3 years ago

What are five fractions between -8/10 and -4/5

Mathematics

1 answer:

DiKsa [7]3 years ago

6 0

Their are no fractions between those because they are the same number

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A single gram of a certain metallic substance has 0.52 g of copper and 0.25 g of zinc the remaining portion of the substance is

andrezito [222]

Ben's estimate gives 7 g of nickel; the actual amount is 8.03 g.

In 1 g of the substance, there is 0.52 g of copper and 0.25 g of zinc; this gives
0.52+0.25 = 0.77 g of the substance.

The remaining part of the substance is nickel:
1-0.77 = 0.23 g of nickel.

Using Ben's estimate, 0.2 g of nickel per gram of substance, we have
0.2(35) = 7 g of nickel in 35 g of the substance.

The actual amount is 0.23(35) = 8.03 g of nickel in 35 g of the substance.

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3 years ago

-3-2(2x-3) simplified

ddd [48]

First Distribute, then subtract and you’ll get -4x+3

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3 years ago

Find sin θ if θ is in Quadrant III and tan θ = . 0.958

Leokris [45]

Use the following identities:
$sec^2 = 1 + tan^2 \\ \\ sec = \frac{1}{cos} \\ \\ sin^2 = 1 - cos^2$
Also because the angle is in quadrant 3, sin must be negative.
Therefore
$sin = - \sqrt{1 - \frac{1}{1 + tan^2}}$
Subbing in tan = 0.958
$sin \theta = -0.69178$

7 0

2 years ago

I don't get how to work out the repeating problems, could someone explain please?

barxatty [35]

Detecting...

Your answer would be:

$0.025 = 1/40 

0.025/1 * 1000/1000 = 25/1000

25 \div 25 / 1000 \div 25 = 1/40

1/40 is your answer.$

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3 years ago

Kelly is making a triangular chicken coop as shown in the diagram below. She is going to fence in the area for her chickens.

amm1812

Answer: the answer is 48 feet

Step-by-step explanation: 24+ 12+ 12=48

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3 years ago