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elena55 [62]
2 years ago
13

To solve the inequality -1/4x>-2, Chrissy thinks she should add 1/4 to both sides. What is wrong with her first step?

Mathematics
1 answer:
Darina [25.2K]2 years ago
5 0
Answer D because you want to get the x by itself and in order to do this she needs to multiply by -4 so that one side only has x.
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Simplify the expression.<br><br> can anyone explain to me how to do this? please
WINSTONCH [101]

Answer:

The answer is the last one (32x^7y^15)

You can bring x to the second power (x^2) because (x) is basically x^1. This is a basic exponent rule. (x^m)^n = x^m times n.

Then you can apply this rule to (2xy^3)^5. First you bring two to the fifth power and get 32. Then you bring x^5 according to the rule. Then you bring y^15, also because of the rule.

Now you have:

x^2 times 32x^5y^15

Now you just multiply the like terms together (x^2 and x^5)

When you multiply two exponents with the same base, you add the exponents together: a^n times a^m = a^n+m.

So you end up with 32x^7y^15



5 0
2 years ago
Read 2 more answers
A car wheel has a diameter of 20.8 inches.
m_a_m_a [10]

Answer:

  • 65.312 inches
  • 326.56 inches
  • 1959.36 inches

Step-by-step explanation:

<h3>Given</h3>
  • d = 20.8 inches
<h3>To find</h3>
  • Travel in 1, 5, 30 rotations
<h3>Solution</h3>

<u>Circumference of the wheel is equal to one full rotation</u>

  • C = πd = 3.14*20.8 = 65.312 inches
  • 5C = 5*65.312 = 326.56 inches
  • 30C = 30*65.312 = 1959.36 inches
7 0
2 years ago
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Evaluate the function below for f(3)<br> f (x) = 3x2 - 5<br> what’s the answer
Novay_Z [31]
The answer is 13 because you would plug in 3(3) which is 9 then you multiply (9)(2) which is 18 they you subtract 18-5 which equals 13
4 0
3 years ago
(x+3)^2+5=-28
Sidana [21]

Answer:

Description

Step-by-step explanation:

a. 2 solutions

b. 2 imaginary solutions

c. If the discriminant is positive, then it will have 2 real solutions as the square root of a positive number always equals a positive number. If the discriminant is negative, the quadratic equation will have 2 imaginary solutions, as the square root of a negative number is always imaginary. If the discriminant equals 0, it will have only 1 real solution.

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A figure is triangular in shape and is semicircular at the bottom. find perimeter and area of figure
asambeis [7]
Fr we need the measurements to do the work bro
5 0
2 years ago
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