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3 years ago

Can someone help me please

Mathematics

1 answer:

kvasek [131]3 years ago

5 0

Domain:
$( - \infty \: comma \: \infty )$
Range:
$( - \infty \: comma \: - 1)$
Asymptote @ y = -1
Red line in picture is the asymptote.

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A cone fits inside a square pyramid as shown For every

saul85 [17]

Answer:

C is the answer

Step-by-step explanation:

4 0

3 years ago

Kylie is planning to provide online science and Chinese language tutoring sessions. The sciences

Ivahew [28]

Answer:

120 ≤ 20c + 40s

Step-by-step explanation:

(Assuming her name is Kylie, who is giving 40 minute science sessions and 20 minute Chinese sessions.)

The unit for time will be minutes.

Write an equation for time needed for science sessions

40s = t

Write an equation for time needed for Chinese sessions

20c = t

Combine the two equations for the total time.

20c + 40s = total time

She does not want the total time to be more than two hours.

Convert two hours to minutes. There are 60 minutes in an hour.

2h * 60mins = 120 mins

Therefore t ≤ 120. Include this into the equation.

120 ≤ 20c + 40s

8 0

3 years ago

Olivia scored 82 points on the first mathematics test of the year. On the second mathematics test, she scored 78 points. What is

Kryger [21]

The percent of change in the number of points she scored between the first and second tests = 4.878 %

<h3>What is percentage decrease?</h3>

If the data is decreasing,

Decrease = Original Number - New Number.

Then: divide the decrease by the original number and multiply the answer by 100.

% Decrease = Decrease ÷ Original Number × 100.

Given that:

The score of first Math test = 82

The score of second Math test = 78

Changes occurs in marks by=78-82

=-4

So, there is decrease in marks.

We have to find the decrease percentage:

Decrease%= $\frac{change \;in \;value}{Original\; value} *100$

= $\frac{4}{82} *100$

= 0.04878 * 100

= 4.878 %

There is 4.88% decrease in Olivia's score.

Learn more about percentage decrease here:

brainly.com/question/10168902

#SPJ1

4 0

2 years ago

In one area, the lowest angle of elevation of the sun in winter is 27.5°. Find the minimum distance x that a plant needing full

Alex73 [517]

Answer:

The minimum distance x that a plant needing full sun can be placed from a fence that is 5 feet high is 4.435 ft

Step-by-step explanation:

Here we have the lowest angle of elevation of the sun given as 27.5° and the height of the fence is 5 feet.

We will then find the position to place the plant where the suns rays can get to the base of the plant

Note that the fence is in between the sun and the plant, therefore we have

Height of fence = 5 ft.

Angle of location x from the fence = lowest angle of elevation of the sun, θ

This forms a right angled triangle with the fence as the height and the location of the plant as the base

Therefore, the length of the base is given as

Height × cos θ

= 5 ft × cos 27.5° = 4.435 ft

The plant should be placed at a location x = 4.435 ft from the fence.

8 0

3 years ago

Given the functions f(x) = 3x − 1 and g(x) = 3x + 4, which operation results in the smallest coefficient on the x term?

Vera_Pavlovna [14]

Division because if you divide the two functions together, you keep the 3 in the x term. If you add the two functions, your coefficient is 6. If you subtract, the x term is eliminated. If you multiply, you'll get 9x.
3 is smaller than 6 or 9 :)

8 0

3 years ago