2 years ago

HELP Would i times them

Mathematics

2 answers:

Leto [7]2 years ago

8 0

Answer:

yeah you would

Step-by-step explanation:

Natalija [7]2 years ago

3 0

Yes you would times them

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A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a

erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

$H_0 : p=0.8\\H_a: p>0.80$

So we use z-test for one population proportion (right-tailed test)

According to this informaton, we defined that

$\alpha=0.05$

$z_c=1.64$ (critical value)

So our Rejection region is $R={z:z>1.64}$

$z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591$

Not rejection.

6 0

2 years ago

Subtract -1/2n - (-1/2n)

9966 [12]

Answer: 0
Explanation:
-1/2n -(-1/2n)
= -1/2n + 1/2n
= 0

8 0

3 years ago

PLEASE HELP FAST!!!

Rus_ich [418]

$\\ \sf\longmapsto 3s-5+2s+25=170$

$\\ \sf\longmapsto 5s+20=170$

$\\ \sf\longmapsto 5s=170-20$

$\\ \sf\longmapsto 5s=150$

$\\ \sf\longmapsto s=30$

m<GHZ=3(30)-5=90-5=85
m<ZHI=2(30)+25=60+25=85

4 0

2 years ago

Solve the formula d = rt for r. A. r = d - t B. r = t/d C. r = d/t D. r = dt

PIT_PIT [208]

The answer is C. r=d/t

8 0

2 years ago

Which postulate or theorem proves that these two triangles are congruent?

Alla [95]

AAS congruence theorem.

We know that <H is congruent to <F and <GJH is congruent to <JGF.

We also know that JG is congruent to JG, which gives us a side and two angles, so AAS would prove them congruent.

4 0

2 years ago

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