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arlik [135]
3 years ago
10

Help please I need to answer this question

Mathematics
1 answer:
djverab [1.8K]3 years ago
6 0

Answer:

D

Step-by-step explanation:

first find the perimeter of both triangles

Original perimeter: 72 in

scaled perimeter: 24 in

A is wrong since the scaled perimeter is actually smaller.

B is wrong because its not 6 times smaller

C is wrong since it's not 1/9 of the original

D is correct since the scaled is a 1/3 of the original perimeter (72*1/3 = 24)

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A 5-month membership to the gym costs $125 jim would like to be a member for 8 months. What is the total amount he Will pay for
SCORPION-xisa [38]

Answer:

$200

Step-by-step explanation:

125/5=25

25 x 8=200

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3 years ago
If i am driving 60 kilometers per hour in canada what would be my speed in miles per hour in the united states 1 kilometer equal
maks197457 [2]
I kilometer is .62 miles
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3 years ago
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alexgriva [62]
Solution :
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3 years ago
Read 2 more answers
A hair salon in Cambridge, Massachusetts, reports that on seven randomly selected weekdays, the number of customers who visited
morpeh [17]

Answer:

a: 28 < µ < 34

Step-by-step explanation:

We need the mean, var, and standard deviation for the data set.  See first attached photo for calculations for these...

We get a mean of 222/7 = 31.7143

and a sample standard deviation of: 4.3079

We can now construct our confidence interval.  See the second attached photo for the construction steps.

They want a 90% confidence interval.  Our sample size is 7, so since n < 30, we will use a t-score.  Look up the value under the 10% area in 2 tails column, and degree of freedom is 6 (degree of freedom is always 1 less than sample size for confidence intervals when n < 30)

The t-value is: 1.943

We rounded down to the nearest person in the interval because we don't want to over estimate.  It said 28.55, so more than 28 but not quite 29, so if we use 29 as the lower limit, we could over estimate.  It's better to use 28 and underestimate a little when considering customer flow.

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3 years ago
Systems of equations by substitution
Korolek [52]
Could you please clarify the question please by putting a question to be solved? Or are you asking for the definition?
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3 years ago
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