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3 years ago

I need help!! 10 POINTS! NEED BY 8:30PM

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

7 0

Answer:

Area of Figure Shown (Diamond) = 200 square feet

Step-by-step explanation:

The diamond shape shown can be broken down into two triangles, one on top and one on bottom.

The area of a triangle is:

A = 0.5 * length * height

Lets find the area of the top triangle:

The base length is 20 and the height will be 20 - 15 = 5

So, Area would be:

Area = 0.5 * 20 * 5 = 50

Now, lets find area of bottom triangle (upside down triangle):

The base length is still 20

The height this time is 15 (given)

So, area would be:

Area = 0.5 * 20 * 15 = 150

Total Area (of Diamond) = 150 + 50 = 200 square feet

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The mean of four consecutive even numbers is 15. The greatest of these numbers is a1. The least of these numbers is a2.

skad [1K]

X + (x + 2) + ( x + 4) + (x + 6)
-----------------------------------   = 15
   4

4x + 12
--------- = 15
    4

Multiply by 4 on both sides

4x + 12 = 60
subtract 12 from both sides
4x = 48
divide by 4 on each side
x = 12
x + 2 = 14
x + 4 = 16
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3 years ago

F + 25 = 50<br><br> f = <br><br> please help

Xelga [282]

Answer:

25 because 50 minus 25 is 25

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2 years ago

Read 2 more answers

8x+3y= 28 and 7x-3y=2<br>solve for x and y simontaniasly using elimination

EleoNora [17]

Answer:

x=2, y=4

Step-by-step explanation:

When using elimination, the objective is to elimate one variable. In this case, we see that "y" can easily be eliminated by adding the two equations together since you will get 3y + (-3y) which will eliminate y because the value would become 0, letting us solve for x.

$\left \{ {{8x+3y=28} \atop {7x-3y=2}} \right. +\\$

Then we get

$15x =30$ , because the y's will eliminated, and 8x+7x is 15x, and 28+2 is 30.

Then divide by 15 on both sides and you get x=2

If x=2, then we can substitute that value into any of the previous given equations and find the value of y.

8×2 +3y = 28

16+3y=28

3y=12

y=4

So the answer to your system of equations would be x=2, and y=4

You can substitute the answers we found to see that they satisfy the equation.

Hope this helped.

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3 years ago

Please I need it asap

Sauron [17]

Answer:

5) √(3² + 5²) = √34

6) √(4² - 3²) = √7

7) the visible answers all say exactly the same thing in different ways and are all correct.

Step-by-step explanation:

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3 years ago

Find the coordinates of C' after a reflection across the line

iragen [17]

<h3>Answer: (4,2)</h3>

==============================================================

Explanation:

C is at (0,0). Ignore the other points.

Reflecting over y = 1 lands the point on (0,2) because we move 1 unit up to arrive at the line of reflection, and then we keep going one more unit (same direction) to complete the full reflection transformation. I'll call this point P.

Then we reflect point P over the line x = 2 to arrive at the location Q = (4,2). Note how we moved 2 units to the right to get to the line of reflection, and then keep moving the same direction 2 more units, then we have applied the operation of "reflect over the line x = 2"

So we have started at C = (0,0), moved to P = (0,2) and then finally arrived at the destination Q = (4,2). This is the location of C' as well.

All of this is shown in the diagram below.

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3 years ago