f(2)-f(4) when f(x)=2x+1
Evaluate and solve
Answer:
f(2)= 5 and f(4)=9= -4
Step-by-step explanation:
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[tex]f(x) = 2x + 1[/tex]
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[tex]f(2) = 2(2) + 1[/tex]
[tex]f(2) = 4 + 1[/tex]
[tex]f(2) = 5[/tex]
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[tex]f(4) = 2(4) + 1[/tex]
[tex]f(4) = 8 + 1[/tex]
[tex]f(4) = 9[/tex]
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[tex]f(2) - f(4) = 5 - 9 = - 4[/tex]
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Matt filled his pail with 16 kg of sand, but found that it was too heavy to carry. He scooped out 7 kg of the sand. What is the mass of the sand in the pall now?
9 g
9001
9 kg
9g
Answer:
9kg
Step-by-step explanation:
..................
Answer:
9kg
Step-by-step explanation:
16k-7kg=9kg
Mrs. Nixon went to the store to buy candy for her
students. Candy was on sale for $0.90 per
pound. If Ms. Nixon purchased 2.5 pounds of
candy, how much did she pay?
Answer:
$2.25
Step-by-step explanation:
First, we (always) highlight key details. In this case, we would highlight that th candy is 90 cents per pound, and the she bought 2.5 pounds. Now, we just multiply 2.5 by .90, and boom! We get $2.25. Mrs. Nixon spent $2.25 (or two dollars and twenty-five cents) on candy bars.
what is the solution of the equation 2/5x - 4 = 26
Answer:
x=75
Step-by-step explanation:
2/5x=26+4
2/5x=30
2x=30*5
2x=150
x=150/2
x=75
Answer: x=75
Step-by-step explanation:
3
Graph y = 3/4X + 2
Answer:
Step-by-step explanation:
For some reason my other one didn't post the file
If this helped could I get brainliest please?
Mr. Lin received a box of books in the shape of a rectangular prism. The volume of the box is 486 in 3. What is the width of the
box?
18 in.
Use the formula W=Th, where l is the length of the prism, h is the height, V is the volume, and w is the width.
6 inches
9 inches
27 inches
81 inches
Mark this and return
Save and Evi
Answer:
W = 9 inches.
Step-by-step explanation:
The volume of a rectangular prism is given by
[tex]V=whl[/tex]
Where
w,h and l re width, height and length of rectangular prism
It is not mentioned that a box has a length of 18 inches and a height of 3 inches.
Using above formula.
[tex]486=w\times 18\times 3\\\\486=54w\\\\w=9\ \text{inches}[/tex]
So, the width of the box is 9 inches.
if each side of the cube shown above has the same length as the measured side what is the approximate volume of the cube
Answer:
The measured side is not shown, so i will answer in a general way.
A cube is a 3-dimensional object with 6 square faces.
You know that all the sides of a square have the same length, then is the same for the cube.
To calculate the volume of a cube, we start with the area of the base.
The base is a square of sidelength L (Suppose that L is the length of the measured side)
The area of the base is:
A = L^2.
To find the volume, we must multiply the area of the base by the height of the fire (because the section of the base does not change).
And the height of the cube is also L.
Then the volume is:
V = L*a = L^3
Two groups of hikers take two different routes from Camp A to Camp B. The first group leaves Camp A at 9:00 AM and takes a route that is 30 miles longer than the second group's route. The second group leaves Camp A at 1:00 PM. Their hiking speed is 2 mph slower than the first group's speed. Both groups reach Camp B at 4:00 PM. How fast does each group hike?
Answer: first groups hiking was 6mph, second groups was 4mph.
Step-by-step explanation:
Speed of first group = 6 mph
Speed of second group = 4 mph
We are told that first group leaves Camp A at 9:00 AM.If the normal distance between camp A and camp B is x, then the total distance this first group covers will be;
(x + 30) miles
This first group reached camp B at 4pm. This is 7 hours from when they left camp A.Thus, their speed is;
v1 = (x + 30)/7 mph
We are told that;Second group left by 1pm and got to camp B by 4pm. This is 3 hours.
