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Cerrena [4.2K]
3 years ago
15

A student’s incorrect attempt to simplify an exponential expression is show in the box

Mathematics
1 answer:
marishachu [46]3 years ago
8 0

Answer:

A

Step-by-step explanation:

x^a/x^b=x^(a-b). General rule of exponents

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Suppose that x and y vary inversely, and x = 7 and y=11. Which function models the inverse variation?Answers:Y=1.57xY=77/xY=4/xY
sdas [7]

Answer:

Y=77/x

Explanation:

Y varies inversely with x meaning

y\propto\frac{1}{x}

adding a proportionality constant gives

y\propto\frac{k}{x}

Now, we are told that y = 11 and x = 7; therefore, the above gives

11=\frac{k}{7}

Solving for k gives

k=77

Therefore, the function that models the inverse variation is

y=\frac{77}{x}

which is our answer!

5 0
11 months ago
Kelsie sold digital cameras on her website . She bought the cameras for $65 each and includes a 60% markup to get the selling pr
ryzh [129]

Answer:

$104

Step-by-step explanation:

First, convert 60% to a decimal.

60% = 0.6

Now, multiply the cost to buy the camera ($65) by the decimal.

$65 × 0.6 = $39

Now, add this amount to the amount it cost to buy the camera.

$65 + $39 = $104

The selling price for the camera will be $104.

5 0
3 years ago
WILL GIVE BRAINLIEST<br> Solve for y in terms of w, x, and z.<br> x=zyw<br> y=
Advocard [28]

Answer:

y= x/zw

Step-by-step explanation:

Isolate the variable by dividing each side by the factors that dont contain the variable

x = zyw /zw

y=x/zw

3 0
3 years ago
Which of the following represents 76% as a fraction in simplest form? A. 37/50 B. 19/25 C. 39/50 D. 17/25
lakkis [162]
I hope this helps you



76%


76/100


4.19/4.25


19/25
8 0
3 years ago
Read 2 more answers
How to covert 11 pi over 12 to degrees
Readme [11.4K]
When you convert 11pi over 12 in to degrees, you get 165°
4 0
3 years ago
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