3 years ago

I need help no one helps me never

Mathematics

1 answer:

slavikrds [6]3 years ago

5 0

I believe the answer is D

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Juan texts 20 messages in 5 minutes. At this rate how many text messages can he send in 30 minutes

pochemuha

<h2>Answer:</h2>

The answer 120 MESSAGES

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3 years ago

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Will give brainliest to whoever answers!!!

jarptica [38.1K]

(A)

Step-by-step explanation:

All other choices will result in a negative number inside the radical sign.

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3 years ago

ZB=<br> I<br> Round your answer to the nearest hundredth.<br> A<br> 5<br> ?<br> B

zalisa [80]

Answer:

∠B = 36.87

Step-by-step explanation:

Since you are trying to find the angle measurement, you must use the inverse of cosine: $cos^{-1}$ (you're using cosine because you have the opposite side and adjacent side):

$cos^-1(4/5)$

≈36.87

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3 years ago

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Harman [31]

Answer:

incorrect length is 12.5

actual length is 11

12.5-11

1.5

1.5/12.5 ×100

20%

Step-by-step explanation:

hope it helps

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3 years ago

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Blababa [14]

Answer:

$P(A\textrm{ and }B)=\frac{3}{14}$

Step-by-step explanation:

Given:

$P(A)=\frac{4}{7}$

$P(B|A)=\frac{3}{8}$

We know that, conditional probability of B given that A has occurred is given as:

$P(B|A)=\frac{P(A\cap B}{P(A)}$ . Expressing this in terms of $P(A\cap B)$ , we get

$P(A\cap B)=P(B|A)\times P(A)$

Plug in the known values and solve for $P(A\cap B)$ . This gives,

$P(A\cap B)=P(B|A)\times P(A)\\P(A\cap B)=\frac{3}{8}\times \frac{4}{7}\\P(A\cap B)=\frac{12}{56}=\frac{3}{14}$

Therefore, the probability of events A and B occurring is $\frac{3}{14}$ .

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3 years ago

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