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emmasim [6.3K]
3 years ago
8

Answer question 30 all a&b&c

Mathematics
1 answer:
wolverine [178]3 years ago
6 0
A. Mars 37.7% and moon 16.6%.
b. not 100% sure, but could be y=.377x and y=.166x
c. 29.88
d. 425.52
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A student earns an 80% on their science test. If she got 20 questions correct, how many total were on the test?
galina1969 [7]
25 questions
Explanation: 20 divided by 25 is .8 which is 80%
5 0
3 years ago
Midpoint.<br> (3,3), (-1,1)
Scilla [17]

Answer:

1,2

Step-by-step explanation:

3+-1=2

2/2=1  

3+1=4

4/2=2

7 0
3 years ago
Solve 5x -c = k for x
inysia [295]

x = \frac{k+c}{5}

isolate 5x by adding c to both sides of the equation

5x = k + c ( divide both sides by 5 )

x = \frac{k+c}{5}


6 0
3 years ago
Read 2 more answers
What is the value of n so that the expression x^2+12X+n is a perfect square trinomial?
Anton [14]
N is equal = 36

Or

n = 6^2

Because,

x^2 + 12x + 36 = x^2 + 2.6x + 6^2

= ( x + 6)^2

4 0
3 years ago
Read 2 more answers
Use the drop-down menus to complete the statements. in order for f–1(x) to be a function, the domain of f(x) can be restricted t
zmey [24]

Using concepts of the inverse function, it is found that:

The domain of f(x) has to be restricted to x >= 1. Under this restriction, the domain of f-1(x), would be (2,∞), having the same minimum value as the original function f(x).

<h3>How to find the inverse of an equation or a function?</h3>

To find the inverse, we have to exchange x and y and then isolate y. This can only happen if the function f(x) is injective, that is, each value of the output is related to only one value of the input. Then:

  • The domain of f(x) is the range of the inverse function f-1(x).
  • The range of f(x) is the domain of the inverse function f-1(x).

Researching this problem on the internet, we are given an absolute value function with vertex at x = 1, meaning that for the inverse, the domain of f(x) has to be restricted to x >= 1. The domain of the inverse would be the range of f(x), which is (2,∞).

Then:

The domain of f(x) has to be restricted to x >= 1. Under this restriction, the domain of f-1(x), would be (2,∞), having the same minimum value as the original function f(x).

More can be learned about inverse functions at brainly.com/question/8824268

#SPJ1

6 0
2 years ago
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