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4 years ago

10

To The Nearest 10th, Find the volume of a sphere with a diameter of 10 cm. Use 3.14 for pie

2 answers:

fenix001 [56]4 years ago

4 0

523.6 The answer would be

elena55 [62]4 years ago

3 0

Answer:523.6

Step-by-step explanation: V = 4/3 r^3

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What time did Katie start practicing if ate snack for 15min, watched tv for 30 min and practiced for 45 minutes

VMariaS [17]

If she ended at 6 pm.

practiced for 45 minutes. 6 pm work back 45 minutes, she started practicing at 5:15pm.

watched tv for 30 minutes. 5:15 pm work back 30 minutes, she started watching tv at 4:45 pm

ate snack for 15 minutes. 4:45 pm work back 15 minutes, she started eating her snacks at 4:30 pm.

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3 years ago

Select the correct answer.

alexira [117]

Answer:

$\huge\boxed{A.\ -\dfrac{9}{4}+2i}$

Step-by-step explanation:

The standard form of a complex number:

$z=a+bi\\\\a,\ b\in\mathbb{R}$

$3i+\left(\dfrac{3}{4}+2i\right)-(3+3i)=3i+\dfrac{3}{4}+2i-3-3i\\\\=\left(\dfrac{3}{4}-3\right)+(3+2-3)i=-2\dfrac{1}{4}+2i=-\dfrac{9}{4}+2i$

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3 years ago

Find the missing side length of the right triangle. show work.

motikmotik

Answer:

6.32

Step-by-step explanation:

To find the side length on a right angled triangle we follow The Pythagorean Theorem:

${a}^{2} + {b}^{2} = {c}^{2}$

c being the hypothesis (longest side: the hypotenuse is always opposite the right angle)

so..

${6}^{2} + {2}^{2} = {x}^{2} \\ 36 + 4 = {x}^{2} \\ 40 = {x}^{2} \\ \sqrt{40} = \sqrt{ {x}^{2} } \\$

$6.32 = x$

8 0

2 years ago

Read 2 more answers

Which is equal to 7√3 ?<br><br><br> 7^3<br><br><br> 21<br><br><br> (13)^7<br><br><br> 7 1/3

exis [7]

Step-by-step explanation:

D is the correct answer of this question ....

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3 years ago

An eyewitness observes a hit-and-run accident in New York City, where 95% of the cabs are yellow and 5% are blue. A police exper

Liula [17]

Answer:

0.1739 = 17.39% probability that the cab actually was blue

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Witness asserts the cab is blue.

Event B: The cab is blue.

Probability of a witness assessing that a cab is blue.

20% of 95%(yellow cab, witness assesses it is blue).

80% of 5%(blue cab, witness assesses it is blue). So

$P(A) = 0.2*0.95 + 0.8*0.05 = 0.23$

Probability of being blue and the witness assessing that it is blue.

80% of 5%. So

$P(A \cap B) = 0.8*0.05 = 0.04$

What is the probability that the cab actually was blue?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.04}{0.23} = 0.1739$

0.1739 = 17.39% probability that the cab actually was blue

7 0

3 years ago