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3 years ago

Pls do this one i have quiz at this so ya pla do it i only have 20 minutes pls

Mathematics

1 answer:

steposvetlana [31]3 years ago

5 0

Answer:

Answers for the question

(1.)320cm3 (2.)144cm3. (3.)330cm3. (4.)160cm3.(5.)336cm3. (6.)1440cm3. (7.)7500cm3. (8.)20000. (9.)1500000

please the three besides cm is cm raise the power three meaning cm-cube

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8n^2-4(7m^3+5n^2)<br> help

Rasek [7]

Hello there!

8m² - 4(7m³ + 5n²)

You wanna start by using the distributive property

=8n² - (-4)(7m³) + (-4)(5n²)

= 8n² - 28m³ - 20n²

= -28m³ - 12m²

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2 years ago

What is the least positive integer divisible by each of the first five composite numbers

Sonbull [250]

Answer:

the answer is 360. the first composite numbers are 4,6,8,9,10

and all the numbers above are divisible by 360

360÷4=90

360÷6=60

360÷8=45

360÷9=40

360÷10=36

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3 years ago

Hiii please help i’ll give brainliest:)

djverab [1.8K]

Answer:

Geographic features of ancient Greece.

Step-by-step explanation:

Greece has all of those attributes.

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2 years ago

Which is the inverse of the function a(d)=5d-3? And use the definition of inverse functions to prove a(d) and a-1(d) are inverse

Drupady [299]

Answer:

$a'(d) = \frac{d}{5} + \frac{3}{5}$

$a(a'(d)) = a'(a(d)) = d$

Step-by-step explanation:

Given

$a(d) = 5d - 3$

Solving (a): Write as inverse function

$a(d) = 5d - 3$

Represent a(d) as y

$y = 5d - 3$

Swap positions of d and y

$d = 5y - 3$

Make y the subject

$5y = d + 3$

$y = \frac{d}{5} + \frac{3}{5}$

Replace y with a'(d)

$a'(d) = \frac{d}{5} + \frac{3}{5}$

Prove that a(d) and a'(d) are inverse functions

$a'(d) = \frac{d}{5} + \frac{3}{5}$ and $a(d) = 5d - 3$

To do this, we prove that:

$a(a'(d)) = a'(a(d)) = d$

Solving for $a(a'(d))$

$a(a'(d)) = a(\frac{d}{5} + \frac{3}{5})$

Substitute $\frac{d}{5} + \frac{3}{5}$ for d in $a(d) = 5d - 3$

$a(a'(d)) = 5(\frac{d}{5} + \frac{3}{5}) - 3$

$a(a'(d)) = \frac{5d}{5} + \frac{15}{5} - 3$

$a(a'(d)) = d + 3 - 3$

$a(a'(d)) = d$

Solving for: $a'(a(d))$

$a'(a(d)) = a'(5d - 3)$

Substitute 5d - 3 for d in $a'(d) = \frac{d}{5} + \frac{3}{5}$

$a'(a(d)) = \frac{5d - 3}{5} + \frac{3}{5}$

Add fractions

$a'(a(d)) = \frac{5d - 3+3}{5}$

$a'(a(d)) = \frac{5d}{5}$

$a'(a(d)) = d$

Hence:

$a(a'(d)) = a'(a(d)) = d$

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2 years ago

3х - 3 = -12<br> What is the solution to this equation?

Lapatulllka [165]

3x-3=-12

3x=-9

X=-3

I am in calculus. Algebra is easy

5 0

2 years ago

Pls do this one i have quiz at this so ya pla do it i only have 20 minutes pls​

Pls do this one i have quiz at this so ya pla do it i only have 20 minutes pls