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2 years ago

In the diagram below, the top of each stair is parallel to the floor. What is the value of y?

Mathematics

1 answer:

Semmy [17]2 years ago

7 0

The value of y would be C) 38 degrees because if the floor and the top of the stair are parallel, then that makes the diagonal line a transversal, therefore the 38 degree angle and y are alternate interior angles.

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Chapter 2

Mashutka [201]

Answer:

11.20

Step-by-step explanation:

Multiply both equations by 100:

19.99=1999

8.79=879

1999-879=1120

Divide by 100:

1120/100=11.20 saved ................

5 0

2 years ago

The area of the circle is 144π m2 What is the diameter of the circle?

Over [174]

Answer:

Step-by-step explanation:

Remember that

Area of Circle = $\pi r^2$

$\pi = pi \\r = radius$

They told us that for this circle, the area is $144\pi m^2$

If you put it back into the formula for area of a circle we get:

Area of Circle = $\pi r^2$

$144\pi = \pi r^2$

Divide both sides by $\pi$ .

144 = $r^2$

Now we want to solve for r (r = radius).

You need to square root each side

$\sqrt{144} = \sqrt{r^2}$

$12 = r$

So now we know the radius, $r = 12$ metres

Also remember that

Diameter = $2r$

So,

Diameter = 2 times 12 = 24 metres

5 0

2 years ago

What is <img src="https://tex.z-dn.net/?f=12%20%7B%3F%7D%5E%7B2%7D%20%20%5C%5C%20" id="TexFormula1" title="12 {?}^{2} \\ "

marin [14]

$a^n=\underbrace{a\cdot a\cdot a\cdot ...\cdot a}_{n}\\\\12^2=\underbrace{12\cdot12}_{2}=144$

8 0

3 years ago

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RUDIKE [14]

Answer:

Step-by-step explanation:

I put it in my calculator

3 0

2 years ago

Read 2 more answers

Rewrite the following linear equation in slope-intercept form. y+4=-2(x-1)

romanna [79]

Answer:

y = -2x - 1

Step-by-step explanation:

Rewrite y + 7 = -2(x - 3) in slope-intercept form (which is y = mx + b):

First, perform the indicated multiplication:

y + 7 = -2x + 6

Combining the constants, we get

y = -2x - 1

This is the desired equation in slope-intercept form. slope is -2 and y-intercept is -1.

5 0

2 years ago