Answer:
Choice C. [tex](f-g)(x)=-x^2+17x+7[/tex]
Step-by-step explanation:
Recall that [tex]f-g[/tex] is defined by
[tex](f-g)(x)=f(x)-g(x)[/tex]
Therefore we compute
[tex](f-g)(x)=f(x)-g(x)=10x+7-x^2+7x=-x^2+17x+7[/tex]
Sarah is going to pay for an item using gift cards. The clerk tells her tht she will need 2 gift cards and as additional $3 to pay for the item.
Write an algebraic equation to find the cost for any amount of gift cards
Answer:
Step-by-step explanation:
t=2g+3.
help me again Scooby do
I got more Scooby snac just for you, Imao
The correct answer is letter B. V = 141.3cm³
Here's the Solution:
V = π r²hV = (3.14) (3cm)² (5cm)V = (3.14) (9cm²) (5cm)V = (3.24) (45cm³)V = 141.3cm³HOPE THIS HELPS. GOODLUCK:)
Apply the distributive property to factor out the greatest common factor.
40f + 30
In a mathematics class , half of the students scored 84 on an achievement test. With the exception of a few students who scored 50 , the remaining students scored 76. Which of the following statements is true about the distribution of scores ?
A. The mean is greater than the mode.
B. The mean and the median are the same.
C. The mean is less than the median.
D. The mean is greater than the median.
Answer: B. The mean is less than the median
Step-by-step explanation:
there are some that scored 51 which means - mean<median
NJ Transit raises its train fees. Snooki wants to visit her parents which used to cost $28 but they increased the fares by 15%. What will the ticket cost now?
Answer: 32.20$ Train Fee
Step-by-step explanation:
15% of 28 is 4.20... 4.20 will be added to the current Train Fee
28.00$
+ 4.20$
32.20$
Final result: The Train Fee will be 32.20$
Carlo got a pet snake as a birthday present. On his birthday, the baby snake was just 26 cm long. He has been measuring its length weekly and has noticed that it has been growing approximately 2 cm each week.
Write an equation to represent the length of the snake in weeks since Carlo's birthday use L for length and w for weeks.
The equation to represent the length of the snake in weeks:
[tex]L=2w+26[/tex]
Given:
A snake of lenght of 26 cemtimeters grows approximately 2 centimeter long each week.
To find:
The equation to represent the length of the snake in weeks
Solution:
Let the length of the snake in' w' weeks be 'L'.
The initial length of the snake on Carlo's birthday = 26 cm
At starting very first week the length of the snake was 26 cm. And after a week the lenght of the snake becomes 28 cm and then aftertwo weeks the length becomes 30 cm and so on.
Increase in length of the snake each week = 2 cm
And increase in length of the snake in 'w' weeks = (2×w) cm
And the length of the snake in terms weeks (w) will be given by equation:
[tex]L=2\times w+ 26\\L=2w+26[/tex]
The equation to represent the length of the snake in weeks:
[tex]L=2w+26[/tex]
Learn more about equation representation here:
https://brainly.com/question/11408596
The cube of an integer is called a __________ ?
Answer:
a perfect cube
Step-by-step explanation:
Answer:
It is called a perfect cube .
Step-by-step explanation:
Please give this in steps
Answer:
(x - y)²
Step-by-step explanation:
Given
(x + y)² - 4xy
= x² + 2xy + y² - 4xy
= x² - 2xy + y²
= (x - y)²
Answer:
[tex] {(x + y)}^{2} - 4xy = {x}^{2} + 2xy + {y}^{2} - 4xy \\ = {x}^{2} - 2xy + {y}^{2} \\ = {(x - y)}^{2} \\ thank \: you[/tex]
in a class of 80 students in Debre Berhan university,45 good in mathematics,15 are good in both Mathematics and English,13 are good in both Mathematics and Psychology, 16 are good in both in English and psychology,20 are good in Psychology and 9 are good in both of the three courses A,how many students are good in mathematics only? B,how many students are not good in any of three courses?
The relationship between the number of students that are good at a given subject is an illustration of sets.
26 students are good at Mathematics only.28 students are not good at all.We use the following representations:
[tex]M \to[/tex] Mathematics
[tex]E \to[/tex] English
[tex]P \to[/tex] Psychology
From the question, we have the following parameters
[tex]M = 45[/tex] -- Mathematics
[tex]M\ n\ E =15[/tex] -- Mathematics and English
[tex]M\ n\ P =13[/tex] -- Mathematics and Psychology
[tex]E\ n\ P =16[/tex] -- English and Psychology
[tex]P=20[/tex] -- Psychology
[tex]All = 9[/tex] -- All 3 subjects
[tex]Total = 80[/tex] -- All students
The number of students that are good at mathematics only is as follows:
First, we calculate those that are good at mathematics and English only
[tex](M\ n\ E)' = M\ n\ E - All[/tex]
[tex](M\ n\ E)' = 15 - 9 = 6[/tex]
Then those that are good at mathematics and psychology only
[tex](M\ n\ P)' = M\ n\ P - All[/tex]
[tex](M\ n\ P)' = 13 - 9 = 4[/tex]
So, the students that are good at mathematics only are:
[tex]M' = M - (M\ n\ E)' -(M\ n\ P)' - All[/tex]
[tex]M' = 45 - 6 -4 -9[/tex]
[tex]M' = 26[/tex]
Hence, 26 students are good at Mathematics only.
