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UNO [17]
3 years ago
13

1. Darius wants to simplify the expression below but does not have a calculator,

Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Step-by-step explanation:

it's answer (a) because he has to multipy the fractions because always fractions goes first and then he needs to add 5

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Please help if u see this
jek_recluse [69]
<h3>Answer: Choice D</h3>

(f \circ g)(x) = x+12

Domain = [-3, infinity)

==================================================

Work Shown:

f(x) = x^2 + 9\\\\f(g(x)) = (g(x))^2 + 9\\\\f(g(x)) = (\sqrt{x+3})^2 + 9\\\\f(g(x)) = x+3 + 9\\\\f(g(x)) = x+12\\\\(f \circ g)(x) = x+12\\\\

In step 2, we replaced every x with g(x)

In step 3, we plugged in g(x) = sqrt(x+3)

The domain of g(x) is [-3, infinity), so this is the domain of (f \circ g)(x) as well since the composite function depends entirely on g(x). Put another way: the input of f(x) depends on the output of g(x), so that's why the domains match up.

7 0
2 years ago
A study of 600 college students taking statistics 101 revealed that 54 students received the grade of
Anna007 [38]

A study of 600 college students taking statistics 101 revealed that 54 students received the grade of

a. Typically 10% of the class gets an A

b.  The difference between this group of students and the expected value is not significant at the 0.05 level. what does this mean in this case?


Your answer would mean that, =====>  The probability of getting an A is 10% and only 9% got an A, in this study.  The difference is less than 5% therefore, in this case, it is not significant.




Hope  that helps!!!!              : )


3 0
3 years ago
Does (9,8) make the inequality y &lt; 10×+8 true
ExtremeBDS [4]

Answer:

Yes, the point makes the inequality true

Step-by-step explanation:

y < 10x+8

Substitute x =9 and y=8 into the inequality

8 < 10*9+8

8<90+8

8<98

This is true so the point makes the inequality true

7 0
3 years ago
Read 2 more answers
Why would using a net and needing to know how to calculate surface area be an important part of designing a three-dimensional ob
son4ous [18]

Answer:

A net is a pattern made when the surface of a three-dimensional figure or solid is laid out flat showing each face of the figure. It is then possible to use the net to calculate the surface area of the solid. Surface Area of a Cube using Nets. A cube is a three-dimensional figure with six matching square faces.

Step-by-step explanation:

hope it helps

4 0
3 years ago
Which of the following equations has the same solution as the equation 3x+2y= -12?
vodka [1.7K]
-3x - 2 = 12 is the answer
Take the original problem and input (-2,-3)
3(-2) + 2(-3) = -12
-6 + -6 = -12
Now input into new problem:
-3(-2) - 2(-3) = 12
6 + 6 = 12
PLEASE GIVE BRAINLIEST
5 0
2 years ago
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