Which expression is equivalent to 2(x2 – 1) + 3x(x – 4)?
(1) 5x2 – 5
(3) 5x2 – 12x – 1
(2) 5x2 - 6
(4) 5x2 – 12x – 2
The equivalent expression of 2(x² – 1) + 3x(x – 4) is 5x² - 12x - 2
How to find equivalent expression?
The equivalent expression of the expression can be found as follows;
2(x² – 1) + 3x(x – 4)
open the brackets
2x² - 2 + 3x² - 12x
Therefore, let's combine like terms
2x² + 3x² - 12x - 2
Let's do the arithmetic for like terms
2x² + 3x² - 12x - 2
5x² - 12x - 2
Therefore, the equivalent expression of 2(x² – 1) + 3x(x – 4) is 5x² - 12x - 2
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Solve for x.
5+(x−2)=8
Enter your answer in the box.
x =
Answer:
5
Step-by-step explanation:
5+(x-2)=8
5+x=10
x=5
Answer: x=5
Step-by-step explanation:
Annie's homemade chili recipe calls for 2 pounds of ground beef for every 5 cans of beans. How many pounds of ground beef does she need for 1 can of beans? *
What is the volume of the sphere in terms of ?
V =
.7 in 3
6 in.
Answer:
[tex]V = 288\pi[/tex]
Step-by-step explanation:
Given
[tex]r = 6[/tex]
Shape: Sphere
Required
The volume
The volume of a sphere is calculated using;
[tex]V = \frac{4}{3}\pi r^3[/tex]
Substitute 6 for r
[tex]V = \frac{4}{3}\pi * 6^3[/tex]
[tex]V = \frac{4}{3}\pi * 216[/tex]
Divide 216 by 3
[tex]V = 4\pi * 72[/tex]
[tex]V = 288\pi[/tex]
Mia took 20 seconds to run 100m. Find the ratio of distance traveled to the time Emma took to run 100m.
Answer:
The ratio should be 100 : 20. If it needs to be simplified then 5:1
Step-by-step explanation:
100 m is the distance traveled and the time it took was 20 seconds. Divide both sides by 20 and you get 5:1
(If it doesn't need to be simplified then 100 : 20)
A company sells fruit smoothies in two sizes: 6 ounces and 20 ounces. You know that a 6-ounce bottle contains 96 milligrams of sodium. If the amount of sodium is directly proportional to the fluid ounces of smoothie, how many milligrams of sodium does a 20-ounce bottle contain?
And can yall put an explanation please
Answer:
320 milligrams of sodium
Step-by-step explanation:
Create a proportion where x is the milligrams of sodium a 20 ounce bottle has:
[tex]\frac{96}{6}[/tex] = [tex]\frac{x}{20}[/tex]
Cross multiply and solve for x
1920 = 6x
320 = x
So, a 20 ounce bottle will have 320 milligrams of sodium
√-1
factor completely without any 'i'
Answer:
the root of -1 is -1
Step-by-step explanation:
When multiplied by itself, the root is typically a specified number of times gives a specified number or quantity. So -1 × -1 = -1
So there you go
PLZ HELP
-7x - 2y = 14
6x + 6y = 18
Answer:
x=-4, y=7
Step-by-step explanation:
Answers : x = (15/6), y =
(1/2).
Step-by-step explanation:
Explanation: To solve this equation through elimination, you need to isolate one of the variable. You can isolate the y variable since the x variables can be subtracted and go away. Add the two equations to get rid of one variable. (6x + 6y = 18) + (-6 + 2y = -14) = (8y = 4). Now you need to solve for y. y = 4/8, y = 1/2. Now, plug the y back into one equation and solve for x. 6x + 6(1/2) = 18. 6x + 3 = 18. 6x = 15. x = 15/6. Plug the two answers back in to the equation to check your answers. 6(15/6) + 6(1/2) = 18, 15 + 3 = 18. -6(15/6) + 2(1/2) = -14, -15 + 1 = -14.
Please help :( im stuck!!
Explain please:
A building in the shape of a rectangular pyramid is used to store construction stones. The building has a volume of 21,000 ft3 . A new building is being designed. It will also be in the shape of a rectangular pyramid, but compared to the existing building, the length of its base will be scaled by a factor of 23 , and the width of its base will be scaled by a factor of 53 . The height of the new building will be scaled such that the volume of the new building will be the same as the existing building. What scale factor will be used for the height of the new building?
Answer:
you taking that end of module assessment too?
Step-by-step explanation:
Help me for Brainlyiest ong provide proff
Answer:
5-(-7)=5+7
Step-by-step explanation:
When there are two negative signs, that means it switches into a plus sign.
If this helps please mark as brainliest would really appreciate it
A pole casts a 6-foot shadow. If the distance from the top of the pole to the tip of the shadow is
10 feet, how many feet high is the pole?
a) 4
b) 8
c) 12
d) 16
e) 20
Adam went to McDonald's and bought a Big Mac and 2 small fries. Adam spent
$10.93. The Big Mac cost 5.99. How much did the two small fries cóst each? Write
an equation to match the problem. Use f as the variable. *
Answer:
the answer is 4.94 because you subtract 10.93-5.99
57% of a number is 216.6.
What is the original number?
