Answer:
therefore when x = -3, r(x) = -51
Step-by-step explanation:
This is a function of r(x), so when it says r(-3), the x value is -3, so we have to find the value of r(x) when x=-3.
just plug in the x value in to the given equation
r(-3) = [tex]-4(-3)^{2}[/tex]+5(-3)
r(-3) = -4(9)+5(-3)
r(-3) = -36+-15
r(-3) = -51
therefore when x = -3, r(x) = -51
Answer: r(x) = -51
If the 1 is not a +1 or a -1
It is very unusual to have a 1 in that position.
Step-by-step explanation:
Substitute the value given (-3) in place of x, and evaluate the function.
r(-3) = -4(-3)² + 5(-3)
r(-3) = -4(9) - 15
r(-3) = -36 -15
r(-3) = -51
7x-11>3
Solve and graph for X
Beep help please ASAP
after giving 8 apples to her friend, John finds notices that two third of the remainder is 12.how many appledid she have all tigether
Answer:
26
Step-by-step explanation:
It started with x apples.
8 were given away.
Now there are x - 8 apples.
Two thirds of the remainder is (2/3)(x - 8).
That is equal to 12.
(2/3)(x - 8) = 12
x - 8 = 18
x = 26
There were originally 26 apples.
Answer:
26, if I understood the question correctly.
John has an amount of apples, gave 8 to her friend, and noticed that two thirds of the remainder is a dozen.
Step-by-step explanation:
If 2/3 of the remainder is 12, then we can set this up as an algebraic equation to see what the remainder started with.
x*2/3=12
Now we can see that we need to divide the 2/3 to get the answer for what x is equal to.
[tex]x=12/(\frac{2}{3} )[/tex]
To divide fractions, you multiply by the reciprocal, (or the fraction upside down)
[tex]x=12*(\frac{3}{2})[/tex]
When we multiply 12 by 3/2, we get 36/2, and when we reduce, we get 18.
If the entire remainder is 18, then the original total would be 18 plus the 8 that John gave to her friend.
18+8=26
Kind of a strangely worded question, I hope I understood correctly
The price of a car was decreased by 16% to £2400. What was the price before the decrease?
Answer:
£2857.14
Step-by-step explanation:
Given parameters:
Cost of car = £2400
Discount = 16%
Unknown:
The original cost = ?
Solution:
Original price - ( 16% x original price) = New price
Original price(1 - 16% ) = 2400
Original price(1 - 0.16) = 2400
Original price x 0.84 = 2400
Original price = [tex]\frac{2400}{0.84}[/tex] = £2857.14
aliyah had some candy to give her four children. She first took ten pieces for herself and then evenly divided the rest among her children. Each child received two pieces. with how many pieces did she start?
Please help me!! Thank youu
Answer:
6.5x and 3.05x were adding incorrectly.
Step-by-step explanation:
The answer to adding those two numbers would be 9.55x
Answer:
error is in step A. 6.5x and 3.05x do not combing to 10x. instead, it should be 9.55x
Please help need answer now!!
Answer:
-5
Step-by-step explanation:
count down to the lowest point
Answer:
Answer is -5
Step-by-step explanation:
count down all the way to the lowest point/the end of the line downwards.
will give branliest if correct :)
Answer:
15.71
Step-by-step explanation: I did It on a peice of paper and it's a mess so yeah......
the student scored 18 points out of 25 what percent did he make?
Hello good afternoon...God bless here is the answer to your following question
The student scored 18 points out of 25 which mean he got an
72%
Which are characteristics of the graph of the function f(x) = (x + 1)2 + 2? Check all that apply.
The domain is all real numbers.
The range is all real numbers greater than or equal to 1.
The y-intercept is 3.
The graph of the function is 1 unit up and 2 units to the left from the graph of y = x2.
The graph has two x-intercepts. HELP 40 POINTS
Answer:
A and C
Step-by-step explanation:
Answer:
A and C
Step-by-step explanation: hope it helps ^w^
What is the solution for x in the equation? -2x + 14 + 10x = 34 A. X=6 B. X=2/5 C. X=1/8 D. X=5/2
Answer:
Step-by-step explanation:
x =(10-√-800)/2=5-10i√ 2 = 5.0000-14.1421i
x =(10+√-800)/2=5+10i√ 2 = 5.0000+14.1421i
the answer is 5/2
Step-by-step explanation: im just that good enjoy the free answer you cheating loser
Fill in the blank to find the y-intercept. Please help me
Answer:
the y-intercept is 2 hope this helps
Answer:
y intercepts -1.5
Step-by-step explanation:
X=0 so you need to find it inthe point where the x = 0
need help i can maybe help y'all and if yall need points i can give y'all points and if i need some points maybe yall can help give points? enjoy your day and weekend
Answer:
whats up?
