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inna [77]
3 years ago
7

An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, t

he altitude cuts the base into two equal segments. The length of the altitude is 18 inches, and the length of the base is 17 inches. Find the triangle's perimeter. Round to the nearest tenth of an inch.
Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0

9514 1404 393

Answer:

  56.8 in

Step-by-step explanation:

The side length (s) can be found using the Pythagorean theorem. The short leg of the right triangle is 17/2 = 8.5 inches.

  8.5^2 + 18^2 = s^2

  s = √396.25 ≈ 19.906 . . . inches

Then the perimeter is ...

  2 × 19.9 in + 17 in = 56.8 in

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8 0
3 years ago
5) Is 3 a zero (or root) of f(x) = x3 - 9x2 + 11x + 21?
frozen [14]

Answer:

Yes

Step-by-step explanation:

f(x) = x³ − 9x² + 11x + 21

f(3) = (3)³ − 9(3)² + 11(3) + 21

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6 0
3 years ago
Use the context of a 24-pack of soda to explain why 3/8 is NOT equivalent to 4/12.
Vsevolod [243]

Answer:

Step-by-step explanation:

if we're going by a 24 pack of soda, 3/8 would be 9 sodas while 4/12 is a third, which would be 8 sodas

4 0
3 years ago
If j = 10 cm and k = 12.5 cm what is the length of l
leonid [27]

Answer:

22.5

Step-by-step explanation:

3 0
3 years ago
The isosceles triangle has two sides with the same length. The base is one-half the length of a side. The expression which repre
gavmur [86]

Answer:

20 units

Step-by-step explanation:

s = 8

Perimeter = s + s + \frac{1}{2}*s

                = 8 + 8 + \frac{1}{2}*8

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3 years ago
Read 2 more answers
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