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-Dominant- [34]
3 years ago
11

Please help me with this

Mathematics
1 answer:
polet [3.4K]3 years ago
5 0
1 , 5
5

7
15

i think this is right
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a boat travels 252 miles in 13 hours (with a constant speed) How much time will it take traveling 279 miles?
Ilya [14]

Answer: 14.4 h

The speed is : v=\frac{d}{t} =\frac{252}{13} =19.46 miles/h\\

The time it takes to travel 279 miles :

t'=\frac{d}{v} =\frac{279}{19.46} =14.4 hours

4 0
3 years ago
Use the function below to find F(1).<br> F(t) = 2•1/2^3t
stiv31 [10]

Answer:

D) 1/4

Step-by-step explanation:

To solve this, first lets figure out what this variable is. We know we must multiply by t. Well, looking at it, we know that t is one. So lets plug that in.

2*1/2^3(1)

Now we need to figure out what the exponent is that 2 will be raised to. To find that, find out what 3 times one is.

2*1/2^3

Now we need to solve the exponent.

2*1/8

Remember, 2 cubed is eight.

Now we need to find out what 2*1/8 is. To solve this more easily, I am going to turn two into a fraction. This will give us 2/1*1/8. Now we cross multiply, multiplying the numerators by the numerators, and the denominators by the denominators. Remember, the numerator is the top number, and the denominator is the bottom number.

If we do that, we get:

2/8

If we simplify it, we get 1/4. So the asnwer is D) 1/4

6 0
2 years ago
9th grade- Point slope of line. Please explain how to do this, I got it wrong. I need an explanation cause I haven’t done it in
Andrei [34K]

Answer:

The answer would be C

Step-by-step explanation:

You were going in the right direction but the problem was that you needed to subtract and not add.  The formula should be y-y1 / x-x1 iirc. Hope this helped.

4 0
2 years ago
HELP PLEASE!! EXTRA POINTS AND BRAINLIEST WILL BE GIVEN!!
mezya [45]

Answer:

0.02651

Step-by-step explanation:

P(all 5 are boys) =

\frac{7}{12}  \times  \frac{6}{11} \times  \frac{5}{10}   \times  \frac{4}{9}  \times  \frac{3}{8}

= 0.02651 ( wow low)

3 0
3 years ago
35xy/7y simplified plz just simple fied it ;-; rip me i hate math mevr udnerstood it
ch4aika [34]
Its 7xy/1y I understand it its pretty easy
5 0
3 years ago
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