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3 years ago

I need help asap!!! Please explain and I will give brainliest!!

Mathematics

1 answer:

GarryVolchara [31]3 years ago

6 0

Answer:

DF ≅ AC

Step-by-step explanation:

To prove that the triangles are congruent by AAS, we need a side from each triangle to be congruent to the other, correspondingly. So, if AC ≅ DF, we could prove the triangle's congruency by AAS. In the answer choices, the only answer that works is DF ≅ AC.

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The division of whole numbers is commutative. true or false?

AURORKA [14]

'Commutative' means you can work it in the other direction without changing it.
But 1/2 is not the same number as 2/1 . So I guess division is NOT commutative.

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Any equation can be written in function notation<br> O True<br> False

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Step-by-step explanation:

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3 years ago

Kara bought two birthday gifts for her twin nephews. Each gift cost $12.50. Sales tax was 6.75%. What was the total cost for the

Katyanochek1 [597]

Answer:

Step-by-step explanation:

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3 years ago

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An electrician charges an initial fee of $35 for attending a house call. Thereafter, he charges $15 for every hour spent on the

umka21 [38]

Answer:

1 hour=35+15=50

2 hours=35+15(2)=65

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4 hours=35+15(4)=95

Step-by-step explanation:

3 0

3 years ago

30 POINTS

PtichkaEL [24]

Answer:

180 degrees per second.

Step-by-step explanation:

We have been given a graph that shows the distance covered by a tire or angular velocity of a tire with respect to the number of seconds (x).

Since we know that a tire is a circle and the measure of all the angles of a circle equals to 360 degrees.

We can see from our given graph that the tire completes one rotation in 2 seconds (2.5-0.5), so the distance covered by tire in two seconds will be 360 degrees. This means that the tire turns 360 degrees in each 2 seconds.

$\text{Degrees turned by tire in 2 seconds}=\frac{360^o}{2\text{ seconds}}$

As we are asked to find the degree change by tire per second so we will find the unit rate such that we will have 1 in our denominator. By dividing our numerator and denominator by 2 we will get,

$\text{Degrees turned by tire in every second}=\frac{180^o}{\text{ second}}$

Therefore, the tire is turning 180 degrees per second.

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3 years ago

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