Answer:
b
Step-by-step explanation:
100 dollars month
100
plus
100+
0.15 per text
100+15t
Let f left-parenthesis x right-parenthesis equals 2 x squared plus x minus 3 and g left-parenthesis x right-parenthesis equals x minus 1. Perform the indicated operation, then find the domain. left-parenthesis f minus g right-parenthesis left-parenthesis x right-parenthesis A. x squared minus 4; domain: positive real numbers B. 2 x squared minus 4; domain: all real numbers C. x squared minus 4; domain: all real numbers D. 2 x squared minus 2; domain: all real numbers
Answer:
The option D) is correct "2 x squared minus 2; domain: all real numbers "That is [tex](f-g)(x)=2x^2-2[/tex] and domain is all real numbersStep-by-step explanation:
Given that the functions f and g are defined by
[tex]f(x)=2x^2+x-3[/tex] and [tex]g(x)=x-1[/tex]
To perform the indicated operation (f-g)(x) and then find the domain :To find (f-g)(x)
(f-g)(x)=f(x)-g(x)Substitute the values of the functions we get
[tex](f-g)(x)=f(x)-g(x)=2x^2+x-3-(x-1)[/tex]
[tex]=2x^2+x-3-1(x)-1(-1)[/tex]
[tex]=2x^2+x-3-x+1[/tex]
[tex]=2x^2-2[/tex] ( by adding the like terms )
Therefore [tex](f-g)(x)=2x^2-2[/tex] and domain is all real numbersThe option D) is correct "2 x squared minus 2; domain: all real numbers "The value of (f-g)(x) is [tex]2x^2-2[/tex]. Thus, the correct option is (D)
Two different functions are given that are as follow:
[tex]f(x)=2x^2+x-3[/tex]
[tex]g(x)=x-1[/tex]
We need to determine the value of the composite function that is (f-g)(x).
Now, by using the property of the composite function (f-g)(x) can also be written as:
[tex](f-g)(x)=f(x)-g(x)[/tex]
Substitute the values of both the functions and solve it further for (f-g)(x).
[tex]\begin{aligned}(f-g)(x)&=(2x^2+x-3)-(x-1)\\&=2x^2+x-3-x+1\\&=2x^2-2\\&=2(x^2-1)\end{aligned}[/tex]
Thus, the value of (f-g)(x) is [tex]2x^2-2[/tex]. Thus, the correct option is (D)
To know more about it, please refer to the link:
https://brainly.com/question/5614233
Solve the system of equations.
y=x+57
y=8x+15
Answer:
x=6, y= 63
Step-by-step explanation:
Please see attached picture for full solution.
is this true or false
Answer:
true is the answer off this question
Answer:
True
Step-by-step explanation:
3n would mean 3 times n where 3 is the coefficient.
what is the sum of angles in a triangle
Answer: 180 degrees
Step-by-step explanation:
A triangle has 3 sides which is always equal to 180 degrees.
I hope this helps.
Answer:
180 degrees
Step-by-step explanation:
All triangles have three sides and are suplementary (meaning they add up to 180 degrees) so the answer to your question is 180 degrees.
Use a power of ten to estimate the product.
52.6 × 9
450
526
540
500
Answer:
A
Step-by-step explanation:
3y+6-y Please help! I'm awful at math
Step-by-step explanation:
So what are you looking for with that equation?
What is X+x+x+2 equivalent to?
Answer:
3X+2
Step-by-step explanation:
X+X+X+2=3X+2
4. A video rental store rents movies at $3.95 for the first night, plus $1.25 for each additional night. When you return your movie, you pay $7.70. How many extra nights did you keep the movie?
Answer:
3 nights
Step-by-step explanation:
Set up an equation that represents the problem:
y = 1.25x + 3.95
Where y is the total cost and x is the number of additional nights you rent the movie
Substitute:
7.70 = 1.25x + 3.95
Subtract 3.95 on both sides:
7.70 = 1.25x + 3.95
-3.95 -3.95
3.75 = 1.25x
Divide by 1.25 on both sides:
3.75 = 1.25x
/1.25 /1.25
3 = x
Therefore, you kept the movie for 3 additional nights.
Answer:
3
Step-by-step explanation:
Dean selects Teakwood stones
and Buckskin stones to pave a path in front
of his house. How many meters long will
each set of one Teakwood stone and one
Buckskin stone be?
