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Related Questions
Can someone please help me?
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If f(x)=2x^3+4x^2, find f(-3)
Answers
Answer:
f(-3) = -18
Step-by-step explanation:
f(x)=2x^3+4x^2, find f(-3); let's rewrite
f(x) = 2[tex]x^{3}[/tex] + 4[tex]x^{2}[/tex]; substitute -3 for x
f(-3) = 2[tex](-3)^{3}[/tex] + 4[tex](-3)^{2}[/tex]; do the exponents
f(-3) = 2(-27) + 4(9); multiply and add
f(-3) = -54 + 36 = -18
The value of the function f(x) = 2x³ + 4x² at f(-3) is - 18.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, A function f(x) = 2x³ + 4x².
Now, The value of the function f(-3) can be obtained by replacing
x with - 3.
Therefore, f(-3) = 2(-3)³ + 4(-3)².
f(-3) = 2×-27 + 4×9.
f(-3) = - 54 + 36.
f(-3) = - 18.
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subtract (8x^7-14d) - (-11x^7)
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Answer:
19x^7 - 14d
Step-by-step explanation
Step 1:
((8 • (x7)) - 14d) - (0 - 11x7)
Step 2:
(23x7 - 14d) - -11x7
Step 3:
19x7 - 14d
Answer:
19x^7 - 14d
WORKING:
= 8x^7 - 14d + 11x^7
Group like terms
= 8x^7 + 11x^7 - 14d
Add similar elements 8x^7 + 11x^7 = 19x^7
= 19x^7 - 14d
FINAL ANSWER:
19x^7 - 14d
Jeff mowed a lawn for $20.00 and received a $5,25 tip. He then washed a car for $12.50. How much money
did Jeff make for completing these two jobs?
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Answer:
See below.
Step-by-step explanation:
Mowing the lawn: $20
Tip: $5.25
Add them together.
[tex]20+5.25=25.25[/tex]
Washing the car: $12.50
Add that to the amount.
[tex]25.25+12.50=37.75[/tex]
Answer: [tex]37.75[/tex]
:)
Answer "and" Explanation:
Depends on whether this is a simple math problem or a riddle. I’m assuming the latter so…
Jeff received $20.00 for providing a lawn mowing service. Jeff received an additional $5.25 tip. Ignoring costs and taxes, Jeff’s gross receipts were $25.25.
Jeff then decided to wash a car. The ways it’s worded leads me to believe he spent $12.50 on the car wash.
So, $25.25 - $12.50 = $12.75
Alternatively, if Jeff was paid to wash the car then:
$20.00 + $5.25 + 12.50 = $37.75
So the Answer will be: $37.75
78 is 0.6% of what number? Use pencil and paper. Would you expect the
answer to be a lot less than 78, slightly less than 78, slightly greater than 78, or
a lot greater than 78? Explain.
78 is 0.6% of
(Type an integer or a decimal.)
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Answer:
Answer is
13000
Step-by-step explanation:
78÷0.6%=13000
Please help. It’s due today
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Answer:
There's nothing there I believe you forgot to add a link just add or create another question and i'll see what I can do :)
Step-by-step explanation:
find the slope interecepts of the line 2x+3y+10=0
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Answer:
slope of line(m)=-2/3
Step-by-step explanation:
from the formula
slope of line(m)=-(coefficient of x component / coefficient of y component)
=-(2/3)
Ruby's family took a road trip to Mount Rushmore. Ruby slept for the last 476 miles of the trip. If the total length of the trip was 700 miles, what percentage of the total trip had they traveled when Ruby fell asleep?
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700 - 476 =
700
+476
______
1176
32%
Explanation
700 - 476 = 224
I googled 224 is what percent of 700
Anyone not so busy? i need help with 9th grade maths
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Answer:
Okay!
Step-by-step explanation:
That would be no problem!
Evaluate the expression for t = 43 and u = 12.
tu − t − u =
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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]tu - t - u = (43 \times 12) - 43 - 12 = \\ [/tex]
[tex]516 - 55 = 461[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Answer:
516 - 43 - 12 = 461
Step-by-step explanation:
tu is 43 x 12 = 516
t = 43
u = 12
so
516 - 43 = 473
473 - 12 = 461
the final answer is
461
What is the answer to this question
Answers
Answer:
Slope: 6 Y-intercept: 2
Step-by-step explanation:
See where the line hits perfectly at an age and calculate rise/run. Here the rise is 6 and the run is 1, therefore 6/1 = 6.
