2 years ago

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Mathematics

1 answer:

arsen [322]2 years ago

3 0

Answer:

The scale factor is 5 because the increase in each side of the shape is *5

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PLEASE HELP!!! I am stuck!

labwork [276]

1/3 has the largest value.

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3 years ago

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In the calm waters of an inlet, Manon's boat moves with a velocity (speed and direction) vector \vec{b_1} = (3,4) b 1 =(3,4)

andrew-mc [135]

Answer with Step-by-step explanation:

We are given that

$b_1=(3,4)$

$b_2=(1,1)$

We have to find the speed of river's current and the direction of current flowing.

$b=b_2-b_1=(1,1)-(3,4)=(-2,-3)$

Speed of river's current= $\mid b\mid$

Speed of river's current= $\sqrt{(-2)^2+(-3)^2}$

Speed of river's current= $\sqrt{13} m/s$

By using the formula

$\mid r\mid =\sqrt{x^2+y^2}$

Direction of current flowing, $\theta=tan^{-1}(\frac{y}{x})$

$\theta=tan^{-1}(\frac{-3}{-2})=56.3^{\circ}$

The angle lies in third quadrant therefore

$\theta=180+56.3=236.3^{\circ}$

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3 years ago

What's the circumference of a circle with a diameter of 9 inches?

yaroslaw [1]

Answer:

9pi

Step-by-step explanation:

circumference= 2 (pi) (r)

radius = diameter \ 2

r = 9 \ 2 = 4.5in.

c = 2 (pi) (4.5)

c = 9pi or 28.3in.

Hope this helps!

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3 years ago

What are the prime factors of 28?

koban [17]

Answer:

2 and 7 are the prime numbers.

Step-by-step explanation:

5 0

3 years ago

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Which statement is always true about two congruent polygons?

Oduvanchick [21]

Answer:The number of angles & sides is always the same.

Step-by-step explanation:

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3 years ago

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