3 years ago

Help please? I'm dying from this haha

Mathematics

1 answer:

Readme [11.4K]3 years ago

8 0

Answer:

a is 28

Step-by-step explanation:

2a+6 = Matt age

a+2a+6=90

3a+6=90

3a=84

a= 28

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The edge of a cube measures 3.5 x 10 ^ -2 meters. What is the volume of the cube in cubic meters? WRITE Your ANSWERS IN SCIENTIF

Crank

The volume of given cube is: $4.29 * 10^{-5}$ cubic meters

Step-by-step explanation:

Volume of a cube is given by:

$V = a^3$

Given

Edge of the cube = $3.5*10^{-2}$

Putting the value of edge

$V = (3.5*10^{-2})^3\\V = 42.875 * (10^{-2})^3\\V = 42.9 * 10 ^{-2*3}\\V = 42.9 * 10^{-6}\\V = 4.29 * 10 * 10 ^{-6}\\V = 4.29 * 10^{-5}\ cubic\ meters$

The volume of given cube is: $4.29 * 10^{-5}$ cubic meters

Keywords: Volume, cube, scientific notation

Learn more about scientific notation at:

#LearnwithBrainly

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4 years ago

K(t) = 10t - 19<br> k(-5) =

DanielleElmas [232]

Answer:

-69

Step-by-step explanation:

k(-5) = 10*-5 -19

= -50-19

=-69

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3 years ago

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A taxi service charges $1.50 plus $0.60 per mile for a trip to the airport. The total charge is $13.50.

Readme [11.4K]

Answer:

13.50=1.50+.6x

Step-by-step explanation:

13.50=1.50+ .6x

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3.Write the product as a trinomial. (2r – 5)(r + 10)

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B is the correct answer

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