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3 years ago

3 - (4m + 1) > 5m - 25

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

3 0

Step-by-step explanation:

3 - (4m + 1) > 5m - 25

3 - 4m - 1> 5m - 25

3 - 1 +25 > 4m + 5m

27 > 9m

m> 27/9

m> 3

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1/2 x + 2 = 1/6 x - 1 =

aksik [14]

Step-by-step explanation:

1/2x+2−1/6x=1/6x−1−1/6x

1/3x+2=−1

1/3x+2−2=−1−2

1/3x=−3

3*(1/3x)=(3)*(−3)

x=−9 <- ANSWER

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3 years ago

Use break apart method to find the product 26x5

iogann1982 [59]

26×5

20 6 = 26

×5 ×5

—— ——

100 + 30

130

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2 years ago

Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8

drek231 [11]

Answer:

95% Confidence interval: (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, $\bar{x}$ = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)$

(96.06,103.94) is the 95% confidence interval for the population mean test score.

8 0

3 years ago

at the metal-casting company where i work, i must set up a conveyor system to move castings from the furnace to the heat treatme

Harman [31]

Maximum time allowed = 7 deg. / 0.03 deg/s = 233.3 s
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3 years ago

A<br> 2x + 5<br> 3x - 2<br> B+<br> X = [? ]

WITCHER [35]

Answer: 7

Step-by-step explanation:

They are alternate interior angle

2x + 5 = 3x -2

2x = 3x -7

-x = -7

x = 7

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3 years ago