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jeka57 [31]
3 years ago
14

Find the quotient of 5/31 divided by 15/23. Reduce your answer to the lowest fraction.

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
6 0

the answer is 23/93

i hope this helps and sorry about this extra stuff i needed 20 things so i could add answer

Vlad1618 [11]3 years ago
5 0
First a reciprocal is a fraction but flipped over. So so if we have x/y, it's recipricam is y/x.

this helps to know when you understand that dividing by a fraction is the same thing as multiplying by that fractions reciprocal.

So ifnwenhave b/c and divide it by x/y we can also say b/c multiplied by y/x. it isnthensame thing.

now to use this for your problem.

5/31 divided by 15/23
or
5/31 times 23/15

all we have to do is multiple the 2 numerator and denominator and get:
115/465

now to reduce. divide both by 5 first
23/91

both numbers are prime so that would be answer
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a group of astronauts launched a model rocket from a platform. Its flight path is modeled by h= -4t^2+24t+13 where h is the heig
Eddi Din [679]

Answer:

6.5 seconds

Step-by-step explanation:

Keep in mind that when h=0, this is the same height for both when the model rocket takes off and lands, so when the rocket lands, time is positive. Thus:

h=-4t^2+24t+13\\\\0=-4t^2+24t+13\\\\t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\t=\frac{-24\pm\sqrt{24^2-4(-4)(13)}}{2(-4)}\\ \\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{784}}{-8}\\\\t=\frac{-24\pm28}{-8}\\\\t=\frac{-24-28}{-8}\\ \\t=\frac{-52}{-8}\\ \\t=\frac{52}{8}\\\\t=6.5

So, the amount of seconds that the model rocket stayed above the ground since it left the platform is 6.5 seconds

5 0
2 years ago
Read 2 more answers
A ladder leans against the side of a house. The angle of elevation of the ladder is 62 degrees and the top of the ladder is 14 f
marysya [2.9K]

Answer:

7.4 feets

Step-by-step explanation:

Distance from bottom of ladder to side of the house = d

θ = 62 ; height, h = 14

Using trigonometry :

Tan θ = opposite / Adjacent

Opposite = height ; adjacent = d

Tan 62° = 14 / d

1.8807264 * h = 14

d = 14 / 1.8807264

d = 7.44

5 0
3 years ago
Michael planted 620 tomato plants in 20 rows. Each row has the same number of tomato plants. Circle each equation that can be us
Natali5045456 [20]
The only answer would be A because if you divide it by 20 it should divide it equally i tried the other ones and they didnt work
8 0
3 years ago
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What is the slope of the line that passes through the points<br> (-16, -5) &amp; (-15, -7)
In-s [12.5K]

Answer:

<u>slope=-2</u>

Step-by-step explanation:

Okay so we just take those coordinates and apply them to this formula:        

y2-y1/x2-1

then simplify to get -2

if you want me to elaborate just say the word

8 0
2 years ago
NOTE -- THIS QUESTION HAS BEEN ANSWERED ALREADY!!!
DanielleElmas [232]

Answer:

The cubic polynomial is: x³ - x² - 6x.

Step-by-step explanation:

Given the degree and the roots of the polynomial we can find it.

An n - degree polynomial has n roots.

Here, given that the degree of the polynomial is 3 and three roots are given. Also, if (x - a) is a factor of a polynomial then x = a is a root of the polynomial. The converse is also true.

Since, the roots of the polynomial are given to -2, 0, 3 then it should have had the following factors.

(x + 2)(x - 0)(x - 3) = 0

Multiplying them we get:

⇒ $ (x^2 + 2x)(x - 3) $

$ = x^3 - 3x^2 + 2x^2 - 6x $

$ = x^3 - x^2 - 6x $ which is the required cubic polynomial.

Hence, the answer.

4 0
3 years ago
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