Factor GCF (greatest common factor)

2k^2 + 7k

Answers

Answer 1
Simplifying 2k2 + 7k = 0 Reorder the terms: 7k + 2k2 = 0 Solving 7k + 2k2 = 0 Solving for variable 'k'. Factor out the Greatest Common Factor (GCF), 'k'. k(7 + 2k) = 0 Subproblem 1Set the factor 'k' equal to zero and attempt to solve: Simplifying k = 0 Solving k = 0 Move all terms containing k to the left, all other terms to the right. Simplifying k = 0 Subproblem 2Set the factor '(7 + 2k)' equal to zero and attempt to solve: Simplifying 7 + 2k = 0 Solving 7 + 2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2k = 0 + -7 2k = 0 + -7 Combine like terms: 0 + -7 = -7 2k = -7 Divide each side by '2'. k = -3.5 Simplifying k = -3.5Solutionk = {0, -3.5}

Related Questions

True or False: The sum of all the angles around a point is 180°.

Answers

this statement is false
Hope this helps






that statement will be false 

Need help asap! Need to find the value of x

Answers

X-45+x+x-45+x-45+x=540, x=135
uvghvghb mb bm nk bjnjbkjbkbk khbh khbhk h b jbn  h jhb

Vertex F of ΔDEF has coordinates (−3, 7). If ΔDEF is reflected over the y-axis, what are the coordinates of vertex Fʹ?

Will give brainliest

Answers

The reflection will be on the other side of the y-axis.
Its coordinates will be (3, 7).

A school collected x food items and divided them equally among 6 charities. Each charity received 250 items. How many items did the school collect?

Answers

The school collected 1500 cans

1,500 you just have to multiply 250 times 6. since each charity received 250 items and there are 6 charities. Don't know if i explained it right but the answer is 1,500
 

If Amanda walks at an average speed of 2.72 miles per hour, how long will it take her to walk 6.8 miles?

Answers

it is 2.5
hope this helped

which coin has a diameter with a 5 in the hundredths place?


U.S Coins
________________________________
Penny | 0.750 |
________________________________|
Nickle | 0.835 |
________________________________|
Dime | |
________________________________|
Quater | 0.955 |
________________________________|
Half Dollar | 1.205 |
________________________________|

Answers

It would be both the penny and the quarter.

The hundredth place would be the third one from the left.

_._ _ _

So therefore the quarter and penny both have a five in that spot.

the height of a tree was 8 feet. after a year, tree's height increased by 25%. use a bar diagram to find the new height of the tree?

Answers

8×.25=2
8-2=6
so what you would do is make a bar graph where the y axis would be years and the x axis being height

f(x)=2x+3 find x=9 explain how you got the answer please help me I need the answer today

Answers

You would fill in 9 for x so your equation would be 2(9)+3 and you would then get 21. Therefore the answer is f(x)=21

Please help, need asap

Answers

For the first option, since when x is going down (to the left) the function is going up, it's not approaching 0. For the second option, since when x is going up (to the right) it's going up, it's not approaching negative infinity (negative infinity is all the way down). For the third one, since when x is going down the y values are climbing, we can assume that the function's values go to positive infinity. For the last one, since when x=0 y=0, when x=0 the function does not go to infinity

The sum of five consecutive numbers is -20. Which is the least of these five numbers?

Answers

Since the numbers are consecutive, they can be represented by:
x, x+1, x+2, x+3, x+4

Their sum is -20 = x+x+1+x+2+x+3+x+4.  Result:  -20=5x+10, or 5x=-30, or x = -6.

Then the numbers are -6, -5, -4, -3 and -2.  These do add up to -20, as required.

The smallest of these is -6.
Consecutive numbers means 1,2,3 or 102,103,104 etc.

2,3,4,5,6 add to 20
So -2, -3, -4, -5, -6 add to -20

-6 is the least of the 5 consecutive numbers which sum to-20

What is the resluf of convertig 14 inches into centimeters? Remember that 1 inch =2.54 centimeters.

Answers

multiply 14 x 2.54

14 x 2.54 = 35.56 centimeters

A soda shop owner told his employee to add 2 full cups and 1/5 of a cup of syrup to each gallon of soda. If there were 4 gallons of soda, how much syrup would be needed? Show your work.

Answers

To find the amount of syrup, multiply the amount of syrup per gallon by the number of gallons of soda. In this case, this would be 2 1/5 cups and 4 gallons.

2 1/5 x 4

(Changing the mixed number 2 1/5 to an improper fraction!)

11/5 x 4/1 = 44/5

(Change back to a mixed number after multiplying!)

8 4/5 cups of syrup

Hope this helps!! :)

2 and 1/5 cups for one gallon, so for four gallons, you did four times as much. 2•4=8, and 1/5•4=4/5, so you need 8 and 4/5 cups of syrup

Simplify .4 ^ square root of 6
-----------------------------
5 ^ square root of 6

Answers

Simplified the answer is in decimal form 0.00000026.
4^√6 / 5^√6

0.5789

hope that helps, God bless!

