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2 years ago

Do the ratios 10:12 and 20:24 form a proportion?

Mathematics

1 answer:

mezya [45]2 years ago

4 0

Yes, they both have the same proportion (5:6)

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Solve the inequality and express your answer in interval notation<br> -10 <-2x+ 6<-2

cupoosta [38]

Answer:

4<x<8 interval notation is (4,8)

Step-by-step explanation:

hope this helps

5 0

2 years ago

Given the function f(x) = x² + 8x + 12, determine the average rate of change of

Kitty [74]

The average rate of change of a (continuous) function f(x) over an interval [a, b] is given by the so-called difference quotient,

$\dfrac{f(b)-f(a)}{b-a}$

Here we have f(x) = x² + 8x + 12 and the interval is [-10, -2], so the ARoC of f(x) on this interval is

$\dfrac{f(-2) - f(-10)}{-2 - (-10)} = \dfrac{0 - 32}8 = \boxed{-4}$

3 0

1 year ago

How Many Solutions are there to the equation below

ExtremeBDS [4]

No solutions would be correct so 0

7 0

3 years ago

Read 2 more answers

What is the expression in factored form?<br> 9x^2-4<br><br> show all work

ziro4ka [17]

Answer:

$(3x+2)(3x-2)$

Step-by-step explanation:

we know that

A binomial is a Difference of Squares if both terms are perfect squares

we have

$9x^{2} -4$

$9x^{2}=(3x)^{2}$ ---> is a perfect square

$4=(2)^2$ ----> is a perfect square

Both terms are perfect squares

The difference of squares is

$9x^{2} -4=(3x+2)(3x-2)$ ----> by difference of squares

7 0

2 years ago

Your friend has $100 when he goes to the fair he spends 10 to interfere in 20 on food Rides at the fair cost two dollars per rid

Hunter-Best [27]

Answer:

$70-$2x

Step-by-step explanation:

In the beginning, your friend spent $30 on interference and food, leaving him or her $70.

Since every ride costs $2, you multiply the amount of rides he rode by 2 to get how much he spent.

He subtracted that from the money he had which was $70.

Therefore, the equation is $70 - $2x

6 0

3 years ago