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3 years ago

I need help with this ' ASAP!

Mathematics

2 answers:

pishuonlain [190]3 years ago

7 0

The answer is 120 square units. The area of the shaded units combined is 120 and the area of the entire shape is 240. So when you minus 120 from 240, then you get 120 left as your answer.

Taya2010 [7]3 years ago

4 0

Answer:

H. 120

Step-by-step explanation:

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What is the length, in units, of segment CD?

leonid [27]

Answer:

The answet is C.

Step-by-step explanation:

First, you have to find the angle of ACB using Sine Rule, sinθ = opposite/hypotenuse :

$\sin(θ ) = \frac{oppo.}{hypo.}$

$let \: oppo. = 4 \\ let \: hypo. = 5$

$\sin(θ) = \frac{4}{5}$

$θ = {\sin( \frac{4}{5} ) }^{ - 1}$

$θ = 53.1 \: (1d.p)$

Given that line AB is parallel to line CD so ∠C = 90°. Next, you have to find the angle of ACD :

$ACD = 90 - 53.1 = 36.9$

Lastly, you can find the length of CD using Cosine rule, cosθ = adjacent/hypotenuse :

$\cos(θ) = \frac{adj.}{hypo.}$

$let \: θ = 36.9 \\ let \: adj. = 5 \\ let \: hypo. = CD$

$\cos(36.9 ) = \frac{5}{CD}$

$CD \cos(36.9) = 5$

$CD = \frac{5}{ \cos(36.9) }$

$CD = 6.25 units\: (3s.f)$

4 0

3 years ago

Please help? will mark branliest

Art [367]

Answer:

-0.25

Step-by-step explanation:

did the math

its 12 + {2 - (4xa^2)} dived by 7 + b

12 + {2 - (100} dived by 8

12 + -98 dived by 8

-0.25

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3 years ago

Is 8.25635... rational or irrational

melisa1 [442]

Answer:

Irrational

Step-by-step explanation:

Because the decimal part in 8.25635... is non repeating non terminating type. Therefore it is an irrational number.

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4 years ago

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Ghella [55]

Answer:

Step-by-step explanation:

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4 years ago

F(x) = x2 + 3x + 5? how do you slove this

hoa [83]

Answer:

it equal 3+3+0+123393.8393

Step-by-step explanation:

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4 years ago