Answer:
108
Step-by-step explanation:
Given that Joseph has 48 comic books.
As he sold 1/4 of his collection to his friend, so
The number of books, Josef sold = 1/4 x 48 = 12.
The number of remaining books, Josef has = 48 - 12 = 36.
As he brought twice the number of comic books as he has now, so,
the number of comic books, Josef brought = 2 x 36 = 72.
Now, total number of comic books, Josef has = 36 + 72 = 108.
The function = 3describes the volume of a cube, , in cubic inches, whose length, width, and height each measure inches. Find the (instantaneous) rate of change of the volume with respect to when = 3 ℎ.
The correct structure of the question is as follows:
The function f(x) = x^3 describes a cube's volume, f(x) in cubic inches, whose length, width, and height each measures x inches. If x is changing, find the (instantaneous) rate of change of the volume with respect to x at the moment when x = 3 inches.
Answer:
Step-by-step explanation:
Given that:
f(x) = x^3
Then;
V = x^3
The rate whereby V is changing with respect to time is can be determined by taking the differentiation of V
dV/dx = 3x^2
Now, at the moment when x = 3;
dV/dx = 3(3)^2
dV/dx = 3(9)
dV/dx = 27 cubic inch per inch
Suppose it is at the moment when x = 9
Then;
dV/dx = 3(9)^2
dV/dx = 3(81)
dV/dx = 243 cubic inch per inch
Select all the pairs that could be reasonable approximations for the diameter and circumference of a circle. Explain your reasoning.
5 meters and 22 meters.
19 inches and 60 inches.
33 centimeters and 80 centimeters.
Answer:
19 inches and 60 inches
Step-by-step explanation:
Estimate by rounding both numbers to tens and then divide.
61 ÷ 29 is approximately
Answer:
2
Step-by-step explanation:
Round: 61 → 60Round: 29 → 30Divide: 60 ÷ 30 = 2I hope this helps!
Tony bought 255 1-inch nails and 5 boxes of 2-inch nails. Each box of 2-inch nails had equal amounts of nails in them. He bought a total of 620 nails. Find the number of nails in each box of 2-inch nails.
Answer:
73 nails
Step-by-step explanation:
Number of 1 inch = 255
Boxes of 2 - inch = 5
Each box of 2 _inch has equal amount of nails
Total number of nails = 620
Number of nails in each box of 2_inch nails:
Let Number of nails in each box = b
Number of 1_inch + 5 * number of 2_inch = 620
255 + 5b = 620
5b = 620 - 255
5b = 365
5b / 5 = 365 / 5
b = 73
Hence, there are 73 nails in each box of 2_inch nails
I need help quick please
HELP! Quickly! I need this ASAP
Answer:
y=10x+5
Step-by-step explanation:
y1-y2/x1-x2
5-15/0-1
-10/-1
10
The slope is 10
when the x is zero, y is 5 therefore 5 is the Y-intercept
y=10x+5
~PumpkinSpice1♥
Find the slope and y-intercept for the table.
slope:
y-intercept:
Answer:
slope: 3
y-intercept: 3?
Step-by-step explanation:
Mary is buying hair clips online. The online store charges a fee for each hairclip and a shipping fee. On Monday, Mary placed an order for 8 hairclips, and her total came to $33.75. On Friday, she placed an order for 11 hair clips, and her order came to $44.25. Find the price of each hair clip and the price of shipping.
-11/2 divided by 12/5.
Answer:
Exact Form:
−55/24
Decimal Form:
−2.2916...
Mixed Number Form:
−2 7/24
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
When Leroy went to bed, the temperature was – 2°F. He needed his electric blanket to keep warm! By morning, the temperature had risen 9°F. What was the temperature in the morning?
Answer:
it would be 7
Step-by-step explanation:
the equation would be ( if you read the problem) -2+9 and that is equal to 7
Mrs. Bell can grade 12 papers in 20 minutes. At this
rate, how many papers can she grade in one hour?
Answer:
36
Step-by-step explanation:
HELP
The length of a rectangle is
[tex]18x ^{2} + 6x - 4[/tex]
and the width of the rectangle is
[tex]3x {}^{2} - 9x + 10[/tex]
what expression would represent the perimeter of the rectangle?
Answer:
21x^2+3x+12
Step-by-step explanation:
the pyramid shown has a rectangular base and faces that are isosceles triangles find the total surface area to the nearest tenth
Answer:
I think is C.
Step-by-step explanation:
I'm so sorry if wrong!
HELPP
Lacey was looking at some data on World Cup soccer matches. She noticed a negative linear relationship
between the number of fans attending a match and the number of total goals scored in that match. Here is
computer output from a least-squares regression analysis for using attendance (in thousands of fans) to predict
the total number of goals scored:
Predictor
Coef
SE Coef
T
P
Constant
3.260
0.145
22.535
0.000
Attendance (thousands)
-0.009
0.003
-3.330
0.001
Use this model to predict the total number of goals scored in a match with 90 thousand fans in attendance.
You may round your answer to the nearest whole number of goals.
goals
Answer:
the answer is 2
Step-by-step explanation:
this was a question on my test on khan academy :D
help please!!!!!!!!!!!!!!!!!
Answer:
the answer is 9.5
Step-by-step explanation:
Answer:
I think it's C. 9.5
Hope this Helps!
The offense of a high school football team gained 8 yards on first down and then lost 5 yards on second down. What expression represents the total amount of yards gained by the offense?
The answer would be 8 + (-5).
ABCD is a rhombus. Solve for x, if m AFB
(16x + 6)
B
F
D
C
WILL MARK BRAINLEST, PLEASE HELP !!!
Answer:
rate of change = first derivative= g'(x)=-2x+6
plug -3 to 5 into that g'(x) equation, it will be your answer
Step-by-step explanation:
9514 1404 393
Answer:
4
Step-by-step explanation:
The average rate of change of f(x) on the interval [a, b] is computed from ...
m = (f(b) -f(a))/(b -a)
On the interval [-3, 5] the average rate of change is ...
m = (f(5) -f(3))/(5 -(-3)) = ((-5^2 +6·5 +12) -(-(-3)^2 +6(-3) +12))/8
= (-25 +30 +12 +9 +18 -12)/8 = 32/8
m = 4
The average rate of change on the interval is 4.
__
Alternate solution
The first derivative of the function is ...
f'(x) = -2x +6
The average rate of change of a parabolic function on an interval is the rated of change at the midpoint of the interval. Here, the midpoint is x=(5+(-3))/2 = 1, so the average rate of change is ...
f'(1) = -2(1) +6 = 4
What is the y intercept of y= -3x-2
(0,-2) or just -2 is the correct y intercept you can find this by graphing it:)
Answer:
-2
Step-by-step explanation:
we always know that the y intercept is after the x part. for example, if it was
y = 5x + 3 the y intercept would be 3. in this equation, it's negative 2 because of the subtraction sign
Express this ratio in its simplest form.
240cm : 3.6m
La distancia que se recorre por carretera para llegar de Guadalajara a Puerto Vallarta, es de aproximadamente 306 km. Si se viaja a una velocidad promedio de 75km/h ¿cuánto tiempo se hará en ese trayecto?
Responder:
4.08 horas
Explicación paso a paso:
Velocidad = Distancia / Tiempo
Dado
Distancia = 306km
Velocidad = 75 km / h
Necesario
Hora
De la fórmula;
Tiempo = Distancia / velocidad
Sustituye el parámetro dado y obtén el tiempo;
Tiempo = 306 km / 75 km / h
Tiempo = 4.08 horas
Por lo tanto, utilizará 4.08 horas en ese viaje.
How many solutions does the equation have?
x^4 + 7x^2 – 144 = 0
Answer:
The equation has no real solutions. It has 2 imaginary, or complex solutions.
Step-by-step explanation:
Computer salespeople at a local store earn a $100 commission per computer for the first 5 computers they sell each month. For every additional computer they sell during that month, the commission per computer is 1.5 times the rate for the first five. Which of the following is the total commission earned by a salesperson who sells 8 computers in a month?
A. $190
B. $800
C. $950
D. $1,050
E. $1,200
Answer:
The answer is C.
Step-by-step explanation:
Firstly, you have to find the new commission sales after first 5 computera are sold. In order to do so, you have to multiply it by 1.5 :
$100 × 1.5 = $150
Next, you have to find the total amount :
($100×5) + ($150×3)
= $500 + $450
= $950
What is the probability of rolling at least one six on a pair of fair
dice?
It is a 67% percent chance.
The pencils , p, we're divided into 6 groups of 2
⚠️⚠️Write an equation PLEASEE I’m almost done ⚠️⚠️
Answer:
6 divided by 2 =p (a made a little graph at the bottom to demonstrate)
Step-by-step explanation:
. . . . . . Graph←
. . . . . .
The difference 3 1/2 minus 1 1/2 must be
between and
Answer:
2
Step-by-step explanation:
3 1/2 - 1 1/2 = 2
PLS GIVE BRAINLIEST
What is the slope-intercept equation for the line below?
(5, 4)
(0, 2)
Answer:
=
2/5x +2
Step-by-step explanation:
let me know if im wrong
hope it helps :)
Answer:
A. y=2/5x +2
step-by-step explanation:
hope this helped :-)
How many liters each of a 45% acid solution and a 70% acid solution must be used to produce 50 liters of a 65% acid solution? (Round to two decimal places if necessary.)
Answer:
The number of liters of the 45% acid solution = 10 liters
The number of liters of the 70% acid solution is = 40 liters
Step-by-step explanation:
How many liters each of a 45% acid solution and a 70% acid solution must be used to produce 50 liters of a 65% acid solution? (Round to two decimal places if necessary.)
Let x be the number of liters of the 45% acid solution
The number of liters of the 70% acid solution is y
x + y = 50
x = 50 - y
Also
How many liters each of a 45% acid solution and a 70% acid solution must be used to produce 50 liters of a 65% acid solution?
We have:
45% × x + 70% × y = 65% × 50
0.45x + 0.70y = 0.65 × 50
0.45x + 0.70y = 32.5
We substitute x = 50 - y in the equation
0.45(50 - y) + 0.70y = 32.5
= 22.5 - 0.45y + 0.70y = 32.5
= - 0.45y + 0.70y = 32.5 - 22.5
= 0.25y = 10
Divide both sides by 0.25
= y = 10/0.25
y = 40 liters
x = 50 - y
x = 50 - 40
x = 10 liters
Hence,
The number of liters of the 45% acid solution = 10 liters
The number of liters of the 70% acid solution is = 40 liters
pls answer QUICK PLSSSS
Step-by-step explanation:
1) 13.57
+2.93
With this, we subtract from the back Meaning we add starting from back to forward;
13.57
+2.93
16.50
We have that because when you add 7 and 3 you get 10 so we write the 0 there and add the remaining 1 to the 5 making it 6 and then 6 plus 9 will give you 15 then we write the 5 then we add the remaining 1 to the 3 making it 4 then we add the 4 to the 2 making it 6 after this there is no remainder so we just write the 1.
The length of x 200 feet
Answer:
If the length of x is less than 200, then add <.
If the length of x is more than 200, then add >.
If the length of x is 200, then add =.
Step-by-step explanation: