3 years ago

11. The ages (in years) of 11 children and the number of words in their vocabulary. Find the correlation coefficient r.

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

8 0

Start from the bottom now u there 110 languages and 3

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Solve for x. 2x2=72 −6 and 6 −36 and 36 −8 and 8 −18 and 18

andrey2020 [161]

Answer:

Solve for x.

2x2=72

−6 and 6

−8 and 8

−18 and 18

−36 and 36

your answer would be -6 and 6

Step-by-step explanation:

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3 years ago

Two town on a map are 2 1/4 inches apart.the actual distance between the towns is 45 miles. Which of the following could be the

Leokris [45]

Answer:

i have no clue if its for ALBERGA BUT Here

Step-by-step explanation:

the scale is 4.5in/24mi

since 1 mile = 63360 in, that means the scale is

4.5 : 24*63360 = 4.5 : 1520640 = 1:337920

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3 years ago

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Help on problem 7!<br> i think i have to do a2/a1 to be correct or something. please help!

blondinia [14]

Answer:

It’s a2/a1 so 81/243 so the common ratio is 1/3

Step-by-step explanation:

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3 years ago

Number of Goldfish Cost

Volgvan

Answer: The answer is AAA I did the work and got AAA.

Step-by-step explanation: Hope I help out a lot if not sorry.

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Find the coordinates of the vertex for the parabola defined by the given quadratic function f(x) = (x + 2)^2 + 2 a) (0,2) b) (2.

Step2247 [10]

Answer:

(-2,2)

Step-by-step explanation:

Let's find the answer.

Because a tangent line for a parabola function is equal to 0 only at its vertex then:

$f(x)=(x+2)^{2}+2$

$f'(x)=2*(x+2)$

$f'(x)=2x+4$ so then:

$f'(x)=0$ when

$0=2x+4$

$-2=x$

For x=-2 f(x) is:

$f(x)=(x+2)^{2}+2$

$f(1)=(-2+2)^{2}+2$

$f(x)=2$

In conclusion, the vertex of the given parabola is (-2,2), so the answer is C. Although in your answer is reported as (-2.2) but I think was a typing mistake.

7 0

3 years ago