Examine this multiplication problem. 3 2 5 × 1 2 Which are equal to the product? Check all that apply.

The correlation coefficient of the health research institute data measures the relationship between the age and the years of the smokers

The correlation coefficient is 0.53

The correlation coefficient (r) is calculated as:

[tex]r = \frac{n(\sum xy) - \sum x \sum y}{\sqrt{[n \sum x^2 - (\sum x)^2][n\sum y^2 - (\sum y)^2}}[/tex]

Using the given parameters, we have:

[tex]r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1257^2][20 * 836 - 116^2}}[/tex]

Evaluate the exponents

[tex]r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1580049][20 * 836 - 13456}}[/tex]

Evaluate the products

[tex]r = \frac{164980 - 145812}{\sqrt{[1976460 - 1580049][16720 - 13456}}[/tex]

Evaluate the differences

[tex]r = \frac{19168}{\sqrt{[396411*3264}}[/tex]

Evaluate the product

[tex]r = \frac{19168}{\sqrt{1293885504}}[/tex]

Evaluate the root

[tex]r = \frac{19168}{35970.6}[/tex]

Evaluate the quotient

[tex]r = 0.53[/tex]

Hence, the correlation coefficient is 0.53

Read more about correlation coefficient at:

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Answer:

The answer is 20:15, or 4:3 simplified

Answer:

A, C, E

Step-by-step explanation:

Answer:

Step-by-step explanation:

Go

Answer:

B

Step-by-step explanation:

Consider this:
Cheese Dip --> Burrito --> Chicken

Cheese Dip --> Burrito --> Beef

Assume Cheese Dip is your starting point and Chicken / Beef are your ending points. We already have two combos here.

Now looking at the diagram, we should see eight ending points in total.

Therefore, there would be eight combinations for Lelia to choose.

Answer:

The answer is the first one this is because you have to distribute the 9 to all the values in the brackets

Step-by-step explanation:

Answer:

[tex]\frac{c}{2\pi } =r[/tex]

Step-by-step explanation:

c = 2πr

→ Divide both sides by 2π

[tex]\frac{c}{2\pi } =r[/tex]

Answer:

In order from left to right: [tex]-\frac{4}{3}, -\frac{4}{5}, -\frac{2}{3}, \frac{7}{10}, \frac{7}{8}[/tex]

Step-by-step explanation:

[tex]-\frac{4}{3}[/tex] is the only improper fraction because the numerator is greater than the denominator and since it is negative, that means that it is the least.

[tex]-\frac{4}{5}[/tex] as the decimal -0.8 is closer to -1 than [tex]-\frac{2}{3}[/tex] as the decimal -0.666...

[tex]\frac{7}{8}[/tex] as the decimal 0.875 is closer to one than [tex]\frac{7}{10}[/tex] as the decimal 0.7...

Answer:

2B / (mx) = y

Step-by-step explanation:

B = 1/2 mxy

Multiply each side by 2

2B = 2* 1/2 mxy

2B = mxy

Divide each side by mx

2B / (mx) = mxy / (mx)

2B / (mx) = y

Answer:

[tex] \huge y = \frac{2B}{mx} \\ [/tex]

Step-by-step explanation:

[tex]B = \frac{1}{2} mxy \\ [/tex]

Multiply through by 2 to eliminate the fraction

That's

[tex]mxy = 2B[/tex]

Divide both sides by mx to make y stand alone

We have

[tex] \frac{mxy}{mx} = \frac{2B}{mx} \\ [/tex]

We have the final answer as

[tex]y = \frac{2B}{mx} \\ [/tex]

Hope this helps you

Answer:

1

2

–

2

5

=  

1 × 5

2 × 5

–

2 × 2

5 × 2

=  

5

10

–

4

10

=  

5 – 4

10

=  

1

10

Step-by-step explanation:

Answer:

Step-by-step explanation:

3+4=7

so it is 3/7 part of PQ

Answer:

£79

Step-by-step explanation:
- Multiply 1.25
- 1.25 x 63.20
Tip:
We multiply from 1.25 because to get from 3 euros. 4 pounds is 1.25

Answer:

it has no solution.......

answer will be 3x+4 = 3x+4 i.e, 0=0 ,so

but if 3x+4 = 0 , x= -4/3 . Its a linear equation and has only one solution

Answer:

Infinitely many solutions.

