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4 years ago

Please show me the step on how to do this. I know the answer but how do you get it.

Mathematics

1 answer:

kozerog [31]4 years ago

5 0

So, to find the volume of just the cement part, you need to find the volume of the whole shape, then find the volume of the garden. then subtract them to find the volume of just the cement sidewalk.

volume of garden: 16 x 6 x 1 (l x w x h)= 96 ft3

volume of whole: length=16+4+4=24, width=6+4+4=14, height=1
you have to add 4 to each sides of the length and width to get the entire length.
volume of whole=24 x 14 x 1=336 ft3

now subt.

336-90=246 ft3 would be the volume of the cement walkway.

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Evaluate 1+(-2/3)-(-m)where m = 9/2

slava [35]

Answer:

29/6

Step-by-step explanation:

The expression that we have to evaluate in this problem is

$1+(-\frac{2}{3}) -(-m)$

for $m=\frac{9}{2}$ .

First of all, we re-arrange the expression. We know that:

- The product of a positive number (+) and a negative number (-) is negative (-)

- The product of a negative number (-) and a negative number (-) is positive (+)

So we can rewrite the expression as

$1-\frac{2}{3}+m$

Also, we can combine the two numerical terms:

$1-\frac{2}{3}=\frac{3}{3}-\frac{2}{3}=\frac{1}{3}$

Therefore the expression becomes

$\frac{1}{3}+m$

Now we can substitute $m=\frac{9}{2}$ , and we find:

$\frac{1}{3}+\frac{9}{2}=\\\frac{2}{6}+\frac{27}{6}=\\\frac{2+27}{6}=\frac{29}{6}$

8 0

4 years ago

What is the y-intercept of the line that passes through the points (2, -1) and (-3, 9)?

Dmitriy789 [7]

Answer:

y- intercept: 3

Step-by-step explanation:

m = (y-y')/(x-x')

y = mx + b b: y intercept

m = (9 - -1) / (-3 -2) = 10 / -5 = -2

b = y - mx = -1 - (-2)*2 = -1 + 4 = 3

8 0

3 years ago

PLEASE HELP ILL MARK YOU BRAINLIEST A student is assessing the correlation between the number of hours a plant receives sunlight

Studentka2010 [4]

Glad you ask!!!

Part A: ok so... linear correlation between the number of hours of sunlight that a plant receives and the eight it grows. so its like the amount of sunlight.

Part B: The function that is the best fit is y=3x+4

Part C: The slope shows the plant and the intersection with the y axis

Hope this helps :)

5 0

3 years ago

Find mZA. Round the answer to the nearest whole degree.<br> A. 31°<br> B. 499<br> C. 650<br> D. 90°

choli [55]

Answer:

I haven't done this in a while but I'm pretty sure it's C.

Step-by-step explanation:

A triangle has to have 180 degrees. angle a and c are congruent. angle b is slightly smaller. therofore, istead of all the angles biegh 60, a and c are 65 thus leaving angle b 50 degrees

7 0

3 years ago

Okay here it is. I've been stuck.

fiasKO [112]

I believe that the Answer is 1 or 10/10

4 0

4 years ago

Read 2 more answers