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marusya05 [52]
3 years ago
5

please help asap i’m about to give up on this entire assignment i’ve been on this same question for like 20 minutes now and i’ve

already asked irl people for help they don’t know either

Mathematics
2 answers:
andre [41]3 years ago
8 0

Answer:

  • C and D

Step-by-step explanation:

<u>Area of the top section:</u>

  • A₁ = x*(x - x + 3) = x*3 = 3x in²

<u>Area of the bottom section:</u>

  • A₂ = (x + 4)(x - 3) = x² + x - 12 in²

<u>Total area:</u>

  • A = A₁ + A₂ =
  •      (3x) + (x² + x - 12) in²

Correct choices are C and D

Lilit [14]3 years ago
4 0

Answer:

C & D

Step-by-step explanation:

top box area = x(x-(x-3)) = 3x

bottom box area = (x+4)(x-3) = x^2 -x -12

so correct ans is C & D

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The number of bacteria, B, in a refrigerated food is given by the function b(t) = 15t2 - 60t + 125, where t is the temperature o
Nimfa-mama [501]

Answer: b(t(h))=135h^2+180h+125


Step-by-step explanation:

Given: The number of bacteria, B, in a refrigerated food is given by the function  b(t)=15t^2-60t+125 , where t is the temperature of food in degrees Fahrenheit.

The function t(h)=3h+4 gives the temperature, t, of the food h hours after being removed from the refrigerator.

Now, the number bacteria in the food in h hours is given by:-

b(t(h))=15(3h+4)^2-60(3h+4)+125\\=15(9h^2+16+24h)-180h-240+125\\=135h^2+240+360h-180h-240+125\\=135h^2+180h+125

So, The number bacteria in the food in h hours is given by:

b(t(h))=135h^2+180h+125


4 0
3 years ago
PLEASE SOLVE CORRECTLY!!! I HAVE CHECKED THE ANSWER AND IT SAYS $64.67 BUT I DON'T KNOW THE PROCESS TO GET THAT ANSWER!!! HELP!!
Sphinxa [80]

Answer:

see below

Step-by-step explanation:

First determine how much is subtracted from the account

12.57+24.95+36.86 =74.38

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Subtract the amounts of the checks and the check fees

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7 0
3 years ago
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A sales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her st
Otrada [13]

Answer:

  C.  the initial number of club members, in hundreds

Step-by-step explanation:

The general form of such an expression is ...

  (initial value)×(growth factor per period)^(number of periods)

The use of 12 in the exponent suggests that the growth factor of 1.02 is an annual factor. If that is the case, for t months, the membership should be modeled as ...

  1.8(1.02^(t/12))

_____

As written, the expression is not an exponential expression. With appropriate parentheses, it might be a good model if t is the number of <em>years</em> (not <em>months</em>), and if the expected growth rate is 2% per month.

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3 years ago
Which of the following correctly lists angle pairs that have sums of 180° and 90°?
Kisachek [45]

C.) supplementary angles, complementary angles

Step-by-step explanation:

Look at the picture below.

A supplementary angle(s) has a total sum of 180°

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Other angles like congruent, only refer to an angle that is exactly the same.

Therefore, C would be the correct answer.

5 0
2 years ago
8. Find the cube root of 4096 by prime factorisation method.
Anton [14]
4096|2
2048|2
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512|2
256|2
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1

4096=2^{12}\\\\&#10;\sqrt[3]{4096}=\sqrt[3]{2^{12}}=\sqrt[3]{(2^4)^3}=2^4=16



5 0
3 years ago
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