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Vaselesa [24]
3 years ago
7

Solve the following inequality.

Mathematics
1 answer:
user100 [1]3 years ago
5 0

Answer:

A

Step-by-step explanation:

Given

21 ≤ - 3(x - 4) < 30 ← divide all 3 intervals by - 3

Remembering to reverse the direction of the signs as a result of dividing by a negative quantity

- 7 ≥ x - 4 > - 10 ← add 4 to each interval

- 3 ≥ x > - 6, that is

- 6 < x ≤ - 3 → A

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100 points!!!
Bogdan [553]

Answer:

(1, 5)

Step-by-step explanation:

The solution to the system of equations is the point of intersection of the two lines.  From inspection of the graph, the point of intersection is at (1, 5).

<u>Proof</u>

The solution to a system of equations is the point at which the two lines meet.  

⇒ g(x) = f(x)

⇒ 3x + 2 = |x - 4| + 2

⇒ 3x = |x - 4|

⇒ 3x = x - 4   and   3x = -(x - 4)

⇒ 3x = x - 4

⇒ 2x = -4

⇒ x = -2

Inputting x = -2 into the 2 equations:

⇒ g(-2) = 3 · -2 + 2 = -4

⇒ f(-2) = |-2 - 4| + 2 = 8

Therefore, as the y-values are different, x = -2 is NOT a solution

⇒ 3x = -(x - 4)

⇒ 3x = 4 - x

⇒ 4x = 4

⇒ x = 1

Inputting x = 1 into the 2 equations:

⇒ g(1) = 3 · 1 + 2 = 5

⇒ f(1) = |1 - 4| + 2 = 5

Therefore, as the y-values are the same, x = 1  IS a solution

and the solution is (1, 5)

8 0
3 years ago
At the grocery store, Luis brought 10 bananas and 4 apple. What are three different ways to write the 4 ratio of apples to banan
Reil [10]
10/4, 4:10 and, 10 to 4.
If that helps make sure to 5 star and brainliest! <3 

-Procklownyt

6 0
3 years ago
Simplify ( 16- sq root of 11) / -2
Usimov [2.4K]
(16 - Sqrt(11))/(-2)
= -8 +Sqrt(11)/2
4 0
3 years ago
What is 7/45 simplified
Akimi4 [234]

Answer:

it can not go any more

Step-by-step explanation:

7/45 is the simplified terms

8 0
3 years ago
Find the arc length of the
Agata [3.3K]

Answer:

Circle circumference = radius * 2 * PI

Arc Length = radius * 2 * PI * Central Angle / 360 degrees

Arc Length = 7 * 2 * PI * (1/4)

= 3.5 * PI

= 10.9955742876

Arc Length = 10.996 (rounded)

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
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