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3 years ago

PLZZZZ HELPPPPPP THIS IS TIMEDDDD!!!! look at picture

Mathematics

2 answers:

g100num [7]3 years ago

7 0

Answer:

50.8 feet is correct

Step-by-step explanation:

test says so

Kazeer [188]3 years ago

5 0

Answer:

Height of the building = 50.8 ft

Step-by-step explanation:

A person and a building are casting the shadows at the same time of the day.

Triangles formed by the person and his shadow and the building and its shadow will be similar.

Therefore, corresponding sides of the similar triangles will be proportional.

$\frac{x}{28}=\frac{5.8}{3.2}$

x = $\frac{5.8\times 28}{3.2}$

x = 50.75

x ≈ 50.8 ft

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Tell whether the number is written correctly in scientific notation. 9.9 times 10*-4

Mnenie [13.5K]

$\text{ 9.9 x 10}^{-4}$

That is the correct number.

6 0

1 year ago

A bacteria colony increases in size at a rate of 4.0581e1.6t bacteria per hour. If the initial population is 36 bacteria, find t

Harrizon [31]

Answer:

1560

Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

$\frac{dP}{dt} =4.058e^{1.6t}$

$dP =4.058e^{1.6t}}dt\\Taking\: Integrals\\\int dP =4.058 \int e^{1.6t}dt\\P(t)=\frac{4.058}{1.6} (e^{1.6t} +K)\\P(t)=2.53625 (e^{1.6t} +K)$

Where k is a constant of Integration.

At t=0, P(t)=36

$36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19$

Therefore:

$P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560$

3 0

3 years ago

If PQR measures 75°, what is the measure of SQR?

Nuetrik [128]

Since there's no given exact measurement. I'll assume that the angle is by default 180 degrees.
If angle PQR measure 75 degrees.
then the measurement of angle SQR will be:
Angle PQR = 75
Angle SQR = 180 - 75 degrees
Angle SQR = 105 degrees

8 0

4 years ago

Read 2 more answers

Please help if you can

marishachu [46]

Answer:

maybe option 1st

Step-by-step explanation:

Hope this will help you dear.

3 0

3 years ago

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QUICK QUICK I NEED YOUR ANSWER FAST! 1 MINUTE ONLY! WITH AN EXPLANATION PLEASE! THEN YOU WILL BE THE BRAINLIEST!

alexandr1967 [171]

Answer:

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7 0

3 years ago

Read 2 more answers

PLZZZZ HELPPPPPP THIS IS TIMEDDDD!!!! *look at picture*

PLZZZZ HELPPPPPP THIS IS TIMEDDDD!!!! look at picture