2 years ago

Evaluate the algebraic expression 2a+8 a=3

Mathematics

2 answers:

Eddi Din [679]2 years ago

6 0

Answer:

Step-by-step explanation: 2x3=6+8=14

ZanzabumX [31]2 years ago

5 0

Answer:

2(3)+8

6+8

hope this helps

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Step-by-step explanation:

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3 years ago

If pqr = 1 , rst = 0 , and spr = 0, which of the following must be zero?

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raketka [301]

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Rate of change between (2,11) and (8,14)

SCORPION-xisa [38]

Answer:

1/2

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the rate of change is = the change in y/ the change in x

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2 years ago

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ANEK [815]

Answer:

$\approx 11.2\:\mathrm{in}$

Step-by-step explanation:

The swing of the tip of pendulum is creating an arc. The question is actually asking for the length of this arc. The length of an arc is given by $2r\pi\cdot \frac{\theta}{360}$ , where $r$ is the radius of the circle and $\theta$ is the angle of the arc.

In this problem, we're given:

$\theta = 40^{\circ},\\r=16$

Substituting given values, we get:

$2\cdot 16\cdot \pi \cdot \frac{40}{360}=32\pi\cdot \frac{1}{9}\approx \boxed{11.2\:\mathrm{in}}$

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