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Finger [1]
3 years ago
11

Please help !!! I’ll mark you as brainliest if correct

Mathematics
1 answer:
kozerog [31]3 years ago
5 0

Answer:

10 seconds

Step-by-step explanation:

we are given the height (s) which is 1600ft. and the formula—where t is time in seconds— t= 1/4\sqrt{s}, so we can plug 1600ft in for s and solve:

t= 1/4\sqrt{1600}

t= 1/4(40)

t= 10 seconds

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What is the product 3x5(2x2+4x+1)
lesya692 [45]

Answer:

6x^7+12x^6+3x^5

Step-by-step explanation:

The given expression is:

3x^5(2x^2+4x+1)

We expand the parenthesis using the distributive property to obtain;

3x^5(2x^2)+3x^5(4x)+3x^5(1)

Recall that;

a^m\imes a^n=a^{m+n}

We apply this property and multiply out the constant terms to obtain;

6x^7+12x^6+3x^5

3 0
3 years ago
Round 4.432 to the nearest tenth.
Slav-nsk [51]

Answer:

4.4

Step-by-step explanation:

The tenth place in this number is 4.<u>4</u>32, so that should be the last digit.

Now, we need to know wether to round up or down. That is determined by the digit that comes after it. <em>If that digit, here it is the hundredth, is 0-4, it rounds down, if it is 5-9, it rounds up</em>. Our next digit is <em>3</em>, which goes into the first category, <em>so the number rounds down</em>, so the tenth remains the same. That leaves us with 4.4.

5 0
3 years ago
Read 2 more answers
The length of a rectangle is 3 less than 2 times the width if the perimeter is 60 what is the length
Semenov [28]
P=2w+(2w-3)
60=4w-3
63=4w
15.75=w

l=2w-3
l=(2×15.75)-3
l=31.5-3
l=28.5

This answer doesn't add up so if you meant the COMBINED width then:

P=w+(2w-3)
60=3w-3
63=3w
21=w

l=2(21)-3
l=42-3
l=39

(This answer checks out so this is probably what you meant hope I helped)
7 0
3 years ago
"10 less 2 times a number"<br> O 10r - 2<br> 0 2r - 10<br> O 2 - 10<br> O 10 - 2r<br> 10 - 2
4vir4ik [10]

the answer to the question is 2r-10

4 0
3 years ago
Read 2 more answers
(03.06 MC) The first four terms of a sequence are shown below: 8, 5, 2, −1 Which of the following functions best defines this se
vazorg [7]

Answer:

the last one. f(n) - 3; for n ≥ 1

4 0
3 years ago
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