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astra-53 [7]
3 years ago
14

PLEASE HELP THANK YOU BRANLIEST IS PROVIDED

Mathematics
2 answers:
Eduardwww [97]3 years ago
8 0

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➳\small\fbox\red{1}\small\fbox\orange{4} \small\fbox\pink{7}\small\fbox\green{.} \small\fbox\blue{1}\small\fbox\purple{2}\small\fbox\pink{Iches²}\

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<em><u>H</u></em><em><u>ope </u></em><em><u>It </u></em><em><u>helpS</u></em>

<em><u>~ʆᵒŕ∂ཇꜱꜹⱽẻⱮë</u></em>

Nastasia [14]3 years ago
3 0

Answer:

Solution given;

area of semi circle=½πr²=1/2×3.14×4²=25.12in²

area of rectangle ABCD=l×b=8×13=104in²

area of rectangle CEFI=l×b=3×6=18in²

Total area =25.12+104+18=147.12in²

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Answer:

  1

Step-by-step explanation:

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4 0
3 years ago
The Law and Order detectives enter a house at 11:30 am and found a man on the floor murdered. They take his body temperature fin
taurus [48]

Answer:

Time of murder = 10:39 am

Step-by-step explanation:

Let the equation of exponential function representing the final temperature of the body after time 't' is,

f(t) = a(e)^{nt}

Here, a = Initial temperature

n = Constant for the change in temperature

t = Duration

At 11:30 am temperature of the body was 91.8°F.

91.8 = 98.6(e)^{nt} --------(1)

Time to reach the body to the morgue = 12:30 pm

Duration to reach = 12:30 p.m. - 11:30 a.m.

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Therefore, equation will be,

84.4 = 91.8(e)^{n\times 1}

eⁿ = \frac{84.4}{91.8}

ln(eⁿ) = ln(0.9194)

n = -0.08403

From equation (1),

91.8 = 98.6(e)^{-0.08403t}

(e)^{0.08403t}=\frac{98.6}{91.8}

ln[(e)^{0.08403t}]=ln[\frac{98.6}{91.8}]

0.08403t = 0.07146

t = 0.85 hours

t ≈ 51 minutes

Therefore, murder was done 51 minutes before the detectives arrival.

Time of murder = 11:30 - 00:51

                          = 10:90 - 00:51

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7 0
2 years ago
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