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3 years ago

What is the slope of this line? y = -3/4 x + 7/8

Mathematics

1 answer:

Alexeev081 [22]3 years ago

7 0

I am sorry I can help more but
Google can graph lines if that helps

You just look up graph of a line with your numbers

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Ten cars were recently assembled at a factory. Of these

bogdanovich [222]

Answer:

1/12

Step-by-step explanation:

5 0

1 year ago

There are 15 cars in Michaels toy car collection.Two thirds of the car are red.How many red cars does Michael have?

o-na [289]

The answer is 10 u have to put 2/3 multiplied by 15/1

5 0

3 years ago

Read 2 more answers

Use the table to work out the values of a, b, c and d <br> PLEASE HELP!!!

Taya2010 [7]

Answer:

a = 10, b = 5, c = 14, d = 25

Step-by-step explanation:

Plug in -2 for x ....

y = 2(-2)^2 + -2 + 4

y = 2(4) + 2

y = 10

Plug in -1 for x ....

y = 2(-1)^2 + -1 + 4

y = 2(1) + 3

y = 5

Plug in 2 for x ....

y = 2(2)^2 + 2 + 4

y = 2(4) + 6

y = 8 + 6

y = 14

Plug in 3 for x ....

y = 2(3)^2 + 3 + 4

y = 2(9) + 7

y = 18 + 7

y = 25

8 0

2 years ago

The average high-density lipoprotein (HDL) cholesterol level of adult females is 53 milligrams per deciliter. You want to determ

emmasim [6.3K]

Answer:

$t=\frac{54.1-53}{\frac{1.78}{\sqrt{12}}}=2.14$

$df = n-1= 12-1=11$

$p_v = P(t_{11}>2.14) =0.0278$

Step-by-step explanation:

Data provided

$\bar X=54.1$ represent the sample mean in mg per deciliter of cholesterol level

$s=1.78$ represent the sample standard deviation

$n=12$ sample size

$\mu_o =53$ represent the value that we want to test

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

System of hypothesis

We need to conduct a hypothesis in order to check if the mean is higher than 53 mg per deciliter, the system of hypothesis would be:

Null hypothesis: $\mu \leq 53$

Alternative hypothesis: $\mu > 53$

The statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Calculate the statistic

Replacing into the formula we got:

$t=\frac{54.1-53}{\frac{1.78}{\sqrt{12}}}=2.14$

P-value

We need to find first the degrees of freedom:

$df = n-1= 12-1=11$

The p value for this case since we have a right tailed test is:

$p_v = P(t_{11}>2.14) =0.0278$

6 0

2 years ago

The population of a city has increased by 24% since it was last measured. If the current population is 40,300 what was the previ

Troyanec [42]

Answer:

26598

To find the answer, you have to subtract 24% from the current population. In this scenario, 40% subtracted from 40,300 is 26,598.

Hope this helped!

3 0

2 years ago