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omeli [17]
4 years ago
10

Plz look at this and help me

Mathematics
1 answer:
STALIN [3.7K]4 years ago
5 0

Answer:

1, 3 and 4

Step-by-step explanation:

Just because you have to solve for x

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Help ASAP Ill give you brainliest
LenKa [72]

Answer:

none of these

Step-by-step explanation:

There are 3 boys walking

There are a total of 20 people

3/20 = 0.15

That is 15 percent, therefore none of these answers.

4 0
3 years ago
Plz help me ASAP it’s important
Hunter-Best [27]

Answer:

D. 6.3

Step-by-step explanation:

Well you can make a triangle with the line PQ with it's height as 2 and base as 6.

Then you can use the Pythagorean Theorem to find the length of PQ.

a²+b²=c²

2²+6²=c²

4+36=c²

40=c²

c²=40

<em>Square root both sides</em>

c=\sqrt{40}

c≈6.3

Our answer is D. 6.3

5 0
4 years ago
According to the Rational Root Theorem, the following are potential roots of f(x) = 60x2 – 57x – 18. Which is an actual root of
emmainna [20.7K]

Answer: The correct option is third, i.e., -\frac{1}{4}.

Explanation:

The given function is,

f(x)=60x^2-57x-18

The Rational Root Theorem states that the rational roots are in the form of,

r=\frac{\text{factors of constant term}}{\text{factor of leading coefficient}}

These rational roots are possible rational roots not the actual roots of f(x).

For actual roots of f(x), the value of the function is 0.

Put each value of x from the option in the function, if we get the value of f(x) is 0, then that value is the actual root of f(x).

Put x=3.

f(3)=60(3)^2-57(3)-18=351\neq 0

Put x=6

f(6)=60(6)^2-57(6)-18=1800\neq 0

Put x=-\frac{1}{4}

f(-\frac{1}{4})=60(-\frac{1}{4})^2-57(-\frac{1}{4})-18=0

Put x=-\frac{6}{5}

f(-\frac{6}{5})=60(-\frac{6}{5})^2-57(-\frac{6}{5})-18=136.8\neq 0

Only for x=-\frac{1}{4} the value of function is 0, therefore the correct option is third.

7 0
4 years ago
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25 POINTS AND BRAINLIEST IF ANSWERED CORRECTLY!
vesna_86 [32]
X=-1 hope this helped!
3 0
3 years ago
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Find (f*f)(0)<br> f(x)=3x-2
Lemur [1.5K]

Answer:

Option C. -8

Step-by-step explanation:

They ask us to find

(fof)(0)

To solve this problem we must introduce the function f(x) within the function f(x)

That is, we must do g(f(x)).

So, we have:

f(x) = 3x-2

Then:

f(f(x)) = 3(3x-2)-2

This is:

f(f(x)) = 9x-6 -2

f(f(x)) = 9x-8

Now we must do x = 0

f(f(0)) = 9(0) -8

(fof)(0)  = -8

The answer is: option c (fof)(0) = -8.

6 0
3 years ago
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