We are also told that their speed was 2mph slower than the first group.Thus;
v2 = ((x + 30)/7) - 2 mph
Since normal distance from camp A to camp B is x. Then this second group will have;x = ((x + 30)/7) - 2) × 3
Since;
distance = speed × time
Divide both sides by 3 to get;
x/3 = ((x + 30)/7) - 2)
Multiply through by 21 to get;
7x = 3(x + 30) - 42
7x = 3x + 90 - 42
7x - 3x = 48
4x = 48
x = 48/4
x = 12 miles
Thus, putting 12 for x in V1 equation gives;
v1 = (12 + 30)/7
v1 = 42/7
v1 = 6 mph
Similarly;
v2 = ((12 + 30)/7) - 2
v2 = (42/7) - 2
v2 = 6 - 2
v2 = 4 mph
Read more at; brainly.com/question/18642827
You just bought a car and need to expand your driveway by pouring more concrete. If the dimensions of the addition are 11ft by 6.5ft how many square feet of concrete do you need to pour?
PLEASE SOLVE QUICKLY I WILL MAKE YOU BRAINLIEST!!!
solve for both X and Y, please do it fast it's due soon!!! thankyou!!
Answer:
x=25°, y=18°
Step-by-step explanation:
Solved! Here is the explanation. As we have supplementary angles, we have a total of 180° of angles. Angle BXD is a right angle, so 2x+40°=90°. 2x=50°, and then we have x=25°. Now, to figure out y, we have to look at angle BXA. In this case, 5y=90°. y=18°. So, x=25° and y=18°. Hope this explanation helps!
PLEASE HELP ASAP!! 50 POINTS!!
The following table shows how far a bus has gone in t hours. Which of the following equations represents this information?
A. d = 50t + 22
B. d = 61t
C. t = 61d
D. t = 50d + 22
Answer:C
Step-by-step explanation:
Answer:
t=61 d
Step-by-step explanation:
c is your answer
Which one don’t lie!!!
Answer:
A
Step-by-step explanation:
m=y2-y1/x2-x1
4-2=2
6-3=3
2/3
hope this helps =3
Answer:
The answer is 2/3
Step-by-step explanation:
What is .85 as a percent
Answer:
85%
Step-by-step explanation:
Move the zeros two places
At a sale, coats were sold for $136 each. This price was 85% of a coat's original price. How much did a coat originally cost?
The area of a triangle is 1,440 cm2. The base of the triangle is 5 times the height. What is the height of the triangle?
Answer:
The height of triangle is 24 cm.
Simplify 2m - 7x + 6 + 3x - 4 by COMBINING LIKE TERMS.
Answer:
2m - 4x + 2
Step-by-step explanation:
Combine -7x and 3x which gives your the -4x
Combine the -4 and 6 to give you the 2
The cost of 6 team sweatshirts is $84.
At this price, how much would it cost to
buy sweatshirts for a whole team of 24
players?
Answer:
336
Step-by-step explanation:
HELP ME PLEASE!!! I NEED HELP!!!!
Answer:
If I had to take a guess, I'd say B.
Step-by-step explanation:
Which table represents a proportional relationship that has a constant of proportionality equal to 0.8?
Answer:
correct answer is B
Step-by-step explanation:
hi
which is the greatest among root 2, 3 root 4 and 4 root 3?
Answer:
4^1/3 is greatest among the given
Step-by-step explanation:
√2 , 4^1/3 , 3^1/4
Find the LCM of 2, 3 , 4= 12
i ) √2 =2^1/2 = 2^6/12=(2^6)^1/12
= (64)^1/12
ii ) 4^1/3 = 4^4/12 = (4^4)^1/12
= (256)1/12
iii )3^1/4 = 3^3/12 = ( 3³ )^1/12
= (27)^1/12
Therefore ,
(256)^1/12 > (64)^1/12 > (27)^1/12
4^1/3 > 2^1/2 > 3^1/4
4^1/3 is greatest among the given
number
if f(x)=2x^3-2, what is the value of f(2)
Answer:
The answer is F(2) is equal to 15
Step-by-step explanation:
My knowledge is so powerful my brain hurts when I think.
