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Trava [24]
3 years ago
12

Finds the height of a triangle with a base of 35 ft and an area of 262.5 ft2

Mathematics
1 answer:
ddd [48]3 years ago
4 0

The answer to this is that the height is equal to 15 feet. This is because to find the area of a triangle the equation is A=1/2bh. So what you have to do is do the opposite. Input the numbers into the equation 262.5= 1/2(35)h. Then multply 1/2 by 35 to get 17.5h. Next you divide each side by 17.5 and you get 15.

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Can someone please help me??
valkas [14]
The answer is 78 feet of fencing. This is because you need to find the perimeter of the yard. To find the perimeter of the yard, you add the sides together, so 21+21+18+18 = 78.
5 0
3 years ago
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Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the sq
TiliK225 [7]

Answer:

The perimeter of rectangle is 18\ cm

Step-by-step explanation:

Let

x-----> the length of the rectangle

y----> the width of the rectangle

we know that

x=y+5 ----> equation A

120=xy+2x^{2}+2y^{2}  ---> equation B (area of the constructed figure)

substitute the equation A in equation B

120=(y+5)y+2(y+5)^{2}+2y^{2}

120=(y+5)y+2(y+5)^{2}+2y^{2}\\ 120=y^{2}+5y+2(y^{2}+10y+25)+2y^{2}\\ 120=y^{2}+5y+2y^{2}+20y+50+2y^{2}\\120=5y^{2}+25y+50\\5y^{2}+25y-70=0

using a graphing calculator -----> solve the quadratic equation

The solution is

y=2\ cm

Find the value of x

x=y+5 ----> x=2+5=7\ cm

Find the perimeter of rectangle

P=2(x+y)=2(7+2)=18\ cm

4 0
3 years ago
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For every blue strip you have, you need two yellow strips. You have 12 blue strips. How many yellow strips do you need ?
Katen [24]

Answer:

24 yellow strips

Step-by-step explanation:

since you need two yellow for every blue, you need to double the total of blue to get the number of yellow that are needed.

7 0
3 years ago
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Find the area someone please help
a_sh-v [17]

Answer:

33.3cm²

Step-by-step explanation:

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5 0
2 years ago
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Quick pls
navik [9.2K]

First, let's see how 23 compares with the squares of the positive whole numbers on the number line.

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

The value of 23 is right between the square of 4 and the square of 5. Thus, the value √23 will be between 4 and 5.

Since 23 is much, much closer to the square of 5 than the square of 4, we can assume that the value √23 will be closer to 5 on the number line than 4.

Look at the attached image to see where I plotted the approximate location of √23.

You will realize that this approximation is pretty close since the actual value is roughly 4.80.

Let me know if you need any clarifications, thanks!

7 0
3 years ago
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