Answer:
33
Step-by-step explanation:
The area is 22, and to find area you do l*w
so 22/2=11
so 11*3=33
your unknown number is 33
ind f(x+h) when f(x) = 3x- 4x^2
Answer:
f(x + h) = -4x² - 4h² - 8hx + 3x + 3h
General Formulas and Concepts:
Algebra I
Function NotationExpand by FOIL (First Outside Inside Last)Combining Like TermsStep-by-step explanation:
Step 1: Define
f(x) = 3x - 4x²
f(x + h) is x = x + h
Step 2: Evaluate
Substitute: f(x + h) = 3(x + h) - 4(x + h)²Expand [FOIL]: f(x + h) = 3(x + h) - 4(x² + 2hx + h²)Distribute: f(x + h) = 3x + 3h - 4x² - 8hx - 4h²Rewrite: f(x + h) = -4x² - 4h² - 8hx + 3x + 3hHow many cubic inches are needed to fill this
rectangular prism?
10 in.
9 in.
5 in.
please help! will mark brainliest!
Answer:
-12x²
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Function NotationCombining Like TermsFactoringExpanding by FOIL (First Outside Inside Last)Calculus
Evaluating LimitsDefinition of a Derivative: [tex]f'(x)= \lim_{h \to 0} \frac{f(x+h)-f(x)}{h}[/tex]Step-by-step explanation:
Step 1: Define
[tex]f(x) = 1 - 4x^3[/tex]
Step 2: Differentiate
Substitute [DOD]: [tex]f'(x)= \lim_{h \to 0} \frac{[1-4(x+h)^3]-(1-4x^3)}{h}[/tex]Expand: [tex]f'(x)= \lim_{h \to 0} \frac{[1-4(x^3+3hx^2+3h^2x+h^3)]-(1-4x^3)}{h}[/tex]Distribute: [tex]f'(x)= \lim_{h \to 0} \frac{1-4x^3-12hx^2-12h^2x-4h^3-1+4x^3}{h}[/tex]Combine like terms: [tex]f'(x)= \lim_{h \to 0} \frac{-12h^2x-4h^3-12hx^2}{h}[/tex]Factor: [tex]f'(x)= \lim_{h \to 0} \frac{h(-12hx-4h^2-12x^2)}{h}[/tex]Divide: [tex]f'(x)= \lim_{h \to 0} -12hx-4h^2-12x^2[/tex]Evaluate: [tex]f'(x)= \-12x^2[/tex]I need help ASAP please
don't troll
with work
Answer:
[tex]y = 50x[/tex]
Step-by-step explanation:
Let's start off by trying to find the slope/gradient (commonly denoted as [tex]m[/tex]) of this function
[tex]m = \frac{\Delta y}{\Delta x}[/tex]
This means we divide the change in y over the change in x
Let's pick, for example, x = 3 (who's corresponding y is 150) and x = 4 (who's corresponding y is 200)
[tex]m = \frac{200 - 150}{4 - 3}\\\\m = 50[/tex]
Now we have this:
[tex]y = 50x+b[/tex]
Let's plug in a random value of x and y from this function in order to find b. I'll pick x = 2:
[tex]100 = 50\cdot 2 + b\\100 = 100 + b\\b = 0[/tex]
Since b is 0, we don't have to write it on our equation, meaning that our final equation is just
[tex]y = 50x[/tex]
To verify this, let's say we didn't know the value of y when x is equal to 4 and all we had was that equation:
[tex]y = 50\cdot 4\\y = 200[/tex]
Just like it is on the graph :)
Good luck!
Chandler rides his bike to school every day. He travels 2,560 feet in 640 seconds. How many feet per second did he travel?
Answer:
4
Divide the number of feet (2560) by how many seconds it took him (640) and the answer is how many feet per second
2560÷640=4
He traveled 4 feet per second
if john run 2.5 miles everyday, how many miles will he run in a month of 30?
Answer:
2,250 miles per day.
Step-by-step explanation:
John runs 2.5 miles per day. In a period of 30 months, you can averagely take 30 days in each month.
So, 30 x 30 = 900 days in 30 months.
To find the number of miles ran in 900 days,
900 x 2.5 = 2,250 miles per day.
Hope this helps.
In ∆TMZ, the measure of angle M is 6° more than twice the measure of angle T, and the measure of angle Z is 50° less than five times the measure of angle T.
Answer:
m<T = [tex]28^{o}[/tex], m<M = [tex]62^{o}[/tex] and m<Z = [tex]90^{o}[/tex]
Step-by-step explanation:
From the given ∆TMZ, let the measure angle T be represented by T.