Hope this helped
this was easy!
let me know if you want help with anything else
15 POINTS PLEASE HELP! It is known that 3 is less than y is less then 7. Find the possible values of the expression:
a) 8y
b)14-2y
Answer:
[tex]a) 8y = 32.\\b)14-2y = 6.[/tex]
[tex]the \: right \: expression \: for \\ 3 \: is \: less \: than \: y \: is \: less \: than \: 7 \: is \\ 3 < y < 7. \\ then \\ y \: can \: be \: any \: value \: form \: (4 \: to \: 6). \\ so \: if \: y = 4. \\ then \\ 8y = 8 \times 4= 32. \\ and \\ 14 - 2y = 14 - 2 \times 4 = 6.[/tex]
The maximum and minimum value of the expressions are -
1 - 8y Max [1] = 48 Min [1] = 32
2 - 14 - 2y Max [2] = 6 Min [2] = 2
What is inequality?
In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.
Given is that 3 is less than y is less then 7.
We can write the inequality -
3 < y < 7
Expression 1 : 8y
Maximum value of the expression = Max [1] = 48
Minimum value of the expression = Min [1] = 32
Expression 1 : 14 - 2y
Maximum value of the expression = Max [2] = 14 - 2 x 4 = 14 - 8 = 6
Minimum value of the expression = Min [2] = 14 - 2 x 6 = 14 - 12 = 2
Therefore, the maximum and minimum value of the expressions are -
1 - 8y Max [1] = 48 Min [1] = 32
2 - 14 - 2y Max [2] = 6 Min [2] = 2
To solve more questions on Evaluating experience, visit the link below-
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What is the equation olf the line that is parallel to the gven line and has an x-intercept of 3? Oy-x+3 Oy-x+2 Oy=-x+3 Oy=-x+2
Answer:
It’s D
Step-by-step explanation:
The equation of the parallel line is y = x - 3, the correct option is C.
What is y-intercept of a function?The intersection of the graph of the function with the y-axis gives y-intercept of that function. The y-intercept is the value of y on the y-axis at which the considered function intersects it.
Assume that we've got: y = f(x)
At y-axis, we've got x = 0, so putting it will give us the y-intercept.
Thus, y-intercept of y = f(x) is y = f(0)
We are given that;
x-intercept = 3
Now,
we can find the equation of the line parallel to the given line and passing through the point (3, 0):
The given line has an equation of y = x + 3. This is already in slope-intercept form, so we can see that the slope is 1. The parallel line will have the same slope of 1.
The point that the parallel line passes through is (3, 0). We can use this point and the slope to write the equation of the parallel line in point-slope form:
y - 0 = 1(x - 3)
y = x - 3
Therefore, the slope intercept will be y=x-3
Learn more about y-intercept here:
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HELP !!! A survey was conducted in a super store to study the monthly turnover in the number of clients
This survey revealed that:
• During the first month 5000 clients made their purchases from the store
• Each month 30% of the clients of the preceding month stopped to make their purchases from their
store and 1800 new clients joined the remaining clients of this store.
Denote Un the number of clients that make their purchases during the nth month
Let Un+1 = 0.7Un + 1800
1) Find U1 , U2 and U3
2) Show that the sequence Un is neither arithmetic nor geometric
3) Let the sequence (Vn) be denoted by Vn= 6000 – Un. Prove that Vn is a geometric sequence, whose
common ratio and 1st term are to be determined.
4) Calculate S = V1 + V2 + ….. + V6
5) Calculate Vn in terms of n
6) Deduce Un in terms of n
Answer:
this is a lot
Step-by-step explanation:
Answer:
Ja kmsazt zaednaie
Step-by-step explanation:
((h – k)(3)
Please answer quickly!!!!
Answer:
[tex](h – k)(3) = h3 - k3[/tex]
if sally has 456 bells for her cows and her friend only has 1 and sally gives her friend 400 how many does sally have left?
Answer:
Step-by-step explanation:
Sally will have 56 bells left over. It is simple subtraction you subtract 400 from 456 because that is how many bells she is giving away.
Also would appreciate it if you could mark me Brainly.
1+1
try to guess :) you will get 33 points
Answer:
69?
Step-by-step explanation:
WILL MARK BRAINLY AND CASHAPP
2(x) = 3x^(2)+ 2x
Answer:
x=0
Step-by-step explanation:
to solve the equation:
2(x) = 3x²+ 2x
swap the sides:
3x² = 0
Divide both sides:
x²=0
Solution:
x=0
what does a transformation mean?
Answer: Transformation means to change in a form like for example it can changes in any given geometric shape.
What is the degree of the expression below?
x2-3x +7
Answer:
1
Step-by-step explanation: