2 years ago

CAN SOMEONE HELP ME I DONT UNERSTANND THIS PROBLEM

Mathematics

1 answer:

satela [25.4K]2 years ago

8 0

Answer:

Step 2 B

Step-by-step explanation:

You are supposed to solve the parentheses and exponents first.

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251.33 = 251

Step-by-step explanation:

V= πr²h = π·2²·20 ≈ 251.32741 = 251.33

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2 years ago

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The estimated difference between two numbers is 60. Find two numbers that when rounded to the nearest ten, have a difference of

Verdich [7]

Answer:

128 and 74.

Step-by-step explanation:

128 rounded to the nearest ten is 130, and 74 rounded to the nearest ten is 70. 130-70=60

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2 years ago

a girl is snorkeling 1 meter below sea level and then dives down another 0.5 meter. How far below sea level is the girl?

zalisa [80]

The answer is 1.5 meter depth.

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3 years ago

To measure the height of a tree, a surveyor walked a short distance from the tree and found the angle of elevation was 43.9°, th

padilas [110]

Answer:

The height of the tree is H = 77.06 m

Step-by-step explanation:

From Δ ABC

AB = height of the tree

$\tan 43.9 = \frac{AB}{BC}$

$\tan 43.9 = \frac{h}{x}$

h = 0.9623 x ------- (1)

From Δ ABD

$\tan 37.6 = \frac{h}{20+ x}$

h = 0.77 (x + 20) ----- (2)

Equating Equation 1 & 2 we get

0.9623 x = 0.77 (x + 20)

0.9623 x = 0.77 x + 15.4

x (0.1923) = 15.4

x = 80.08 m

Thus the height of the tree is given by

H = 0.9623 x

H = 0.9623 × 80.08

H = 77.06 m

Therefore the height of the tree is H = 77.06 m

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3 years ago

Helppp please I need help with this ASAP

galben [10]

Answer:

-7 < -5

Step-by-step explanation:

-5 is greater than -7

6 0

2 years ago