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Alex_Xolod [135]
2 years ago
5

Please help its my last question

Mathematics
1 answer:
Rom4ik [11]2 years ago
7 0

Answer:

Vertical angles

Step-by-step explanation:

A and C are formed by the same lines and are opposite.  A and C are vertical angles

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We are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without
serious [3.7K]

Answer:

Step-by-step explanation:

given that we are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.

Sample size = 765

Favour = 322

a) The population is the adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt

b) The parameter being estimated is the population proportion P of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.

c) point estimate for proportion = sample proporiton = \frac{322}{765} \\=0.4209

d) We can use test statistic here as for proportions we have population std deviation known.

d) Std error = 0.01785(\sqrt{\frac{pq}{n} }

Test statistic Z = p difference / std error

f) when estimated p is 0.50 we get Z = -4.43

g) Is true population value was 40% then

Z = 1.17 (because proportion difference changes here)

7 0
3 years ago
A car used 1/72 of a galloon of gas to drive 1/3 of a mile.At this rate,how many miles can the car travel using 1 galloon of gas
KiRa [710]

Answer:

24

Step-by-step explanation:

3 x 1/72 = 1 mile

72/3 = 24

The car will use 1 gallon of gas per 24 miles

7 0
2 years ago
11-2(3m-10)=5(4-m)<br> note: pls show the steps pls
Firlakuza [10]

Answer:

m=11

Step-by-step explanation:

11-2(3m-10)=5(4-m)

11-6m+20=20-5m

11+20=20+m

11=m

3 0
3 years ago
I got A, B, D, E. Can I have help with confirmation?
Margarita [4]

Answer:

Thats correct i think°

7 0
3 years ago
4. One can of spray paint can be used to create a line that is 240 feet long. How many cans of spray paint are needed to draw 40
Xelga [282]

Answer:

1.66 cans or 1.6 rounded.

Step-by-step explanation:

1 can = 240ft

2 cans = 480ft

480 divided by 240 = 1.66666666667.

Rounded number = 1.66 and or 1.6

7 0
2 years ago
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