Answer:
The answer to the question is 2(l+w).
Two coins are selected at random from 5 coins: 3
dimes and 2 quarters. What is the probability that
both are dimes?
What is the radius given the
diameter is 15?
Answer:
7.5
Step-by-step explanation:
the radius of a circle is half of the diameter.
so: 15/2=7.5
hope that helps
A plane traveled 696 miles each way to New York City and back. The trip there was with the wind. It took 6 hours. The trip back was into the wind. The trip back took 12 hours. What is the speed of the wind?
A. Wind is 29 mph
B. Wind is 87 mph
C. Wind is 46 mph
D. Wind is 15 mph
Answer: A. Wind is 29 mph
Step-by-step explanation:
We can define:
Sp = speed of the plane
Sw = speed of the wind.
When the plane travels in the same direction that the wind flows, we can write the total speed as:
S = Sp + Sw
And when the plane travels against the flow of the wind, we can write:
S = Sp - Sw.
Now, we have the relation:
Distance = Speed*Time.
We know that:
Distance = 696 mi.
"The trip there was with the wind. It took 6 hours. "
then:
696mi = (Sp + Sw)*6h
"The trip back was into the wind. The trip back took 12 hours."
696mi = (Sp - Sw)*12h.
Then we have the system of equations:
696mi = (Sp + Sw)*6h
696mi = (Sp - Sw)*12h.
First, let's isolate one of the variables in one of the equations, i will isolate Sp in the first eq:
696mi/6h = Sp + Sw
116 mph - Sw = Sp.
Now we can replace this into the other equation:
696mi = (116mph - Sw - Sw)*12h
Let's solve this for Sw, that is the value that we want to find:
696mi/12h = (116mph - 2*Sw)
58mph - 116mph = -2*Sw
-58mph/-2 = Sw = 29mph.
The correct option is A.
Please help will.gibe brainliest !!!
Answer:
Please give brainliest
Step-by-step explanation:
1. 0, 121, 8
2. 121, 8
3. 121, 8
if y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?
Answer:
39,6
Step-by-step explanation:
[tex] \frac{5}{11} = \frac{18}{y} [/tex]
= 18 x 11
= 198
= 198 ÷ 5
= 39,6
The answer is 39,6
A model car is built on a scale of 1:43.
The model is 11 centimetres long.
How long, in metres, is the real car?
Answer:
4.83 m
Step-by-step explanation:
Given:
Model : car = 1 : 43Model = 11 cmCar = ? mSolution:
11 : x = 1 : 4311*43 = x*1x = 483 cm x = 4.83 m4.83
i hope this helped
Step-by-step explanation:
Pls halp due today >_<. Thank you!
There are 7 days in a week, using this you can fill out the table.
If you have questions, feel free to add a comment to this answer.
Hope this helps.
頑張って!
A company owns two manufacturing plants with daily production levels of 8x + 17 widgets and 5x - 7 widgets, where x represents a minimum quantity. How many more items does the first plant produce daily than the second plant?Immersive Reader
Answer:
3x + 24
Step-by-step explanation:
Given that;
Company owns two manufacting plants with the following daily production levels :
PLANT A:
8x + 17 widgets
PLANT B:
5x - 7 widgets
Where x = minimum quantity
How many more items does the first plant produce daily than the second plant?
Subtract the Plant B's production level from plant A
8x + 17 - (5x - 7)
8x + 17 - 5x + 7
Collecting like terms
8x - 5x + 17 + 7
3x + 24
Hence, the number of items the first plant produce daily than the second plant is :
3x + 24
if (5^0)^x =1 what are the possible values for x?
Answer:
x can be any real value
Step-by-step explanation:
(5^0)^x =1
We know that a^ b^c = a^ ( b*c)
5^(0*x) =1
5^0 =1
1=1
It doesn't matter the value of x because 0*x =0
x can be any real value
4b+5=1+5b what does b equal
Answer:
b=-1
Step-by-step explanation:
1+5b=4b+5
-4b -4b
1+4b=5
-4b -4b
1=4b+5
-5 -5
-4 = 4b
b=-1
sorry i made a mistake this could've been shorter but :D
1y
Which intervals show f(x) decreasing? Check all that
apply.
4
-3 -2 -1
3
[-2.5, -2]
(-2,-1.5)
0 (-1, 1)
[1.5, 2]
[2, 2.5)
(2.5, 3]
4
-8
12
-16
I don't have gotten any answer of this question
Solve for x: -32x + 6 = -12 (1 point)
a
x = 1 and x = 5
Ob
x = -1 and x = -5
С
x = -9 and x = 3
No solution
Answer:
none of the above solutions
Step-by-step explanation:
-32x+6=-12
-32x=-12-6
-32x=-18
divide both sides by 18x=16/9
Find the product. (3x2 + 2y) (5x2 + y) A. 15x4 + 13x2y + 2y2 B. 15x4 + 13x2y2 + 2y2 C. 8x4 + 10x2y.+ 3y2 D. 15x4 + 10x2y + 2y2
Answer:
Its A. 15x^4+13x^2y+2y^2
A strand of hair grows at a constant rate of
a
inch per month. A different strand of hair grows
at a constant rate of 4 inches per year. Is this a proportional relationship, why or why not.
