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3 years ago

Pl0x halp fast DDDD:

Mathematics

1 answer:

N76 [4]3 years ago

8 0

(Lets hope i'm right.)

1. A I think.

2. A since its a question

Have a lovely day! ~Pooch ♥

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PLEASE HELP 25PTS!! Select the correct answer from each drop-down menu.

lions [1.4K]

Answer:

The quality control facility operates for 10 hours each day.

Step-by-step explanation:

The given function models the number of cars that are put through a quality control test each hour at a car production factory.

The given function is

$c(t)= -t^2+8t+20$

We need to find the number of hours does the quality control facility operate each day.

Rewrite the given function it factored form.

$c(t)= -t^2+(10t-2t)+20$

$c(t)= (-t^2+10t)+(-2t+20)$

Taking out the common factors from each parenthesis.

$c(t)= -t(t-10)-2(t-10)$

$c(t)= (t-10)(-t-2)$

$c(t)=-(t-10)(t+2)$

The factored form of given function is c(t)=-(t-10)(t+2).

Equate the function equal to 0 to find the x-intercept.

$0=-(t-10)(t+2)$

$t-10=0\Rightarrow t=10$

$t+2=0\Rightarrow t=-2$

Number of hours cannot be negative. So from t=0 to t=10 quality control facility operate the cars.

Therefore the quality control facility operates for 10 hours each day.

7 0

2 years ago

What can you say about the 3's in the number 43,335

kolbaska11 [484]

I assume it's 43 <em>thousand</em> and 335, not 43 <em>point</em> 335.

The first 3 from the right is for tens, the second is 10 times stronger because it's for hundreds and the fourth is again 10 times stronger because it's for thousands. Hopefully that's what you meant :)

5 0

3 years ago

The quotient of a number and -7 is less than 13

Tomtit [17]

Answer:is there a picture along with this? I don't remember how to do these but this sounds like something with a picture included

Step-by-step explanation:

5 0

3 years ago

Find four consecutive odd integers such that 5 times the sum of the first and the third is 15 more than 5 times the fourth.

Dvinal [7]

Answer:

The required numbers are :