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Feliz [49]
3 years ago
9

Please answer the question as best as you can :)

Mathematics
1 answer:
cupoosta [38]3 years ago
7 0
Y=mx+b and since the slope is -2 then m=-2

if we plug in 1 and -7 we get the equation -7=-2(1)+b

then we just solve for b which would end up being b=-5

the slope intercept is y=-2x-5
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you are riding a bicycle which has tires with a 25-inch diameter at a steady 15-miles per hour, what is the angular velocity of
motikmotik

Answer:

The angular velocity is 6.72 π radians per second

Step-by-step explanation:

The formula of the angular velocity is ω = \frac{v}{r} , where v is the linear velocity and r is the radius of the circle

The unit of the angular velocity is radians per second

∵ The diameter of the tire is 25 inches

∵ The linear velocity is 15 miles per hour

- We must change the mile to inch and the hour to seconds

∵ 1 mile = 63360 inches

∵ 1 hour = 3600 second

∴ 15 miles/hour = 15 ×  \frac{63360}{3600}

∴ 15 miles/hour = 264 inches per second

Now let us find the angular velocity

∵ ω = \frac{v}{r}

∵ v = 264 in./sec.

∵ d = 25 in.

- The radius is one-half the diameter

∴ r = \frac{1}{2} × 25 = 12.5 in.

- Substitute the values of v and r in the formula above to find ω

∴ ω = \frac{264}{12.5}

∴ ω =  21.12 rad./sec.

- Divide it by π to give the answer in terms of π

∴ ω = 6.72 π radians per second

The angular velocity is 6.72 π radians per second

3 0
3 years ago
The white Christmas tree is 7.55m tall.the green Christmas tree is twice as tall as the white Christmas tree which is 0.454m tal
Alja [10]

The white Christmas tree is 7.55m

Green Christmas tree is twice as tall as white Christmas tree: 7.55 * 2 = 15.1m

High golden Christmas tree: 15.1m - 0.454m = 14.646m

The total height of 3 Christmas trees is: 7.55m + 15.1m + 14.646m = 37.296m

Choose: A 37.296m

8 0
3 years ago
Find the measures of two suplametery angles if their measures are in the givin ratio 2:3
geniusboy [140]

Answer:

Let the two supplementary angles be

we know sum of two supplementary angles is 180

2x + 3x = 180

5x = 180

x = 180/5

x = 36

2*36 = 72

3*36 = 108

Therefore the two supplementary angles are 72 and 108

8 0
3 years ago
Read 2 more answers
PLZ HELP ASAP SOLVE SIMMILAR TRIANGLES (BASIC)
GuDViN [60]

<span>By similarity of triangles we have the following relationship:</span>

<span> (x) / (6) = (18) / (9)</span>

<span> Simplifying we have:</span>

<span> (x) / (6) = 2</span>

<span> Clearing the value of x we have:</span>

<span><span> x = 6 * 2</span></span>

<span><span> X = 12</span></span>

<span><span> Answer:</span></span>

<span><span> The value of x for this case is equal to:</span></span>

<span><span> <span>X = 12</span></span>
</span>

5 0
3 years ago
Which best describes what is happening in section b ?
levacccp [35]
D, he is moving at a constant spees
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