1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
My name is Ann [436]
2 years ago
5

How do I solve this inequality?

Mathematics
1 answer:
djverab [1.8K]2 years ago
5 0

Step-by-step explanation:

9 ≤ |4x + 7|

9 ≤ 4x + 7

9 - 7 ≤ 4x

2 ≤ 4x

2/4 ≤ x

<h2>1/2 ≤ x</h2>

9 ≤ |4x + 7|

9 ≤ -(4x + 7)

9 ≤ -4x - 7

9 + 7 ≤ -4x

16 ≤ - 4x

16/-4 ≤ x

<h2>-4 ≤ x </h2>

<h2>{-4 ≤ x ≤ 1/2} </h2>
You might be interested in
Which of these pairs of numbers differ by 495 when they are squared? Choices:A.17 and 19 B:21 and 30 C.27 and 18 ,or D.23 and 32
alukav5142 [94]
The answer is B because 30^2 - 21^2 = 495
6 0
3 years ago
Kai can wrap 42 gifts in 3 hours. Answer the following questions, assuming that Kai can continue wrapping gifts at that same rat
fomenos

Answer:

1. 336

2. 9

3. 14

Step-by-step explanation:

He wraps 42 gifts/3hours

24 hours is 8 "3 hours"

42 hours per 3 gifts * 8 "3 hours" = 336 gifts

126 gifts is 3 "42 gifts"

3 hours per 42 gifts * 3 "42 gifts" = 9 hours

He wraps 42 gifts/3hours

divide these values by 3 and you get  14 gifts/one hour

14 gifts every one hour

7 0
2 years ago
Urgent!!
STALIN [3.7K]

<u>Given</u>:

Given that the graph of the quadratic function.

We need to determine the value of a in the function's equation.

<u>Value of a:</u>

The value of a can be determined using the formula,

y=a(x-h)^2+k

where (h,k) is the vertex and a is a constant.

From the graph, it is obvious, that the vertex of the parabola is (0,9).

Thus, substituting the vertex (h,k) = (0,9) in the above formula, we get;

y=a(x-0)^2+9

y=ax^2+9  -------- (1)

Let us substitute any one of the coordinate that the graph passes through to determine the value of a.

Let us substitute the point (3,0) in the equation (1), we have;

  0=a(3)^2+9

  0=9a+9

-9=9a

-1=a

Thus, the value of a is -1.

Hence, Option B is the correct answer.

3 0
3 years ago
Please I really need help on this!<br>​
Svetradugi [14.3K]

Step-by-step explanation:

output is 3 times of input so it's like this x ➡ 3x

4 0
3 years ago
Determine the X- and Y- intercepts for the graph defined by the given equation. Y= -8
Cloud [144]
Y = -8 simply means for every x coordinate the y coordinate is -8, therefore it creates a horizontal line at y = -8.

X intercepts are when y = 0. Y intercepts are when x = 0.

In this case of the line, y = -8 there is no x intercept because y doesn’t equal 0.

However there is a y intercept at (0,-8) because y is -8 for every input including 0.

If you have any other questions feel free to ask.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What the answer for <br> 12(x+3)=4(2x+9)+4x
    5·1 answer
  • Can someone help me figure this out
    7·2 answers
  • ASSIGNMENTS
    12·1 answer
  • How do you find a scale factor?
    15·1 answer
  • Ticket Prices for a Science museum are $18 for adults and $12 for students. If $162 is collected from a group of 12 people, How
    12·1 answer
  • a triangular land having area 36m²and perimeter 84 m has length of the edge 26m. Calculate the measure of remaining two sides​
    8·1 answer
  • What is the perpendicular slope of m=0?
    10·2 answers
  • Can someone please help me I will mark u brilliant
    9·2 answers
  • . Sofia learned 10 recipes to create party dishes. She learned these recipes in two weeks. How many recipes can Sofia learn in 5
    10·2 answers
  • Which of these functions are linear?<br> Choose all that apply.<br> I need help pleaseeee
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!