2 years ago

Find the area of the given triangles.

Mathematics

1 answer:

liubo4ka [24]2 years ago

3 0

Answer:

40 ft squared

Step-by-step explanation:

to find the area of a triangle, you do base x height divided by 2

5 x 16 = 80

80 divided by 2 is 40

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Resolver la siguiente ecuación por eliminación o sustitución: a-8b= -9 a-2b= -7

Crazy boy [7]

Answer: Solution: $a=\dfrac{-19}{3}$ and $b=\dfrac{1}{3}$ .

Step-by-step explanation:

The given pair of equations:

$a-8b= -9\ ...(i)\\\\ a-2b= -7\ ...(ii)$

Eliminate equation (i) from (ii) , we get

$-2b-(-8b)=-7-(-9)\\\\\Rightarrow\ -2b+8b=-7+9\\\\\Rightarrow\ 6b=2\\\\\Rightarrow\ b=\dfrac{1}{3}$

Put value of b in (ii) , we get

$a-2\times\dfrac{1}{3}=-7\\\\\Rightarrow\ a=-7+\dfrac{2}{3}\\\\\Rightarrow\ a=\dfrac{-21+2}{3}\\\\\Rightarrow\ a=\dfrac{-19}{3}$

Solution: $a=\dfrac{-19}{3}$ and $b=\dfrac{1}{3}$ .

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3 years ago

24 times 4 tons 2 pounds

algol13

24 x 4 tons and 2 pounds is:

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3 years ago

In the figure, if the measure of 21 = 112°, what's the measure of 212?

Usimov [2.4K]

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What is the solution to the system of equations of linear equations 2x + 4y = 38 and 10x + 3y = 105

nata0808 [166]

<span>A) 2x + 4y = 38
B) 10x + 3y = 105
Multiplying A) by -5
A) -10x -20y = -190 then adding it to B)
</span><span>B) 10x + 3y = 105

-17y = -85
y = 5
x = 9

</span>

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2 years ago