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3 years ago

What time is four and a half hour before 11:45 am

Mathematics

2 answers:

MrRa [10]3 years ago

5 0

Answer:

11:45 - 4 hrs = 7:45 - 30 mins(1/2 hour)(1 hour=60 minutes) = 7:15

Anna [14]3 years ago

4 0

Answer:

7:15 AM

Step-by-step explanation:

First, take 11 - 4 to give you 7. The 11 comes from the starting time, and the four comes from the four and a half hours.

Next, you'll take 45 - 30 to give you 15. Again, the 45 coming from 11:45 and the 30, or 1/2, coming from the four and a half hours before hand.

In the end, you'll get 7:15. Since the starting time was in the AM, and we are going back in time 4 1/2 hours, it will still be AM. So we add AM onto the end of the 7:15 to get your answer.

Hope this helps :)

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Which of the following statements about f(x) is true

kap26 [50]

Answer is C I hope it helps

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3 years ago

Calculate f(x) for the given domain values.

Maksim231197 [3]

Answer:

See explanation

Step-by-step explanation:

1. The given function is

$f(x) = - 3x$

The domain values are: x=0, 2, -1, 4, -2

When x=0

$f(0) = - 3 \times 0 = 0$

When x=2,

$f(x) = - 3 \times 2 = - 6$

When x=-1

$f(x) = - 3 \times - 1 = 3$

When x=4

$f(4) = - 3 \times 4 = - 12$

When x=-2

$f( - 2) = - 3 \times - 2 = 6$

2. The given function is

$f(x) = \frac{1}{3} x$

When x=3,

$f(3) = \frac{1}{3} \times 3 = 1$

Similarly,

$f( - 3) = \frac{1}{3} \times - 3 = - 1$

$f(300) = \frac{1}{3} \times 300 = 100$

$f( - 180) = \frac{1}{3} \times - 180 = - 60$

$f(99) = \frac{1}{3} \times 99 = 33$

8 0

3 years ago

3/5 + 1/4 = what is it

sukhopar [10]

3*4 + 1*5 / 5*4=
12+5/20=
17/20

3 0

3 years ago

Read 2 more answers

URGENT PLEASE I AM TIMED URGENT SOLVE THE PROBLEM AND PLEASE, PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER, GIVE DETAIL'S I WILL MARK

Neko [114]

I'm pretty sure you just multiply the 1 1/4 by 3 because if 1 1/4 makes 10 muffins you need to make 3 more dozens so 1 1/4 times 3 equals 3.75

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3 years ago

The scores on a psychology exam were normally distributed with a mean of 60 and a standard deviation of 10 . A failing grade on

tensa zangetsu [6.8K]

Answer:

The cutoff for a failing score was 40,

Approximately 2.3% of the students failed.

Step-by-step explanation:

Given,

Mean, $\mu=60$

Standard deviation, $\sigma=10$

Let x represents the cutoff for a failing score,

Thus, according to the question,

$\frac{x-\mu}{\sigma}=-2$

$\frac{x-60}{10}=-2$

$x-60=-20$

$x=-20+60$

$x=40$

Thus, the cutoff for a failing score is 40,

∵ P(<-2) = 0.02275 = 2.275 % ≈ 2.3 %

Hence, Approximately 2.3 % of the students failed. 

7 0

3 years ago