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balu736 [363]
4 years ago
13

PLEASE HELP 20 POINTS

Mathematics
1 answer:
Rudiy274 years ago
3 0
A) 9 is 3². So the answer would be y = 3^2x.

B) 81 is 9². 9 is 81^-4. So the answer would be y = 81^-4.
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Select the equivalent expression. 2^-4 = ?​
mrs_skeptik [129]

Answer:

1/16

Step-by-step explanation:

This means 1/2x2x2x2  = 1/16

7 0
2 years ago
I NEED HILP PLS HOW IS THIS THE ANSWER....
Citrus2011 [14]

Answer:

The answer is correct, here's why:

Step-by-step explanation:

Dr. Silva's tank holds 15\frac{7}{8} gallons of gas.

She added 11.55 gallons to her tank to fill it up.

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5 0
2 years ago
A study funded by the National Center for Complemnetary and Alternative Medicine found that echinacea was not an effective treat
Arada [10]

Answer: Concealment of a particular group from one or more individuals

Step-by-step explanation:

Blinding is a term used to conceal a particular group from one or more individuals who are involved a clinical study. Blinding is used in this study to evaluate the placebos. This was important in this study because the treatment being done by  echinacea was no being effective. So in order to gain good results and to see the actual results, blinding was done.

6 0
3 years ago
A equivalent expression to 9x-7y-6x
daser333 [38]

Answer:

3x - 7y

Step-by-step explanation:

<u>Step 1:  Combine like terms</u>

<u />9x - 7y - 6x

(9x - 6x) - 7y

3x - 7y

Answer:  3x - 7y

8 0
4 years ago
Read 2 more answers
Plz help me out!<br><br> **Please answer only if you know the answer**
andrey2020 [161]

Answer:

pi=c/2r

g=1.5hr+ht

t=l/pr

r=g/(p-t)

b=y-mx

k=(P-5h)/2

g=v/wh

t=a/w

Step-by-step explanation:


7 0
4 years ago
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