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ruslelena [56]
3 years ago
8

What is the surface area of a cylinder with a 3.9 radius and a 1.8 height?

Mathematics
1 answer:
Aneli [31]3 years ago
4 0

Answer:

Its a i just too the test

Step-by-step explanation:

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Simplify (4/5)^-2. Show your work!<br> PLEASE HELP ASAP! 40 POINTS!
Olenka [21]

Answer: (16/25)

Step-by-step explanation: That's -(4/5) x -(4/5) = (16/25). It's that answer because a negative times a negative equals a positive. The exponent in the problem is telling you to multiply -4/5 times itself 2 times.

5 0
3 years ago
PLEASEEE help with 3-4 and a-b :)
attashe74 [19]
The awnser would be-(4a+b-3) I hope this helps you
3 0
3 years ago
2. A jeweler bought an antique watch for $500. He then sold it in his store $850. What was the percent of change in the price of
Mars2501 [29]

Answer:

70% increase

Step-by-step explanation:

8 0
3 years ago
What is 1.3333333 as a fraction ?
denis23 [38]
The answer is 1 3/9. The reason is because it repeats 3 so it would be 9 at the bottom.
8 0
3 years ago
Read 2 more answers
What are the solutions of this system of equations?
SpyIntel [72]

Answer:

Option C is correct.

Step-by-step explanation:

y = x^2-x-3     eq(1)

y = -3x + 5      eq(2)

We can solve by substituting the value of y in eq(2) in the eq(1)

-3x+5 = x^2-x-3

x^2-x+3x-3-5=0

x^2+2x-8=0

Now factorizing the above equation

x^2+4x-2x-8=0

x(x+4)-2(x+4)=0

(x-2)(x+4)=0

(x-2)=0 and (x+4)=0

x=2 and x=-4

Now finding the value of y by placing value of x in the above eq(2)

put x =2

y = -3x + 5

y = -3(2) + 5

y = -6+5

y = -1

Now, put x = -4

y = -3x + 5

y = -3(-4) + 5

y = 12+5

y =17

so, when x=2, y =-1 and x=-4 y=17

(2,-1) and (-4,17) is the solution.

So, Option C is correct.

7 0
3 years ago
Read 2 more answers
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