2 years ago

Find the area of each triangle. Round to the nearest tenth.

Mathematics

1 answer:

Galina-37 [17]2 years ago

3 0

Answer:

A ≈ 9.6 units²

Step-by-step explanation:

the area (A) of the triangle is calculated as

A = product of 2 sides × sin (angle between them ) , that is

A = 3 × 5 × sin40° = 15 × sin40° ≈ 9.6 units² ( to the nearest tenth )

You might be interested in

Add: x^5 - 4x^4 + 7x^3 + 8, 9x^3+ 7x^2 - 10, and -2x^5 + 7x^4 - 3x + 8.

Nastasia [14]

Answer:

$\large\boxed{-x^5+3x^4+16x^3+7x^2-3x+6}$

Step-by-step explanation:

$(x^5 - 4x^4 + 7x^3 + 8)+(9x^3+ 7x^2 - 10)+(-2x^5 + 7x^4 - 3x + 8)\\\\=x^5 - 4x^4 + 7x^3 + 8+9x^3+ 7x^2 - 10-2x^5 + 7x^4 - 3x + 8\\\\\text{combine like terms}\\\\=(x^5-2x^5)+(-4x^4+7x^4)+(7x^3+9x^3)+7x^2-3x+(8-10+8)\\\\=-x^5+3x^4+16x^3+7x^2-3x+6$

7 0

3 years ago

At most Nate can run 0.1 of a mile in a minute. If he is given 13.9 minutes to run as far as he can, how many miles dan Nate run

nadezda [96]

(.1mi/1min)
1.39mi/13.9 min
You have to multiply the bottom and the top by the same number to get the answer, you're trying to make the denominator 13.9 for the amount do minutes so you multiply the numerator by 13.9 to get the numerator

3 0

3 years ago

Find the missing side length, and enter your answer in the box below. If

mixas84 [53]

3^2 + 4^2 = c^2

sqrt(9) + sqrt(16) = c^2

Sqrt(25) = c^2

C = 5

4 0

3 years ago

Is the additive inverse of an integer always negative?

KengaRu [80]

Yes it is always a negative because that is the only way it would be an additive is if it was a negative number

3 0

3 years ago

The supplement of a 65° angle has a measure of

horsena [70]

Answer:

115 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees, so if x is the angle you're trying to have you get:

$x + 65 = 180\\x = 115$

7 0

3 years ago