HELP PLEASE WILL GIVE BRAINLST I WILL DO ANYTHINGGGGGGGGGGGGG

Answer:

73.74 degrees

Step-by-step explanation:

Answer: The value of the intercept represents the predicted highway mileage for gas city mileage of 0 mpg, and such a prediction would be invalid, since 0 is outside of the range of data.

Step-by-step explanation:

Answer:

The meaning of slope is like the middle number.

The solving equation for the slope is

y2-y1 and x2-x1

Step-by-step explanation:

Answer:

Part a:

The calculate value of Z = 2.946 lies in the critical region so the null hypothesis is rejected and alternate hypothesis is accepted that population mean is greater than 50.

Part b:

The calculate value of Z = 1.17851 does not lie in the critical region so the null hypothesis is accepted that population mean is not greater than 50.

Part c:

The calculate value of Z = 2.1213  lies in the critical region so the null hypothesis is rejected and concluded that population mean is greater than 50.

Step-by-step explanation:

Data as given

H 0: μ ≤ 50 against the claim H a:  μ> 50  one tailed test

Z (0.05)= ± 1.645

Sample size n= 50

Using the central limit theorem

Population Standard Deviation= σ=s=6

X= 52.5 , 51 and 51.8

Part a:

Z= x-μ/ s/ √n

Z= 52.5- 50 / 6/ √50

Z= 2.5/0.84853

z= 2.946

The calculate value of Z = 2.946 lies in the critical region so the null hypothesis is rejected and alternate hypothesis is accepted that population mean is greater than 50.

Part b:

Z= x-μ/ s/ √n

Z= 51- 50 / 6/ √50

Z= 1/0.84853

z= 1.17851

The calculate value of Z = 1.17851 does not lie in the critical region so the null hypothesis is accepted that population mean is not greater than 50.

Part c:

Z= x-μ/ s/ √n

Z= 51.8- 50 / 6/ √50

Z= 1.8/0.84853

z= 2.1213

The calculate value of Z = 2.1213  lies in the critical region so the null hypothesis is rejected and concluded that population mean is greater than 50.

Answer:

jnjnj

Step-by-step explanation:

yes

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njn

jnjnjnjn

This question is incomplete, the complete question is;

An owner of a home in the Midwest installed solar panels to reduce heating costs. After installing the solar panels, he measured the amount of natural gas used  y (in cubic feet) to heat the home and outside temperature x (in degree-days, where a day's degree-days are the number of degrees its average temperature falls below 65oF) over a 23-month period.

He then computed the least-squares regression line for predicting y from x and found it to be:   y^=80+16x.  

How much, on average, does gas used increase for each additional degree-day?

Answer : ______ cubic feet.

(Give your answer as a whole number.)

Answer:

Amount of natural gas used increased by 19 cubic feet.

Step-by-step explanation:

Given the data in the question;

Let the dependent variable y be the amount of natural gas used ( ft³ )

Also let an independent variable x be be the degree days temperature ( in °F)

So the least squares regression equation is;

[tex]y^{bar}[/tex] = 80 + 16x

or

amount_of_natural_gas_used = 80 + 16(degree_days_temperature

Th slope or the standardized regression coefficient of the given regression equation is;

b₁ = 16

the slope coefficient b₁ = 16 is tells us that for each additional one-degree days temperature, an amount of natural gas used increased by 19 cubic feet.

Therefore, amount of natural gas used increased by 19 cubic feet.

Answer:

[tex]\frac{193}{15}[/tex]

Step-by-step explanation:

Here

Answer:

-6

Step-by-step explanation:

Answer: -6

Step-by-step explanation:

Answer:

C Is The Correct Answer

Answer: you should plot it a -3.2

Step-by-step explanation:

Answer:

f(1) = 2

Step-by-step explanation:

Since f(x) = x^4 + 4 x^3 + 5 x^2 - 4 x - 4

When we evaluate this for x = k = 1, we replace x with the value 1 as shown below:

f(1) = 1^4 + 4 * 1^3 + 5 * 1^2 - 4 * 1 - 4 = 1  + 4 + 5 - 4 - 4 = 10 - 8 = 2

Answer:

It's 99%

Step-by-step explanation:

It just is.

A confidence interval for the true mean for all WHS seniors is 512.00 ± 47.8." The confidence level for this interval is 99%. The correct option is D.

The percentage is defined as "out of 100." Similar to fractions and decimals, percentages are used in mathematics to represent subsets of a whole. When expressing a sum as a percentage, 100 equal components are regarded to make up the whole.

A percentage is a figure or ratio stated as a fraction of 100 in mathematics. Divide the amount by the total value to get the percentage, then multiply the resulting number by 100.

Since one percent (symbolized as 1%) is equal to one-hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified.

Therefore, the correct option is D, 99%.

To learn more about percentages, refer to the link:

https://brainly.com/question/28269290

#SPJ5

The question is incomplete. Your most probably complete question is given below:

90%

92%

95%

99%

over 99.9%

Answer:

They purchased 20 ounces of candy total

Step-by-step explanation:

just add 12 + 8

=20 ounces

Answer: i think its 30°

Step-by-step explanation:

Answer:48 ft to the second power

Step-by-step explanation:

I just got it right on iready

The area of the outdoor carpet that needed for the hole should be considered as the  48 ft².

Since

we know that

Area of the rectangle = Length (breadth)

here,

L = 12 ft

b =  5 ft

So,

area = 12 × 5  

= 60 ft²

Now

The cut off triangle area

area = 1/2 × base × height

= 1/2 × 4 × 3

= 12/2

= 6 ft²

Now

The cut off rectangle area should be

area = Lb

= 3 × 2

= 6 ft²

Now finally

The area of the outdoor carpet should be

= 60 - 6 - 6

= 48 ft²

learn more about an area here: https://brainly.com/question/17971267

Answer:

D. 283.2 units²

Step-by-step explanation:

Surface area of the triangular prism = 2×Base Area + Perimeter of triangular base×height of prism

Base Area = ½*bh

b = 6 km

h = 5.2 km

Base area = ½*6*5.2 = 15.6 km²

Perimeter of triangular base = 6+6+6 = 18 km

Height of prism = 14 km

Plug in the values into the equation

Surface area of triangular prism = 2×15.6 + 18×14

= 31.2 + 252

= 283.2 km²

Answer:

it's the second one a rhombus is a diamond

16-4>10

Difference means subtracting

Answer:

c is the answer

Step-by-step explanation:

is the not maybe

Answer:

5 hours cuz 75 divided by 15 is 5 or 15 x 5 is 75

Answer:

x= 273

Step-by-step explanation:

Answer:

273

Step-by-step explanation:

3549/13=23

(Hope this helps u and u get it correct!)

-AestheticSnowy

Answer:

300 + 60 + 000

Step-by-step explanation:

Just break these up easy answer. Your welcome :)

Answer:

4 ;)

Step-by-step explanation:

Answer: 4

Step-by-step explanation:

Answer:

Twenty four (24)

Step-by-step explanation:

8 ÷ one third

one third = 1/3

8 ÷ 1/3

= 8 × 3/1

= 24/1

= 24

Answer: (2^3) +  3^3

2^3 +  3^3

35

Step-by-step explanation:

you most likely just have to add 8 and 27 together im guessing

Answer:

1.50 + 22

Step-by-step explanation:

23.5

Answer:

12 nickels. 9 dimes

Step-by-step explanation:

12 nickels is equal to 60 cents

9 dimes equals 90 cents

90 plus 60 equals 150 which is $1.50