Answers
Answer:
Step-by-step explanation:
When answering questions like this, we have to first decide which function we have to use. This is done by looking at the given domains (the x≤-2 etc). The first question ( f(-2) ), means we have to choose the function that applies to the x-coordinate -2. x=-2 is part of the section x ≤-2 since the sign means larger or equal to -2. Hence, we use the function 2x+8 to calculate f(-2). After finding this, the solving is relatively easy, just fill in the x-coordinate:
f(-2) = 2 * -2 + 8 = -4 + 8 = 4
The second one needs the same method. x=3 belongs in the section
-2 < x ≤ 3, since the final part means x is smaller or equal to 3, and in this case it is. Hence we use [tex]x^{2} -3[/tex] here:
f(3) = 3² - 3 = 9 - 3 = 6
I hope this helps! Feel free to reach out if you still have questions
Related Questions
33 divide by 9537 plssss helpp me
Answers
Answer:
1/289 or 0.03462749213
Step-by-step explanation:
33 / 9537
= 1/289 or 0.03462749213
Answer:
[tex]33 \div 9537 \\ \\ \frac{33}{9537} = \frac{1}{289} = 0.00346[/tex]
I hope I helped you^_^
Find the inverse of the following function: f(x)={(2, 4), (4, 16), (6, 36), (8, 64)}
Answers
Switch all x and y-values in the function.
Help.. Suppose Q is the midpoint of PR
Answers
Answer:
[tex]3x+41[/tex] or 38
Step-by-step explanation:
If Q is the midpoint of Line PR, then lines PQ and QR add up to equal Line PR. We then get
[tex]PQ=6x+25\\QR=16-3x\\PQ+QR=PR\\6x+25+16-3x=PR\\3x+41=PR\\[/tex]
If you want to know the exact number that PR is, we can do additional steps where PQ = QR.
[tex]PQ=6x+25\\QR=16-3x\\PQ=QR\\6x+25=16-3x\\9x+25=16\\9x=-9\\x=-1\\\\3x+41=PR\\3(-1)+41=PR\\-3+41=PR\\38=PR\\PR=38[/tex]
Help help help help please
Answers
Answer:
in my opinion
Step-by-step explanation:
b i would say it depends on how hard or how soft you throw it, and for C what kind of ball did you use or if you didn't lol just say this. I used a small ball and it was 2.5m
someone help me please
Answers
Answer:
8
if u look closely,triangle abc has 4 identical triangle def in it.
The perimeter of the school crossing sign is 102 inches. What is the length of each side?
Equation: _ =102
s=_
Question 2
Label the length of each side in inches
Answers
Answer:
1) s=15
2) 15, 21, 21, 15, 30 from left to right
Step-by-step explanation:
First you turn this into an equation: s+6+s+6+s+s+2s
Collect like terms: 4s+ 12 + 2s
Simplify: 6s+12
Bring back into a full equation: 6s+12=102
Simplify= 102-12=6s
90= 6s
90/6=s
s=15
Then bring back into sides: Left side and right sides are 15 as s= 15
15+6= 21 so both top sides are 21
2×15=30
So it goes in the order from left to bottom clockwise:
15, 21, 21, 15, 30
Hope this helps, if you need anymore help message me
:)
Whats the answer for this? question? D:
Answers
Answer:
4
Step-by-step explanation:
x - 8
===== + 5
4
Let x = 4
4 - 8
==== + 5
4
-4
=== + 5
4
-1 + 5
4
Will mark 1st person as brainliest
Answers
Answer:
-23/9
Hope it helps! Leave a 5 star rating and a comment so I know it helped you all! Thanks! :D
Solve the following:
(20 - 52)(16 +22)
-23 + (3 x 22)
Give your answer in simplest form.
Answers
Answer:
-25
Step-by-step explanation:
=(20-25)(16+4)
-8+12
= -5×20
4
= -100
4
= -25
solve: 8+2x-12=58
i need help please asap.
Answers
Answer: x=31
Step-by-step explanation:
-4 + 2x=58
2x-4=58
2x-4+4=58+4
2x=62
2x/2=62/2
x=31
Answer:
x = 31
Step-by-step explanation:
- Combine all like terms;
8+2x-12=58
2x -4 = 58
- Add 4 to both sides.
2x = 62
- Divide both sides by 2.
x = 31
Miguel spends $20 a day for 3 days. He earns $17 a day for 5 days. Does Miguel end up with more or less money than he started with? By how much?
Answers
Answer:
more money by 25 dollars
Step-by-step explanation:
Spent:
20 *3 = 60
Made:
17*5 =85
-60+85 = 25
Het made 25 dollars over the period
Answer:
If Miguel spent $20 a day for 3 days that's $60 spent.
If he makes $17 a day for 5 days that's $85.
So that means that he ended up with more money than he started with.
he ended up with $25 more than what he started with.
Hope it helps!
Four people have measured the height of a wall using different methods. Their results are shown in the table. Order their measurements from least to greatest.
Answers
Solve by using Substitution method-
-2x+9y=-9
9x-2y=2
Step by step needed asap
Answers
Answer:
(0,-1) I could be wrong
Step-by-step explanation:
Answer:
Step-by-step explanation:
-2x+9y=-9 (solve for x)
-2x= -9y-9
X = - 9y/-2 - - 9/2. X = 9y/2 + 9/2
9(9/2y+9/2)-2y=2
81y/2 + 81/2 - 2y = 2
81y/2 - 2y = 2 - 81/2. 81/2 - 2 = 77/2 and -81/2 +2 = -77/2
77/2 y = - 77/2
y = (-77/2)/(77/2)
y = - 1
what is the answer of 81g^2 - 36f^2 ?????
