MATHEMATICS HIGH SCHOOL

Find r if 2700=2200(1+r)ˆ5 

( ˆ5 is the exponent for 5 )

Answers

Answer 1
Answer: 2700=2200(1+r)^5 \ /:2200\n\n(1+r)^5= (27)/(22) \n\n1+r= \sqrt[5]{(27)/(22) } \n\nr=\sqrt[5]{(27)/(22) } -1

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Lines that are parallel have the same slope or else no slope.

Answers

Lines that are parallel have the same slope.

Lines that have the same slope are parallel.
This true they must either have the same slope or no slope so that they will never cross each other

Which fraction has a numerator of 9 and a denominator of 13? 13/9 or 9/13

Answers

Answer:

9/13, The numerator is always on top and the denominator is always on the bottom.

If the volume of a certain pyramid is x and another pyramid is made which is 7 times larger (that is, all the linear dimensions have been increased by a factor of 7), what is the volume of the new pyramid (in terms of x)?

Answers

The volume of the new pyramid is given by:

V = 343x

The volume of a pyramid of radius r and height h is given by:

V = (\pi r^2h)/(3)

Initially, we suppose that the volume is x, that is:

V = (\pi r^2h)/(3) = x

Then, dimensions are multiplied by 7, that is, r = 7r and h = 7h, thus:

V = (\pi (7r)^2(7h))/(3)

V = 343(\pi r^2h)/(3)

V = 343x

A similar problem is given at brainly.com/question/21334693

Answer:

14

Step-by-step explanation:

Select the correct answer.What are the coordinates of point B in the diagram?

A.
(3.25, -2.5)
B.
(4, -5)
C.
(1, 3)
D.
(2.5, 0)

Answers

Answer:

The correct answer is B (4,-5)

Step-by-step explanation:

Each increment goes down by 2.5, so the only choice that really matches is B. (4,-5)

Someone help me please

Answers

Answer:

  • 24/24, 1/9, 20/32, 8/8, 3/4

Step-by-step explanation:

Blank 1  = 24/24

  • 24/1 = 24, 48/2 = 24

Blank 2  = 1/9

  • 3/3 = 1, 27/3 = 9

Blank 3  = 20/32

  • 5*4 = 20, 8*4 = 32

Blank 4 = 8/8

  • 48/6 = 8, 56/7 = 8

Blank 5 = 3/4

  • 21/7 = 3, 28/7 = 4

What is the equation of a parabola whose vertex is (-4,7) and whose graph is 1/2 as wide as y=x^2

Answers

The\ vertex\ form:y=a(x-h)^2+k\n\nvertex\ (h;\ k)\to(-4;\ 7)\n\nthen:y=a[x-(-4)]^2+7=a(x+4)^2+7\n\ngraph\ is\ half\ as\ wide\ as\ y=x^2\ then\ a=2\n\nAnswer:y=2(x+4)^2+7\n\ny=2(x^2+8x+16)+7=2x^2+16x+39
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