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Xelga [282]
3 years ago
7

Please help help ASAP ASAP

Mathematics
1 answer:
Elenna [48]3 years ago
6 0

Answer:

Step-by-step explanation:

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What is 200 plus 200 plus 1,000 plus 6,000 equal to?
Elanso [62]

Answer:

200+200+1,000+6,000 = 7,400 - 1,200 = 6,200

6,000+200=6,200

Step-by-step explanation:

so 200 plus 200 equal to 400 plus 1,000 equal to 1,400 plus 6,000 equal to 7,400 and then 7,400 subtract by 1,200 equal to 6,200.

and 6,000 plus 200 equal to 6,200.

Hope this helps! :)

3 0
3 years ago
Read 2 more answers
Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The
sattari [20]

Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

The test is:_____.

c. two-tailed

The test statistic is:______p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

The p-value is:_____. 0.09887

Based on this we:_____.

B. Reject the null hypothesis.

Step-by-step explanation:

We formulate null and alternative hypotheses as  proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

The alternative hypothesis H1 is that the 80% of the  proportion is different and null hypothesis is , it is same.

For a two tailed test for significance level = 0.2 we have critical value  ± 1.28.

We have alpha equal to 0.2  for a two tailed test . We divided alpha with 2 to get the answer for a two tailed test. When divided by two it gives 0.1 and the corresponding value is ± 1.28

The test statistic is

p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

Where p = 0.8 , q = 1-p= 1-0.8= 0.2

n= 200

Putting the values

0.8 ± 1.28 \sqrt{\frac{0.8*0.2}{200} }

0.8 ± 0.03620

0.8362, 0.7638

As the calculated value of z lies within the critical region  we reject the null hypothesis.

8 0
3 years ago
Salim walked113miles to school and then212miles to work after school. How far did he walk in all? 316 miles 325 miles 345 miles
Mars2501 [29]

Answer:

Total distance traveled = 1/3 + 1/2 = 2+3/6 = 5/6 miles

Hope this helps!

Step-by-step explanation:

8 0
2 years ago
Determine the measure of ∠DBC. answers: 1) 130° 2) 115° 3) 230° 4) 65°
Norma-Jean [14]

Answer:

65 degrees

Step-by-step explanation:

65 degrees

it is 65 because of the vector relationship: 30 + 100 = 130. 130/2=65 degrees

5 0
3 years ago
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A line includes the points (9,0) and (-9,2). What is its equation in slope-intercept form?
horsena [70]
Y=mx+b

First use the two point slope formula to find m

(y2-y1)/(x2-x1)
(2-0)/(-9-9)
2/-18
1/-9=m

Next use the point slope formula to find the answer

y-y1=m(x-x1)

y-0=1/-9(x-9)

Now use Distributive Property 
y-0=1/-9(x)+1/-9(-9)
y-0=1/-9x+1

Your answer would be 
y=-1/9x+1
4 0
3 years ago
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