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3 years ago

WILL GIVE BRAINLIEST

Mathematics

2 answers:

sergey [27]3 years ago

7 0

Answer:

Step-by-step explanation:

The reason being there is no pattern to it because the rest keep going up or down but a is all over the place.

Alenkinab [10]3 years ago

4 0

Answer:

Step-by-step explanation:

Hi,

Non-Linear scatterplots usually form a CURVED line and answer choice B is the only scatter plot that does that. If it's linear, it will often form a STRAIGHT line. Answer choice B has absolutely no kind of relationship and, therefore, is incorrect.

I hope this helps :)

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A high-performance composite flywheel rotor can spin anywhere between 30,000 and 100,000 revolutions per minute. What

Kobotan [32]

Answer:

Step-by-step explanation:

1 revolution will equal 360 degrees

Because of that 30,000 revolution would be 10,800,000 degrees

100,000 rev would equal 36,000,000 degrees

The range through which the composite flywheel rotates in one minute be denoted by ' F ' . (1.08 x 107)° F (3.6 x 107)°

4 0

3 years ago

What two integers have a product of -35 and a sum -2

vovangra [49]

-7 and 5. The product would be -35 and the sum -2.

Hope this helps

8 0

3 years ago

A researcher claims that the variation in the salaries of elementary school teachers is greater than the variation in the salari

guajiro [1.7K]

Answer:

The null hypothesis is $H_o : \sigma^2_1 = \sigma^2 _2$

The alternative hypothesis is $H_a : \sigma_1 ^2 > \sigma^2_2$

$F_{critical} = 1.8608$

$F = 2.9085$

The decision rule is

Reject the null hypothesis

There is sufficient evidence to support the researchers claim

Step-by-step explanation:

From the question we are told that

The first sample size is $n_1 = 30$

The sample variance for elementary school is $s^2_1 = 8324$

The second sample size is $n_2 = 30$

The sample variance for the secondary school is $s^2_2 = 2862$

The significance level is $\alpha = 0.05$

The null hypothesis is $H_o : \sigma^2_1 = \sigma^2 _2$

The alternative hypothesis is $H_a : \sigma_1 ^2 > \sigma^2_2$

Generally from the F statistics table the critical value of $\alpha = 0.05$ at first and second degree of freedom $df_1 = n_1 - 1 = 30 - 1 = 29$ and $df_2 = n_2 - 1 = 30 - 1 = 29$ is

$F_{critical} = 1.8608$

Generally the test statistics is mathematically represented as

$F = \frac{s_1^2 }{s_2^2}$

=> $F = \frac{8324 }{2862}$

=> $F = 2.9085$

Generally from the value obtained we see that $F > F_{critical }$ Hence

The decision rule is

Reject the null hypothesis

The conclusion is

There is sufficient evidence to support the researchers claim

4 0

3 years ago

What are the coordinates of point A? A. (5,4) B. (4,5) C. (4,6) D. (6,4)

erica [24]

The answer is A . (5,4)

3 0

2 years ago

Read 2 more answers

I'm completely lost. I don't know what to do at all.

timama [110]

If you are given 2 points, it's easy to find the slope.
(8, -6)
(3, -2)

slope = (y₂ - y₁) / (x₂ - x₁)
slope = (-2 + 6) / (3 - 8)
slope = (4) / (-5)
m = 4/-5 or -5/4 or

3 0

3 years ago