Step-by-step explanation:
Answer:
i have some bio questions that i need answered lol
Step-by-step explanation:
The temperature at 6:00 P.M. was 25°C. The temperature dropped 3°C per hour. What was the temperature at 4:00 A.M.? A.23 Degrees
B.-5 Degrees
C.-23 Degrees
D.5 Degrees
Answer:
the temperature dropped to -5 by 4:00 am
Step-by-step explanation:
2 (4x-2)- 5x=-18
HELP!!
Answer:
x = -14/3
Step-by-step explanation:
2 (4x-2) - 5x = -18
8x - 4 - 5x = -18
8x - 5x = -18 + 4
3x = -14
x = -14/3
I'm not sure if this is what you were asking for but, ya..
g (x) = 3x - 8, find g (-3)
Answer:
-17
Step-by-step explanation:
To find g(-3), we have to substitute the -3 as x.
g(-3) = 3(-3) - 8
g(-3) = -9 - 8 = -17
Graph y=2x+2 and y=x
Answer:
2+2 is 4-1 is 3 quick mafs
Step-by-step explanation:
what I just said
5x-6
3x +2
5yº
Only enter the number. What is the value of x?
Answer:
4
Step-by-step explanation:
⚠️⚠️I literally have almost a minute left please heLP I WANNA FINISH⚠️⚠️
if AB || CD and AC = BD, is ACD = CAB?
find one arithmetic means between 2 and 32? step-by-step
Answer:
17
Step-by-step explanation:
An arithmetic mean is the average of the 2 given numbers, that is
mean = [tex]\frac{sum}{count}[/tex] = [tex]\frac{2+32}{2}[/tex] = [tex]\frac{34}{2}[/tex] = 17
g(x) = 3x + 2
f (x) = x^3 + x^2 - 2x
Find (g + f )(4)
Answer:
4x^3+4x^2+4x+8
Step-by-step explanation: find (g+f)(4)
g(x)=3x+2
f(x)=x^3+x^2-2x
______________________
(4)*(3x+2+x^3+x^2-2x)
(4)(x^3+x^2+x+2)
4x^3+4x^2+4x+8
what is the answer to this question
Answer:
Number of protons
Step-by-step explanation:
The atomic number represents the number of protons that are in the nucleus. This says what chemical properties something has and where it is located on the periodic table.
Best of Luck!
8. You draw one card from a standard 52-card deck. In how many ways could the card be an even number or a queen?
Answer:
The card could have been 50% an even number and 25% for a queen
Step-by-step explanation:
2x + x +9 = 21
i need help
the slope of the line represented by 3x-5y=-15
Answer:
i think its 3/5
sorry if im wrong:(
Step-by-step explanation:
Answer:
Since the equation '3x + 5y = 15' is transformed to slope-intercept form 'y = (-3/5)x + 3' the slope is (-3/5).
Step-by-step explanation:
Since the equation '3x + 5y = 15' is transformed to slope-intercept form 'y = (-3/5)x + 3' the slope is (-3/5).
A line passes through (3, -3) and has a slope of 3. What is an equation of the line ???
Answer:
y=3x-3
Step-by-step explanation:
y=mx+b
m=slop
b=y intercept
What is
12%expressed
as a fraction?
3/25
1/8
6/25
1/4
Joey is standing on a diving board that is 5.6 feet above sea level. Joey dives into the water to a depth of -8.6 feet below sea level.
Answer:
14.2 feet
Step-by-step explanation:
I'm guessing the question is asking how far did Joey travel from the diving board.
Joey is 5.6 feet above 0 so to reach 0 we must subtract 5.6
-5.6 + - 8.6 = - 14.2 feet
Joey traveled 14.2 feet
Translation has no fixed points
True or False
Answer:
False?
Step-by-step explanation:
aight 20 points for you my man
also what is 13 + 19*23 =
Answer:
1200
Step-by-step explanation: