3 years ago

Consider the function f(x)=2x-1. Whats is f(2)

1 answer:

6 0

Answer: 3

Step-by-step explanation: To find f(2) or the value of the function when x = 2, we simply substitute 2 in for x in our function.

So we have 2(2) - 1 or 4 - 1 which is 3.

So f(2) or the value of the function when x = 2 is 3.

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Answer:

Of what?

Step-by-step explanation:

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3 years ago

What is the value of x if: -0.1x + 3/10 = 4/10 Solve as linear equation. NEED HELP ASAP

Anika [276]

Answer:

x= -1

Step-by-step explanation:

Solving through linear equation,

-0.1x + 3/10= 4/10

Bring 3/10 to the other side making it minus

-0.1x = 4/10 - 3/10

-0.1x = (4-3)/10

-0.1x= 1/10

Bring -0.1 to the other side n divide

x= 1/10 ÷ -0.1

( Note that -0.1 is the same as -1/10)

x = 1/10 ÷ -1/10

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3 years ago

A. 8/17 B. 15/17 C. 15/8 D. 8/15

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Answer:

A) 8/17

Step-by-step explanation:

cos = adj/hyp

In this problem the unknown angle has a hypotenuse pf 17, 15 as opposite, and 8 as adjacent

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2 years ago

From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many combin

borishaifa [10]

Answer:

495 combinations of 4 students can be selected.

Step-by-step explanation:

The order of the students in the sample is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

How many combination of random samples of 4 students can be selected?

4 from a set of 12. So

$C_{n,x} = \frac{12!}{4!(8)!} = 495$

495 combinations of 4 students can be selected.

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there are 5 walnut trees currently in the park park workers will plant 8 more walnut trees today how many walnut trees will the

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Answer:13

Step-by-step explanation:

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