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vovikov84 [41]
3 years ago
7

This ones also hard really hard

Mathematics
1 answer:
VashaNatasha [74]3 years ago
3 0

Answer:

this may be wrong or right I think the answer is B 9.5 in let me know if this was right

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3^2 ÷ 3^-1 explain the steps
Ksenya-84 [330]
First you would need to Simplify <span>{3}^{2}<span>3<span>​2​​</span></span></span> to <span>99

Next you would need to : </span>Use Negative Power Rule​​ =​9÷​3​​1​​
<span>
then you would need to use a ÷ b/c = a * c/b and get 9*3

And you will lastly get 27</span>
7 0
3 years ago
PLEASE HELP I NEED HELP I don’t get this
sergiy2304 [10]

Answer:  The first question is a corrosponding angle, which means the measure is the same.  So, angle KRQ is 146°.

And QRN is 128°.

7 0
2 years ago
If a polynomial function f(x) has roots 6 and square root of 5, what must also be a root of f(x)?
ivolga24 [154]

Answer:

-\sqrt{5}

Step-by-step explanation:

A root with square root or under root is only obtained when we take the square root of both sides. Remember that when we take a square root, there are two possible answers:

  • One answer with positive square root
  • One answer with negative square root

For example, for the equation:

x^{2}=3

If we take the square root of both sides, the answers will be:

x=\sqrt{3} \text{ or } x= -\sqrt{3}

Only getting one solution with square root is not possible. Solutions with square root always occur in pairs.

For given case, the roots are 6 and \sqrt{5}. Therefore, the 3rd root of the polynomial function f(x) had to be -\sqrt{5}

It seems you made error while writing option B, it should be - square root of 5.

4 0
3 years ago
Calculate the area and the circumference of the circle
tiny-mole [99]

Circumference = 2 x radius x Pi

Circumference = 2 x 0.8 x pi

Circumference = 1.6pi or 5.024 yards


area = r^2 x pi

Area = 0.8^2 x pi

Area = 0.64pi or 2.0096 square yards

6 0
2 years ago
Read 2 more answers
A boutique prices merchandise by adding 80% to its cost. It later decreases by 25% the price of items that do not sell quickly
Darya [45]
A. Write a function f(x) to represent the price after the 80% markup. 
<span>b. Write a function g(x) to represent the price after the 25% markdown. </span>
<span>c. Use a composition function to find the price of an item after both price adjustments that originally costs the boutique $150. </span>
<span>d. Does the order in which the adjustments are applied make a difference? Explain. 
</span>
answers 

 <span>a) f(x) = 1.8x 

b) f(x) = 0.75(1.8x) 

c) f(150) = 0.75(1.8(150) = $202.50 

d) No, it doesn't matter. The result is the same.
</span>
8 0
3 years ago
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