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3 years ago

Pleeeeease someone help!!! I will give brainliest!!! 31 POINTS IF U ANSWER!!

Mathematics

2 answers:

natta225 [31]3 years ago

4 0

Answer:

Its going to be a line going straight across the 4 along the y axis .

Step-by-step explanation:

See graph attached

stepladder [879]3 years ago

3 0

Answer:

put a dot on the y axis where the number 4 is

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Denis, Vera, and Yash are rock climbers. Yash is connected to Vera by a

grin007 [14]

Answer:

$33.14\°$

Step-by-step explanation:

Let

Y ----> field of vision that Yash's camera would need

we know that

Applying the law of sines

$\frac{sin(Y)}{25}=\frac{sin(41\°)}{30}$

Solve for sin(Y)

$sin(Y)=\frac{sin(41\°)}{30}(25)$

$Y=sin^{-1}[\frac{sin(41\°)}{30}(25)]$

$Y=33.14\°$

8 0

3 years ago

Read 2 more answers

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

What equals 7 in multiplication

Zanzabum

Will there's
5.5 x 2 = 11

hope that helped

8 0

4 years ago

Solve for the answer -1/2>3/4

ikadub [295]

Answer:

no solution ...................

7 0

3 years ago

Please help i dont understand

Elena L [17]

Answer:

I think number one is 19

Step-by-step explanation:

8 0

3 years ago