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Flura [38]
3 years ago
14

Help❗️❗️❗️❗️❗️The length of the hypotenuse of a right triangle is 157 units. The length of one leg of the triangle is 132 units.

Lara wrote the following steps find the length of the unknown leg:
Length of the unknown leg= 157^2 - 132^2=24,649 - 17,424= 7,225 units
Which statement best explains whether Lara’s step is correct or incorrect?
A. It is correct because the length of the unknown side is the difference of the lengths of the sides
B. It is correct because the length of the unknown side is the difference of the squares of the sides
C. It is incorrect because the length of the unknown side is the square root of 42,073
D. It is incorrect because the length of the unknown side is the square root of 7,225
Mathematics
2 answers:
Levart [38]3 years ago
7 0

Answer:

D. It is incorrect because the length of the unknown side is the square root of 7,225

Step-by-step explanation:

Because it is a right triangle, we can use the Pythagorean theorem

a^2 +b^2 = c^2

where a and b are the legs and c is the hypotenuse

132^2 + b^2 =157^2

17424 +b^2 =24649

Subtract 17424 from each side

17424-17424 +b^2 =24649 - 17424

b^2 =7225

Take the square root of each side

sqrt(b) = sqrt(7225)

b = 85

yarga [219]3 years ago
4 0

Answer:

The answer is D.

Step-by-step explanation:

She forgot to find the square root of 7225.

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nignag [31]
A) a 45 degree angle

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3 years ago
Taylor surveys students in one grade level who own at least one pet. She finds that 50% of the students surveyed own 2 pets, 3 s
Llana [10]
First, we need to work out the total number of students who were being surveyed.

We know that half of the students has two pets. The rest of the students make up the other half. So, we have 3 students + 2 students + 8 students = 13 students that make half of the sample population

That means total number of students being surveyed is 13+13=26 students

Then we work out the probability
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The probability distribution is shown in the table below. Let x be the number of pets and P(X=x) is the probability of owning the number of pets


3 0
4 years ago
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Is anyone able to help me with this question:
Serga [27]

Answer:

not sure but this info might help you.

Step-by-step explanation:

the diagonal in the rectangle splits it into two right angled triangles, hence the hypotenuse is the diagonal.

once you find the measurement, we all know that a square has all sides equal and the diagonal splits it into 2 equilateral triangles. so, the side of the square =the diagonal's measurement.

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