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SIZIF [17.4K]
3 years ago
14

I need someone to teach me how to solve this

Mathematics
1 answer:
abruzzese [7]3 years ago
6 0

Answer:

t + 40 = 90

Step-by-step explanation:

90 minutes volunteering

40 minutes delivering flowers

90 - 40 = number of minutes answering phone   (50 minutes)

so, t = 90 - 40    or  rearranged to t + 40 = 90

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The triangles are similar. Write a similarity statement for the triangles.
Alecsey [184]

Answer:

we know that

If two figures are similar, then its corresponding sides are proportional and its corresponding angles are congruent

In this problem

Triangles XZY and VZW are similar

therefore

corresponding angles are congruent

∠XZY≅∠VZW

∠ZXY≅∠ZVW

∠XYZ≅∠VWZ

corresponding sides are proportional

Step-by-step explanation:

3 0
3 years ago
F(x)=x^2+10<br><br> Over which interval does fff have a positive average rate of change?
ohaa [14]

Answer:

(0, inf)

Step-by-step explanation:

The average rate of change of a function is related to it's first derivative. When the first derivative is positive, the average rate of change is positive, which means that the function is crescent.

Now, when the first derivative is negative, the average rate of change will be negative too, and the function is going to be decrescent.

In your function.

We have: f'(x) = 2x

2x > 0 when x > 0. So when x > 0 the average rate of change of your function is positive, and it's values increases as the time increases. When x < 0, the average rate of change is negative, so, as the time increases, the values of f decrease.

You can use a graphic tool to plot f and visualize this better.

6 0
3 years ago
Read 2 more answers
What is the solution to the inequality 4−2(x+10)&lt;12?
DaniilM [7]

hope you like the answer

please mark the answer to brainliest

6 0
3 years ago
How much can this container hold?
nydimaria [60]

Answer:

225 in.^3

Step-by-step explanation:

You need to find the volume of the container.

The container has the shape of a rectangular prism.

volume = length * width * height

volume = 5 in. * 4.5 in. * 10 in.

volume = 225 in.^3

6 0
3 years ago
What value of g makes the equation true?<br> (xt7)(x-4)=x2+gx-28
Mnenie [13.5K]

Answer:

g = 3

Step-by-step explanation:

If you distribute (x+7)(x-4) you get:

x²+3x-28

Compare it to the question:

x²+gx-28

and it becomes obvious that g = 3

8 0
4 years ago
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