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3 years ago

Will give brainliest if correct.

Mathematics

2 answers:

Sonja [21]3 years ago

8 0

The answer is AB should be 2 feet not 3. :) Hopes this helps, have a good day.

snow_lady [41]3 years ago

5 0

It's b hope this helps

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You want to rent an unfurnished one-bedroom apartment in Boston next year. The mean monthly rent for a simple random sample of 3

Tpy6a [65]

Answer: 99% confidence interval would be $(1346.37,1553.63)$

Step-by-step explanation:

Since we have given that

Sample size = 30

Sample mean = $1450

Standard deviation = $220

We need to find the 99% confidence interval.

So, z = 2.58

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1450\pm 2.58\times \dfrac{220}{\sqrt{30}}\\\\=1450\pm 103.63\\\\=(1450-103.63,1450+103.63)\\\\=(1346.37,1553.63)$

Hence, 99% confidence interval would be $(1346.37,1553.63)$

4 0

4 years ago

im rlly confused (its yes and no answers)Decide if each pair of expressions is equivalent.6(-4t + 5) and -2(15 - 12t)1/5(20t - 1

kirill [66]

Given data:

The expression of the first option is,

$\begin{gathered} \text{6(-4t+5})and\text{-2(15}-12t) \\ =-6(5-4t) \end{gathered}$

Thus, the above expression are not equivalent.

The expression in the second option is,

$\begin{gathered} \frac{1}{5}(20t-15)\text{ and }4t-3 \\ 4t-3\text{ and 4t-3} \end{gathered}$

Thus, yes they are equivalent.

The expression in the third option is,

$\begin{gathered} 1.5\text{ }-2\text{t and 0}.25(8-6t) \\ 1.5\text{ }-2\text{t and 2-1.5t} \end{gathered}$

Thus, the above expression are not equivalent.

The expression in fourth option is,

$\begin{gathered} -3(t-7+5t+8)\text{ and }-18t-3 \\ -3(6t+1)\text{ and -18t-3} \\ -18t-3\text{ and -18t-3} \end{gathered}$

Thus, yes the above expression is equivalent.

3 0

2 years ago

Can anyone do this question with work please

ioda

I just know you can eliminate a which 18 degrees and c which is 61 degrees because m

7 0

3 years ago

The graph of 6x + 4y = -2 is shown on the grid. Which ordered pair is in the solution set of 6x + 4y = -2? es -) A) (2,3) B) (3,

otez555 [7]

Answer:

Step-by-step explanation:

Using slope-intercept form, the slope is 3/2.

3 0

3 years ago

What is the equation of the trend line?

Soloha48 [4]

Answer:

$N=-2M+110$

Step-by-step explanation:

we know that

The equation of the line in slope-intercept form is equal to

$N=mM+b$

where

m is the slope of the line

b is the N-intercept

In this problem we have

$b=110$

Find the slope

Let

$A(20,70),B(0.110)$

$m=(110-70)/(0-20)=-2$

substitute the values

$N=-2M+110$

8 0

4 years ago

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