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horrorfan [7]
3 years ago
15

Which expression is equivalent to h + 7 + 2h + 8? 3h + 15 8h + 10 18 18h

Mathematics
1 answer:
makkiz [27]3 years ago
5 0
The answer would be 3H + 15
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4(5x - 2) = 72<br> What do I do
Pepsi [2]

Answer:

x = 4

Step-by-step explanation:

4(5x - 2) = 72

Do the distributive property

20x - 8 = 72

Then add 8 to both sides to get 20x alone

20x - 8 = 72

      + 8  + 8

20x = 80

Then divide both sides by 20 to get x

\frac{20x}{20} = \frac{80}{20}

x = 4

6 0
3 years ago
Swimming speed of salmon. The graph is showed below shows the influence of the temperature T on the maximum sustainable swimming
Doss [256]

Answer:

Here we have the relation between the speed of the salmon and the temperature.

a) the relation dS/dT tell us how the speed of the salmon changes as the temperature changes, and the units should be (if speed is m/s and temperature is in °C )

[dS/dT ] = [m/s*°C ].

b) I can not do a draw of the figure, but i can give a aproximation.

For T = 18°C, we can see that we are around the maximum of the curve, this means that around this point we will find the zero in the first derivate.

then S'(18) ≈ 0 m/s*°C

this means that around this point the changes are small.

for T = 10°C

Around this region, we can see almost a linear behavior.

so we can take a range of +-2°C

S(12°C) = 25m/s

S(8°C) = 20m/s

then the slope can be obtained using the relation:

S = (Y2 - Y1)/(X2 - X1) where this is the slope for the line that goes trough the pairs. (X1, Y1) and (X2, Y2)

S = (25 - 20)/(12 - 8) = 5/4

then we have that S´(10°C) ≈ 5/4 m/s*°C

Those two results are approximations, you may find better approximations by doing this with a ruler and drawing the tangents.

5 0
3 years ago
Which statement is true about this equation? y=2x+4
alukav5142 [94]

Answer:

Answer and Explanation:

In solving y = 2x - 4, we find that the slope of the line is 2, the y-intercept of the line is y = -4, and the x-intercept of the line is x = 2.

I hope this helps.

4 0
4 years ago
Read 2 more answers
What is the answer to (3x) to the 5th power
viva [34]

Answer:

Step-by-step explanation:

Given that

(3x) is raised to power 5

(3x)^5

Then,

Using indices

(AB)ⁿ = Aⁿ•Bⁿ

Then,

(3x)^5= 3^5•x^5

Then, 3^5 means=3×3×3×3×3=243

So,

(3x)^5= 243x^5

8 0
3 years ago
5,908.66 is<br> 5,908.71
Vikki [24]

5,908.71

Step-by-step explanation:

7 0
3 years ago
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