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1 year ago

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Mathematics

1 answer:

Anestetic [448]1 year ago

4 0

Answer:

I belive it is 3x^2 + x. Sometimes I'm braindead so it may be wrong.

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Help me please and thank you

lubasha [3.4K]

The 3rd one to the right is the correect one
the dotted line shows it does not include the points on which it lies and is shaded above (showing it is > and not ≥)

Answer: The 3rd graph to the right

8 0

2 years ago

15 - (-7) = ?? Please help if you know the answer can you maybe show work or explane how you got the answer thank you :)

Lena [83]

Answer:

Step-by-step explanation:

since a negative times a negative equals a postive the equation becomes 15+7 which is 22

5 0

2 years ago

This net can be folded to make a square pyramid. What is the surface area of the pyramid?

Eddi Din [679]

Answer:

$85in^2$

Step-by-step explanation:

to find the surface area we need to find the followng areas:

area of the square

area of a triangle and multiply it by 4 (because there are 4 triangles)

And once we have those areas, we add them to find the surface area.

Area of the square:

the formula to find the area of a square is:

$a_{square}=l^2$

where $l$ is the length of the side: $l=5in$

thus the area of the square is:

$a_{square}=(5in)^2\\a_{square}=25in^2$

Area of the triangles:

the are of 1 triangle is given by

$a_{triangle}=\frac{b*h}{2}$

where $b$ is the base of the triangle: $b=5in$ (the base of the triangle is the side of the square)

and $h$ is the height of the triangle: $h=6in$

thus, the area of 1 triangle is:

$a_{triangle}=\frac{(5in)*(6in)}{2}\\ a_{triangle}=\frac{30in^2}{2}\\ a_{triangle}=15in^2$

the area of the 4 triangles is (we multiply by 4):

$a_{4-triangles}=4(15in^2)\\a_{4-triangles}=60in^2$

finally we add the area of the square and the area of the 4 triangles to find the total surface area:

$Surface=25in^2+60in^2\\Surface=85in^2$

5 0

2 years ago

The function

Ghella [55]

Functions can be represented by equations and graphs

There are 2 million users online at 9 am
The domain is [0,23], while the range is [2, $\infty$ )

<h3>The number of users at 9am</h3>

The function is given as:

$g(x) = \frac 14\sqrt[3]{x - 3} + 2$

At 9am, x = 9.

So, we have:

$g(x) = \frac 14\sqrt[3]{9 - 3} + 2$

Evaluate the difference

$g(x) = \frac 14\sqrt[3]{6} + 2$

Evaluate the exponent

$g(x) = \frac 14 * 1.8 + 2$

$g(x) = 0.45 + 2$

Evaluate the sum

$g(x) = 2.45$

Approximate

$g(x) = 2$

Hence, there are 2 million users online at 9 am

<h3>The function transformation</h3>

We have:

$g(x) = \frac 14\sqrt[3]{x - 3} + 2$

The parent function is:

$f(x) = \sqrt[3]{x}$

So, the transformations applied to the parent function are:

Vertical compression by a scale factor of 4
Horizontal shift to the right by 3 units
Vertical shift up by 2 units

<h3>The domain and the range</h3>

The domain is the possible input values, and the range are the possible output values.

There are 24 hours in a day.

So, the domain is:

Domain = [0,23]

While the range is [2, $\infty$ )

Read more about function transformation at:

brainly.com/question/1548871

8 0

2 years ago

Brian purchased a trophy in the shape of a square pyramid for the most valuable player on his lacrosse team. The trophy had a sl

Goshia [24]

Answer:

up , up , up , upitdy.

ngl im not sure bro but somehow i got 16 4x4=16

Step-by-step explanation:

5 0

2 years ago