MATHEMATICS HIGH SCHOOL

For the graph below, what should the domain be so that the function is at least 600? (1 point)graph of y equals minus 2 times the square of x plus 40 times x plus 600


0 ≤ x ≤ 20
−10 ≤ x ≤ 30
x ≥ 0
All real numbers

Answers

Answer 1
Answer: Answer: The first interval:0 ≤ x ≤ 20

Procedure

You have to solve this inequality

-2x^2 +40x +600 ≥ 600

-2x^2 +40x  ≥ 0

-x^2+20x ≥ 0

x^2 - 20 x ≤ 0

x(x-20) ≤ 0

That is only possible if the two factors have different signs.

Let's examine the possibilities

       x ≥ 0 and x -20 ≤ 0⇔x≤20, that is 0≤x≤20

The other possibility is

       x ≤ 0 and x - 20 ≥ 0 ⇔x≥20. This conditions is not possible.

So the solution is 0≤x≤20

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You have the numbers 1-24 written on slips of paper. if you choose one slip at random, what is the probability that you will select a number that is not divisible by 3?3/8
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Answers

First find the numbers that are divisible by 3.
3, 6, 9, 12, 15, 18, 21, 24
There are 8 numbers divisible by 3 so there are 16 that are not divisible by 3.
P(not div by 3) = 16/24 = 2/3

60 is what percent of 72

Answers

If you would like to solve 60 is what percent of 72, you can calculate this using the following steps:

60 is what percent of 72
60 = x% of 72
60 = x% * 72
60 = x/100 * 72
60/72 = x/100
x = 60/72 * 100
x = 83.33%

The correct result would be 83.33%.
60 is 83% of 72.


60 divided by 12 is 5, and 72 divided by 12 is six.
5/6 equals 0.83
0.83 x 100 is 83, or 83%.

Brainiest would be nice.

Refer to pictures above real help please

Answers

Answer:

38.7°

Step-by-step explanation:

∆ = Tan-1(opposite/ Adjacent)

=Tan-1(8/10)

= 38.66°

= 38.7° to n nearest tenth

The temperature is 18 farenheit at 7am. By 2pm,the temperature has gotten warmer by 28 degrees. What is the temperature at 2pm?

Answers

Answer: 46 degrees

Step-by-step explanation:

To find the temperature at 2 p.m., we can add the increase of 28 degrees to the initial temperature of 18 degrees.

18 + 28 = 46

Therefore, the temperature at 2 p.m. is 46 degrees Fahrenheit.

Happy to help; have a great day! If you liked my answer, please give me Brainliest :)

PLEASEEE HELPPPP ASAPPPPP

Answers

Answer:

70

Step-by-step explanation:

For f(-4)=5(2-3(-4))=5(2+12) because - times - makes +

Therefore 5x2=10 + 5x12=60

10+60=70

Correct answer= MARKED BRAINLIEST

Answers

Answer: the answer would be 24 = m

Step-by-step explanation:

I got that answer be dividing both 2.5 and 15 and figured out that 1 hour equals 6 mile so that would make it so that it is 24
not sure exactly, but the answer for m on the top is 6.
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