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2 years ago

10

Please help!!! I'm unfortunately really bad at Algebra.

1 answer:

leonid [27]2 years ago

6 0

Answer:

c

Step-by-step explanation:

Beauc websqwne

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Which absolute value function, when graphed, represents the parent function, f(x) = |x|, reflected over the x-axis?

Gala2k [10]

Reflecting the point (x, y) over the x-axis transforms it to the point (x, -y). Then the points (x, f(x)) on the graph of f(x) will be transformed to (x, -f(x)) when the graph is reflected over the x-axis.

The reflection of the function f(x) = |x| is -f(x) = -|x|. If we name the reflected function f(x), we have
f(x) = -|x|

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3 years ago

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If m -(-3) > 17, which is a possible value for m?

masha68 [24]

Step-by-step explanation:

m-(-3)>17

m +3>17

m >17-3

m>14

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2 years ago

He takes a random sample of 49 recent charterholders and computes a mean salary of $172,000 with a standard deviation of $35,000

uysha [10]

Answer:

the 90% of confidence intervals for the average salary of a CFA charter holder

(1,63,775 , 1,80,000)

Step-by-step explanation:

<u>Explanation</u>:-

random sample of n = 49 recent charter holders

mean of sample (x⁻) = $172,000

standard deviation of sample( S) = $35,000

Level of significance α= 1.645

<u> 90% confidence interval</u>

$(x^{-} - Z_{\alpha } \frac{s}{\sqrt{n} } , x^{-} + Z_{\alpha } \frac{s}{\sqrt{n} })$

$(172000 - 1.645 \frac{35000}{\sqrt{49} } , 172000 +1.645 \frac{35000}{\sqrt{49} })$

on calculation , we get

(1,63,775 , 1,80,000)

The mean value lies between the 90% of confidence intervals

(1,63,775 , 1,80,000)

4 0

3 years ago

8÷2 (2+2)=X <br> What is the value of x?

faltersainse [42]

8/2(2+2)=X
8/2(4)=X
4(4)=X
16=X

Your answer would be X=16

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3 years ago

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Which number has the same value as 20 tens

Leviafan [203]

200.

Twenty groups of ten = 20x10
20x10 = 200

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2 years ago

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