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2 years ago

It's this!!!!!!!!!! pls help!!!!!!!!

Mathematics

1 answer:

just olya [345]2 years ago

3 0

6. 16x60x24=23040cm3 of water, 23040-7200=15840cm3 ans: 15840cm3
1. 10cm3
4. 250cm3
5. 3600-2880=720 ans: 720 cm3

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What is $920.86 rounded to the nearest 100 dollars?

nlexa [21]

Answer:

$920.86 is rounded to $900

Step-by-step explanation:

The 9 is the hundred place, the 2 is the ten place, the 0 is the ones place, 8 is the tenth, 6 is the hundredth.

So nine-hundred and twenty is rounded to 900.

This is because any number that is 5 or below stays the same, so if the 920 is instead 960, you would round the answer to 1000.

So, 920.86 is rounded to 900.

8 0

3 years ago

A "rigid motion" refers to which of the following?

denpristay [2]

Answer:

change in neither size nor shape

7 0

3 years ago

Read 2 more answers

Which of the following statements is correct? A. The relationship between two variables is linear whether it is represented by

LuckyWell [14K]

Answer:

C. The relationship between two variables is linear when it is represented by a straight line and nonlinear when it is represented by a curved line.

Step-by-step explanation:

The definition of "linear" is "related by a straight line". The definition of "non-linear" is "not related by a straight line." One simply needs to understand the definitions in order to choose the correct statement.

6 0

3 years ago

Let f(x)=x2−2x−4 . What is the average rate of change for the quadratic function from x=−1 to x = 4?

goblinko [34]

Answer:

The average rate of change for f(x) from x=−1 to x = 4 is, 1

Step-by-step explanation:

Average rate A(x) of change for a function f(x) over [a, b] is given by:

$A(x) = \frac{f(b)-f(a)}{b-a}$

As per the statement:

$f(x) = x^2-2x-4$

we have to find the average rate of change from x = -1 to x = 4

At x = -1

$f(-1) = (-1)^2-2(-1)-4 = 1+2-4 = -1$

and

at x = 4

$f(4) = (4)^2-2(4)-4 = 16-8-4 = 4$

Substitute these in [1] we have;

$A(x) = \frac{f(4)-f(-1)}{4-(-1)}$

⇒ $A(x) = \frac{4-(-1)}{4+1}$

⇒ $A(x) = \frac{5}{5}$

Simplify:

A(x) = 1

Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1

4 0

3 years ago

Read 2 more answers

Given function of f(x) = 2x - 1 and fg(x) = 10x + 3, find the function of g(x)

denis-greek [22]

Answer:

The function of g(x) = 5x + 2

Step-by-step explanation:

Let us use the composite function to solve the question

∵ f(x) = 2x - 1

∵ f(g(x)) = 10x + 3

→ f(g(x)) means substitute x in f(x) by g(x)

∴ f(g(x)) = 2[g(x)] - 1

→ Equate the two right sides of f(g(x))

∴ 2[g(x)] - 1 = 10x + 3

→ Add 1 to both sides

∴ 2[g(x)] - 1 + 1 = 10x + 3 + 1

∴ 2[g(x)] = 10x + 4

→ Divide each term into both sides by 2

∵ $\frac{2[g(x)]}{2}$ = $\frac{10x}{2}$ + $\frac{4}{2}$

∴ g(x) = 5x + 2

∴ The function of g(x) = 5x + 2

7 0

3 years ago