The following table shows the number of hours some high school students in two states spend surfing the Internet each week:

State A
35
36
35
34
35
38
36
36
38

State B
24
22
20
50
25
24
65
25
26


Part A: Create a five-number summary and calculate the interquartile range for the two sets of data. (6 points)

Part B: Are the box plots symmetric? Justify your answer. (4 points)

Answers

1st data set:

Minimum: 34
1st quartile: 35
Median: 36
3rd quartile: 37
Maximum: 38

Second data set:
Minimum: 20
1st quartile: 23
Median: 25
3rd quartile: 38
Maximum: 65

Graph it based on the values of the 1st and 3rd quartile. If they are both the same number away from the mean then they are symmetrical. Otherwise they are not. In this case, the first one is similar and the second one is not.

Please mark as brainiest!
Cheers

What’s 28.2 rounded to the nearest tenth

Answers

It's already rounded to the nearest tenth
28.2 to the nearest tenth is 28.2

If y= 3x - 5 find the value of y when x = -1

Answers

3 times -1 is -3. -3 - 5 is -8 so -8 is the answer.
y= 3(-1) -5
y= -3 -5
 the answer is y= -8

Alex has 175 baseball cards.Rodney has 3 times as many baseball cards as Alex.How many fewer cards does Alex have than Rodney?

Answers

Alex = 175 baseball cards 

Rodney = 175 * 3

Rodney = 525 

Rodney - Alex = 525 - 175 = 350

Alex has 350 less cards than Rodney 

The difference between Rodney's and Alex's baseball cards is 350.

Alex has 350 fewer baseball cards than Rodney.

What is subtraction?

Subtracting means to take away from a group or a number of things.

When we subtract, the number of things in the group reduces or becomes less.

We have,

The number of baseball cards Alex has:

= 175

The number of baseball cards Rodney has:

= 3 x 175

= 525

We need to find out how much Alex's cards are fewer than Rodney's cards so we find the difference between the number of cards between them.

The difference between Rodney's and Alex's baseball cards:

=  525 - 175

= 350

Thus Alex has 350 fewer baseball cards than Rodney.

Learn more about subtraction here:

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74=53-7x I have to solve for x and havent quite grasped the concept of algebra

Answers

If 74 = 53-7 • x you have to figure out the rest of the problem by working backward.
53 - 7 = 46
So you have to divide 74 and 46 to get x.
74/46 = 1.6086
You then multiply 1.6086 and 46 which is 73.995 which rounds to 74.
53-7 = 46; 74/46 = 1.6086; 1.6086 • 46 = 74

Hope this helped, if you need it explained more just ask!! :)

For every 240 days of milking, cow's milk production decreases by 2.

Which shows the average change in cow's production?

A. -120 gallons per day
B. - (1/120) gallons per day
C. 1/20 gallons per day.
D. 120 gallons per day.

Answers

It's B. 1/120 gallons per day

The solution is Option B.

The slope / average change in cow's production is m = - 1/120 gallons per day

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of the equation A is

For every 240 days of milking, cow's milk production decreases by 2

So , the value of y = 2 gallons

The value of x = 240 days

Now , the slope of the equation is given as

Slope m = y/x

And , The slope of a line is a measure of its steepness, slope is calculated as "rise over run" or change in y divided by change in x

Substituting the values in the equation , we get

Slope m = 2/240

Slope m = 1/120

Since the cow's milk production decreases by 2 , the slope will be negative

So , slope m = -1/120 gallons / day

Hence , the average change in cow's production is -1/120 gallons / day

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a road sign casts a shadow 14 meters long while a nearby tree casts a shadow 27.8 meters long. if the road sign in 3.5 meters high how tall is the tree

Answers

The tree is about 6.95 meters tall.

The height of the tree is 6.95 m

What are similar triangles?

Two triangles are said to be similar triangles if their corresponding sides are in equal ratio and corresponding angles are congruent.

Given that, a road sign casts a shadow 14 meters long while a nearby tree casts a shadow 27.8 meters long and the road sign in 3.5 meters

Since, both the figures will be the similar triangles,

Then, by definition of similar triangles,

Therefore,

Let the height of the tree be x,

3.5 / 14 = x / 27.8

x = 6.95

Hence, the height of the tree is 6.95 m

Learn more about similar triangles, click;

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What is 6.5 c =____ fl oz

Answers

 here you go :
6.5 c = 52 fl oz

hope i helped :-)

1 cup = 8 fluid ounces

6.5 cups x 8 = 52 fluid ounces

Express as decimal numerals one and three hundred twenty four thousandths

Answers

The answer would be 1.324

One and three hundred twenty four thousandths expressed as a decimal numeral is [tex]1.324[/tex].

To express "one and three hundred twenty four thousandths" as a decimal numeral, follow these steps:

Understand the components:

• "One" represents the whole number part.

• "Three hundred twenty four thousandths" represents the fractional part.

