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3 years ago

Can someone answer these two questions for me

Mathematics

2 answers:

Nata [24]3 years ago

5 0

Answer:

Step-by-step explanation:

use multiplication

solong [7]3 years ago

5 0

Answer:

#4 = 9m

#3 = 50.135 m

Step-by-step explanation:

for number 4 all you have to do is find the area of the whole figure and then subtract the area of that square inside it so 5 x 2 = 10 10 - 1 x 1 = 9

#3 first find the square to be 36 m then find the half circle

diameter = 6 so radius = 3

a = pie x 3^2 so a = 28.27 but its a half circle so 28.27/2 = 14.135 then add 36 to it so 50.135

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Answer:

Step-by-step explanation:

【Look at the image】

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3 years ago

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The angle of elevation to the top of a water tower from point A on the ground is 19.9°. From point B, 50.0 feet closer to the to

zepelin [54]

Answer:

Answer in terms of a trigonometric function :

$h = \frac{20tan(19.9)}{0.4-tan(19.9)}$

Answer in figures

$h = 190.5 feet$

Step-by-step explanation:

Consider the sketch attached below to better understand the problem.

Let x be the distance between point B and the base of the water tower.

$tan (19.9)=\frac{h}{50+x} ---------------equation 1\\$

$tan (21.8)=\frac{h}{x}----------------equation 2$

From equation 2,

$x =\frac{h}{tan21.8}=\frac{h}{0.4}$

substituting the value of x into equation 1, we get

$tan (19.9)=\frac{h}{50+(\frac{h}{0.4} )}$

$tan 19.9=h\times \frac{0.4}{20+h}$

cross multiplying,

$20\times tan(19.9) +htan(19.9)=0.4h$

$20tan(19.9)= h(0.4-tan(19.9))$

$h= \frac{20tan (19.9)}{0.4-tan (19.9)}$

The height of the tower is $h= \frac{20tan (19.9)}{0.4-tan (19.9)}$ in terms of the trig function "Tan"

The equation can simply be evaluated to get the answer in figures since the angles are given in the question

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4 years ago

There are 182 seats in a theater. The seats are evenly divided into 13 rows. How many seats are in each rows?

erica [24]

182÷13

Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

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Mice21 [21]

Answer:

t→+[infinity] [ P ( t ) ] = $62.957 billion

t→+[infinity] [ f ( t ) ] = $143.214 billion

Step-by-step explanation:

Given:

- Total spending on police, courts, and prisons in the period 1982–1999 could be approximated, respectively,

P(t) = 1.743*t + 29.84 billion dollars (2 ≤ t ≤ 19)

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lim t→19 [ P ( 19 ) ] = 1.743*19 + 29.84 = $62.957 billion

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4 years ago