Where is the y value that equals 0 in the x value? Right in the middle of the y line, so its 2. Hope this makes sense, I’m not too good at explaining stuff lol
1.
Susan has five blocks of candy. She wantsstwo ciwe chook into -size pieces of
candy. How many pieces of candy willstrebe anettonale?
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At the school festival ,heather can buy 25 game tickets for 10 dollars, or she can pay 0.50 cent per game ticket.whick option has the lesser price per ticket.
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Answer:
The 10 dollars for 25 tickets
Step-by-step explanation:
if a circle has a circumference of 200π what is its radius?
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Answer:
31.83
Step-by-step explanation:
The circle would have a circumference of 31.83
What are the x- and y-intercepts of the graph of y = x2 + x - 6? (1 point)
O x-intercepts: (3, 0) and (2,0)
y-intercept: (0,6)
O x-intercepts: (3.0) and (-2,0)
y-intercept: (
0-6)
x-intercepts: (-3,0) and (2.0)
y-intercept: (0-6)
x-intercepts: (-3,0) and (2.0)
y-intercept: (0.6)
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Answer:
okay i will answer but i dont see the question
Step-by-step explanation:
The function below was generated using an equation of the form f(x) = asin(bx – c).
The function below was generated using an equation of the form f(x) = asin(bx – c).
On a coordinate plane, a function has a maximum of 3 and minimum of negative 3. It completes one period at pi. It increases through the y-axis at (0, 0).
Find a, b, and c for the function
such that the graph of f matches the figure.
On a coordinate plane, a function has a maximum of 3 and minimum of negative 3. It completes one period at pi. It increases through the y-axis at (0, 0).
Find a, b, and c for the function
such that the graph of f matches the figure.
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Answer: a = 3, b = -2, c = π
Step-by-step explanation: edge
Answer:
Choice A : a = 3, b = -2, c = π
Step-by-step explanation:
correct on edg
SuperFit Gym charges $14 per month, as well as a one-time membership fee of $25 to join. After how many months will I spend a total of $165?
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Rewrite in simplest terms: 9(-6r – 3) + 2(r +9)
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Answer:
I think its 'r= 15/7=0.467'
Step-by-step explanation:
Work out the length x pls
Answers
Answer:
~17.67
Step-by-step explanation:
Pythagorean theorem
a^2+b^2=c^2
7.5^2+16^2=c^2
~17.67
Answer:
Step-by-step explanation:
We use pythagorus theorem which is; a²+b²=c²
(16cm)²+(75/10cm)²=x²
256cm²+225/4cm²=x²
1249/4cm²=x²
√1249/4cm²=√x²
312.25cm=x
i need help with this
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Answer:
Hey there..Sorry but, I don't know the answer to this..! Wish I could help.
Explanation: Start by making the denominators equal to each other, and to do so multiply 2 at the numerator and denominator of the fraction 3/4. That gives you 11/8 and then you combine like terms for 11/8 and 5. That gives you 6 3/8. Subtract.
You purchased concentrated cleaner that must be diluted before use. Container a is the cleaner, which is 20% solution. Container b is pure water. You are mixing together the contents of container a and container b to produce 40 gallons of 9% solution. How many gallons from each container are needed to create the 40 gallons of 9% cleaning solution?
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Answer:
18 gallons from container [tex]a[/tex] and 22 gallons from the container [tex]b[/tex] to be mixed to get the required mixture.
Step-by-step explanation:
Given that the container [tex]a[/tex] has 20% concentrated cleaner
and container [tex]b[/tex] has pure water which has 0% cleaner.
Let x gallons from container a and y gallons from the container b are mixed to get a 9% concentrated solution.
So,
[tex]9\%\; \text{of}\; (x+y) = (20\% \; \text{of}\; x )+(0\% \; \text{of}\; y)\cdots(i)[/tex]
As the total amount of the final solution= 40 gallons
So, [tex]x+y=40\cdots(ii)[/tex]
Using the value of equation (ii) in equation (i), we have
9% of 40 = 20% of x
[tex]\Rightarrow 0.09\times 40=0.2 \times x[/tex]
[tex]\Rightarrow x=\frac{0.09\times 40}{0.2}[/tex]
[tex]\Rightarrow x=18[/tex] gallons.
From equation (ii),
18+y=40
[tex]\Rightarrow y=40-18=22[/tex] gallons.
