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gavmur [86]
2 years ago
5

WHY IS NOBODY HELP ME I GOT 2 OTHER QUESTIONS POSTED AND NOBODY ANSWERED ME

Mathematics
2 answers:
lina2011 [118]2 years ago
8 0

Answer:

B. F(0) = 4

Step-by-step explanation:

Im unsure about the C tho.

andriy [413]2 years ago
3 0
Not everybody knows the answers and sees your questions
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A TV producer wants to analyze the number of songs played in each episode of a TV series. The number of songs played in various
Andrew [12]

Answer:

Sorry about that

Step-by-step explanation:

5 0
2 years ago
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Write the quadratic equation whose roots are 1 and -5, and whose leading coefficient is 3.
Anna35 [415]

Step-by-step explanation:

they're is a neat little trick.

but first of all, "roots" means the 0 solutions of the equation. like

ax² + bx + c = 0

there are 2 solutions for x to make the whole expression equal 0.

these are the "roots".

now to the little trick :

when is a multiplication resulting in 0 ?

when at least one of the factors is 0.

and any quadratic expression can be written as multiplication of 2 factors. like

c(x - a)(x - b) = cx² - cax - cbx + cab

what are the "roots" or 0 points ?

either

c = 0

x - a = 0 | x = a

x - b = 0 | x = b

the leading coefficient = 3.

that means nothing else than c = 3.

root = 1 means (x - 1) is one factor.

root = -5 means (x + 5) is the other factor.

so, we have

3(x - 1)(x + 5) = 3x² + 12x - 15

and the equation is

3x² + 12x - 15 = 0

or

3x² + 12x = 15

7 0
2 years ago
Maria needs to make a total of 80 deliveries this week. So far she has completed 48 of them. What percentage of her total delive
Amiraneli [1.4K]

What I always do to solve this, is find a common factor for each number first.

Usually 4 or 5 works best. I'll use 4.

4 goes into 80 20 times, which means that 4 = 5%  of 80.

If 4 = 5%, and 48 = 12 x 4,    then 48 must equal 60% of 80.

(Another way to solve this problem is:  simplify 48 / 80.  This simplifies to 3/5.

3/5 = 60%)!

4 0
3 years ago
What happens to the energy not output by a machine​
Sveta_85 [38]

Answer:

By using the energy conservation law, the input energy must be equivalent to the output energy.  If you measured output energy is lower than your input energy, you have lost that difference of energy either in mechanical inefficiency (friction, heat, etc.) or an energy sink.

Thus, the energy not output by the machine is lost in the process within the machine.

Cheers.

5 0
3 years ago
A group of 5 people goes to the theater. If each ticket costs $6.50, is $50 a reasonable estimate for the cost of 5 tickets ? Ex
MAVERICK [17]
No it is not because its more then ten numbers away from the solution of the five tickets
6 0
3 years ago
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