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3 years ago

Help 20 POINTS “explain how to write the solution to the given inequality in interval notation

Mathematics

2 answers:

Mrac [35]3 years ago

8 0

My answer is -4,-1. I hope this helps you a lot.

defon3 years ago

4 0

Interval notation uses an ordered pair inside brackets. The ordered pair is ...

... lower end of the interval, upper end of the interval

The brackets are square if the endpoint is included (solid dot, or "≤"), and they are curved (parentheses) if the endpoint is not included (open dot, or "<"). The brackets don't have to match.

Here, your interval is -4 ≤ x ≤ -1, so we use square brackets around the end values -4 and -1.

... [-4, -1]

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PLEASE HELP I AM SO CONFUSED

soldi70 [24.7K]

Answer:

Option D, 1

Step-by-step explanation:

Step 1: Determine what x1, x2, y1, y2 are

Slope = $\frac{y2 - y1}{x2-x1}$

(x1, y1) is (2, 8)

(x2, y2) is (6, 12)

Step 2: Plug into the formula to get the slope

Slope = $\frac{y2 - y1}{x2-x1}$

Slope = $\frac{12 - 8}{6 - 2}$

Slope = $\frac{4}{4}$

Slope = 1

Answer: Option D, 1

5 0

3 years ago

Read 2 more answers

A G.P has its 3rd term and 7th term as 45 and 3645 respectively. what is the product of its 2nd and 4th

Ede4ka [16]

Answer:

2,025

Step-by-step explanation:

Given:

Third term ar² = 45

Seventh term ar⁶ = 3,645

Find:

ar x ar³

Computation:

From 7th term / 3rd term

ar⁶ / ar² = 3,645 / 45

r⁴ = 81

r = 3

So,

ar² = 45

a(3)² = 45

a = 5

So,

ar x ar³

(5)(3) x (5)(3)³

2,025

3 0

3 years ago

Write down a formula for the nth term for each number pattern below

tresset_1 [31]

Answer:

Step-by-step explanation:

$a_{n} =2(2n+1)$

$a_{n} =1-3n\\$

4 0

2 years ago

A grapefruit has a peel that is 1cm thick and a total diameter of 12cm. What percentage of volume of the grapefruit is the peel?

ira [324]

Answer:

0.3056 or 30.56%

Step-by-step explanation:

The volume of the grapefruit with the peel is:

$V_p=\frac{4 \pi (d/2)^2}{3}\\V_p=\frac{4 \pi (12/2)^2}{3}\\V_p=48 \pi$

When removing the peel, the grapefruit diameter becomes 10 cm (take out 1 cm of peel from each side). The volume of the grapefruit without the peel is:

$V_n=\frac{4 \pi (d/2)^2}{3}\\V_n=\frac{4 \pi (10/2)^2}{3}\\V_n=33.333 \pi$

The percentage of the volume correspondent to the peel is given by the difference between both volumes, divided by the total volume:

$\%P = \frac{48\pi - 33.333\pi}{48\pi}\\ \%P =0.3056 = 30.56\%$

30.56% of volume of the grapefruit is the peel.

4 0

3 years ago

3 7/18 + = 6 1/18 what is the answer and method to this problem please?

Colt1911 [192]

3 7/18
+ 6 1/18
_______
9 4/9

8 0

3 years ago