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3 years ago

How can transformations be used to determine congruency? I will give you 20 points. I really need help.

Mathematics

1 answer:

DedPeter [7]3 years ago

3 0

If you move and rotate the shapes and they perfectly line up then they are congruent.

Hope this helps :)

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Round 57,386 to the nearest thousand

DochEvi [55]

57 thousand. Since 3 is closer to 0 than it is to 10

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3 years ago

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The population of Anytown is 8000. It is predicted to increase by 5% in one year. What is the predicted population after one yea

solmaris [256]

800 is what I think

8 0

2 years ago

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on Saturday Leo and his brother drove into town to visit their mom Leo is trying to remember how much he spent on gas and tolls

Gwar [14]

Let t be the number of tolls they crossed.

Amount they spent at each toll = $1.75.

Amount they spent at gas station = $28.

Let C be the total amount they spent on gas and tolls.

If they crossed 1 toll, then

C = 28 + 1.75(1).

If they crossed 3 tolls, then,

C = 28 + 1.75(3)

If they crossed t tolls, then,

C = 28 + 1.75t

Here, the terms are 28 and 1.75t and the factors are 1.75 and t.

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2 years ago

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borishaifa [10]

180 degrees= a whole line
180-102=78
So m13 should equal 78°

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3 years ago

A random sample of 85 group leaders, supervisors, and similar personnel revealed that a person spent an average 6.5 years on the

strojnjashka [21]

Answer:

95% of confidence interval for the Population

( 6.1386 , 6.8614)

Step-by-step explanation:

Step( i ):-

Given random sample size 'n' =85

Mean of the sample size x⁻ = 6.5 years

Standard deviation of Population = 1.7 years

Level of significance = 0.95 or 0.05

Step(ii):-

95% of confidence interval for the Population is determined by

$(x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} })$

$(6.5 - 1.96\frac{1.7}{\sqrt{85} } , 6.5 + 1.96 \frac{1.7}{\sqrt{85} })$

( 6.5 - 0.3614 , 6.5 + 0.3614 )

( 6.1386 , 6.8614)

Conclusion:-

95% of confidence interval for the Population

( 6.1386 , 6.8614)

8 0

3 years ago