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dlinn [17]
3 years ago
13

I need help it khan 4q+3+2q-1​

Mathematics
1 answer:
Damm [24]3 years ago
7 0

Answer: 6q +  2

Step-by-step explanation:

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Help pleaseeeeee thanks i hope u have a good day
VikaD [51]

Answer:

12825$

Step-by-step explanation:

1 yard = 3 ft

we can convert each of the lengths from ft to yards

240 ft = 80 yards

285 ft = 95 yards

450 ft = 150 yards

150+150+95+80 = 475 yards

1 yard of fencing costs 27$ so we are going to multiply that by the total yards

475*27=12825$

4 0
3 years ago
Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point. Illustra
Rainbow [258]

Answer:

x = t

y = 1 - t

z = 2t

Step-by-step explanation:

Given

x=t

y=e^{-t}

z=2t-t^2

(0, 1, 0)

The vector equation is given as:

r(t) = (x,y,z)

Substitute values for x, y and z

r(t) = (t,\ e^{-t},\ 2t - t^2)

Differentiate:

r'(t) = (1,\ -e^{-t},\ 2 - 2t)

The parametric value that corresponds to (0, 1, 0) is:

t = 0

Substitute 0 for t in r'(t)

r'(t) = (1,\ -e^{-t},\ 2 - 2t)

r'(0) = (1,\ -e^{-0},\ 2 - 2*0)

r'(0) = (1,\ -1,\ 2 - 0)

r'(0) = (1,\ -1,\ 2)

The tangent line passes through (0, 1, 0) and the tangent line is parallel to r'(0)

It should be noted that:

The equation of a line through position vector a and parallel to vector v is given as:

r(t) = a + tv

Such that:

a = (0,1,0) and v = r'(0) = (1,-1,2)

The equation becomes:

r(t) = (0,1,0) + t(1,-1,2)

r(t) = (0,1,0) + (t,-t,2t)

r(t) = (0+t,1-t,0+2t)

r(t) = (t,1-t,2t)

By comparison:

r(t) = (x,y,z) and r(t) = (t,1-t,2t)

The parametric equations for the tangent line are:

x = t

y = 1 - t

z = 2t

7 0
3 years ago
If 0 is an angle in standard position and its terminal side passes
Gre4nikov [31]

Answer:-27/7

Step-by-step explanation:

3 0
3 years ago
This graph shows how far a hurricane travelled in 4 h. What was the hurricane’s average speed in kilometres per hour?
Maksim231197 [3]

Answer:

<h2>The hurricane's speed was 200kmph</h2>

at average

Step-by-step explanation:

The way how we can find this is <em>simple</em>. If we look at the graph, we see that in 1 hour, the hurricane traveled at a constant rate of 200kmph

Hence, the hurricane's average speed was 200kmph

7 0
2 years ago
DannyÍs 7 friends contributed an equal amount of money to buy him a birthday present. The present cost $84. How much money did e
MariettaO [177]
This one is easy. All you have to do is divide 84/7. and then you will have the amount of 12 so each of Danny's friends contributes $12.
6 0
3 years ago
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