Answers
Answer:
(9g - 6f)(9g + 6f)
Step-by-step explanation:
81g^2 - 36f^2 =
(9g)² - (6f)² =
(9g - 6f)(9g + 6f)
1) Erin bought 3 lbs. of bananas. If bananas are $0.54 per pound how much did Erin spend?
2) At lunch Sherman ate a sandwich, 2 boxes of raisins, 38 Cheez-its, and a cookie. He still has 14
Cheez-its in the bag. How many were in the bag to begin with?
3) Sharon is buying 5 shirts for $6.99 each. If she has two $20 bills what will her change be?
HELP QUICKK
Answers
Answer:
1) $1.62 2) 52 Cheez-its 3) Her change will be $5
Step-by-step explanation:
1) 3 x 0.54 = 1.62
2) 38 + 14 = 52
3) 5 x 7 = 35
20 x 2 = 40
40 - 35 = 5
Hope this helps :)
p^7 x p = ?
please answer
Answers
Answer:
Your answer is p^8
Step-by-step explanation:
p^7 × p
p^7 + 1
p^8
Please!
Mark me brainlist
Answer:
[tex]p^{8}[/tex]
Step-by-step explanation:
In exponent multiplication, if base are same, add the exponents
[tex]a^{m}*a^{n} = a^{m+n}\\\\\\p^{7}* p = p^{7+1} = p^{8}[/tex]
Which of the following shows 3x + 15 + 6x – 7 + y in simplest terms?
9x + y + 8
26xy
18x + 8y
9x + 22 + y
Answers
Answer:
9x + y + 8 this is the correct answer
the food service industry is projected to grow from 13.1 million to nearly 14.4 million employees by 2023.calculate the percent increase
Answers
Answer: 9.92% increase
Step-by-step explanation:
(14.4MM-13.1MM)/(13.1MM) = 0.099237 0.0992 to 3 sig figs
9.92% increase
The vertex form of the equation of a parabola is y = 2(x+ 4)2 - 7.
What is the standard form of the equation?
Answers
Answer:
100%
Step-by-step explanation:
your answer is 4x + 9
Yolanda plans to watch 3 movies each month. Write an equation to represent the total number of movies n that she will watch in m months.
Answers
Answer:
3m=n
Step-by-step explanation:
Which inequality is true?
Answers
C, because π ≈ 3,14 so 9π = 9 · 3,14 = 28,26 > 27
please help!! 2 - 7 when x = - 1
Answers
2-7=-5?
What’s x=-1 information for?
3x + 2y for x = 8 and y = 10 = ??
Answers
Answer:
4
Step-by-step explanation:
3x + 2y
Let x = 8 and y = 10
3*8 + 2* 10
Multiply
24 + 20
Add
44
Plug and substitute the expression. If x = 8 and y = 10.
3x + 2y3(8) + 2(10)24 + 2044Answer:The answer is 44The teacher plans to buy pillowcases for his students. Each student needs 55 cm of material and there are 83 students. how many does the teacher need to buy for his students ???
Answers
Answer:
4565 cm
Step-by-step explanation:
55 * 83
What is the diameter of 11.94 cm circumference
Answers
Question
What is the diameter of 11.94 cm circumference
Answer:
Soln,
We know that diameter = * 2 radius
radius = 11.94/2= 5.97 half of diameter and when you multiply with 2 ,Then it comes 11.94cm
Now
Step-by-step explanation
Circumference = 2πr
11.94 = 2*22/7*r
11.94 = 6.28r
r= 11.94/6.28
therefore, r= 1.90 cm
Now
We know that diameter = * 2 radius
diameter = 1.90*2 = 3.80 cm
answer checking,
Circumference = 2πr
c= 2*22/7*1.90
therefore c = 11.94 cm
ans proved
plz mark me brainliest and thanks
have a good day ahead ; )
X/3 - X/6 = 2
What is the value of x how do I do it?
Answers
Answer:
Value of X is 18
Step-by-step explanation:
x/3 - x/6 = 2
multiply first fraction by 3 so u get X by its self then multiply the 2 by 3
x - x/6 = 6
then multiply the fraction by 6 to get X by itself then multiply the 6 by 6 because what u do to one side u have to do to the other
2x/2 = 36/2
x= 18
1+sinx+cosx/1+sinx-cosx=1+cosx/sinx help pls by proving
Answers
Answer:
Below.
Step-by-step explanation:
I'll write sin x as s and cos x as c so we have:
(1 + s +c)/(1 + s - c) = (1 + c)/s
Cross multiplying:
s + s^2 + cs = 1 + s - c + c + cs - c^2
s + s^2 + cs = 1 + s + cs - c^2
s^2 + c^2 + s - s + cs - cs = 1
s^2 + c^2 = 1.
- that is sin^2 x + cos^2 x = 1 which is a known identity.
Therefore the original identity is proved.
You babysat your neighbors children and they paid you $45 for 6 hours what's the independent variable
Answers
Need the awnser for 8 and 9 please help
Answers
Answer:
12-5xy and 5r-7
Step-by-step explanation:
Pls help with this algebra ( it’s about equations with variables on both sides) unit practice 1-4).
Answers
Answer:
x = -5
2.1x+45.2 = -7.3-8.4x
10.5x+45.2 = -7.3
10.5x = -52.5
x = -5
