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3 years ago

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Mathematics

2 answers:

Musya8 [376]3 years ago

8 0

Answer: 1/4, 4/7, 5/8

Step-by-step explanation: There are three ways:

1. Convert each to a decimal:

1/4 = 0.25

4/7 = 0.571

5/8 = 0.625

2. Convert to a common denominator:

It looks like we can multiply each by a whole number that will result in a denominator of 56:

1/4 *(14/14) = 14/56

4/7*(7/7) = 35/56

5/8 *(8/8) = 32/56

Now they can be directly compared to get the answer.

3. Estimate the values.

5/8 is clearly larger than 1/4. 4/7 is somewhere in between. Therefore, 1/4, 4/7, 5/8

Marianna [84]3 years ago

3 0

Answer:

Order from Least to Greatest

1/4 < 4/7 < 5/8

Step-by-step explanation:

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Expand and simply x(2x + 3) + 5( x - 7)

zalisa [80]

Answer:

2x² + 8x - 35

Step-by-step explanation:

x(2x + 3) + 5(x - 7) ← distribute both parenthesis

= 2x² + 3x + 5x - 35 ← collect like terms

= 2x² + 8x - 35

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3 years ago

What is true about 3 squared x 4 squared

BARSIC [14]

Hello there, and thank you for posting your question here on brainly.

Short answer: C. Product of 2 rational numbers = a rational number.

Why?

The numbers are both rational because squared is a result of a number multiplied by itself. Like (3^2 = 9). It turns out as a rational number because you're multiplying by two positive numbers, which always turns out as a rational number. (3^2 * 4^2 ==> 144) [3^2 = 9] [4^2 = 16]

Hope this helped you! ♥

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3 years ago

Death Valley has an elevation of -282 feet related to sea level plane how to use absolute value to describe the elevation of Dea

mart [117]

The absolute value is the number disregarding (ignoring) the positive or negative sign. So the absolute value of -282 is l 282 l :)

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3 years ago

Please help!! Find the value of x and the length of each side

Anvisha [2.4K]

Answer:

Step-by-step explanation:

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3 years ago

What is a radius of a circle given by the equation x²-2x+8y-47=0

Zolol [24]

First, we are going to rewrite it as a parabola equation.
Rewrite.
$8y=-x^2+2x+47$
Divide by 8.
$y=-\frac{x^2}{8}+\frac{x}{4}+\frac{47}{8}$
Factor out coefficient.
$y=-\frac{1}{8}\left(x^2-2x\right)+\frac{47}{8}$
Then, we are going to convert x into square form.
$y=-\frac{1}{8}\left(x^2-2x+1\right)+\frac{1}{8}\cdot \:1+\frac{47}{8}$
Convert the whole expression into square form.
$y=-\frac{1}{8}\left(x-1\right)^2+\frac{1}{8}\cdot \:1+\frac{47}{8}$
Simplify.
$y=-\frac{1}{8}\left(x-1\right)^2+6$
Subtract 6 from both sides.
$y-6=-\frac{1}{8}\left(x-1\right)^2$
Divide by coefficient.
$-8\left(y-6\right)=\left(x-1\right)^2$
Rewrite in standard form.
$4\left(-2\right)\left(y-6\right)=\left(x-1\right)^2$

The radius of the circle will be -2. Also, no matter what the sign says, the radius has to always be positive.
Have a nice day! :)

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3 years ago

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