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Simora [160]
3 years ago
15

4. The scatterplot shows the height and age of 12 people.

Mathematics
1 answer:
Stels [109]3 years ago
8 0
The answer is C
Hope this help you!!
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Which figure appears to have more than 2 lines of symmetry?
Gennadij [26K]

Answer:

F

Step-by-step explanation:

hfbeehdbwhdbejdmrmij nj ninjunjnjr

5 0
3 years ago
Read 2 more answers
Differentiate <br> 1/√x^2-1
xz_007 [3.2K]
The function is f(x)= \frac{1}{ \sqrt{ x^{2} -1}}

write f again as f(x)= (x^{2} -1)^{- \frac{1}{2} } 

(the power -1 takes the expression to the denominator, and the power 1/2 is square root)

writing rational expressions as power expressions, generally makes differentiation more practical.

In f(x)= (x^{2} -1)^{- \frac{1}{2} } we notice 2 functions:

the outer function u^{ -\frac{1}{2} }, where u=x^{2} -1, and the inner, u itself , which is a function of x.

So we differentiate by using the chain rule:

f'(x)= -\frac{1}{2}u^{- \frac{1}{2}-1 }*u'=  -\frac{1}{2}u^{- \frac{3}{2} }*(2x)=- \frac{x}{ \sqrt{ u^{3} } } =- \frac{x}{ \sqrt{ (x^{2} -1)^{3} } }


Answer: - \frac{x}{ \sqrt{ (x^{2} -1)^{3} } }
3 0
3 years ago
Elizabeth wants to buy her mother a pair of pearl earrings for Mother’s Day. The earrings cost $50. The sales tax rate is 7.5%.
egoroff_w [7]

Answer:

$53.50

Step-by-step explanation:

7.5 percent of $50 is $3.50.

Then add $50 + $3.50.

$53.50

6 0
2 years ago
Evaluate [(40 + 5) − 32] ÷ 9 ⋅ 2<br><br> 9.3<br> 8.6<br> 8<br> 2
kirza4 [7]

Answer:

its suposed to be written [(40+5)-3^2]÷9·2

so the answer would be C.8

Step-by-step explanation:

first do whats in the brackets but inside the ark looking brackets first

[(40+5)-3^2]÷9·2

will be [45-3^2]÷9·2

and then you do the rest of the brackets but first you square 3 sitch will be come 9

so [45-9]÷9·2

witch will become

36÷9·2

now divide by 9 and get

4·2

witch is going to be

8

therefore the answer is C.8

if brainiest is earned then its greatly appreciated. have a wonderful day

3 0
3 years ago
Read 2 more answers
What is 9 (4x^2 - 3) simplified?
Ahat [919]

Answer: 36x^2-27

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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