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IRINA_888 [86]
3 years ago
8

Help me real quick plz, will give more points and 5 star rate if right answer is given.

Mathematics
2 answers:
Kaylis [27]3 years ago
8 0

Answer:

D

Step-by-step explanation:

yulyashka [42]3 years ago
6 0

Step-by-step explanation:

I think D

But I am not sure

sorry unknowingly I typed option A

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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
Factor 20w - 15.<br> please someone help!
CaHeK987 [17]

Answer:

5( 4w -3)

Step-by-step explanation:

just pulled out a 5

6 0
3 years ago
Read 2 more answers
Congruence postulates
ZanzabumX [31]

Step-by-step explanation:

Ok, imagine I have a finger pointed up, and you have your's as well. They are not congruent / parallell to each other because they are not in the same plane.

Plane: A plane is kind of the space around you, so take a paper and draw a line, the space around the line is called a plane. To make two lines parallell, they have to be straight and be in the same plane

Congruence/congruent= Equal(led) to

Postulates means that you know it without proof, for example, a right angle is 90 degrees.

There are different congruence postulates. It can be used for triangles or for other shapes.

I hope this answers your question, I am not to sure on what you said !

6 0
3 years ago
You roll a 6-sided die. What is P(odd)? Write your answer as a fraction or whole number.
Troyanec [42]

Answer:

the chances of you gettin a odd number is 3/6 since you have 1 3 and 5

Step-by-step explanation:

7 0
2 years ago
Marina earns $15 for 1 hour of babysitting $23 for 2 hours of babysitting and $31 for 3 hours of babysitting. Write a function t
DochEvi [55]

Answer:

Step-by-step explanation:

Let y represent the amount that Marina earns for babysitting.

Let x represent the number of hours of babysitting.

If we plot the graph of y on the vertical axis and x on the horizontal axis of a graph,

the slope which is expressed as

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

Slope = (23 - 15)/(2 - 1) = 8

We would model the function in the slope intercept form which is expressed as

y = mx + c

Where c represents the intercept.

To determine c, we would substitute y = 15, x = 1 and m = 8 into y =mx + c. It becomes

15 = 8 × 1 + c

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c = 15 - 8 = 7

The function that describes the sequence would be

y = 8x + 7

7 0
3 years ago
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