6 (54 + 30) O 6(9+5) O 9 (6+5) O 9 (54 + 30)
6(9+5)
Step-by-step explanation:
Solve 3(x + 1) + 6 = 33.
Plz
Answer:
The answer is b.
Step-by-step explanation:
Just substitute it. :)
3(8+1)+6=33
8+1=9
9*3=27
27+6=33
Answer:
the answer is b or 8
Step-by-step explanation:
just plug all of them and see if it makes sense
para alumbrar un parque, se colocan luminarias a lo largo de una longitud de 100 metros, si la primera se coloca en el metro 1, la siguiente en el metro 4, la que sigue en el metro 7, y así sucecibamente. en las siguientes posiciones se colocará una luminaria exepto en el metro: a)13 b)19 c) 21 d)28 ayudaaaaaaa
Answer:
c)21
Step-by-step explanation:
"To light a park, luminaries are placed along a length of 100 meters, if the first is placed in meter 1, the next in meter 4, the next in meter 7, and so on. in the following positions a luminary will be placed except in the subway:
a)13 b)19 c) 21 d)28? "
-------------
Luminaries position:
1, 4, 7, ...It makes an AP with the first term of 1 and common difference of 3
The formula for this AP is:
aₙ = 1 + 3(n-1) = 1 + 3n - 3 = 3n - 2From the given options, only one is not in the same format:
c) 21because
21 = 3n - 2 ⇒ 3n = 23 and n= 23/3 is not an integerAnswer is: c) 13
Its a Yes or No question but plz explain
Answer:
No
Step-by-step explanation:
f(x)= 4/-x-2
inverse
f-1(x)= -4/x-2
Find the distance between (11, 10) and (1,3). Round your answer to
the nearest tenth.
Answer:
12.2Step-by-step explanation:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\d=\sqrt{(1-11)^2+(3-10)^2}=\sqrt{(-10)^2+(-7)^2}=\sqrt{149}\\\\d=12.2065...\approx12.2[/tex]
I need help with these two problems please
Problem 2
Plot point L anywhere that isn't on segment JK. Draw a line through point L. I find it helps to make the lines parallel.
Next, use a compass to measure the width of segment JK. Keeping this same width, transfer the nonpencil end of the compass to point L. Draw an arc that crosses the line through L.
Mark this intersection point M. Lastly, use a pen or marker to form segment LM and erase everything else of that line.
======================================================
Problem 3
The ideas of the previous problem will be used here. We copied segment JK to form congruent segment LM. So JK = LM.
The same steps will be used to form segment GN where GN = EF. In other words, segment GN is a perfect copy of segment EF.
If you repeat these steps again, you'll get another segment of the same length. This segment goes from point N to point H. So NH = GN = EF
Then we can say,
GH = GN + NH
GH = EF + EF
GH = 2*EF
5. Theresa decides to donate money to cancer
research each year. Her brother, Tony, also decides
to contribute. Together, they donate $1,000 per
year to cancer research. If Tony is able to donate
1 1/2 times the amount that Theresa is able to
donate, what is the amount in dollars that Tony
will donate after 5 years, assuming the amount
and proportions remain the same cach year?
A. $2.000
B. $2.100
C. $2.450
D. $3.000
E. $3.600
Answer:
3000
Step-by-step explanation:
Tony will donates $3000 after 5 years.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
Donated amount= $1000
Tony is able to donate 3/2 times the amount that Theresa donates.
let Theresa donates x dollar each year
So, x+ 3/2x = 1000
5x/2 = 1000
5x = 2000
x= 400
Thus, Tony donate = 3/2 x 400 = $600
Hence, After 5 years Tony will donate= 600 x 5= $3000
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PLEASE HELP! this is due today!
Answer:
For question 9 = 54
Step-by-step explanation:
54 + 67 = 121
67 - 54 = 13
Answer:1.)k+2x 2.)54 3.) i think is n+n=145
Step-by-step explanation:
27. 8 minus the product of 9 and r
find the slope of the line containing the points (3,-2) and (-1,6)
Answer: the answer is -2
Step-by-step explanation: use slope formula
Name a fourth point that lies in the same plane as points W, S, and Z.
The image consists of a cuboid with VUZY as front side and STXW as back side respectively.
Answer:
Is it y
Step-by-step explanation:
distance, midpoint, and angle measurement a walk in the park
Answer:
Step-by-step explanation:
The distance between to things is how far apart those two things are.
The Distance Formula is
d = √[(x1 - x2)² + (y1 - y2)²]
Midpoint: This is the point that bisects a segment in the middle.
The Midpoint formula is:
M = [(x1 + x2)/2, (y1 + y2)/2]
Angle is a point where two straight lines meet.
A rectangle has an area of 4x2 +19x + 12 and a length of (x + 4). What is the width?
The width of the rectangle with an area x² = 19x + 12 is (4x + 3).
What are the area and perimeter of a rectangle?The area of a rectangle is the product of its length and width.
The perimeter of a rectangle is the sum of the lengths of all the sides.
We know the area of a rectangle is (length×widh).
Given, A rectangle has an area of 4x² + 19x + 12 and a length of (x + 4).
∴ width of the rectangle is = (4x² + 19x + 12)/(x + 4).
Or, we know that the product of two linear equations is a quadratic so,
4x² + 19x + 12.
4x² + 16x + 3x + 12.
4x(x + 4) + 3(x + 4).
(x + 4)(4x + 3).
So, the width of the rectangle is (4x + 3).
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Which expression is equivalent to x to the power of 4 multiply by x to the power of negative 2 is?