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3 years ago

What is the measure of

Mathematics

1 answer:

Colt1911 [192]3 years ago

6 0

I'm not sure what you want us to measure

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-5n-8(1+7n)=-8 Solve this equation

Arisa [49]

Answer:

it's 0

Step-by-step explanation:

5 0

3 years ago

Please help with 6th grade math

Lady_Fox [76]

Answer:

"1.03 yards per square foot"

Step-by-step explanation:

5.15 yd 1.03 yd

----------- becomes ------------- , or "1.03 yards per square foot." That's a unit

5 ft^2 ft^2 rate.

6 0

4 years ago

Find the least squares regression equation using the school year (in number of years after 2000) for the input variable and the

Ad libitum [116K]

Answer-

The least squares regression equation using the school year (in number of years after 2000) for the input variable and the average cost (in thousands of dollars) for the output variable is "y=0.937x+12.765" .

Solution-

The independent variable / input variable= x = Number of years after 2000 ( = year-2000)

The dependent variable / output variable = y = Average cost in thousands of dollars

(The table has been attached herewith.)

To find the regression equation for a group of (x,y) points,

We have to calculate the slope and y-intercept, then we can put those values in the equation y = mx + c ( Slope - Intercept formula)

We know that,

$Slope=m=\frac{N\sum xy -\sum x\sum y}{N\sum x^{2}- (\sum x)^{2}}$

Putting the values from the table,

$m=\frac{(8 \times 1020.206)-(52 \times 150.894)}{(8 \times 3810)-(52^2)}$

( ∵ Instead of 150,894 we have to put 150.894 as we have find the line for year and thousands of dollars )

$\Rightarrow m =\frac{8161.648-7846.488}{3040-2704} =\frac{315.16}{336}=0.937$

Now, for the y-intercept,

$c =\frac{\sum y -m(\sum x)}{N}$

Putting the values,

$c=\frac{150.894-(52 \times 0.937)}{8}=\frac{102.125}{8}=12.765$

Now, putting the values of c and m, in the Slope-Intercept formula,

$y=0.937x+12.765$

3 0

4 years ago

Which expression shows the result of applying the distributive property to 3(1/5x − 1/7)?

elena55 [62]

The expression that shows the result of applying the distributive property to 3(1/5x − 1/7) is:

3/5(x) - 3/7

I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions here in Brainly.

4 0

3 years ago

Read 2 more answers

the length of an arc of a circle is 269⁢πcentimeters and the measure of the corresponding central angle is 65∘. what is the leng

scZoUnD [109]

The length of the circle's radius = 744.92 cm

Given the length of arc of a circle, arc length = 269⁢π cm

Central angle of a circle is the angle made between the radius through the arc length at the center of the circle.

The corresponding central angle = 65°

To find the corresponding central angle in radians = 65° x π/180 = 13π/36 radians

We have, arc length of a circle = radius x central angle

Therefore, radius of the circle = arc length / central angle

= 269⁢π /(13π/36)

= 744.92 cm

Learn more about arc length of a circle at brainly.com/question/28108430

#SPJ4

6 0

2 years ago