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
Andreas93 [3]
2 years ago
11

I can't get to get this right can you please help me​

Mathematics
2 answers:
k0ka [10]2 years ago
8 0

Answer:

The domain is the span of x-values covered by the function.

From the graph, we can see that the graph covers all the x-values from x=-7 to x=4.

However, note that closed and open circles. There is an open circle at x=-7, which means that the domain excludes x=-7. However, the circle at x=4 is closed, meaning it is included in the domain.

Therefore, the domain is, in interval notation:

(-7,4](−7,4]

We use parentheses on the left because we do not include -7. And we use brackets on the right because we do include the 4.

And in set notation, this is:

\{x|-7

monitta2 years ago
7 0

Answer:

(-7,4]\text{ or }\{x|-7

Step-by-step explanation:

The domain is the span of x-values covered by the function.

From the graph, we can see that the graph covers all the x-values from x=-7 to x=4.

However, note that closed and open circles. There is an open circle at x=-7, which means that the domain excludes x=-7. However, the circle at x=4 is closed, meaning it is included in the domain.

Therefore, the domain is, in interval notation:

(-7,4]

We use parentheses on the left because we do not include -7. And we use brackets on the right because we <em>do </em>include the 4.

And in set notation, this is:

\{x|-7

You might be interested in
The wildflowers at a national park have been decreasing in numbers. There were 300 wildflowers in the first year that the park s
Scorpion4ik [409]
Although the number of new wildflowers is decreasing, the total number of flowers is increasing every year (assuming flowers aren't dying or otherwise being removed). Every year, 25% of the number of new flowers from the previous year are added.
The sigma notation would be:
∑ (from n=1 to ∞) 4800 * (1/4)ⁿ , where n is the year. 
Remember that this notation should give us the sum of all new flowers from year 1 to infinite, and the values of new flowers for each year should match those given in the table for years 1, 2, and 3
This means the total number of flowers equals:
Year 1: 4800 * 1/4 = 1200 ]
+
Year 2: 4800 * (1/4)² = 300
+ 
Year 3: 4800 * (1/4)³ = 75
+  
Year 4: 4800 * (1/4)⁴ = 18.75 = ~19 (we can't have a part of a flower)
+
Year 5: 4800 * (1/4)⁵ = 4.68 = ~ 5
+ 
Year 6: 4800 * (1/4)⁶ = 1.17 = ~1
And so on. As you can see, it in the years that follow the number of flowers added approaches zero. Thus, we can approximate the infinite sum of new flowers using just Years 1-6:
1200 + 300 + 75 + 19 + 5 + 1 = 1,600

8 0
3 years ago
Solve this with your work shown. (50 POINTS.)​
Ket [755]

top problems:

1-) x²-2x-8

<h2>(x-4)(x+2)</h2>

---------------------

2-) 4s²-4s+1

<h2>(2s-1)²</h2>

---------------------

3-) 6x²-3-7x

<h2>(2x-3)(3x+1)</h2>

---------------------

4-) 4u²+8u

<h2>4u(u+2)</h2>

---------------------

5-) t²-15

<h2>2t</h2>

---------------------

6-) 3x²-x-4

<h2>(3x-4)(x+1)</h2>

bottom problems:

1-) \frac{1}{4},-1

y=x²+\frac{3x}{4}-\frac{1}{4}

---------------------

2-)\sqrt{2},\frac{1}{3}

<h2>y=x²-\frac{x}{3}-\sqrt{2}x+\frac{\sqrt{2} }{3}</h2>

---------------------

3-) 0, √5

<h2>y=x²-x√5</h2>

---------------------

4-) 1,1

<h2>y= x²-2x+1</h2>

---------------------

5-)-\frac{1}{4}, \frac{1}{4}

<h2>y=x²-\frac{1}{16}</h2>

---------------------

6-) 4,1

<h2>y=x²-5x+4</h2>

7 0
2 years ago
Solve 7x 6 &lt; 3(x - 2).{x | x &gt; -3}{x | x &lt; -3}{x | x &lt; -2}{x | x &lt; 0}
Lelechka [254]
7x + 6 < 3(x - 2)
7x + 6 < 3x - 6
7x - 3x < -6 - 6
4x < -12
x < -12/4
x < -3

<span>{x | x < -3}</span>

6 0
3 years ago
A 30-inch segment is cut into two parts whose lengths have the ratio 3 to 5. Find the length of the shortest part. 6 2 11. 25 3.
attashe74 [19]
3 parts section is 11.25” long
4 0
2 years ago
Clarence works at least 5 hours but not more than 7 hours. he earns $11.60 per hour. the function f(t)=11.6t represents the amou
Anarel [89]
Thank you for posting you question here at brainly. I hope the answer will help you. The <span> practical domain and the practical range for this situation is below:

</span>D: [5, 7]
<span>R: [58, 81.2]
</span>
Feel free to ask more questions here at brainly. I'd be happy to answer. 
3 0
3 years ago
Other questions:
  • A man earned $4000 the first year he worked. If he received a raise of $600 at the end of each year, what was his salary during
    12·1 answer
  • The sponsors of the marching band provided 128 sandwiches for a picnic. After the picnic, s sandwich’s are left.
    15·1 answer
  • 1/4 + 1/2t =4, what’s t?
    11·2 answers
  • Shley solved the exponential equation 3x+1 = 15 and her work is shown below. what is the first step she did incorrectly? step 1:
    14·1 answer
  • What is the value of x?
    13·1 answer
  • Help pleaseI don’t understand
    15·2 answers
  • Solve the following problems
    15·1 answer
  • Choose all of the equivalent ratios for 64:80<br> 8:12<br> 32:40<br> 4:5<br> 16:24<br> 120:160
    10·2 answers
  • Find the H+ concentration of of a solution that has a pH solution of 12.24
    14·1 answer
  • PLEASE HELP ME I'M DESPERATE.<br> Delta Math Question!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!