Express the whole number part as a decimal:

• The whole number "one" is simply [tex]1[/tex].

Convert the fractional part to a decimal:

• "Three hundred twenty four thousandths" means 324 out of 1000, which can be written as the fraction [tex]\frac{324}{1000}[/tex].

• To convert [tex]\frac{324}{1000}[/tex] to a decimal, divide 324 by 1000. This gives us [tex]0.324[/tex].

Combine the whole number and the fractional part:

• Add the whole number part [tex]1[/tex] to the fractional part [tex]0.324[/tex]. This results in [tex]1 + 0.324 = 1.324[/tex].

Joe bought 5.8 pounds of grapes to have as a snack with his 10 friends.If he shares his grapes evenly,how many pounds of grapes will each of his friends get?

Answers

Divide 5.8 by 10. Answer is .58 pound

Answer: Each friend will get 0.527 pound of grapes.

Step-by-step explanation:

We are given that Joe bought 5.8 pounds of grapes to have as a snack with his 10 friends.

Total persons including Joe = 10+1= 11

If he shares his grapes evenly, then by division operation , we have

Number of pounds of grapes will each of his friends get will be

[tex]5.8\div11\approx0.527[/tex] pounds

Therefore, each friend will get 0.527 pounds of grapes.

A number is subtracted from 7, then multiplied by 3. The answer is half the original number. What is the number?

2
2.8
6
6.83
8.4

Answers

The answer is 2 because 2(3)= 6, and 7-6= 1. And 1 is half of the original, which is 2!

Equation of the tangent line

Answers

Find the eqn. of the tangent line to the curve of f(x) = x^2 + 5x -5 at (0,-5).

Differentiate f(x) to obtain an expression for the derivative (slope of the tangent line):

             f '(x) = 2x + 5

Subst. 0 for x here:  f '(0) = 2(0) + 5 = 5     (at the point (0, -5))

Use the point-slope equation of a str. line to find the eqn of the tan. line:

y-k = m(x-h), where (h,k) is a point on the line and m is the slope:

y - [-5] = 5(x-0), or y+5 = 5x.  Then y = 5x - 5 is the eqn. of the TL to the given curve at (0,-5).

If seven pencils cost $.84 find the cost of 10 pencils

Answers

Salutations!

If seven pencils cost $.84 find the cost of 10 pencils?

Lets solve this!

To solve this question, you need to first divide .84 ÷ 7 which gives you the answer 0.12. Then multiply 0.12 with 10 which gives you the cost of 10 pencils. 0.12 is the cost of only one pencil.

Lets forms this into statements ---

Cost of 7 pencils = $ .84

Cost of 1 pencil = $ 0.12

Cost of 10 pencil equals = .84 ÷ 7 = 0.12

                                      = 0.12 × 10 = 1.2

Cost of 10 pencils is $1.2

Hope I helped (:

Have a great day!

Final answer:

To calculate the cost of 10 pencils when seven pencils cost $0.84, you find the price per pencil by dividing $0.84 by 7, which equals $0.12 per pencil. Then, multiply $0.12 by 10 to get the total cost of 10 pencils, which is $1.20.

Explanation:

To answer the question, we first need to find the cost of one pencil. Since seven pencils cost $0.84, we can divide that amount by seven to get the cost of one pencil.

Here is the calculation:

Cost of seven pencils = $0.84

Cost of one pencil = $0.84 ÷ 7

Cost of one pencil = $0.12

Now that we know the cost of one pencil, we can find the cost of 10 pencils by multiplying this amount by 10.

Here is the calculation:

Cost of 10 pencils = $0.12 × 10

Cost of 10 pencils = $1.20Therefore, the cost of 10 pencils is $1.20.

2 please answer this question

Answers

B. End of the reconstruction. 
End of Reconstruction, lot of it is him winning by one electoral vote.

Ms. Zab gave a group of five students a total of 18.75 liters of water for a science experiment. If each student in the group used the same amount of water for their experiment, how much water did each student use?

Answers

D. 3,750 mL
Because you have to convert liters to milliliters

And help on this one too.

THANKYOU!

Answers

For every ladybugs = +5 points
For every stinkbugs = -3 points

4 ladybugs and 8 stinkbugs in all

4(5) = 20
8(-3) = -24

20 - 24 = -4

The Players score is -4

hope this helps

Solve the equation. What is the value of x? x-6.8=356.3

Answers

the answer is 363.1 i used a calculater to find the answer. so 356.3+ 6.8 = 363.1 so x=363.1

To solve the equation x - 6.8 = 356.3, add 6.8 to both sides to isolate x, resulting in x = 363.1.

To solve the equation x - 6.8 = 356.3, we need to isolate the variable x. To do this, we can add 6.8 to both sides of the equation, effectively moving the 6.8 from the left side to the right.

Step-by-step:

Add 6.8 to both sides: x - 6.8 + 6.8 = 356.3 + 6.8Simplify both sides: x = 363.1

The value of x is 363.1.

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