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Korolek [52]
3 years ago
11

The formula for the lateral area of a pyramid is A = 1/2pl. What is p in terms of A and l ?

Mathematics
1 answer:
Ket [755]3 years ago
5 0
The answer is letter D.
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Write an equation parallel to the line
Schach [20]
The easiest way to find a parallel equation is to write your equation in slope-intercept form. The general equation for slope-intercept form is y = mx + b, where m = the slope of the equation, b = the y intercept, and x and y are your variables.

You're given 5x + 10y = -4. 
1) Move 5x to the right side by subtracting 5x from both sides:
5x + 10y = -4
10y = -5x - 4

2) Divide both sides by 10 to get y by itself on the left. Simplify:
10y = -5x - 4\\
y = - \frac{5}{10} x -  \frac{4}{10} \\
y = - \frac{1}{2}  x -  \frac{2}{5}



<span>Remember that for parallel lines, the slope, m, is the same for both equations. You can make the y-intercept, b, whatever number you want.

When the equation is in slope-intercept form, </span>y = - \frac{1}{2} x - \frac{2}{5}, you can see that m =  - \frac{1}{2}. 

A parallel equation is in the form: 
y = - \frac{1}{2} x + b

Plug in anything you want for b. One example is: y = - \frac{1}{2} x + 3

-------

Answer: y = - \frac{1}{2} x + 3 (just one example)



7 0
2 years ago
Read 2 more answers
Help please<br> What is the value of y in this system of equations? <br>-6x+2y=-18 <br>-3x-2y=54
storchak [24]

Answer:

-6x+2y=-18 = y = -9 + 3x

-3x-2y=54 = y = -27 - \frac{3x}{2}

Step-by-step explanation:

I hope I understood this correctly.

8 0
2 years ago
(25pts) Due soon! Help!
navik [9.2K]

Answer:

true

True

False

False

Step-by-step explanation:

a. The problem tells me that for every 3 parts of red paint, I have 8 parts of yellow paint. To find the ratio of 1 part of yellow paint I can write the following statement

For 8 parts of yellow paint ------------ 3 parts of red paint

        1 part of yellow paint  -------------      x

So x=\frac{1 part of yellow paint * 3 parts of red paint }{8 parts of yellow paint}

x= \frac{3}{8} parts of red paint

b, I have the following relationship

3 parts of red paint ----- 8 parts of yellow paint

If I multiply the entire expression by 3 I have left

3 * 3 parts of red paint -------- 8 * 3 parts of yellow paint

So

9 parts of red paint ---------- 24 parts of yellow paint

c.I have the same relationship

3 parts of red paint ----- 8 parts of yellow paint

If I multiply the entire expression by 1/2 I have left

3/2 parts of red paint -------- 8/2 parts of yellow paint

So

3/2 parts of red paint ---------- 4 parts of yellow paint

as 3/2 is different from 10, then the approach is false

d. observing the relation of part a,

For 3 parts of red paint ------------ 8 parts of yellow paint

      1 part of red paint   -------------      x

So x=\frac{1 part of red paint * 8 parts of yellow paint }{3 parts of red paint}

x= \frac{8}{3} parts of yellow paint  that is different than 3/8 parts of yellow paint, then the approach is false

6 0
3 years ago
Read 2 more answers
42,300 multiply by 10 can someone show the work
Assoli18 [71]
       10
x42,300
-------------
          00
        000
     3,000
   20,000
400,000
-------------
423,000
3 0
3 years ago
Read 2 more answers
What is 56(x+12+4) simplified
Evgen [1.6K]
The answer:


56 × (x + 15)
5 0
3 years ago
Read 2 more answers
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