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3 years ago

What is d –10 – 2d + 7 = 8 + d – 10 – 3d

Mathematics

1 answer:

ladessa [460]3 years ago

4 0

Answer:

d = 1, so 1 - 10 - 2*1 + 7 = 8 + 1 - 10 - 3*1 is true!

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Joe says that x

irga5000 [103]

The equations x+5x=16
and x+5x+25=16
No, the equations are not equal. In order for an equation to be equal the equation x+5x=16 contains 25 less than the second equation.

6 0

3 years ago

If there are 21 values in a data set in order from smallest to largest, what is the first quartile of the data set?

jek_recluse [69]

I think the answer is B) The mean of the 5th and 6th values

4 0

4 years ago

Read 2 more answers

What is the decimal equivalent of the rational number 17/33

stira [4]

Answer:

0.51

Step-by-step explanation:

divide 17 by 33 and round to the nearest hundrenth

7 0

4 years ago

6m-2(7+3m)>5(2m-3)-m

Tpy6a [65]

Answer:

Therefore the value is

$m$

Step-by-step explanation:

Given:

$6m-2(7+3m)>5(2m-3)-m$ ....Given

Step 1. Applying Distributive Property A(B+C)=AB+AC we get

$6m-2\times7-2\times 3m>5\times 2m-5\times 3-m$

$6m-14-6m>10m-15-m\\-14>9m-15$

Step 2. Add 15 both the side

$-14+15>9m-15+15\\1>9m$

Step 3. Dividing both the side by 9

$\dfrac{1}{9}>\dfrac{9m}{9}\\\\\dfrac{1}{9}>m$

Therefore the value is

$m$

4 0

4 years ago

A process is normally distributed with a mean of 104 rotations per minute and a standard deviation of 8.2 rotations per minute.

Ilia_Sergeevich [38]

Answer:

Option B) In control as this one data point is not more than three standard deviations from the mean

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 104 rotations per minute

Standard Deviation, σ = 8.2 rotations per

We are given that the distribution of process is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

For x = 118

$z = \displaystyle\frac{118-104}{8.2} = 1.7073$

Thus, we could say that this data point lies within three standard deviations from the mean as:

$\mu - 3\sigma < x < \mu + 3\sigma\\104-3(8.2) < x < 104 + 3(8.2)\\79.4 < 118 < 128.6$

Thus, it could be said

Option B) In control as this one data point is not more than three standard deviations from the mean

6 0

4 years ago