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Vlad1618 [11]
3 years ago
13

The height (h), in feet, of a balloon is calculated by using the equation h equals 3t + 2 where t is the time,in seconds. What i

s the height of ballon after 30 seconds?
Mathematics
1 answer:
navik [9.2K]3 years ago
4 0
ANSWER: 92

EXPLANATION:
You plug in 30 where t us and solve.
3(30)+2=92
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3 is 75% of what number​
Aleonysh [2.5K]

Answer:

4

Step-by-step explanation:

.75 × 4 = 3

6 0
3 years ago
PLEASE HELP ME ASAP<br> PLEASE
Marta_Voda [28]
Answer
Choice D
Company 2 is greater in avg rate of change by $750

=======================================

Explanation:

Average rate of change is the same as slope through two points. The two points are the endpoints of the interval. 

The x values we'll use is x = 0 and x = 12 since it constitutes the first 12 years (12-0 = 12)

For company 1, if x = 0 and x = 12, then y = 12000 and y = 30000 respectively. The two points (0,12000) and (12,30000) are on the graph for company 1
The slope of the line through these two points is
m = (y2-y1)/(x2-x1)
m = (30000-12000)/(12-0)
m = 18000/12
m = 1500
Over the first twelve years, the average rate of change for company 1 is 1500

For company 2, the points (0,15000) and (12,42000) are on the graph
The slope of the line through these two points is
m = (y2-y1)/(x2-x1)
m = (42000-15000)/(12-0)
m = (27000)/(12)
m = 2250
Over the first twelve years, the average rate of change for company 2 is 2250

Now find the difference in the slopes
2250-1500 = 750

Company 2's rate of change is larger by $750
So that's why the answer is choice D. Over this timespan, company 2 is growing faster on average compared to company 1

7 0
3 years ago
What number is the opposite of 35?
wlad13 [49]

Answer:

I believe its -35

Step-by-step explanation:

negatives are opposites or positives lmk ig I'm wrong

6 0
3 years ago
I NEED HELP PLEASE!!!!!!
il63 [147K]

Answer:

y-intercept: 11

which means the baby weighs 11 lb when it is born (t=0).

Step-by-step explanation:

4 0
3 years ago
Bella says 18 is the same as 10 ones and 8 tens
ss7ja [257]

Answer:

Bella is largely mistaken.

Step-by-step explanation:

What she described equals 90

7 0
3 years ago
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