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3 years ago

Need an answer thanks

Mathematics

1 answer:

MatroZZZ [7]3 years ago

5 0

Answer:

CE = 105

Step-by-step explanation:

CE = CD + DE , hence

6x = 4x + 8 + 27 ( subtract 4x from both sides )

2x = 35 ( divide both sides by 2 )

x = 17.5

⇒ CE = 6 × 17.5 = 105

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What is 27+3÷ 3 +4-1+72.4-34.24+6-4+75÷5 <br> Answer this fast please!

Dimas [21]

Answer:

86.16

Step-by-step explanation:

27+3÷ 3 +4-1+72.4-34.24+6-4+75÷5

PEMDAS

Multiply and divide first

3/3 is 1 and 75/5 = 15

Replace these into the equation

27+1 +4-1+72.4-34.24+6-4+15

Then add and subtract from left to right

31 +72.4-34.24+6-4+15

69.16+6-4+15

86.16

7 0

3 years ago

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How do you solve for 3x-3=9

Brrunno [24]

Answer:

x=4

Step-by-step explanation:

3x-3=9

+3=+3

3x=12

divide both sides by 3

leaving x by itself

12/3=4

x=4

5 0

3 years ago

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Please help me i cannot understand these Questions

elixir [45]

Where are the questions

6 0

3 years ago

Find the value of x in the triangle shown below

mezya [45]

Answer:

√27

Step-by-step explanation:

use the pythagorean theorem

3²+x²=6²

9+x²=36

x²=27

√x²=√27

x=√27

7 0

3 years ago

The playing life of a Sunshine radio is normally distributed with mean LaTeX: \muμ = 600 hours and standard deviation LaTeX: \si

Hitman42 [59]

Answer:

The probability that a radio selected at random will last from 600 to 700 hours is 0.3413

Step-by-step explanation:

The playing life of a Sunshine radio is normally distributed

Mean = $\mu = 600 hours$

Standard deviation = $\sigma = 100 hours$

We are supposed to find the probability that a radio selected at random will last from 600 to 700 hours i.e.P(600<x<700)

Formula: $Z= \frac{x-\mu}{\sigma}$

At x = 600

$Z= \frac{600-600}{100}$

Z=0

$P(X$

At x = 700

$Z= \frac{700-600}{100}$

Z=1

$P(X$

$P(600$

Hence the probability that a radio selected at random will last from 600 to 700 hours is 0.3413

8 0

3 years ago