Hence, 18 gallons from container [tex]a[/tex] and 22 gallons from the container [tex]b[/tex] to be mixed to get the required mixture.
anyone wanna just vibe?
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.........,,,......
Answer:
meeeeeeeee. Im bored wanna talk?
Step-by-step explanation:
PLS HELP FIND ANGLE MEASUREMENTS
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Answer:
From my observations, AOB looks like an isosceles triangle, so A=18 and B=18. Since a triangle must add up to 180. We do 180-18-18=144. O= 144. Then, triangle BOC looks like an isosceles triangle as well. So, we do 180-144= 36 so O = 36 and then we 180-36=144/2 because two sides have the same angles giving us 72 degrees for angles B and C = 72 and for O= 36
So,
x = 72
y = 36
what are three collinear points on line l
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Answer:
im sorry i don't understand!
Step-by-step explanation:
Full question required!
Answer:
i think its b or C
Step-by-step explanation:
PLEASE HELP I HAVE 5 MINS!!!!!!!!!!!!!!!!!!!!!!!The points given in the table lie on a line. Find the slope of each line.
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Answer:i did slopes last year I forgot
Step-by-step explanation:
Answer:
m=-5/2
Step-by-step explanation:
the slope of a line is determined by finding the change in the y-values over the change in x-values:
9-4 = 5
0-2 -2
so m= -5/2
What is an equation in slope-intercept form for the line that passes through the points (1,-3) and (3,1)
Answers
Step-by-step explanation:
Hey there!
Note: Use double point formula for finding the eqaution which passes through two points.
Given;
The points are; (1,-3) and (3,1).
Use double point formula.
[tex](y - y1) = \frac{y2 - y1}{x2 - x2} (y - y1)[/tex]
Put all values.
[tex](y + 3) = \frac{1 + 3}{3 - 1} (x - 1)[/tex]
Simplify it.
[tex](y + 3) = \frac{4}{2} (x - 1)[/tex]
[tex]y + 3 = 2(x - 1)[/tex]
[tex]y + 3 = 2x - 2[/tex]
[tex]y = 2x - 2 - 3[/tex]
[tex]y = 2x - 5[/tex]
Therefore, the eqaution is y = 2x-5.
Alternative:
Steps:
Find slope using slope formula and use one point formula.Simplify in the form of y = mx+c form.Formula:
Slope = (y2-y1)/(x2-x1)One point formula= (y-y1)= m(x-x1)The points are; (1,-3) and (3,1).
Now;
Slope= (1- (-3))/(3-1)
= (1+3)/2
= 2
Again;
Using one-point formula.
(y+3) = 2(x-1)
y+3= 2x-2
y = 2x -5
Therefore, the equation is y = 2x-5.
(You can follow up any method you want)
Hope it helps....
This table shows the input and output values for an exponential function f(x).
x -3 -2 -1 0 1 2 3
f(x) 8 4 2 1 0.5 0.25 0.125
What is the ratio of outputs for any two inputs that are one value apart?
4
0.5
0
1.5
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Answer:
its 0.5 I took the test and it was correct
Step-by-step explanation:
Simplify: 2(5+3x) + (x + 10)
Answers
Answer:
= 20 + 7x
Step-by-step explanation:
2(5+3x) + (x + 10)
10 + 6x + (x + 10)
= 20 + 7x
The simplified expression is 20+7x.
What is expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given:
2(5+3x) + (x + 10)
Now, simplifying
10 + 6x + x +10
=10 + 10 + 6x + x
=20 + 7x
Hence, the simplified expression is 20+7x
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You only have to answer 7,8 but if you want you can do 9 and 10
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Answer:
#7) x = 3
#8) x = 9
Step-by-step explanation:
# 7
Well AOB + BOC = AOC so...
4x - 1 + 2x + 15 = 8x + 8 (collect like terms)
6x + 14 = 8x + 8 (subtract 8 on each side)
6x + 6 = 8x (subtract 6x on both sides)
6 = 2x (divide by 2 on both sides)
3 = x
#8
COD + BOC = BOD so..
8x + 13 + 3x - 10 = 12x - 6 (collect like terms)
11x + 3 = 12x - 6 (add 6 on both sides)
11x + 9 = 12x (subtract 11x on both sides)
9 = x
Hope this helps!!
Is 2 greater than -9
Answers
Answer:
yes
Step-by-step explanation:
any positive number is greater than a negative