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VashaNatasha [74]
3 years ago
15

Question 2 (1 point)

Mathematics
1 answer:
Ber [7]3 years ago
4 0
<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Perpendicular ==> negative reciprocal slope

1 = (-1/3)(3) + c

1 = -1 + c

c = 2

It would be y = -1/3x + 2

Q3) slope = difference in y / difference in x

Eq 1 slope: 1/3

Eq 2 slope: -1/3

Eq 3 slope: 1/3

Eq 4 slope: 3/1

It would be The line passing through points (1,4) and (4.3)

A line is perpendicular if it has the negative reciprocal slope

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

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Please help me im doing a math test and i don’t wanna fail :(
cricket20 [7]

Answer:

The scale factor of dilation is 2.25

Step-by-step explanation:

I just measured the base of Figure A. The base is 4 square units. The base of Figure B is 9 units. 4 x 2.25 = 9.

400 answers yay

6 0
3 years ago
A researcher records the repair cost for 8 randomly selected washers. A sample mean of $60.46 and standard deviation of $18.36 a
Anuta_ua [19.1K]

Answer:

The critical value is T = 1.895.

The 90% confidence interval for the mean repair cost for the washers is between $48.159 and $72.761

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 8 - 1 = 6

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.895, which is the critical value.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.895\frac{18.36}{\sqrt{8}} = 12.301

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 60.46 - 12.301 = $48.159

The upper end of the interval is the sample mean added to M. So it is 60.46 + 12.301 = $72.761

The 90% confidence interval for the mean repair cost for the washers is between $48.159 and $72.761

8 0
3 years ago
the formula for calculating speed is DISTANCE divided by TIME equals SPEED (d/t=s). This is called an object's?
Daniel [21]

Answer:

speed

Step-by-step explanation:

it's literally stated in the question

8 0
2 years ago
Three years after paying $2800 in a startup company, you sell for $2200. The total percent return is what?​
masha68 [24]

Answer:

The total percentage return is 26.19

Step-by-step explanation:

Given as :

The amount paid for three years = $ 2800

So, Total amount paid for three years = $ 2800 × 3 = $ 8400

The return amount after three years = $ 2200

The time period = 3 years

Let the percentage return = x %

So, According to question

x % of $ 8400 = $ 2200

Or, x % = \frac{2200}{8400}

Or, \frac{x}{100} = \frac{11}{42}

∴  x = \frac{11}{42} × 100

I.e x = 26.19

Hence The total percentage return is 26.19 Answer

3 0
3 years ago
If a truck weighs 3 1/2 tons, how many pounds does it weigh?
Gennadij [26K]
1 ton is 2000 pounds your answer is 7000 pounds

Hope this helps
4 0
3 years ago
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