To calculate the number of students that are not good in any of the subjects, we make use of the complement rule
[tex]A + A' = Total[/tex]
Where:
[tex]A \to[/tex] Students that are not good in any
[tex]A' \to[/tex] Students that are good in at least one
So, we have:
[tex]A' =M' + (M\ n\ E)' + (M\ n\ P)' + (E\ n\ P)' + All[/tex]
Where:
[tex](E\ n\ P) = (E\ n\ P)' - All[/tex]
[tex](E\ n\ P) = 16-9 = 7[/tex]
The equation becomes:
[tex]A' =26 + 6 + 4+7+9[/tex]
[tex]A' =52[/tex]
Recall that:
[tex]A + A' = Total[/tex]
[tex]A = Total - A'[/tex]
[tex]A = 80 - 52[/tex]
[tex]A = 28[/tex]
Hence, 28 students are not good at all.
Read more about sets at:
https://brainly.com/question/24388608
If X= 9 and Y = 3, what is XY
Answer:
The most basic question I have ever seen lol
XY = 9*3 = 27
Build a function whose domain is all real numbers other than -4, and whose range is all real numbers other than 5.
Answer:
An example is the rational function [tex]y=\frac{5x}{x+4}[/tex].
Step-by-step explanation:
The graph of the rational function [tex]y=\frac{5x}{x+4}[/tex] has a vertical asymptote at x = -4 where the denominator is equal to zero. The function is undefined there, so the domain is all real numbers except -4.
The graph has a horizontal asymptote y = 5 so the domain is all real numbers except 5.
See the attached image for the graph of the function (purple) and it's vertical asymptote (black).
Let A={5,8}, B={p,q}, C={r,v} How many elements are in A×B?
There are 4 elements in the set A* B
How to determine the number of elements in A * B?The sets are given as:
A={5,8}
B={p,q}
C={r,v}
The expression A * B implies that:
A * B = n(A) * n(B)
Where n( ) implies that the number of elements in......
So, we have
A * B = 2 * 2
This is so because sets A and B have 2 elements each
Evaluate the product
A * B = 4
Hence, there are 4 elements in the set A* B
Read more about sets at
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#SPJ1
A=1/2bh solve for b then h
Answer:
There is no right or wrong answer
Step-by-step explanation:
You did not give enough information, this formula usually comes with a triangle that you want to solve, therefore no one can answer this correctly since there is nothing to solve.
write the equation of the line in fully simplified slope-intercept form.
Answer:
slope intercept form: y=mx+c
Step-by-step explanation:
By using two points form:
y-0/3-0=x-1/2 /0-3
y/3=x-1/2 /3
y=x-1/2
Note:if you need to know any question please let me know.
what is 3 ÷ 2/5??? pls help
Answer:
7.5
Step-by-step explanation:
Answer:
7.5
Step-by-step explanation:
3/2/5=3/2×5. a/b/c=a/b×c
1.5×5=7.5
help
help
help
help
e
e
e
e
e
Answer:
[tex]x=-3[/tex]
Step-by-step explanation:
[tex]x+5-5=2-5[/tex]
[tex]x=-3[/tex]
III. Direction: Solve and check. show your complete Solution.
1)
x+5 = 2
x = 2 - 5
x = -3
checking
x+5 = 2
-3 + 5 = 2
2 = 2
I hope this helps. Goodluck :)
please help me to do this question
Answer:
firdt method is
Length x breath
is equal to ½
Type your answers into the boxes.
The ratio of men to women in a gym is 7 : 5
What fraction of the gym members are women?
Answer:
[tex] \frac{5}{12} [/tex]
Step-by-step explanation:
[tex] \frac{5}{7 + 5} [/tex]
I'm not sure about the answer. Sorry if it's wrong.
Can anyone help? Most brainiest for the correct answer!!
Explanation:
The "large cars" pie slice takes up 7% of a full circle. This means that the degree measure of this slice takes up 7% of a full 360 revolution.
7% of 360 = 0.07*360 = 25.2 degrees
This then rounds to 25 degrees
25
If you like, I can put on the solution.
Q16. If the perimeter of a rectangular house is 25 1/3 yards, and the length is 22 feet. What is the
width?
16 feet
O 35 feet
O 37 feet
0 40 feet
42 feet
Answer:
OPTION A :16 FEET
PERIMETER =26 1/3=76/3yard=76/3×3=76 feet
LENGTH=22feet
Width=76/2-22
WIDTH=38-22=16 FEET
find the domain of f(x) = 3x + 5
Answer:
All real numbers
Step-by-step explanation:
All real numbers: f(x) is defined for all values of x. There are no discontinuities or places where f(x) is undefined. f(x) is just a straight line going to infinity.