So that,
m<M = 2T + 6°
m<Z = 5T - 50°
Sum of angles in a triangle = [tex]180^{o}[/tex]
T + (2T + 6°) + (5T - 50°) = [tex]180^{o}[/tex]
8T -[tex]44^{o}[/tex] = [tex]180^{o}[/tex]
8T = [tex]180^{o}[/tex] + [tex]44^{o}[/tex]
= [tex]224^{o}[/tex]
T = [tex]\frac{224^{o} }{8}[/tex]
= [tex]28^{o}[/tex]
Therefore,
i. m<T = [tex]28^{o}[/tex]
ii. m<M = 2T + 6°
= 2 x [tex]28^{o}[/tex] + 6°
= [tex]62^{o}[/tex]
m<M = [tex]62^{o}[/tex]
iii. m<Z = 5T - 50°
= 5 x [tex]28^{o}[/tex] - 50°
= [tex]140^{o}[/tex] - 50°
= [tex]90^{o}[/tex]
m<Z = [tex]90^{o}[/tex]
30 minutes to 90 minutes as a fraction in lowest terms
Step-by-step explanation: 30:90 = 10:30 =1:3 = 1/3
18. (ACED 2) A drver starts a journey with 25 gallons in the tank of his car. The car burns 5 gallons for every 100
miles Assume the amount of gasoline in the tank decreases linearly. Igal 20 miles
a White an equation to represent the number of gallons left in the tank at any given distance (in miles).
b. Identify the variables used.
c. How many miles will the car have traveled when it runs out of gas?
Answer:
1 gallon = 30 milles
×5
=5 gallon = 150 milles
×10
=10 gallon =300 milles
Step-by-step explanation:
1 gallon = 30 milles
×5
=5 gallon = 150 milles
×10
=10 gallon =300 milles
In 2007, approximately 3,380,000 people visited the Statue of Liberty. Express this
number in scientific notation.
Step-by-step explanation:
3.38 × [tex]10^{6}[/tex] is the scientific notation of 3,380,000
Answer:
3.38 x [tex]10^{2}[/tex]
Step-by-step explanation:
7th grade help me please :))
Answer:
Terms: -8, -4c, 7, -c, -12c, -2
Variables: c
Coefficients: -4, -1, -12
Constants: -8, 7, -2
Step-by-step explanation:
Terms are anything in between a plus or minus.
Variables are anything that is not a real number, such as c.
Coefficients are the number directly before a variable, such as -4 in -4c.
Constants are any real numbers without a variable, such as -8.
Victoria buys 5 scarves for a total of 36.25. If each scarf costs the same amount of money, how much did one scarf cost?
Answer:
7.25
Step-by-step explanation:
36.25/5=7.25 simple
Step-by-step explanation:
cost of 5 scarf = 36.25
cost of one scarf = 36.25/5
= 725/100
= 7.25 $
so one scarf cost = 7.25$
plz mark my answer as brainlist plzzzz vote me also and hope this helps you ...
help help guys show your solution and also answer the question
All answers are in the picture below!
Mr Hassan spent 1/3 of his salary on food and 2/5 of the remainder on transport. What fraction of his salary was left?
Answer:
4/15 was left over from is salary.
Step-by-step explanation:
Common denominator is 15. 5/15+6/15= 11/15.
15/15-11/15= 4/15.
If Mr Hassan spent 1/3 of his salary on food and 2/5 of the remainder on transport then 4/15 fraction of his salary was left.
What is Fraction?A fraction represents a part of a whole.
Let us consider the salary of Hassan as 1.
Mr Hassan spent 1/3 of his salary on food
2/5 of the salary on transport.
We need to find the fraction of his salary left.
We need to subtract 1/3 and 2/5 from 1
1-1/3-2/5
LCM of 3 and 5 is 15
15-5-6/15
4/15
Hence, 4/15 is the fraction of Hassan salary was left
To learn more on Fractions click:
https://brainly.com/question/10354322
#SPJ2
find the percent of the number
24% of 480
Answer:
115.2
Step-by-step explanation:
Answer: 115.2
Step-by-step explanation:
What is 24% of 480?
Y is 24% of 480
Equation: Y = P% * X
Solving our equation for Y
Y = P% * X
Y = 24% * 480
Converting percent to decimal:
p = 24%/100 = 0.24
Y = 0.24 * 480
Y = 115.2
plzzzzzzzzzzzzzzzzzzz help soon asap
Answer:
[tex]m=\frac{5}{4}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-10, -4)
Point (10, -29)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]m=\frac{-29+4}{10+10}[/tex]Add: [tex]m=\frac{-25}{20}[/tex]Simplify: [tex]m=\frac{5}{4}[/tex]Answer: -1.25
Step-by-step explanation:
You can use a graph to help. Plot the points first, then draw a line through them. Then, count the points that rise, over the amount of points that run.
You can also do it the computational way without a graph.
Use this equation:
m = (y2 - y1) / (x2 -x1)
Which number line correctly shows 4.5 - 2.5?
05
15 2
25
13
36
35
o
4:
35
3
05
0
251
15
053 65
15
26
3 35
+
15
K
-635-25.-2-15--050 051 522.5
Answer:
i can't make the line becaause of mobile problem but i have maked a table please compromis
Step-by-step explanation:
Table 1
Marks Frequency Cumulative Frequency
0-10 2 2
10-20 8 10
20-30 12 22
30-40 18 40
40-50 28 68
50-60 22 90
60-70
70-80 6
4 96
100
Table 2
Class (marks ) Frequency
11-15 2
16-20 3
21-25 3
26-30 5
31-35 6
36-40 6
41-45 3
46-50 2
Total 30
Table 3
Time (in min) Frequency
15 7
20 15
25 17
30 3
35 14
40 2
Table 4
31 42 49 25 29
40 36 24 29 30
40 46 38 34 26
24 22 39 40 21
A contractor purchases 5 dozen pairs of padded work gloves for $67.20. She incorrectly calculates the unit price as $13.44 per pair for the expense report. What is the correct unit price? What is the error?
