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3 years ago

I need help with this math problem

Mathematics

1 answer:

insens350 [35]3 years ago

8 0

Answer:

In the explanation section.

Step-by-step explanation:

1. Table of values for the equation y = 2.3^x

(-2, 0.189)
(-1, 0.434)
(0, 1)
(1, 2.3)
(2, 5.29)
Graph with the green line

2. Table of values for the equations y = 4(1/2)^x

(-2, 16)
(-1, 8)
(0, 4)
(1, 2)
(2, 1)
Graph with blue line

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-6/5-2/3v+4/15+1/3v Combining like terms to create an equivalent expression

WINSTONCH [101]

Answer:

(-1/3)v - 14/15

Step-by-step explanation:

Group the v terms together and then the constant terms:

v(-2/3 + 1/3) + (-6/5 + 4/15)

This simplifies to:

(-1/3)v + (-18/15 + 4/15), or

(-1/3)v - 14/15

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3 years ago

What percent of 30 is 27

shutvik [7]

Answer:

90%

Step-by-step explanation:

convert the fraction know as a ratio to get 90%

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3 years ago

Read 2 more answers

Ef is the median of trapezoid abcd (please explain the answer im so confused lol)

Art [367]

Step-by-step explanation:

Okay, so...

The Median of a trapezoid is directly in the middle. For some weird mathimatical reason you won't ever need to know unless it's on an exam or you become a math major, its midsegment is the average of the top length and the bottom length.

In other words,

EF = ( BC + AD ) / 2

So for part 1, we can use that equation to find x.

$EF = ( BC + AD ) / 2$

Insert known equations.

$4x-18=[(x+12)+(3x-4)]/2$

Simplify within parentheses.

$4x-18=[x+12+3x-4]/2$

$4x-18=[x+3x+12-4]/2$

Add.

$4x-18=[4x+8]/2$

Divide.

$4x-18=2x+4$

Simplify.

$(4x-2x) +(-18+18)=(2x-2x)+(4+18)$

$2x=22$

Divide both sides by 2.

$x=11$

Part 2 is a lot easier now. All we have to do is plug in 11 for x.

$BC =x+12$

$BC = 11+12$

$BC = 23$

$AD = 4x-18$

$AD = 4(11)-18$

$AD = 44-18$

$AD = 26$

$EF = 3x-4$

$EF = 3(11)-4$

$EF = 33-4$

$EF = 29$

Answer:

Part I: x = 11

Part II:

BC = 23
AD = 26
EF = 29

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3 years ago

The radius of a cylindrical water tank is 4 ft and its height is 10 ft. What is the volume of the tank?

mixas84 [53]

Answer:

160π cubic feet

Step-by-step explanation:

V= πr²h

V= π x 4²x 10

V = 160π cubic feet

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Answer:

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Step-by-step explanation: yep

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