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iren [92.7K]
2 years ago
9

I need all questions please, will be giving brainliest and please make sure the answers are correct

Mathematics
1 answer:
Andrews [41]2 years ago
4 0
9 8 22
21 5 6
70 9 0
0 80 33
1 6 2
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31)
kifflom [539]
It is 70 I believe you could check with an online calculator
5 0
3 years ago
Read 2 more answers
Use the rules of exponents to evaluate or simplify.write without negative exponents. 1/4^-2=?
Talja [164]

9514 1404 393

Answer:

  4² = 16

Step-by-step explanation:

The applicable rule of exponents is ...

  1/a^-b = a^b

So, ...

 \dfrac{1}{4^{-2}}=\boxed{4^2 = 16}

_____

<em>Additional comment</em>

If you were to evaluate this using the Order of Operations, you would evaluate the exponent first:

  1/4^-2 = 1/(1/16)

Then, you would do the division.

 1/(1/16) = 16

__

We sometimes find it convenient to manipulate exponential terms to the form with the smallest positive exponents before we begin the evaluation.

5 0
2 years ago
A set of data has a mean of 0.5 and a standard deviation of 0.01. A data point of the set has a z-score of 2.5. What does a z-sc
sweet-ann [11.9K]

Answer:

DDDDDDDDDDD

Step-by-step explanation:

Just took the quiz on Edge

3 0
3 years ago
Please help me someone with this problem
Y_Kistochka [10]
I would help you but the picture is blurry
7 0
2 years ago
A certain company's main source of income is selling cloth bracelets. The company's annual profit (in thousands of dollars) as a
tester [92]

Answer:

8 thousand dollars

Step-by-step explanation:

The company's annual profit (in thousands of dollars) as a function of the price of a bracelet (in dollars) is modeled by: P(x)=-2x^2+16x-24

To find maximum profit , we need to find out the vertex

x coordinate of vertex formula is -b/2a

P(x)=-2x^2+16x-24

a=-2  and b = 16

x= \frac{-b}{2a}= \frac{-16}{2(-2)} = 4

Now we plug in 4 for x  and find out P(4)

P(x)=-2(4)^2+16(4)-24= 8

So the maximum profit the company can earn is 8 thousand dollars when price = $4


6 0
3 years ago
Read 2 more answers
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