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3 years ago

PLEASE HELP WITH GEOMETRY!! WILL GIVE BRAIN!!!

Mathematics

2 answers:

xenn [34]3 years ago

5 0

Answer:

1,726 cm

Step-by-step explanation:

it boils down to this equation:

2(19×29)+2(19×6.4)+2(29×6.5)

bc if you look closely, it's just each side twice (hope that makes sense)

then you work down from there

2(551)+2(123.5)+2(188.5)

1,102+259+337

1,726

Sonbull [250]3 years ago

5 0

Answer:

L = 19

B = 6.5

H = 29

$surface \ area = 2 ((L\times B) + (B \times H) + (H \times L))$

$=2((19\times 6.5) +(6.5 \times 29) + (29\times 19)) \\\\= 1726cm^2$

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Assuming equal rates, 120 miles in 4 hours implies 225 miles in how many hours?

nata0808 [166]

Answer:

7.5 hours

Step-by-step explanation:

Step 1:

120/4 = 225/x Equation

Step 2:

120x = 900

Step 3:

x = 900 ÷ 120 Divide

Answer:

x = 7.5

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3 years ago

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nignag [31]

Answer:

Step-by-step explanation:

Each of the provided angles are also a part of linear pairs, so 180-145=35

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4 years ago

Multiple-Choice Integration, Picture Included, Please Include Work

ValentinkaMS [17]

$\displaystyle\int_0^2\sqrt{4-x^2}\,\mathrm dx$

Recall that a circle of radius 2 centered at the origin has equation

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You have $r=2$ , so the definite integral is equal to $\dfrac{2^2\pi}4=\pi$ .

Another way to verify this is to actually compute the integral. Let $x=2\sin u$ , so that $\mathrm dx=2\cos u\,\mathrm du$ . Now

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Recall the half-angle identity for cosine:

$\cos^2u=\dfrac{1+\cos2u}2$

This means the integral is equivalent to

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3 years ago