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3 years ago

I GIVE BRAINLILSTTTT

Mathematics

2 answers:

cricket20 [7]3 years ago

8 0

Answer:

The answer is H please brainleist :) have a good day!

Step-by-step explanation:

soldi70 [24.7K]3 years ago

7 0

Answer:The most specific answer is H if you need explanation tell me

Step-by-step explanation:

You might be interested in

Which expression can be used to find the difference of the polynomials?(10m-6)-(7m-4)

murzikaleks [220]

Answer:

dont you already have it

7 0

3 years ago

If the cost, C(x), for manufacturing x units of a certain product is given by

Diano4ka-milaya [45]

Answer:

99 units.

Step-by-step explanation:

The cost function for manufacturing x units of a certain product is:

$C(x)=x^2-15x+34$

We want to find the number of units manufactured at a cost of $8350. Therefore:

$8350=x^2-15x+34$

Subtract 8350 from both sides:

$x^2-15x-8316=0$

This equation can be a bit difficult to factor, if even possible, so we can use the quadratic formula:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

In this case, a = 1, b = -15, and c = -8316. Thus:

$\displaystyle x=\frac{-(-15)\pm\sqrt{(-15)^2-4(1)(-8316)}}{2(1)}$

Simplify:

$\displaystyle x=\frac{15\pm\sqrt{33489}}{2}$

Evaluate:

$\displaystyle x=\frac{15\pm183}{2}$

Therefore, our solutions are:

$\displaystyle x=\frac{15+183}{2}=99\text{ and } x=\frac{15-183}{2}=-84$

We cannot produce negative items, so we can ignore the second answer.

Therefore, for a cost of $8350, 99 items are being produced.

5 0

3 years ago

An article is bought for Rs200 & sold for Rs250,what is the profit percentage.

Yuki888 [10]

(200/250)×100 = 80%

100 - 80 = 20%

hope it helps...!!! 

4 0

2 years ago

Read 2 more answers

Two numbers are in the ratio 3:2, if the smaller number is 10. what is the bigger number?

boyakko [2]

Answer:

Step-by-step explanation:

I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me..

3 0

3 years ago

A potato chip manufacturer has found that in the past the standard deviation of bag weight has been 0.2 ounce. They want to test

Brut [27]

Answer:

Null Hypothesis: $\sigma=0.2$

Alternative hypothesis: $\sigma \neq 0.2$ (Changes on the deviation)

Step-by-step explanation:

s represent the sample standard deviation

$\sigma$ represent the population standard deviation (variable of interest)

$\sigma_o =0.2$ represent the value that we want to test

n represent the sample size

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Based on this the system of hypothesis should be:

Null Hypothesis: $\sigma=0.2$

Alternative hypothesis: $\sigma \neq 0.2$ (Changes on the deviation)

In order to test these system of hypothesis we need to select a significance level $\alpha$ , then we need to calculate an statistic given by this formula.

$\chi^2 =\frac{(n-1)s^2}{\sigma^2_o}$

Then we need to calculate the degrees of freedom for the statistic on this case

$df=n-1$

And after this we need to calculate the pvalue based on the significance, the alternative hypothesis and the statistic calculated.

If the $p_v$ we reject the null hypothesis

If the $p_v >\alpha$ we FAIL reject the null hypothesis

3 0

3 years ago