Answer:
No
Step-by-step explanation:
In a single year, there are 12 months. 1 month=1 inch.
12 x 1 inch is 12 inches.
12 is greater than 4, so the answer is not a proportional relationship.
12 is greater than 4, so the answer is not a proportional relationship.
What are ratio and proportion?A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.
A strand of hair grows at a constant rate of 1 inch per month.
In a single year, there are 12 months. 1 month = 1 inch.
12 x 1 inch is 12 inches.
A different strand of hair grows at a constant rate of 4 inches per year.
12 is greater than 4, so the answer is not a proportional relationship.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
#SPJ5
HELP!!!!! Will give out brainliest
The radius of a circle is 3 millimeters. What is the circle's circumference?
r=3 mm
Use 3.14 for .
Answer: bro it’s
18.84
Step-by-step explanation:
there are 60 rooms in a building. 1/4 of the rooms are for management. 1/2 of the rooms are for sales. the rest is for warehouse workers. How many rooms are used for warehouse workers?
Answer:
1/4 is used for warehouse workers.
Step-by-step explanation:
If 1/4 is used for management and 1/2 are used for sales, together, that's only a total of 3/4 leaving 1/4 left for warehouse workers.
Hope this helps.
Answer:
15 rooms (1/4)
Step-by-step explanation:
No of rooms for the management: 60 × 1/4 = 15
No of rooms for the sales: 60 × 1/2 = 30
No of rooms for warehouse workers: Total rooms - (No of rooms for the management + No of rooms for the sales)
= 60 - (15 + 30)
= 60 - 45
= 15
The number of rooms for the warehouse workers is 15 (which is 1/4 of the total number of rooms).
PLS HELP ALGEBRA 2 QUESTION ASAP 5 STARS AND BRAINLIEST what type of polynomial is [tex]-5x^{4}y+3x^{2}y+4xy-6y+1[/tex] and show your work.
Answer:
Binomial
Step-by-step explanation:
Edited to add:
It can also be called a binomial because there are 2 unlike terms x and y. I'm not sure what you are studying, so it may be better to go with binomial. The Quartic is when you are looking at the degree of a single term polynomial.
You can name a polynomial based on terms, or based on degrees.
If it's based on degree it would be bi-quadratic, because it's ^4 and you have 2 different terms. If you're looking at terms it would be binomial because you have x and y to solve for.
The degree of terms is a major deciding factor whether an equation is homogeneous or not. A polynomial of more that one variable is said to be homogeneous if the degree of each term is the same. For example, 2x^7+5x^5y^2-3x^4y^3+4x^2y^5 is a homogeneous polynomial of degree 7 in x and y.
You have a 4 term polynomial with 2 variables x and y. The highest degree in your equation is 5 (4 + 1 from the first term) so the degree of the multivariable polynomial expression is 6.
All these answers are correct, it just depends what you're studying. If some of these words are new, and others you recognize from class or your book, go with the one that looks familiar.
Answer: 5th degree polynomial (quintic polynomial)
====================================================
Explanation:
5x^4y is the same as 5x^4y^1. The exponents 4 and 1 sum to 4+1 = 5
The term 3x^2y, or 3x^2y^1, has the exponents add to 3
The term 4xy has the exponents add to 2
The largest sum of exponents is 5, so we have a 5th degree polynomial
This is known as a quintic polynomial
Note: the degree of the polynomial is equal to the largest sum of exponents for each term, so the degree is 5.
If triangle ABC is reflected over the y-axis which point(s) will be their own image(s)?
Answer:
Please read the explanation!
Step-by-step explanation:
Hi! I will try to do my very best with helping you. Because there is not an example that goes along with this question, I will give my own.
Lets say we have triangle ABC in quadrant II. The Points are:
A: (-5,1)
B: (-3,5)
C: (-1,1)
If we plot that than we have a triangle. And when we reflect anything, not just a triangle, we would need to basically flip it over and mirror the image. The triangle will move, but it is the same triangle as it was before. All that has happened is that is was married to the otherside.
If you are a bit confused think of when you are in front of a mirror.
So let's reflect it over the y-axis.
When in doing so, you need to make sure that the x in (x, y) is changed into a positive number. We need to make sure that we know that quadrant I has positive x-axis.
So,
A becomes (5,1)
B becomes (3,5)
C becomes (1,1)
And if you plot that it should be flipped or reflected like a mirror image.
I really hope this helped!
can anybody help me out thanks I'm having trouble
Answer:
b
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
theres a test that was like this one that i tookk
The control group in an experiment is the group that did not have a variable changed.
A False
B True
Write interval notation of the given number line.
