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KiRa [710]
2 years ago
15

Which of the following could be the side lengths of a triangle? A 9, 14, 25 10, B 13, 24 13, C 18, 30 D 15, 19, 36​

Mathematics
1 answer:
Rama09 [41]2 years ago
6 0

Answer:

B

Step-by-step explanation:

B could be an isosceles triangle

A can't because it has 4 sides

C can't because it has 2 sides

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Ilya [14]

Answer:

Answer is *Y*

Step-by-step explanation:

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2 years ago
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Use the image to answer the question
Aliun [14]

Answer:

A = 140 in²

Step-by-step explanation:

The area (A) of the triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

here b = 20 and h = 14 , then

A = \frac{1}{2} × 20 × 14 = 10 × 14 = 140 in²

5 0
2 years ago
Find the unit tangent vector T(t) to the curve r(t) = [sin(t), 1 + t, cos(t)] when t = 0.
ss7ja [257]

Compute the derivative of \mathbf r(t) at t=0 - this will be the tangent vector - then normalize it by dividing it by its magnitude to get the unit tangent vector \mathbf T(t).

\mathbf r(t) = \langle \sin(t), 1+t, \cos(t) \rangle \implies \dfrac{d\mathbf r}{dt} = \langle \cos(t), 1, -\sin(t) \rangle \implies \dfrac{d\mathbf r}{dt}(0) = \langle 1, 1, 0 \rangle

\|\langle1,1,0\rangle\| = \sqrt{1^2+1^2+0^2} = \sqrt2

\implies\mathbf T(0) = \dfrac{\langle1,1,0\rangle}{\sqrt2} = \boxed{\left\langle \dfrac1{\sqrt2}, \dfrac1{\sqrt2}, 0\right\rangle}

7 0
1 year ago
In a stadium, 1,000 tickets were sold. Children’s tickets cost $2.50 each and adults’ tickets cost $5.00 each. The revenue colle
Juli2301 [7.4K]

Answer:

400 children tickets and 600 adult tickets.

Step-by-step explanation:

children tickets in total cost=400x2.50

                                             =1000

adult tickets in total cost=600x5.00

                                             =3000

total cost is 4000

4 0
2 years ago
What is the approximate radius of a sphere with a volume of 1436m^3
Vedmedyk [2.9K]

Answer: r≈7m

Step-by-step explanation:

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2 years ago
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