All categories

3 years ago

What it the inequality for this interval? (-00, 2] u (8,00)

1 answer:

5 0

Interval notation tells you what values where the function is defined. It’s defined all the way from negative infinity to positive 2, then there’s a gap all the way to positive 8, then we continue on to positive infinity. So x, would be literally every single number besides the number between 2 and 8. Oh and don’t forget that brackets mean included, so 2 is also a value that’s acceptable.

x is less than or equal to 2
and
x is greater than 8

You might be interested in

How do you do you solve this question

Anastasy [175]

Well it is area so u multiply 17 by 17 which is 289

5 0

2 years ago

Read 2 more answers

5+1+(-3)+...+(-395)=

sleet_krkn [62]

$= \frac{(-395+5)(-395-5-4)}{2.(-4)} \\ \\ \\=-19695 \\ \\ \\ Good Luck:))$

5 0

3 years ago

A cylindrical jar's lid has a radius of 4 inches. If the volume is 351.68 in , approximately what is the height of the jar?

balu736 [363]

Answer:

7 inches

Step-by-step explanation:

The volume of a cylinder is calculated using

$V = \pi {r}^{2}h$

where r =4 inches is the radius and V=351.68 is the volume.

To find the height of the jar, we substitute these values and solve for h.

$351.68 = 3.14 \times {4}^{2} \times h$

$351.68 = 50.24h$

Divide both sides by 50.24 to get:

$h = \frac{351.68}{50.24}$

h=7 inches

Therefore the height of the jar is 7 inches

7 0

2 years ago

If a man earns $200 for his first 40 hours of work in a week and then is paid one and one half times his regular rate for any ad

Luba_88 [7]

<span>200/40=5 5/2=2.5 2.5+5=7.5 30/7.5 = 4 hours</span>

5 0

3 years ago

Use an algebraic approach to solve the problem.

qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 = ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0

2 years ago