-3 -2 -1 0 1 2 3 4 5
Answer:
(0,3]
Step-by-step explanation:
You put ( when the number is included and ] when the number isn't included. So 0 is included and 3 isn't.
Hi.
i need help with this question.
Workings Please.
1. A 210° sector of a circle of radius 10cm is used to make a cone. Find the radius of the base of the cone and it's height.
Answer: radius = 5.83 cm height = 8.12 cm
Step-by-step explanation:
First, let's find the circumference of the 210° section of the circle.
[tex]C=2\pi r\bigg(\dfrac{\theta}{360^o}\bigg)\\\\\\C=2\pi(10)\bigg(\dfrac{210^o}{360^o}\bigg)\\\\\\C=\dfrac{35}{3}\pi[/tex]
The circumference of the the cone is [tex]\dfrac{35}{3}\pi[/tex] . We can use this to find the radius .
[tex]C=2\pi r\\\\\dfrac{35}{3}\pi=2\pi r\\\\\\\dfrac{35\pi}{3\cdot 2\pi}=r\\\\\\\dfrac{35}{6}=r\\\\\\5.83=r[/tex]
When you fold the 210° section into a cone, the slant height is the original radius of 10. We can use the radius and slant height of the cone to form a right triangle with the height. Use the Pythagorean Theorem to find the height.
radius² + height² = slant height²
[tex]\dfrac{35}{6}^2\ +\ h^2=10^2\\\\\\.\qquad \quad h^2=10^2-\bigg(\dfrac{35}{6}\bigg)^2\\\\.\qquad \quad h=\sqrt{\dfrac{6^2(10)^2-35^2}{6^2}}\\\\\\.\qquad \quad h=\sqrt{\dfrac{2375}{36}}\\\\\\.\qquad \quad h=8.12[/tex]
If -5 > a and a > b then -5 is *
Answer:
greater than b
Step-by-step explanation:
We can use the transitive property for this answer. The transitive property states that if A=B, and B=C, A will always be equivalent to C. Similarly in this equation, -5 is greater than a, and a is greater than b, so -5 must be greater than b.
Hillside Travel pays its employees $10 per hour plus 8% commission on all trips booked. Tyrus worked 20 hours last week and booked trips amounting to $2,100. What was his gross pay for last week? *
Answer:
$368
Step-by-step explanation:
Well, if they pay their employees $10 per hour, and Tyrus worked 20 hours, then we have a base amount of 200, as 10*20=200. Next, we need to think about the 8% commission from 2100, so we multiply 2100*.92 to get 1932 so 2100-1932=168. So, to get the gross pay, you add the base amount, 200, and the commission, 168, together to get $368. Tyrus got a gross pay of 368 dollars last week.
Jenae works at a clothing store and gets a bonus at $10 a month, plus $0.50 every time she sells the item of a month. Every costumer compliments her service to the mangers, she gets a $2 bonus. If jenae sold the item of the month 17 time and reciuved 2 costomer compliments. What will her bonus be this month
Answer: Jenae will get $22.50 at the end of the month
Step-by-step explanation:17*0.50=8.50
2*2=4
8.50+4=12.50
12.50+10=22.50
Answer:
$22.50
10 + 0.5 (17) + 2 (2)
10 + 8.5 + 2 (2)
10 + 8.5 + 4
22.50
Which point best approximates StartRoot 45 EndRoot? A number line going from 0 to 9. Point A is slightly to the right of 2, point B is to the left of 5, point C is to the left of 7, and point D is to the right of 7.
Answer:
b
Step-by-step explanation:
Select all the true statements. Line segment from -6 to 6. Point A is at -2, point b is at 1 and point c is at 6 Group of answer choices The length of AB is -3. The length of BC is 6. AB + BC = AC d(B, C) = BC = |6 - 1| AB + AC = BC
Answer:
AB + BC = AC
d(B, C) = BC = |6 - 1|
Step-by-step explanation:
Given the following information :
Line segment from -6 to 6. Point A is at -2, point b is at 1 and point c is at 6 Group of answer choices The length of AB is -3
Length of line segment spans from - 6 to + 6
Location of points :
Point A = - 2
Point B = 1
Point C = 6
AB = 3
BC = 5
AC = 8
AB + BC = AC ; 3 + 5 = 8
d (B, C) = 5 = |6 - 1|
Kindly check attached picture for more explanation
Th sum of three(3) consecutive integers is 72. What are the integers?
Answer:
X + X + 1 + X + 2 = 72
3X + 3 = 72
3X + 3 - 3 = 72 - 3
3X = 69
3X/3 = 69/3
X = 23
Step-by-step explanation:
To solve for X, you first add the integers together and the X variables together. Then you subtract three from each side, followed by dividing by 3 on each side.
Carla is 5 years older than Nick and Nick is 4 years older than Nancy. The
sum of their ages is 46. How old is Carla?
Answer:
Carla is 20 years old
Step-by-step explanation:
If Nancy is 11, then Nick is 15 and Carla 20. 11+15+20=46