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Irina18 [472]
3 years ago
9

The leg of an isosceles triangle has a length 2x+4 and the base has length 3x. The

Mathematics
1 answer:
ikadub [295]3 years ago
4 0

Answer:

Base = 57

Step-by-step explanation:

Given

Length = 2x + 4

Base = 3x

Perimeter = 141

Required

Determine the length of the base

The perimeter of an isosceles triangle is:

Perimeter = 2*Length + Base

141 = 2 (2x + 4) + 3x

141 = 4x + 8 + 3x

Collect Like Terms

4x + 3x = 141 - 8

7x = 133

Divide both sides by 7

x = 19

To get the base, we substitute 19 for x in Base = 3x

Base = 3 * 19

Base = 57

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Answer:

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4 years ago
A number is one tenth less than 1.54. Determine the number
tester [92]

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3 0
3 years ago
Read 2 more answers
I need some help on this math problem, thanks so much
bekas [8.4K]

Answer:

The answer is C.

Step-by-step explanation:

Hit 'em with the Law of Sines.

sin(A)/a = sin(B)/b.

Let's say x is equal to "A", thus 5 is "a".

sin(x)/5 = sin(B)/b.

We could go for the obvious choice for "B", which would be the 90 degrees shown. To solve for the hypotenuse which will be "b", let's use the Pythagorean Theorem:

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sin(x)/5 = 1/20.6

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You can plug in sin^-1(0.2427) into your calculator, and you should end up with something like 14.047... which equates to answer choice C.

6 0
3 years ago
What are two numbers that add up to 70 without regrouping?
dedylja [7]
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3 years ago
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