Answer:
340.062
Step-by-step explanation:
Answer:
163.4
Step-by-step explanation:
The volume of a cylinder is 256 in height of the cylinder is 1 in. What is the radius of the cylinder?
Answer:
5.903 for radius
which expression represent a number that is one fourth as great as 10 - 2
Answer:
5
Step-by-step explanation:
Answer:
vyvjkyivfiytgigtf 7igggg8t79
Step-by-step explanation:
(5-2i)(1-3i) solve in steps
please help! rate of change solving for Y, linear relationships
If Laura were able to find a 0 iron, about how far could she hit it?
Answer:
I got 219 but I'm not sure that's the answer.
Step-by-step explanation:
A ball falls vertically after being dropped.
The ball falls a distance dmetres in a time of t seconds.
dis directly proportional to the square of t.
The ball fals 20 metres in a time of 2 seconds.
(a) Find a formula for din terms of t.
Answer:
d = 5t^2
Step-by-step explanation:
"d is directly proportional to the square of t"
d = kt^2
To find k use
"The ball falls 20 metres in a time of 2 seconds."
20 = k(2^2)
20 = k(4)
Divide both sides by 4
5 = k
Using k = 5 the formula becomes
d = 5t^2
You are making a fruit salad for a family dinner and only have $32 to spend making it. Grapes(x) cost $4 per pound and watermelon(y) cost $2 per pound.
Model the problem situation with a linear inequality.
Answer:
this is easy. you just need to write and equation that shows how many pounds of each fruit you can buy in total (x for 1 pound of grapes and y for 1 pound of watermelon). this would make the equation 32 = 4x + 2x.
evaluate tan-1 (1.6) giving your answer to the nearest degree
Answer:
58degrees
Step-by-step explanation:
Given
tan^-1(1.6)
= tan^-1(16/10)
= tan^-1(8/5)
= 57.99 degrees
Hence the value of tan^-1(1.6) to the nearest degrees is 58degrees
The solid below is made from 1 meter cubes. Find its surface area. Please help & no links!!
Answer:
48 meters
Please Mark Brainliest, Hope It Helps
Step-by-step explanation:
A=2(wl+hl+hw)
A=2 ( (2)(5)+(2)(5)+(2)(2) )
A= 2(24)
A=48
Keira wrote a report about Jamaica and made a replica of the country’s flag. Keira’s rectangular flag is 32 inches wide and 24 inches long. She purchased wide yellow ribbon to create the X design on the flag as shown.
How many total inches of ribbon did Keira use to create the design?
A. 40in
B. 80in
C. 32in
D. 24in
Answer:
I think C
Step-by-step explanation:
Over the next two days, Benton Employment Agency is interviewing clients who wish to find jobs. On the first day, the agency plans to interview clients in groups of 6. On the second day, the agency will interview clients in groups of 8. If the employment agency will interview the same number of clients on each day, what is the smallest number of clients that could be interviewed each day?
I DONT NEED LINKS PLEASE I NEED A ANSWER
Increase 220kg by 12.5%
Answer:
247.5kg
Step-by-step explanation:
u find 12.5% of 220, then add it
220*12.5% =27.5
220+27.5=247.5
PLEASE HELP ASAP This probability distribution shows the
number of times a group of people takes
selfies before liking them.
Retakes
0
1
2.
3
4
Frequency
27
29
18
14
12
Using this distribution, find the probability that a
person will retake their selfie exactly 1 time.
p = [?]
Answer:
The probability is 0.29
Step-by-step explanation:
Firstly, we need to know the total number of retakes
That is simply the sum of the frequencies
we have this as;
27 + 29 + 18 + 14 + 12 = 100
so the probability of retaking exactly once will be the number of 1 retakes divided by total
That would be 29/100 = 0.29
Patty made a banner that has an area of 112 square inches. The length and width of the banner are whole numbers. The length is 7 times greater than the width. What are the dimensions of the banner?
Answer:
The width of the banner is 4 inch and the length of the banner is 28 inch
Step-by-step explanation:
Given
Length is seven times its width
Let the width be "X", then length would be 7X
The banner is of rectangular shape.
Its area is 112 square inches
[tex]X* 7X = 112\\7X^2 = 112\\X^2 = 16\\X = 4[/tex]
Hence, the width of the banner is 4 inch and the length of the banner is 4*7 i.2 28 inch
What is the value of x in the drawn figure?
A. 45
B. 3
C. 27
D. 19.8
Answer:
A 45
Step-by-step explanation:
45 is the answer and hope this helps!
Answer:
x = 3
Step-by-step explanation:
2x = 5x - 9
add 9 to each side
2x + 9 = 5x
subtract 3x from each side
9 = 3x
divide each side by 3
3 = x
x = 3
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Show that each statement is false by providing a comterexample
Answer:
Step-by-step explanation:
One
Length = 16
Width = 1
Two
<P = 120
<Q = 30
<R = 30
Three
xy = 45
yz = 1
Four
<1 = 45
<2 = 45
please answer this for me. also please show your work. thanks
Answer:
here, suppose the missing length be X
hy ^2 = (one side square )^2 +(Other side square)^2
29^2= X^2 + 21^2
841 = X^2 + 441
X^2 = 841 - 441
X^2 = 400
X = 20 .........taking square root both side
the value is missing side length is 20 .