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adelina 88 [10]
3 years ago
7

13) 6 batteries cost 13 dollars​

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

<h2>$2.17 per battery</h2>

Step-by-step explanation:

RATE: 6:13

A unit rate is a rate with 1 in the denominator. If you have a rate, such as price per some number of items, and the quantity in the denominator is not 1, you can calculate unit rate by dividing each term by the lower number to make it 1.

Divide 13 by 6

$2.17 a battery

UNIT RATE: $2.17:1

I'm always happy to help :)

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What is the value of the digit 4 in the number 84,230?
krok68 [10]
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mamaluj [8]

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Step-by-step explanation:

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For the right triangles below, find the exact values of the side lengths b and d.
Ivanshal [37]

Answer:

Step-by-step explanation:

The question lacks the required diagram. Find the diagram attached below;

According to the first triangle, taking 30° as the reference angle, the opposite side of the triangle will be 5 and the adjacent will be the unknown side "b"

According to SOH, CAH, TOA;

tanθ = opposite/adjacent (using TOA)

Given;

θ = 30°, opposite = 5 and adjacent = b

tan30° = 5/b

b = 5/tan30°

b = 5/(1/√3)

b = 5*√3/1

b = 5√3

According to the 45° triangle, the opposite side of the triangle will be d and the hypotenuse will be 7

Using SOH;

sinθ = opposite/hypotenuse

Given;

θ = 45°, opposite = d and adjacent = 7

sin45° = d/7

d = 7sin45°

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3 years ago
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kipiarov [429]

Answer:

<h2>Factor perfect squares out of the square root until there are no more perfect squares inside.</h2>

Step-by-step explanation:

<h2>Begin by working inside the square root itself. You can manipulate the interior of the square root as much as you'd like so long as you don't violate any other rules of algebra. </h2>

<h2>√160=√16⋅10</h2>

<h2>Because 16 is a perfect square, we can pull it out of the square root as a 4.</h2>

<h2>That will simplify down to 4√10</h2>

<h2>because there are no additional perfect square factors in 10, the resultant is simplified.</h2>

<h2>Therefore, √160 simplifies to 4√10</h2>
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