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2 years ago

60 144 Here’s my question

Mathematics

1 answer:

fiasKO [112]2 years ago

7 0

Answer:

Step-by-step explanation:

The answer is good

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Yuri purchased 8 trees to have planted at his house. The store charged a delivery fee of $5 per tree.

satela [25.4K]

16 dollars each because you do 8x5 which equals 40 and do 168-40 which equals 128 / 8 equals 16

8 0

3 years ago

Read 2 more answers

Rearrange x = 7y - 5 to make y the subject.

nalin [4]

By rearranging x = 7y - 5 to make y the subject, we get

x + 5 = 7y ( By transposition method )

or, $\huge \purple {\tt {\frac{x + 5}{7} = y}}$

<h2>Answer:</h2>

$\huge \pink {\tt {y = \frac{x + 5}{7}}}$

3 0

3 years ago

Find the variance of this probability distribution. Round to two decimal places.

attashe74 [19]

Answer:

Variance = 4.68

Step-by-step explanation:

The formula for the variance is:

$\sigma^{2} =\frac{\Sigma(X- \mu)^{2}}{N} \\or \\ \sigma^{2} =\frac{\Sigma(X)^{2}}{N} -\mu^{2} \\$

Where:

$X: Values \\\mu: Mean \\N: Number\ of\ values$

The mean can be calculated as each value multiplied by its probability

$\mu = 0*0.4 + 1*0.3 + 2*0.1+3*0.15+ 4*0.05=1.15$

$\frac{\Sigma (X)^{2}}{N} =\frac{(0^{2}+1^{2}+2^{2}+3^{2}+4^{2})}{5} =6$

Replacing the mean and the summatory of X:

$\sigma^{2} = \frac{\Sigma(X)^{2}}{N} -\mu^{2} \\= 6 - 1.15^{2}\\= 4.6775$

4 0

3 years ago

Please help need this for today

Cloud [144]

All will apply except for (A, C, and E) because those lengths are less than 4/6. So (B, D and F) are the correct answers.

6 0

2 years ago

I need to know the answer to this question above.

marusya05 [52]

Answer:

The coordinates of the end point B are (14 , 8)

Step-by-step explanation:

let B(x , y)

M midpoint of A and B

⇔ 8=(x+2)/2 and 11=(y+14)/2

⇔ 16=x+2 and 22=y+14

⇔ x=14 and y=8

3 0

2 years ago