All categories

3 years ago

What is the common difference of the arithmetic sequence -7,-4x,-x,2x,5x

Mathematics

1 answer:

Usimov [2.4K]3 years ago

3 0

Answer:

-7 — -4=-3

so the common diff.

-3.

Step-by-step explanation:

hopr helps

You might be interested in

HELP PLEASE HURRY... 65 POINTS

stepan [7]

B is the answer to your question I remember putting that in my other class

3 0

3 years ago

Read 2 more answers

0.134 bar in the form of p/q

kenny6666 [7]

Answer:

67/500

Step-by-step explanation:

we have

The decimal number 0.134

Convert to a fraction number

Multiply by (1,000/1,000) the number

0.134*(1,000/1,000)=134/1,000

Simplify

Divide by 2 both numerator and denominator

67/500

6 0

3 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

8 0

3 years ago

Travis bought a pair of shoes that originally cost $74.99 the shoes were on sale for 20% off and sales tax was 7% approximately

DedPeter [7]

The answer is astro world, because he sent people to see Juice World instead:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

0.04 is 10 times as great as which decimal?

noname [10]

Answer:

04 is ten times as great as which decimal. 0.04 = 10 times decimal number . 0.04 = 10 * x. On dividing both sides by 10. x = . x = 0.004. Therefore, Decimal number 0.004

Step-by-step explanation:

Hope this helps :))

7 0

3 years ago