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3 years ago

BRAINLIEST IF RIGHT Which other expression has the same value as (-14) - (-8) ?

Mathematics

2 answers:

ratelena [41]3 years ago

8 0

Answer:

its -6 please give brainliyest

kolbaska11 [484]3 years ago

4 0

-14+-8 I think but dunno haven’t done those in a while

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Answer:

2.5

Step-by-step explanation:

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Each algorithm is applied to a group of 52 sample problems. The new algorithm completes the sample problems with a mean time of

dem82 [27]

Answer:

Therefore we fail to reject the Null hypothesis $H_0$

Because the is no sufficient evidence to support the claim of the alternative hypothesis $H_a$

Step-by-step explanation:

From the question we are told that

Sample size $n_1 =52$

Mean time 1 $\=x_1=24.04\ hours$

Mean time 2 $\=x_2=24.52\ hours$

Standard deviation $\partial _1=5.769$

Standard deviation $\partial _2=5.556$

Level of significance 0.05

The null hypothesis is $H_o: \mu_1=\mu_2$

Alternative hypothesis $H_a: \mu_1$

Generally the test statistics is mathematically represented as

$Z= \frac{\=x_1-\=x_2}{\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}}$

$Z= \frac{24.04-24.52}{\sqrt{\frac{5.769^2}{52}+\frac{5.5562^2}{52}}}$

$Z= -0.4321583379$

$Z= -0.43$

From Table the Z-critical value at $\alpha =0.05\ is\ -1.6449$

Therefore

Zcal> Zcritical

(-0.43)=(-1.645)

Generally we fail to reject the null hypothesis $H_0$ at $\alpha = 0.05$

Therefore we fail to reject the $H_0$

Because the is no sufficient evidence to support the claim of $H_a$

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3 years ago

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balandron [24]

Answer:

$ 208

Step-by-step explanation:

This problem can be solved in a very simple way and the hourly earnings of each product are calculated.

That is, its sale value for the time it costs to create it:

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$ 12 per hour.

For shorts: Each one is worth 13 and one is made per hour, therefore

$ 13 per hour

Which means that the most productive thing is to sell all shorts.

It can work 16 hours maximum, therefore it can make 16 shorts.

So:

13 * 16 = $ 208

And this would be the maximum value that can be obtained and complies with the restriction of at least 12 products but less than 24 products.

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