Step-by-step explanation:

3x + 4 = 3x + 4

3x = 3x

Divide 3 from both sides.

x = x

Therefore, this equation has infinitely many solutions.

----------------------------------------------------------------------------------------------------------

Example ~

x = 1

(3 × 1) + 4 = (3 × 1) + 4

3 + 4 = 3 + 4

7 = 7

Answer:

6.25 & 8.25

Step-by-step explanation:

im probably wrong lol-

29/2 = x+x+2

14.5=2x+2

12.5=2x

therefore x = 6.25 but to fin the other x add 2

so then the longer piece would be 8.25

[tex]\red\leadsto[/tex]Let one piece of glass tubing be of length x in ,

[tex]\green\leadsto[/tex]then other piece will be of length(x+2) in since it is 2 in longer than other piece

[tex]\\[/tex]

>>>Total length of both the piece

= 29 in _ _ _ (1)

>>>Total length of both pieces = length of shorter piece + length of longer piece

[tex]\:\implies[/tex] Total length of both pieces = x+(x+2) _ _ _(2)

[tex]\\[/tex]

Equating (1) and (2)

[tex]\:\implies[/tex]x+(x+2) = 29

[tex]\:\implies[/tex]x+x+2= 29

[tex]\:\implies[/tex]2x+2 = 29

[tex]\:\implies[/tex]2x= 29-2

[tex]\:\implies[/tex]x= 27/2

[tex]\\[/tex]

>>Length of smaller piece =

[tex]\:\implies[/tex]x = 27/2 in

>>> Length of larger piece =

[tex]\:\implies[/tex](x+2) = 27/2 + 2 = 31/2 in

[tex]\\[/tex]

[tex]\longrightarrow[/tex]Thus, The pieces are 27/2 in and 31/2 in long

Step-by-step explanation:

there's no such that in mathematics

Vectors are elements of the vector space, and they can be illustrated by diagrams.

The vector expression is given as:

2u - 1/3 v

Split the vector expressions, as follows:

[tex]y_1 = 2u[/tex]

[tex]y_2 = -\frac13v[/tex]

See attachment for the graphs of y1 and y2.

Next, we have:

[tex]y = 2u - \frac13v[/tex]

So, we have:

[tex]y = y_1 + y_2[/tex]

The above expression means that, we add the vectors y1 and y2 to get vector y

See attachment for the graph of 2u - 1/3 v

Read more about vectors at:

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Answer:

223.8

Step-by-step explanation:

I failed the test to get the answer

Answer:

the answer is 223.8

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Reflect over y axis the rotate 180 degrees.

Answer:

its b, because they are using that formula to get the answer! And I also need brainliest really badly!

Answer:

I don't know

Step-by-step explanation:

it depends on your definition and question

Answer:

16ft

Step-by-step explanation:

It would be 16 feet because if you multiply 8 by 2 feet, you get 16ft.

Answer:

Complementary angles

Adjacent angles

Step-by-step explanation:

Complementary Angles:  Two angles whose measures sum to 90°

Vertical Angles: a pair of non-adjacent angles formed by the intersection of two straight lines. Vertical angles are congruent

Adjacent Angles: Two angles that share a common side and a common vertex, but don't overlap.

Supplementary Angles:  Two angles whose measures sum to 180°

Therefore, angles 1 and 2 are:

under the same denominator r(r-4)

[6(r-4)] / (r(r-4)) + (4r) / (r(r-4)) = 1

(6r - 24 + 4r) / (r(r-4)) = 1

10r - 24 = r (r-4)

10r - 24 = r² - 4r

r² - 14r + 24 = 0

Δ = (-14)² - 4*1*24 = 100 = 10²

x' = (14 + 10) / 2 = 12

x" = (14 - 10) / 2 = 2

i'm french - so I answered as we learn in France :)

Answer:

$60.00

Step-by-step explanation:

Answer:

49

Step-by-step explanation:

because it is the middle

Answer:

Step-by-step explanation:

g ( f ( x ) ) = ( x+ 3) ^2

Answer:

x=6

Step-by-step explanation:

Your answer would be x = 6.

The only step is to divide by 2/3 on both sides of the equation.

Answer:

174

Step-by-step explanation:

Answer:

Step-by-step explanation:

Before the change she made $230 a week because 11x16=176 + 18x3= 54

but after the change she would make $321 a week because 18x16= 233 + 11x3= 33