Answer:
13.44
Step-by-step explanation:
she is right...........
Answer:
The correct unit price is $1.12 per pair. The error comes from dividing $67.20 by only 5 pairs (instead of 60 pairs).
Step-by-step explanation:
The contractor should have calculated the unit price as $67.20 divided by 60 pairs. Five dozen pairs is 5x12=60. This results in $67.20/60=$1.12 per pair. The error comes from dividing $67.20 by only 5 pairs (instead of 60 pairs).
What is the slope of the line
-8/5
Rise over run aka how many it goes up/down over how many it goes across
Use the recursive formula f(n) = 0.4 ⋅ f(n − 1) + 11 to determine the 2nd term if f(1) = 4.
Answer:
12.6Step-by-step explanation:
Given the recursive formula
f(n) = 0.4 × f(n − 1) + 11 and first term is f(1) = 4Finding the 2nd term:
f(2) = 0.4×f(1) + 11f(2) = 0.4×4 + 11 = 1.6 + 11 = 12.6Answer:
12.6
Step-by-step explanation:
Given the recursive formula
f(n) = 0.4 × f(n − 1) + 11
and first term is f(1) = 4
Finding the 2nd term:
f(2) = 0.4×f(1) + 11
f(2) = 0.4×4 + 11 = 1.6 + 11 = 12.6
Please help me! I’ll mark brainliest.
Harloe’s cats love Christmas songs. Every day she sings “Jingle Bells” five times, “Silver Bells” twice as many times as “Jingle Bells” and “Silent Night” once before bedtime.
A. How many songs does Harloe sing each day?
B. How many songs does Harloe sing in the weekend?
Answer:
A- 16 songs a day
B- 32 songs in the weekend
Step-by-step explanation:
A- if she songs "jingle bells" 5 times, the sings"silver bells" twice as many times, that would just be like multiplying 5 x 2, which equals 10, then add the 5 times she sings jingle bells, that would be 15. then she sings "silent night" one time which adds on to the other songs to get 16 songs a day
B- the weekend has 2 days in it so you would just multiply 16 x 2 which gives you 32
I don’t know how to get the line, help please?
Answer:
once you place your coordinates go to the pencil looking thing if on kami if not and on docks go to tools and click scribble
Step-by-step explanation:
[tex]45% of 75[/tex]
Answer:
Answer is 33.75
Step-by-step explanation:
X2 + 9x+ c
A. 81/4
B. 81/2
C. 9/4
D. 9/2
Answer:
hope it would help you
Step-by-step explanation:
the ans should be A
mark my ans as BRAIN LIST
plssss helppppp urgenttttt
what is the solution to the system of equations shown
Answer:
No solution
Reason:
A solution would be the point at which the lines cross.
These lines have the same negative slope and are parallel to one another. This means they will never cross. This means there is no solution.
Choose the graph below that represents the following system of inequalities: (1 point)
y ≥ −3x + 1
y ≤ 1 over 2 x + 3
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded above the line.
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded above the line.
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded below the line.
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded below the line.
Answer:
How much
Step-by-step explanation:
Hi, i need help please.
Answer:
k
Step-by-step explanation:
rearrange the like terms. final answer is the second one im pretty sure
Let |a| = 12 at an angle of 25° and |b| = 7 at an angle of 105°. What is the magnitude of a + b? Round to the nearest decimal.
12.8
14.9
15.4
17.3
Answer:
It is 15.4 on edge. C
Step-by-step explanation:
Your question: "Let |a| = 12 at an angle of 25° and |b| = 7 at an angle of 105°. What is the magnitude of a + b? Round to the nearest decimal."
Calculate the magnitude
The answer is 15.4
what is the perimeter of a rectangle with length of 15.2 inches and a width of 5.05
Answer:
40.5 inches
Step-by-step explanation:
15.2*2+5.05*2=30.4+10.1=40.5
The blues band, Jonny and the Silver Toads, charges $25 per ticket at their performances. Their next venue charges them $900 for use of the venue. Based on the inequality below, how many tickets, , do they need to sell in order to profit at least $1,925?
Answer:
The band must sell at least 113 tickets to make a net profit of at least $ 1,925.
Step-by-step explanation:
While the band charges $ 25 for each entrance ticket to their performances, and the venue charges them $ 900 for the use of the place, the number of tickets that must be sold for the band to obtain a profit of at least $ 1,925 arises from the following calculation:
1,925 + 900 = Costs plus profit
2,825 / 25 = Number of tickets needed to cover costs and profit
113 = Number of tickets needed to cover costs and profit.
Therefore, the band must sell at least 113 tickets to make a net profit of at least $ 1,925.