All categories

3 years ago

17. A school custodian waxed a gymnasium floor that measured 20 feet by 20 feet. How many square feet did she have to wax?

Mathematics

2 answers:

Nadya [2.5K]3 years ago

6 0

20 feet x 20 feet=400 square feet

adelina 88 [10]3 years ago

4 0

400 squar feet, 20 times 20 is 400

You might be interested in

Given the rectangle ABCD, AB has a slope of 2/3, what is the slope of BC?

erastova [34]

Answer:

slope = - $\frac{3}{2}$

Step-by-step explanation:

note that BC is perpendicular to AB, hence the slope of BC is the negative reciprocal of the slope of AB

$m_{BC}$ = - $\frac{1}{2/3}$ = - $\frac{3}{2}$

7 0

3 years ago

Pls help! Due soon. I will give brainiest *no links*

Artyom0805 [142]

Answer:

#2 a.

#3 c.

#4 a.

#5 c.

#6 b.

5 0

3 years ago

Find the equation of the line through point (-5,5) and perpendicular to y = 5/9x - 4

tankabanditka [31]

Answer:

$9x+5y=-20$

Step-by-step explanation:

$y = \frac{5}{9} x - 4$

compare with that y=mx+c

where m=slope .

So after comparing we get m= $\frac{5}{9}$

As the lines are perpendicular

$m1*m2=\ -1$

$m2 \ =\ \frac{-1}{m1}$

therefore m2= $\frac{-9}{5}$

Now from the equation

$y - b = m(x - a )$ this equation passing to the point (-5,5) with m= $\frac{-9}{5}$

$y-5=\frac{-9}{5} (x+5)\\5y-25=-9x\ -45\\9x+5y=-20$

Therefore equation is

$9x+5y=-20$

7 0

3 years ago

Find the volume of the cone.

sergejj [24]

<h3>Right circular cone</h3>

Solve for volume

V≈37.7

r Radius

h Height

3=π·22·9
3≈37.69911

6 0

3 years ago

Read 2 more answers

Sebastian saved money in his piggy bank. He kept track on how much money he saved at the end of each week on the line graph belo

Luba_88 [7]

Answer:

$90

Step-by-step explanation:

Look at the number 7 on the bottom right of the graph. That means at the end of 7 weeks. Now look vertically up from there until you see a point directly above 7 weeks. Look to the left of that point, and you see that the point directly above 7 weeks is at the level of $90. That means that at the end of 7 weeks, he had $90.

4 0

3 years ago

Read 2 more answers