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3 years ago

Please help what is the answer?

Mathematics

2 answers:

anastassius [24]3 years ago

5 0

Answer:

I’m pretty sure it is 148.5

Step-by-step explanation:

Triangle Volume=lwh divided by 2

USPshnik [31]3 years ago

5 0

See attachment for reply and answer.

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Rachel has $80 in a savings account.The interest rate is 10%per year and is not compounded. How much interest will she earn in 1

erma4kov [3.2K]

Answer:

I = $ 8.00

Equation:

I = Prt

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 10%/100 = 0.1 per year,

then, solving our equation

I = 80 × 0.1 × 1 = 8

I = $ 8.00

The simple interest accumulated

on a principal of $ 80.00

at a rate of 10% per year

for 1 years is $ 8.00.

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3 years ago

Can you help me with this question please

Zigmanuir [339]

382 5/10-191 87/100
|
3828-191 87/100

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3 years ago

Write this number in standard notation<br><br> ten thousand one hundred forty-two and nine tenths

9966 [12]

ten thousand one hundred forty-two and nine tenths

10,142.9

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3 years ago

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h

stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a) we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

$Score = 64 \times \frac{1}{5} = 12.8$

Hence, the expected score is 12.8

Part (b) Compute the variance and standard deviation of x.

Standard Deviation: $\sigma =\sqrt{npq}$

Now calculate the standard deviation as shown:

$\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}$

$\sigma =\sqrt{\frac{256}{25}}$

$\sigma =\frac{16}{5}=3.2$

Variance: $\sigma^2 =npq$

$\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}$

$\sigma^2 =\frac{256}{25}$

$\sigma^2 =10.24$

Hence, the standard deviation is 3.2 and variance is 10.24

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3 years ago

What is the slope of the line shown in the graph? A)-5 B)-1/5 C)5 D)1/5

zhuklara [117]

Answer:

Step-by-step explanation:

To find the slope, you use rise/run. In this case... the rise is 5 up and the run is 1 across. Therefore it is 5/1 which is the same as 5. Hope this helped!

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3 years ago

Read 2 more answers