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2 years ago

Factor the polynomial 28c - 12

Mathematics

2 answers:

Rudiy272 years ago

7 0

Answer:

28c-12 and it would be 4(7e-3 and i did not copy from googe i did this on my own

Step-by-step explanation:

Leto [7]2 years ago

6 0

Answer:

4(7c - 3)

$\:$

Step-by-step explanation:

So, here we are to factor the polynomial :

$\\ \longrightarrow \sf \qquad28c - 12\\ \\$

$\longrightarrow \sf \qquad4(7c - 3)\\ \\$

Some points to know :

Factorisation is the reverse process of multiplucation.

The Factorisation is the process of finding two or more expressions such that their product is the given expression

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Question 4 (1 point)

Aleksandr-060686 [28]

2:3

6 ÷ 2 = $3 (cost of 1 pack of butter cookies)

3 x 3 = 9 (cost of 3 packs of butter cookies)

17 - 9 = 8 (cost of 4 packs of chocolate cookies)

8 ÷ 4 = 2 (cost of one pack of chocolate cookies)

5 0

3 years ago

PLEASE I NEED TO FINISH THIS!!

PtichkaEL [24]

DE CHORD
Ab diameter
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8 0

3 years ago

By law, an industrial plant can discharge not more than 500 gallons of waste water per hour, on the average, into a neighboring

Alisiya [41]

Answer:

We conclude that not more than 500 gallons of wastewater per hour, on average, is discharged into a neighboring lake.

Step-by-step explanation:

We are given that an industrial plant can discharge not more than 500 gallons of wastewater per hour, on average, into a neighboring lake.

Four one-hour periods are selected randomly over a period of one week. The following are observed:

1384, 683, 1534, 405

Let $\mu$ = population average gallons of wastewater discharged per hour

So, Null Hypothesis, $H_0$ : $\mu \leq$ 500 gallons {means that not more than 500 gallons of wastewater per hour, on the average, is discharged into a neighboring lake}

Alternate Hypothesis, $H_A$ : $\mu$ > 500 gallons {means that more than 500 gallons of wastewater per hour, on the average, is discharged into a neighboring lake}

The test statistics that will be used here is One-sample t-test statistics because we don't know about population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean = $\frac{\sum X}{n}$ = 1001.5 gallons

s = sample standard deviation = $\sqrt{\frac{\sum (X - \bar X)^{2} }{n-1} }$ = 543.79

n = sample of periods = 4

So, the test statistics = $\frac{1001.5-500}{\frac{543.79}{\sqrt{4} } }$ ~ $t_3$

= 1.844

The value of t-test statistics is 1.844.

Since in the question we are not given with the level of significance so we assume it to be 5%. Now, at 0.05 level of significance, the t table gives a critical value of 2.353 at 3 degrees of freedom for the right-tailed test.

Since the value of our test statistics is less than the critical value of z as 1.844 < 2.353, so we have insufficient evidence to reject our null hypothesis as it will fall in the rejection region.

Therefore, we conclude that not more than 500 gallons of wastewater per hour, on average, is discharged into a neighboring lake.

4 0

3 years ago

Dont mind the answer that I picked on accident and pls dont send no PDF or a image to download

Leto [7]

Answer:

I guess that X measures 50° because X and 50 are vertically opposite angles...

7 0

2 years ago

Which statements are true? select two options. δabc is-congruent-to δbxc δaxc ~ δcxb δbcx is-congruent-to δacx δacb ~ δaxc δcxa

aliina [53]

Based on the properties of similar triangles, the two true statements are:

ΔAXC ≅ ΔCXB.
ΔACB ≅ ΔAXC.

<h3>The properties of similar triangles.</h3>

In Mathematics, two (2) triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.

Based on the properties of similar triangles, we have the following points:

∠A in ΔAXC matches ∠A in ΔABC and ∠C in ΔCXB.

∠C in ΔAXC matches ∠B in ΔABC and ∠B in ΔCXB.

∠X in ΔAXC matches ∠C in ΔABC and ∠X in ΔCXB.

In this scenario, we can can logically deduce that the two true statements are:

ΔAXC is congruent to ΔCXB (ΔAXC ≅ ΔCXB).
ΔACB is congruent to ΔAXC (ΔACB ≅ ΔAXC).

Read more on similar triangles here: brainly.com/question/7411945

#SPJ1

4 0

2 years ago