Answer:
(-infinity, infinity), or all real numbers
Step-by-step explanation:
If you were to look at it graphically, it would be a linear function with a slope of 3 and shifted up 5 units. (i attached a screenshot of what the graph would look like at the bottom :)
since there are no domain restrictions, you're not really going to have any issues or gaps which is when you might need to do something like
(-infinity,4] u(5,inifinity) --> since this isn't the case though, you're totally free to just write all real numbers, because all real numbers in the x-plane (as that is what domain looks at) are included.
When all else fails, (at least for homework), desmos is great for graphing and looking at everything visually
Hope that helps! lmk if you have any questions :)
2. 3.6 x 5.5? Explain your answer. (Make sure you include how you knew where to
place the decimal point.)
Answer:
19.80 or 19.8
Step-by-step explanation:
When multiplying decimal numbers we forget the decimal points and multiply normally; like, 3.6 x 5.5 = 1980, then we count how many decimal numbers(numbers after the decimal point) there are in the factors(In 3.6 we have the decimal number 6. And in 5.5 we have the decimal number 5 ). So here we have 2 decimal numbers resulting in our answer being, 19.80 or 19.8 since the 0 is unnecessary.
h(1) = 9
h(2) = 3
h(n)=h (n−2) ⋅ h(n−1)
h(3)
Answer:
27
Step-by-step explanation:
h(n)=h (n−2) ⋅ h(n−1)
h(3)=h (3−2) ⋅ h(3−1)
h(3)=h (1) ⋅ h(2)
h(3)=9 ⋅ 3
h(3)=27
Answer:
27
Step-by-step explanation:
khan
Jace recorded the grade-level and instrument of everyone in the middle school School of Rock below.
Seventh Grade Students
Instrument # of Students
Guitar 11
Bass 14
Drums 11
Keyboard 14
Eighth Grade Students
Instrument # of Students
Guitar 13
Bass 13
Drums 8
Keyboard 3
Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than bass as a percent to the nearest whole number.
What is the solution to
:-7?
A. 81
B. 63
C. 63
D. -81
Please help me I’m dum
Answer:
-63
Step-by-step explanation:
63/9 = 7, so in order to make the answer -7, 63 must be negative.
What is the perimeter (in feet and inches) of a rectangle that has a length of 12'7" and a height of 11'3"?
Answer:
p=2l+2w
=2*12'7"+2*11'3"
a person runs at a constant speed of 9.2 miles per hour for 6 minutes and 30 seconds. How far did they travel in yards.
Given:
Speed[tex]= \bold{9.2 \ \frac{miles}{hour}}[/tex]
[tex]\therefore \\\\[/tex]
1-hour= 60 minutes
1-minutes=60 second
So
1-hour= 3600 second
Converting the given time into seconds:
Time= 6 minutes and 30 second
[tex]=\bold{6\times 60 \ second + 30 \ second }\\\\=\bold{360\ second+30\ second}\\\\=\bold{390\ second}\\\\[/tex]
When 3600 seconds covers=9.2 miles
Then equation:
[tex]=\bold{\frac{9.2}{3600}}\\\\[/tex]
390 seconds covers:
[tex]=\bold{\frac{9.2}{3600}\times 390 \ miles} \\\\[/tex]
Let
[tex]\bold{1 \ miles= 1760\ yard}\\\\[/tex]
Convert the traveling value into yards:
[tex]=\bold{ \frac{9.2}{3600}\times 390\times 1760}\\\\=\bold{ \frac{9.2}{36}\times 39\times 176}\\\\=\bold{ \frac{9.2}{12}\times 13\times 176}\\\\=\bold{ \frac{9.2}{12}\times 2288}\\\\=\bold{ 9.2\times 190.66}\\\\=\bold{ 1754.072\ yards}\\\\[/tex]
Therefore, total traveling yards are"1754.072".
Learn more:
brainly.com/question/20282942
Speed of the person has been given as 9.2 miles per hour.
Therefore, speed of the person in miles per minute = [tex]\frac{9.2}{60}[/tex]
Duration for which the person is running = 6 minutes and 30 seconds
= 6 minutes and [tex]\frac{30}{60}[/tex] minutes
= 6.5 minutes
Since, Distance = Speed × Time
By substituting the values in the expression we can get the distance traveled.
Distance = [tex]\frac{9.2}{60}\times 6.5[/tex]
= 0.9967 miles
Since, 1 mile = 1760 yards
Therefore, 0.99667 miles = 1760 × 0.99667
= 1754.13 yards
Total distance traveled by the person is 1754.13 yards.
Learn more,
https://brainly.com/question/13458499
Find the value of x.
X+58+43 =90
X= - 11
Kdjdjsjwnwjdhnsjjdd
Answer: -11
Step-by-step explanation: one of the angle is 90 another one is 43, and all 3 will be 180; so 90+43+?=180,
133+x+58=180,
191+x=180,
-191 to both side,
x=-11
Find the AREA of the shape
Step-by-step explanation:
LxB
8x7
equals :56
Area equals to 56cm
(15-12)2-2+5=
20+23×3-1=
[4(3+2)-4]+42
Answer:
Here is your answer . Hope this is helpful to you.