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Vlad1618 [11]
3 years ago
5

BEEN STUCK FOR A WHILE PLEASE HELP!! Find the perimeter and area for the triangle. Be sure to write the formula, and use correct

measure. ​

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
4 0

Answer:

Area = 77ft²

Perimeter = 44 9/20 feets

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Base = 19 1/4 feets = 77/4 feets

Height = 8 feets

Area = 1/2 * 77/4 * 8

Area = (77 * 8) / 8

Area = 77 feet²

Perimeter of a triangle :

Sum of the sides

Perimeter = a + b + c

Perimeter = 19 1/4 + 10 + 15 1/5

Perimeter = 44 + (1/4 + 1/5)

Perimeter = 44 9/20

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Determine the unit rate of the following.<br> 240 hours of homework in 8 weeks.
astra-53 [7]

Answer: 30\ \frac{hours}{week}

Step-by-step explanation:

In order to solve this exercise it is important to remember that a "Rate" is defined as a ratio that compares two different but related quantities.

Then, "Unit rate" tell us how many units of the first  quantity corresponds to one unit of the second quantity. Therefore, the second quantity is equal to 1.

According to the information given in the exercise, you know that the number of hours of homework in 8 weeks is 240 hours.

Then, in order to determine the Unit rate (the number of hours per week), you need to divide 240 hours by 8 weeks.

Through the procedure explained above, you get the that the number of hours per week is the following:

unit\ rate=\frac{240\ hours}{8\ weeks}\\\\unit\ rate=30\ \frac{hours}{week}

(Notice that it is 30\ hours\ per\ week)

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3 years ago
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Anna35 [415]
What do you need help with? Let me know what you need help with and I will be happy to help.
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4 years ago
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bija089 [108]

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The answer is for this question is False

4 0
3 years ago
Read 2 more answers
PLEASE HELP!!
inn [45]
You can use the Pythagorean Theorem to find the length of the third side AB (Identified as "x" in the figure attached in the problem), which says that in a right angled triangle, the square of the hypotenuse is equal to the sum of the squares of the legs:
a² = b²+c²
As we can see the figure, the triangle does not have an angle of 90°, but it can be divided into two equal parts, leaving two triangles with a right angle. We already have the values of the hypotenuse and a leg in triangle "A" , so we can find the value of the other leg:
b = √(a²-c²) b = √(10²-4²) b = 9.16
With these values, we can find the hypotenuse in the triangle "B": x = √b²+c² x = √(9.16)²+(4)² x = 10
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