Answer:
You didnt give us data to use
for example TEAKWOOD IS 3 METER LONG AND PATH 10 HOW LONG IS BUCKSKIN
Step-by-step explanation:
Someone please help! I gave this extra points because the question has a picture. I will give thanks and 5 star for any answer.
Answer:
53°
Step-by-step explanation:
x + (2x + 21) = 180
(Corresponding angles &
Supplementary angles)
3x + 21 = 180
3x = 159
x = 53°
Chai started to run on a treadmill after setting its timer for 62 minutes. The display says that he has finished 53% of his run. How many minutes have gone by? Round your answer to the nearest tenth.
About 32.9 minutes have gone by.
To find this answer you take your percent and make it a decimal by dividing it by 100. In doing so, you'll get 0.53. Then multiply 0.53 by 62 to get 32.86. Since you have to round to the nearest tenth, you look at the hundredths place to see whether you round up (5-9) or round down (1-4). In this case, you round up making your answer 32.9 minutes.
I hope this helps!
Answer/Step-by-step explanation:
About 32.9 minutes have gone by.
To find this answer you take your percent and make it a decimal by dividing it by 100. In doing so, you'll get 0.53. Then multiply 0.53 by 62 to get 32.86. Since you have to round to the nearest tenth, you look at the hundredths place to see whether you round up (5-9) or round down (1-4). In this case, you round up making your answer 32.9 minutes.
I hope this helps!
a 34 inch piece of wood is 20% of a longer piece of wood. How long is the longer piece of wood?
Answer:
170 inches
Step-by-step explanation:
34/x = 20/100
x = 170 inches
Answer: 170 inches
Step-by-step explanation: 20% multiply by 5(100%)
Substitute 20% with 34, and end with 170 inches
If 5 bags weigh the same as 3 blocks, how many blocks will 9 bags weigh?
The weight of 9 bags is 5.4 blocks
Solution:
Given that,
5 bags weigh the same as 3 blocks
We have to find how many blocks will 9 bags weigh
Let "x" be the weight of 9 bags
Then,
5 bags weigh the same as 3 blocks
9 bags weight the same as "x" blocks
From proportion we can say,
5 : 3 : : 9 : x
Therefore,
[tex]\frac{5}{3} = \frac{9}{x}\\\\5x = 27\\\\x = 5.4[/tex]
Thus the weight of 9 bags is 5.4 blocks
9 bags will be equal to 5.4 blocks
Step-by-step explanation:
Step 1 :
Given,
Weight of 5 bags = weight of 3 blocks
We need to find the weight of 9 bags
Step 2 :
From step 1 , we get
Weight of 1 bag = weight of 3 blocks ÷ 5
The weight of bags is in direct proportion to the weight of the blocks.
Hence
Weight of 9 bags = 3 blocks × 9 ÷ 5
= [tex]\frac{27}{5}[/tex] blocks = 5.4 blocks
Step 3 :
Answer :
9 bags will be equal to 5.4 blocks
If a Subway train traveled 12 km in 8 minutes how many km/h was the train going?
Answer: 1.5 km/h
To find the speed use this:
distance/ time
12/8
Answer:
90km/h
Step-by-step explanation:
set up as this: 12km/8min = x/60min then cross multiply
12*60 = 720
8*x = 8x
solve for x
720 = 8x
90 = x
What is the length of side TS?
2 StartRoot 6 EndRoot units
6 StartRoot 6 EndRoot units
24 units
8 units
Answer:
its B- 6 startroot 6 endroot units
Step-by-step explanation:
Answer:
B. 6√6
Step-by-step explanation:
EDGE2021
Which equation is equivalent to the square root of x^2 + 81 = x + 10 (I put a picture up with the question and answers)
Answer:
See below
Step-by-step explanation:
sqrt(x^2+81)=x+10
x^2+81=x^2+20x+100 (which is one of the options)
81=20x+100
-19=20x
x=-19/20
So there's the work done.
2. which quadrant is 7pi/4 radians in?
a. quadrant I
b. quadrant II
c. quadrant III
d. quadrant IV
Step-by-step explanation:
[tex] \frac{7\pi}{4} = 2\pi - \frac{\pi}{4} [/tex]
Therefore, Quadrant IV
option D
which of the following rectangles is similar to a rectangle that measures 12 units by 16 units? A) 18x24 B) 9x14 C) 6x10 D) 16x20
Answer:
A) 18x24
Step-by-step explanation:
The ratio of the dimensions will be the same for a similar rectangle.
