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3 years ago

10

Consider triangle ABC as pictured below. If B is transformed according to the rule (x,y) --> (x-4,y), then △AB'C will be a __

_____

1 answer:

inessss [21]3 years ago

4 0

Answer:

Right triangle

Step-by-step explanation:

7^2 + 6^2 = c^2

49 + 36 = c^2

85 = c^2

c = 9.22

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16 only thank you......

Annette [7]

The answer will be 4 1/2

3 0

3 years ago

Read 2 more answers

For what value of x is line a parallel to line b?<br><br> (Yo, please help me so I can go to sleep.)

iogann1982 [59]

X=20

If they're parallel the other number in the same spot as 5x+15 equals that, so 5x+15=115 because if they are parallel they're the same if same spot and same line going through them.

115-15 = 100
5x=100
Divide by 5 both sides
X=20

If x=20 then these lines would be parallel

6 0

3 years ago

jackie has one piece of fabric measured 3/4 yard. she cut the fabric into 3/8 yard pieces. how many pieces of fabric does jackie

Law Incorporation [45]

Answer:

2 pieces of 3/8 yard.

Step-by-step explanation:

They tell us that originally the fabric measures 3/4 of a yard and then it is cut and remains pieces of 3/8 of a yard, so we must know how many pieces could have been cut so that they will be this size, therefore we must divide:

3/4 / (3/8) = 2

Which means there are 2 pieces of 3/8 yard.

7 0

3 years ago

Based upon a smaller sample of only 170 st. paulites, what is the probability that the sample proportion will be within of the p

Pepsi [2]

Given that in 2008 the Better Business Bureau settled 75% of complaints they received (USA Today, March 2, 2009). Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaints settled for new car dealers is .75, the same as the overall proportion of complaints settled in 2008.

Part a) :

Suppose you select a sample of 450 complaints involving new car dealers. Show the sampling distribution of (to 4 decimals).

Population proportion = 0.75
sample size. n = 450
$Standard\ error=\sqrt{\frac{p(1-p)}{n}} \\ \\ =\sqrt{\frac{(0.75)(0.25)}{450}} = 0.0204$

Therefore, the sampling distribution has a proportion of 0.75 and a standard error of 0.0204.

Part b) :

Based upon a sample of 450 complaints, what is the probability that the sample <span>proportion will be within .04 of the population proportion (to 4 decimals)?

The probability </span><span>that the sample proportion will be within 0.04 of the population proportion</span> is given by:

$P(p\ \textless \ 0.75\pm0.04)=2P\left(z\ \textless \ \frac{0.04}{0.0204} \right)-1 \\ \\ 2P(z\ \textless \ 1.961)-1=2(0.97505)-1=1.9501-1 \\ \\ =\bold{0.9501}$

Therefore, the probability that the sample <span>proportion will be within .04 of the population proportion is 0.9501.

Part C:

</span><span>Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of (to 4 decimals).

</span><span>Population proportion = 0.75
sample size. n = 200
$Standard\ error=\sqrt{\frac{p(1-p)}{n}} \\ \\ =\sqrt{\frac{(0.75)(0.25)}{200}} = 0.0306$

Therefore, the sampling distribution has a proportion of 0.75 and a standard error of 0.0306.

Part D):

Based upon the smaller sample of only 200 complaints, what is the probability that the sample proportion will be within .04 of the population proportion (to 4 decimals)?

</span><span><span>
The probability </span>that the sample proportion will be within 0.04 of the population proportion is given by:

$P(p\
 \textless \ 0.75\pm0.04)=2P\left(z\ \textless \ \frac{0.04}{0.0306} 
\right)-1 \\ \\ 2P(z\ \textless \ 1.306)-1=2(0.90429)-1=1.80858-1 \\ \\
 =\bold{0.8086}$

Therefore, the probability that the sample <span>proportion will be within .04 of the population proportion is 0.8086.</span></span>

8 0

3 years ago

Please answer quick! God bless.

mario62 [17]

Answer:

I d k

Step-by-step explanation:

5.75x10=57.50

57.5+11.5=69(nice)

69+5.75= 74.75

74.75+5.75=80.5

80.5+5.75= 86.25

86.25+5.75=92

basically this formula should help

i tried to figure out on the way

7 0

3 years ago