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3 years ago

I dont know how to do these questions I would be pleased if someone helped thankyou.

Mathematics

1 answer:

sleet_krkn [62]3 years ago

5 0

Area = area of the square in the center + 2 * area of the 2 quarter circles.

= 5^2 + 2 * 1/4 *3.14 * 5^2

= 25 + 39.25

= 64.3 in^2 answer

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-2x+4=10 <br> 3/4x =2<br> Plz help ill give brainly

Archy [21]

Answer:

$a) \: - 2x + 4 = 10 \\ 4 = 10 + 2x \\ 4 - 10 = 2x \\ - 6 = 2x \\ \frac{ - 6}{2} = x \\ - 3 = x \: or \: x = - 3 \\ \\ b) \: \frac{3}{4x} = 2 \\ 3 = 2 \times 4x \\ 3 = 8x \\ x = \frac{3}{8} \\ 0.375 = x \: \: or \: x = 0.375$

Step-by-step explanation:

please mark me brainliest

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3 years ago

Are the triangles shown below similar? Please explain why or why not.

erica [24]

Yes

Angles r congruent

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3 years ago

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<img src="https://tex.z-dn.net/?f=4%20%20%5Ccos%2860%20%2B%20%20%5Calpha%20%29%20%20%5Csin%2830%20%2B%20%20%5Calpha%20%29%20%20%

Yuri [45]

Answer:

i am very bad at o math i am only at 8 sorry

Step-by-step explanation:

if you could give me a brainliest.

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3 years ago

the lengths of three pieces of wire are in the ratio 10:15:8. if the length of the shortest piece of wire is 2.4 m, find the dif

luda_lava [24]

Hope this helps you.

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3 years ago

Elimination using addition and subtraction. <br> -4x+4y=-20<br> -2x+4y=-2

goldfiish [28.3K]

I would subtract the 2nd from the first one

so -4x - -2x = -2x

4y - 4y = 0

-20 - -2 = -18

-2x = -18

now I would divide that by -2 to get the value for x

so no we have x = 9

now you just have to substitute that into one of the equations and simplify to get y

-2 X 9 + 4y = -2

-18 + 4y = -2

4y =16

y = 4

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3 years ago

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