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vlada-n [284]
2 years ago
14

What is the circumference of the circle when the r is 19 m (use 3.14 for pi)

Mathematics
1 answer:
svetlana [45]2 years ago
4 0

Answer:

119.32 m

Step-by-step explanation:

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Giving 30 points pls answer correctly
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B. 20.41

Step-by-step explanation:

I hope this helps! pls brainliest:D

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the 3rd one from top

Step-by-step explanation:

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For f(x)= x+5 and g(x)=4x+2 <br> find (fog)(x) And (gof)(x)
Svetllana [295]

Composing functions means that the input of the outer functions is the output of the inner function.

In fact, you can rewrite the circle notation as

(f\circ g)(x)=f(g(x)),\quad (g\circ f)(x)=g(f(x))

So, we can substitute g(x) with its expression:

(f\circ g)(x)=f(g(x))=f(4x+2)

And since f(x)=x+5, we simply have to add 5 to its input:

f(4x+2)=(4x+2)+5=4x+7

Similarly, we have, substituting f with its expression,

(g\circ f)(x)=g(f(x))=g(x+5)

And since g(x)=4x+2, we have to multiply the input by 4 and add 2:

g(x+5)=4(x+5)+2=4x+20+2=4x+22

7 0
3 years ago
Step by step how to solve -2.3x=.46
Sergio039 [100]
Step one: divide both sides by -2.3 to get X by itself: X=-.2. :)
7 0
2 years ago
Test the claim that the proportion of men who own cats is smaller than 70% at the 0.05 significance level. The null and alternat
Ghella [55]

Answer:

the null hypothesis would be: p = 70%/0.7

The alternative hypothesis would be: p < 0.7

Step-by-step explanation:

The null hypothesis is most of the time always the default statement while the alternative hypothesis is tested against the null and is its opposite.

In this case study the null hypothesis would be: the proportion of men who own cats is 70%: p = 0.7

The alternative hypothesis would be: the proportion of men who own cats is smaller than 70% : p < 0.7

3 0
3 years ago
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