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noname [10]
3 years ago
13

Why are fractions, decimals, and percentages considered rational numbers?

Mathematics
1 answer:
leva [86]3 years ago
8 0

Answer:

A ratio is a Fraction

Step-by-step explanation:

A ratio is a fraction it looks like this 6:7 or 6/7 or 6 to 7

Also I just did this for points.

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Factor -7x^3+21x^2+3x-9 by grouping. what is the resulting expression?
Daniel [21]

Answer:

c) (3-7x^2)(x-3)

Step-by-step explanation:

-7x^3+21x^2+3x-9

Factor out a -7x^2 from the first two terms and a 3 from the last two terms

-7x^2 (x -3) +3(x-3)

Now factor out (x-3)

(x-3) (-7x^2+3)

Rearranging)

(x-3) (3-7x^2)

8 0
3 years ago
A statue is mounted on top of a 16 foot hill. From the base of the hill to where you are standing is 77 feet and the statue subt
DanielleElmas [232]

Consider right triangle with vertices B - base of the hill, S - top of the statue and Y - you. In this triangle angle B is right and angle Y is 13.2°. If h is a height of the statue, then the legs YB and BS have lengths 77 ft and 16+h ft.

You have lengths of two legs and measure of one acute angle, then you can use tangent to find h:

\tan 13.2^{\circ}=\dfrac{\text{opposite leg}}{\text{adjacent leg}} =\dfrac{16+h}{77}, \\ \\ 0.2345=\dfrac{16+h}{77},\\  \\ 16+h=0.2345\cdot 77=18.0565,\\ h=18.0565-16=2.0565 ft.

Answer: the height of the statue is 2.0565 ft.

8 0
2 years ago
Read 2 more answers
PLEASE HELP!!<br><br> Solve the equation. Please show your math work step by step. 5x −14=−34
MrMuchimi

Hey

The Answer is -4x


Heres the Step by Step work


You add 14 to each side because it is negative, so

5x-14=-34

    +14|+14

and you will end up with

5x=-20

Divide 5 on each side, so

5x=-20

/5x | /5x


-20 / 5x =

x=-4

 or

-4x


mark branliest plz

8 0
3 years ago
The product of 16 and 4 less than a number is 208. Find the number.
svlad2 [7]
This is a word problem signifying an algebraic expression.

Translating this to mathematics:

16x - 4 = 208

add 4 to both sides.

16x = 212 

divide 16 to both sides. 

x = \frac{212}{16} 

this is:

x = 13.25 




5 0
3 years ago
This is the picture to follow by. Can you help me with these two questions? I'll mark you brainliest! Thank you!
mihalych1998 [28]
For the first one it’s b and I’m sorry but I’m not sure about the second
8 0
2 years ago
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