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lions [1.4K]
3 years ago
11

Answerrr jsjsjjsjsjsjsjsjsjsjjsjsjsjsjs

Mathematics
1 answer:
vredina [299]3 years ago
7 0

\dfrac{ \sqrt{27} + \sqrt{75} }{\sqrt{48}} = \dfrac{ \sqrt{9 \times 3} + \sqrt{25 \times 3}}{\sqrt{16 \times 3}} = \dfrac{3 \sqrt{3} + 5 \sqrt{3}}{4 \sqrt{3}} = \dfrac{8 \sqrt{3}}{4 \sqrt{3}} = 2



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Jane took a train traveling at an average speed of 60 mph from Boston, MA to Washington, D.C. The trip took 8 hours. On her way
Trava [24]

Answer:

6.4 minutes

Step-by-step explanation:

The question gave us the following details:

Average speed = 60mph

Time spent on trip = 8 hours

Average speed of express train on way back = 75mph

T = distance/speed

D = distance

V = speed

T = d/v

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d = 60 x 8

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Such that

480/75

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Solve the literal equation for x: g= 4x+5xy
Andreas93 [3]

The literal equation for x is \frac{g}{4+5y} given that g= 4x+5xy

The subject of a formula is a way of representing a variable in terms of other variables.

Given the equation

g= 4x+5xy

Factor out the common variable x

g= x(4+5y)

Divide both sides by 4+5y

\frac{g}{4+5y} =\frac{x(4+5y)}{4+5y} \\\frac{g}{4+5y} = x\\Swap\\x = \frac{g}{4+5y}

This shows that the literal equation for x is \frac{g}{4+5y}

Learn more here: brainly.com/question/21140562

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2 years ago
For each correlation coefficient below, calculate what proportion of variance is shared by the two correlated variables:
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Answer:

A. 0.0625

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Step-by-step explanation:

The proportion of variance is shared by the two correlated variables is given as the r².

Therefore,

For A. r = 0.25

Proportion of variance is shared by the two correlated variables = 0.25²

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For B. r = 0.33

Proportion of variance is shared by the two correlated variables = 0.33²

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Proportion of variance is shared by the two correlated variables = 0.90²

= 0.81

For D. r = 0.14

Proportion of variance is shared by the two correlated variables = 0.14²

= 0.0196

4 0
3 years ago
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