I really need help!

Mr Garcia has 15 boys and 10 girls in his math class. He selects two students at random to demonstrate how they solved the day’s challenge assignment. What is the probability that both students are girls? (Leave the answer in simplified fraction form.)

Answer:

13 x 9 x 5

Step-by-step explanation:

because there is 13 steps in one flight and there fore we need to multiply 13 x 9

then we have to multiply the product by 5 because it is asked how many steps does she climb in five days

Answer:

1/8

Step-by-step explanation:

1/2=4/8

Answer: 60

Step-by-step explanation:

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The transformations are ...

  (x, y) ⇒ (-y, x) . . . . 90° rotation

  (x, y) ⇒ (-x, -y) . . . . 180° rotation

  (x, y) ⇒ (y, -x) . . . . 270° rotation

Each successive rotation is a 90° rotation from the previous one. This makes writing the formulas in a spreadsheet really easy. The attached shows the transformed coordinates.

Step-by-step explanation:

It was correct on edge 2021

The equation that is correct regarding the measure of <MNP is 1/2(x-y)

In order to determine the measure of m<MNP, we will use the theorem shown below;

The angle at the vertex is half the difference of angles at the intercepted arcs.

The angle at the vertex = m<MNP

angle a the arcs are x and y

Hence;

m<MNO = 1/2 (x - y)

Hence the equation that is correct regarding the measure of <MNP is 1/2(x-y)

Learn more on circle geometry here:https://brainly.com/question/24375372

Answer:

[tex]f(x) = 100(1.05)^t[/tex]

Answer:

Let 'x' represent the money Alan needs to work to earn $120 (enough money for skateboard).

7.50x = 120

.......

........

x = 16 hr

Alan needs to work 16 hours to earn enough money for the skateboard.

Step-by-step explanation:

Answer:

He will have to work for 16 hours

Answer:

300 + 4x

Step-by-step explanation:

200 + 100 = 300

3x + x = 4x

(a plain variable like "x" always has an invisible one in front of it)

Answer:

The measure of uT is given = 31.6

and it is given ,that WV bisect the line UT

so,the measurement of US = 31.6/2

= 15.8

hope it helps and your day will be full of happiness

Answer:

250.35

Step-by-step explanation: pythagorean theorem

215^(2)+x^(2)=330^(2)

46225+x^(2)=108900

x^(2)=62675

x=5√2507

x=250.35

Answer:

250.35 yards

Step-by-step explanation:

Use the pythagorean theorem to find the height.

[tex]\sqrt{a^{2}+b^{2} }=c[/tex]

Algebraically change the equation to equal to b.

[tex]\sqrt{c^{2}-a^{2} }=b[/tex]

[tex]\sqrt{330^{2}-215^{2} }=b[/tex]

b=250.35 yards

Answer:

x+9

Step-by-step explanation:

if you expand...you could get x+9, which is the same as the given expression

Answer:

5h+20=e

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

Youd do 8x8 because the base of the triangles are 8 and a square has equal sides all around

Answer:

The image is just darkness what do you mean

Step-by-step explanation:

Answer:

The answer to your question is 367

Step-by-step explanation:

I hope this helps answer your question

:D

Answer:367

Step-by-step explanation:

because I know what it is!

I hope this helped

Answer: 7

Step-by-step explanation: All you do is simplify it so. 2+2(22)−3

=2+(2)(4)−3

=2+8−3

=10−3

=7

Answer:

7 or 3

Step-by-step explanation:

its 7 if the -3 isnt minus 3 isnt with the ^2

its 3 if it is with the ^2

Answer:

The answer is

C = 37.7 m. (meters)

Answer:

y = -4

x = -2

Step-by-step explanation:

1. Approach

To solve a system by the process of elimination, one wants to manipulate an equation such that when one adds the equations in a system, one of the variables cancels out. The easiest way to do this is to select a variable, then find the LCM (least common multiple) of the two coefficients of the selected variables. Then multiply each of the equations by the respect factor that is needed to get the coefficient of the variable to the LCM. In the event that the cofficients do not have inverse signs, multiply one of the equations by (-1). No all that is left is to add the equations, use inverse operations to solve for the other variable, then back substitute to find the value of the selected varibale.

2.Set up the process

3x - 2y = 2

5x - 5y = 10

Selected variable; x

LCM of the coefficents (3, 5) = 15

Multiply the first equation by 5, and the second by 3

(3x - 2y = 2) *5

(5x - 5y = 10)*3

Resulting system

15x - 10y = 10

15x - 15y = 30

Now, multiply the first equation by (-1) to make the coefficents additive inverses

(15x - 10y = 10) (-1)

15x - 15y = 30

-15x + 10y = -10

15x - 15y = 30

3. Solving

Add the two resulting systems,

-15x + 10y = -10

15x - 15y = 30

_____________

-5y = 20

Inverse operations

-5y = 20

/-5        /-5

y = -4

Back solve

3x - 2y = 2

(3x) - 2(-4) = 2

Simplify,

3x + 8 = 2

Inverse operations,

3x + 8 = 2

    -8      -8

3x = -6

/3   /3

x = -2

Answer:

x = 120 degrees

Step-by-step explanation:

angle below x is 40 degrees because it is a corresponding angle.

x = 180 - 40 - 20 = 120 degrees

Answer:

x=120 I believe

Step-by-step explanation:

so using the left side, we can form the equation x+20+_=180

x+_=160

we know the 2 lines that are parallel, and they have a line through it (idrk what it's called)

_=40

x+40=160

x=120

Answer:

3√150

Step-by-step explanation:

I can't really explain it sorry but I'll try my best...

Option 1. Use a calculator to find the square root by inputing √150

Option 2. Option 1 is the only possible way because you cannot use trial and error as the number will never be exact, that is why the answer is represneted the way it is.

Answer:

the answer is D. 147 degrees

Step-by-step explanation:

114+33=147

check answer by

180-147=33

33+33+114=180

Step-by-step explanation:

I'm pretty sure the answer is D) 147°

Answer:

A) No, because the greatest common factor is 8y?, and the completely factored form is 8y2(4y2 - 6y + 3).

Step-by-step explanation:

Considering the expression

4y(8y3 – 12y2 + 6y)

From the elements in the parenthesis, 2 and y can still be factored out such that what will be left of each element

8y3/2y = 4y2

12y2/2y = 6y

6y/2y = 3

Hence

4y(8y3 – 12y2 + 6y) = 4y*2y(4y2 - 6y +3)

= 8y2(4y2 - 6y + 3)

Answer:

8.7 feet

Step-by-step explanation:

Pythagorean Theorem : 10 is hypotenuse and 5 is opposite. 10^2-5^2=75. Now take 75 and square root it and you will approximately get 8.7.

Answer:

A ) W

Step-by-step explanation:

Answer:

$170.89 I think

Step-by-step explanation:

Answer:

answer amswersmwkkw

Step-by-step explanation:

7%

Answer:

(3,-3)

Step-by-step explanation:

put each equation in slope intercept form. they turn into y = x - 6 and y = -2x + 3. now you can graph them. the point where they intersect is the solution.