12/16 = 3/4 . . . given rectangle
__
18/24 = 3/4 . . . choice A is similar
9/14 ≠ 3/4 . . . . choice B is not similar
6/10 = 3/5 . . . . choice C is not similar
16/20 = 4/5 . . . . choice D is not similar
The measure (in inches) of the sides
A factory that is working at 90% capacity is shipping 450 cars per week. If the factory works 100% capacity, how many cars can it ship per week
Answer:
500
Step-by-step explanation:
450/90 × x/100
how to solve x
100÷90=1.11111111111
1.11111111111×450
HELOOOOOOOOOOO ANYBODY THERE
Answer:
yes where is the question
A sandwich shop sells sandwiches with several different types of meat, several types of bread, and several different types of cheese. How many different combinations can be ordered at this shop?
A. 18
B. 27
C. 36
D. 48
Answer:A. 18
Step-by-step explanation:
Answer: C. 36
Step-by-step explanation:
3x3x4=36
PLEASE HALPPP I NEED IT BRAINLIST IF CORRECT!!!!
The value of 23 + 33 = ___.
Answer:
56
Step-by-step explanation:
Step 1: Combine
23 + 33
(20 + 30) + (3 + 3)
50 + 6
56
Answer: 56
Answer:
56
Step-by-step explanation:
23+33=56
~♥~♥≧∇≦≧∇≦≧∇≦≧∇≦
)) Rachel is using ribbon to create girls' hair barrettes. For a craft fair in Springfield, she
made 12 small barrettes and 12 large barrettes, using a total of 156 yards of ribbon. Then,
for another craft fair in Norwood, she made 10 small barrettes and 11 large barrettes, which
used a total of 138 yards. How many yards of ribbon does Rachel use for each?
Answer:
small: 5 yardslarge: 8 yardsStep-by-step explanation:
Using s and L to represent the amount of ribbon used for small barrettes and large barrettes, respectively, we have ...
12s +12L = 156
10s +11L = 138
Dividing the first equation by 12 gives ...
s +L = 13
Substituting s = 13-L into the second equation gives ...
10(13 -L) +11L = 138
130 +L = 138 . . . . . . . simplify
L = 8 . . . . . . . . . . subtract 130
s = 13 -8 = 5 . . . . find s
Rachel uses 5 yards for a small barrette, and 8 yards for a large barrette.
which equation goes with the table?
Answer:
y=3x that is the answer
2x + 3y = 2
x + 6y = 4
Answer:
x=0 and y=2/3
Step-by-step explanation:
Multiply top equation by 2 -> 4x+6y=4
Cancel out the "6y"s by elimination -> 3x=0
Divide both sides by 3 -> x=0
Plug x=0 into x+6y=4 to get y -> 0+6y=4 -> 6y=4 -> y=4/6=2/3
So x=0 and y=2/3
At the beginning of a board game, players take turns
drawing 7 lettered tiles. Are drawing A's on the first two tiles dependent or
independent events? Explain.
The second pick is dependent on the first one.
Let [tex]a[/tex] be the number of tiles with the letter A, and [tex]n[/tex] be the total number of tiles.
With the first pick, you have probability [tex]\frac{a}{n}[/tex] to pick an A, because you have [tex]a[/tex] "good" cases out of [tex]n[/tex] possible cases.
The second pick depends on the first one:
If you pick an A tile on the first pick, the probability of picking another A is now [tex]\frac{a-1}{n-1}[/tex]If you didn't pick an A tile on the first pick, the probability of picking another A is now [tex]\frac{a}{n-1}[/tex]TWIJCICUL NUV.1.1)
George began making paper flowers for
the tables at the school awards banquet.
He can make 3 flowers per minute. Sue
joined him 5 minutes after he started. She
can make 4 flowers per minute. George
continued to make 3 flowers per minute.
Together, they made 190 flowers.
Which statements about the number of
flowers made are true?
A. George made 115 flowers.
B. George made 90 flowers.
C. George made 30 flowers.
D. Sue made 25 flowers.
E. Sue made 100 flowers.
F. Sue made 160 flowers.
Answer: B and E
Step-by-step explanation: B and E arecorrect because 4 x 25 is 100 and 3 x 30 equals 90 so there you have it
Answer:
B and E
Step-by-step explanation:
Evaluate the expression {10 x 7} + (10 – 6).
Answer:the answer is 74
Step-by-step explanation:
What is the relationship between 4, 16, and squares?
Answer:
A square has 4 sides. 4 squares have 16 sides.
Step-by-step explanation: