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Thepotemich [5.8K]
3 years ago
8

Jorge was tracking the decreasing temperature in the morning. At 7 a.m., it was 65 degrees Fahrenheit. At 9 a.m., it was 55 degr

ees Fahrenheit. If Jorge made the function f(x) = −5x + 100, what would the −5 represent?
a. The temperature at midnight
b. The length of time he recorded for
c. The total change in degrees
d. The rate at which the temperature was decreasing
Mathematics
1 answer:
Anna007 [38]3 years ago
5 0
D. because for every hour it goes down 5 degrees and since there is a 1 hour gap in between 7 am and 9 am 
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Luis, using appropriate safety precautions, fires a .22 caliber gun directly into the sky above him. The bullet travels at a spe
Tanya [424]

The equation represents height as a function of time.

The bullet was in the air for 75 seconds.

The equation is given as:

h(t) = -16t^2  + 1200t

The time spent in the air is the time it takes the bullet to land on the ground.

When the bullet is on the ground, the height is:

h(t) = 0

So, we have:

h(t) = -16t^2  + 1200t

-16t^2 + 1200t = 0

Factor out t

t(-16t + 1200) = 0

Split

t = 0 or -16t + 1200 = 0

t = 0 represents when the shot is fired.

So, we solve for t in -16t + 1200 = 0

Collect like terms

16t = 1200

Divide both sides by 16

t = 75

Hence, the bullet was in the air for 75 seconds

Read more about height and time at:

brainly.com/question/2261757

5 0
2 years ago
95 out of 1200 randomly selected people surveyed in the u.s said they would rather watch baseball on television than go to a gam
Brums [2.3K]

Answer:

C.) go to a baseball game than watch it on television

Step-by-step explanation:

Only 7.9% of the 1200 people would rather watch a game on television than go to a game.

  • <em>That means 92% of the group would rather go to a game, instead of watching it on television.</em>

Your answer should be letter C, most people would rather go to a baseball game than watch it on television

5 0
3 years ago
What is the first step to solve the equation 9h-31=99?
pishuonlain [190]

Add 31 to both sides which will give you

9h = 130

4 0
3 years ago
Read 2 more answers
5.) Evaluate the function. f(x)=8x+9 for f(5). Show your work and write your
irina1246 [14]

Answer:

49

Step-by-step explanation:

f(5)=8×5+9=40+9=49

7 0
3 years ago
What is a rational number that is between 5.2 and 5.5
____ [38]
A rational number can be represented in a ratio of a/b.  

Therefore, 5.3 would be a rational number in between 5.2 and 5.5, as it can be represented as 53/10. 

Hope that helps!
4 0
3 years ago
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