All categories

3 years ago

(PLEASE HELP ME) picture is shown

Mathematics

1 answer:

babunello [35]3 years ago

7 0

Answer:

its 70 degrees

Step-by-step explanation:

You might be interested in

What is 1/2 • 1 • 2 please help

BabaBlast [244]

Answer:

Step-by-step explanation:

1/2x1x2

8 0

2 years ago

F(x)=ex;g(x)=-7/8ex+3+3

Goshia [24]

Answer:

dftybuyj

Step-by-step explanation:

5 0

3 years ago

Compute the correlation coefficient for the data set. (2,19), (3,22), (4,26), (5,20), (6,35), (7,30), (9,40), (10,42), (11,35)

lakkis [162]

Answer:

The correlation coefficient of the data is 0.8679.

Step-by-step explanation:

The formula to compute the correlation coefficient is:

$r(X,Y)=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{n\cdot\sum X^{2}-(\sum X)^{2}}\times \sqrt{n\cdot\sum Y^{2}-(\sum Y)^{2}}}$

From the data provided compute the values of ∑ XY, ∑ X, ∑ Y, ∑ X² and ∑ Y².

The values are computed in the table below.

Compute the correlation coefficient as follows:

$r(X,Y)=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{n\cdot\sum X^{2}-(\sum X)^{2}}\times \sqrt{n\cdot\sum Y^{2}-(\sum Y)^{2}}}$

$=\frac{(9\times 1893)-(57\times 269)}{\sqrt{(9\times 441)-(57)^{2}}\times \sqrt{(9\times 8635)-(269)^{2}}}\\\\=\frac{1704}{\sqrt{720\times 5354}}\\\\=0.86788895\\\\\approx 0.8679$

Thus, the correlation coefficient of the data is 0.8679.

4 0

3 years ago

Find the midpoint between A(10,1) and B(5,2)

Alenkasestr [34]

Answer:

midpoint: (7.5, 1.5)

Step-by-step explanation:

midpoint formula: ( (x1 + x2)/2 , (y1 + y2)/2 )

x1= 10

x2= 5

y1=1

y2=2

( 10 + 5 )/2 = 7.5

( 1 + 2 )/2 = 1.5

midpoint coordinates => ( 7.5 , 1.5 )

3 0

3 years ago

If you are given the surface area of a square pyramid and the area of the base, how could you calculate the area of each side of

stiv31 [10]

Answer:

you need to divide the surface are and the base and you should get the number of each lateral face

Step-by-step explanation:

but you do need to tell me the numbers so do that in the comments

8 0

3 years ago