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shepuryov [24]
3 years ago
5

How to do 40% of 45.explain your answer

Mathematics
2 answers:
kompoz [17]3 years ago
4 0
Since it is 40% OF 45 you have the whole and percent so multiply 45 by 40 then divide by 100 you get 18
Sergeeva-Olga [200]3 years ago
3 0
First, we have to convert 40% to a decimal:

40% = 0.40

so next we just simply multiply the numbers:
   
   45
x.40

once completed it comes out to be 18. So the answer to your question is 18.

Hope this answer helps! feel free to ask any additional questions :)
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Which equation represents a parabola that opens upward, has a minimum value of 3, and has an axis of symmetry at x= 3?
Ilya [14]

Answer:

y=(x-3)^2+3

Step-by-step explanation:

<u><em>The correct question is</em></u>

Which equation represents a parabola that opens upward, has a minimum value of y=3, and has an axis of symmetry at x= 3?

<em>Verify each case</em>

case 1) we have

y=(x+3)^2-6

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=-3 ----> is not ok

case 2) we have

y=(x+3)^2+3

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=-3 ----> is not ok

case 3) we have

y=(x-3)^2-6

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=3 ----> is ok

case 4) we have

y=(x-3)^2+3

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=3 ----> is ok

6 0
3 years ago
Find the surface area of the pyramid shown to the nearest whole number. The base is a regular hexagon.
Fiesta28 [93]
The surface area of the pyramid will be given as follows:
Area of triangles:
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Area of the hexagon:
A=6×1/2×12×6√3
A=374.123m²

Total surface area:
SA=648+374.123
SA=1022.123 m²~1022 m²

Answer: C] 1022 m²

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natima [27]

The answer should be 32 2/3. Sorry I'm late, but hope this helps.

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