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Oksana_A [137]
3 years ago
15

Find value of X in the isosceles triangle shown below

Mathematics
1 answer:
EleoNora [17]3 years ago
3 0

Answer:

A

Step-by-step explanation:

You have to use Pythagorean theorem.

a^2 + b^2 = c^2

x^2 + 3^2 = 5^2 (you know that b=3 because is the half of 6)

x^2 + 9 = 25

x^2 = 25 - 9

x^2 = 16

x = √16

x = 4

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In one month Sierra earned $400 and $100 was withheld from income tax. Suppose she makes $600 next month. How much will be withh
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$150

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it is $25 income tax every $100 earned so 25 x 6 = 150

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3 years ago
A car travels 120 miles in 2.5 hours (with a constant speed). What is the car's
kipiarov [429]

Answer:

48

Step-by-step explanation:

120 divided by 2.5 = 40

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A video game is on sale for 20% off. The sale price of the game is $35.00. How much did the game ORIGINALLY cost?
Elena-2011 [213]

Answer:

$43.75

Step-by-step explanation:

To find how much the game would have been 20% off from 43.75, you would have needed the expression

43.75*0.8

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35/0.8.

This expression in simpler terms means What is 38, 80% of?

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35/0.8 = 43.75.

7 0
3 years ago
2(x+1)=3x-x+2 help fast and show work please
Stells [14]

Answer:

0=0

Step-by-step explanation:

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4 years ago
I'd greatly appreciate the help-
dem82 [27]

Answer:

The 3rd option

Step-by-step explanation:

To prove that 2 triangles are similar, we need to prove that 2 pairs of their angle measurements are congruent.

This is because all triangles have 180 degrees, so if 2 pairs are congruent, the remaining angles will also be congruent

We know that m<D=m<E

We also know that m<DCA=m<ECB because they are vertical angles.

Vertical angles are always congruent.

Therefore, the triangles are similar.

The correct similarity statement would be 1, since <D corresponds with <E.

Now let's look at the 3rd Statement. To prove that two lines are similar, we would have to prove that their alternate interior angles are congruent.

A pair of alternate interior angles would be <D and B or or <E  and <A

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Hence, the correct choice would be 1 only.

7 0
3 years ago
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