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Jobisdone [24]
3 years ago
8

Are these correct? Thanks.

Mathematics
1 answer:
aniked [119]3 years ago
5 0
8 and 10 aren't functions. In a function each input has only one output.
For 8, input 1 = 4, 7
For 10,input 3=7, 6
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A quarterback throws a football to a teammate. The football is 6.5ft above the ground when it leaves the quarterback's hand. His
777dan777 [17]
You never actually asked a question but if you are asking the rate at which the football traveled then that would be traveling 1 foot down every 2.33333 seconds
7 0
2 years ago
Read 2 more answers
At 6:00 A.M. the temperature was 33°F. By noon the temperature had increased by 10°F and by 3:00 P.M. it had increased another 1
sergij07 [2.7K]

Answer:

The temperature needs to decrease by 7°F to return to the original temperature.

Step-by-step explanation:

The temperature starts at 33 degrees then increases by 10 then 12 then decreases by 15 which will equal 40.

33 + 10 = 43

43 + 12 = 55

55 - 15 = 40

40 - 33 = 7

The temperature needs to decrease by 7 degrees.

5 0
3 years ago
2(k + 1) = -4(k - 2)​
Misha Larkins [42]

Answer:

1

Step-by-step explanation:

2(k + 1) = -4(k - 2)

2k + 2 = --4k+8

2k+4k=8-2

6k=6

k=6/6

k=1

7 0
2 years ago
Read 2 more answers
It is known that 5% of the population over the age of 30 in a city is a university graduate. Among the 100 people chosen randoml
Novosadov [1.4K]

Answer:

A) 1/3200000

B) 19/20

Step-by-step explanation:

Percentage population of graduates = 5

Proportion of graduates from 100 random samples = percentage × number of samples

Proportion of graduates = 0.05 × 100 = 5

Probability of having 5 graduates among the 100 random samples:

P(1 graduate) = possible outcome / total required outcome

P(1 graduate) = (5 / 100) = 1/20

P(5 graduates) = (1/20)^5

P(5 graduates) = 1/3200000

Probability of never being a graduate = (1 - probability of being a graduate)

Probability of never being a graduate = ( 1 - (1/20)) = 19/20

5 0
3 years ago
9/(x - 8) = 4/5 how to solve this proportion
ICE Princess25 [194]
\frac{9}{x-8}=\frac{4}{5}
Cross multiply:
(9)(5)=(4)(x-8)
Simplify:
45=4x-32
Group like terms:
77=4x
Solve for x by division:
x=\frac{77}{4}
x=19.25
6 0
3 years ago
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