What is the value of the expression 2x2 + 5x – 6 when x = 2?

Answers

Answer 1

Answer:

2×2^2 +5×2 -6

= 2×4 +10 -6

= 8+10-6

= 18-6

= 12


Related Questions

hey will give brainiest if correct

Answers

3 inches i agree too 2020

Smith & Johnson produces a variety of men’s clothing. Their highest selling items are their fitted dress shirts. The profit earned from the sale of these shirts can be modeled by the expression -20x2+1,800x, where x is the price of one dress shirt. If p is the maximum profit earned from the sale of the dress shirts, write an equation that shows how the expression can be rewritten to model the price at which the shirts should be set in order to maximize profit.

Answers

Answer:

 P=x(-x+90)

Step-by-step explanation:

Step one:

given

Price

[tex]P= -20x^2+1800x[/tex]

where P is the maximum profit

           x is the price of one shirt

Step two:

To rewrite the expression let us first divide through by 20

[tex]P= \frac{-20x^2}{20} +\frac{1800x }{20}\\\\P=-x^2+90x[/tex]

Factoring x out we have

[tex]P=-x^2+90x\\\\P=x(-x+90)[/tex]

Hence the rewritten expression equation for the price is

P=x(-x+90)

Which of the following is equivalent to 4x-3y=15
A.4/3x-5
B.-4/3x+5
C.4/3x+15
D.3/4x-5

Answers

Answer:

the answer is A

Step-by-step explanation:

A = 4/3x-5

Answer:

Step-by-step explanation:

B

PLEASE HELP WILL MAKE BRAINLIST
What is the solution to 4|x − 3| + 1 = 1?

A.
x = 3
B.
x = 3 or x = 4
C.
x = 3 or x = 6
D.
No solutions exist.

Answers

Answer:

X=3

Step-by-step explanation:

4x-12+1=1

4x=1-1+12

4x=12

x=12/4

x=3

Answer:

x=3

Step-by-step explanation:

Elise doesn't like sorbit, so she omits that ingredient and adds 5 percent to each of the other ingredients. How many cups of punch will she have if she uses 6 cups of orange juice?

Answers

Answer: 20

Step-by-step explanation:

From the question, to make the punch recipe, the following are needed:

Ginger Ale - 40%

Orange Juice - 25%

Pineapple juice - 20%

Sorbet - 15%

Since we are told that Elise doesn't like sorbit, so she omits that ingredient and adds 5 percent to each of the other ingredients. The the new percent will be:

Ginger Ale - 40% + 5% = 45%

Orange Juice - 25% + 5% = 30%

Pineapple juice - 20% + 5% = 25%

Sorbet - 15% - 15% = 0

To get the total cups of punch that'll be used, let it be represented by y. Therefore,

30% of y = 6

30/100 × y = 6

0.3 × y = 6

0.3y = 6

y = 6/0.3

y = 20

Therefore, she'll have 20 cups of punch.

In the picture lines A B and CD are parallel. Find the measures of the following angles. Explain your
reasoning.
1. ZBCD
2. ZECF
3. ZDCF

Answers

1) 38 bc of alternate interior angles
2) 38 bc of corresponding angles
3) 142 bc of supplementary angles and alternate exterior angles

Please help me with my homework!!!!

Answers

Answer:

1. m = 5    2. v = -19    3.  x = 10

4. x = 3     5. x = 32     6. x = -50

Step-by-step explanation:

My mom told me I know everything :D

Two bags of bird seed are used to fill these three bird feeders. How much bird seed does each feeder use? Represent the situation using the model. Then solve

Answers

Step-by-step explanation:

If two bags of bird seed are used to fill these three bird feeders, then we can say that;

2 bags of bird seed = 3 bird feeders

To know the amount of bird seed that each feeder use, we will say;

x bags of bird seed = 1 bird feeder

Equating both postulates and solving

2 bags of bird seed = 3 bird feeders

x bags of bird seed = 1 bird feeder

Cross multiply

3 * x = 2 * 1

3x = 2

subtract 2 from both sides

3x - 2 = 2-2

3x - 2 = 0

Hence model that represents the situation us 3x - 2 = 0 where x is the number of bird seed that each feeder use.

Next is to solve for x;

3x - 2 = 0

3x = 2

x = 2/3

Hence each feeder used 2/3 bird seed

Find the sum by suitable rearrangement 163+432+237+548

Answers

Answer:1380

Step-by-step explanation:

4x-12=12-4x I need help solving Multi Step Equations, which variables on both sides.​

Answers

Answer:

x=  3

Step-by-step explanation:

4x+ 4 x= 12 + 12  

8x = 24

x=  24/8  

x= 3

EQUATIONS AND INEC
Worked examples
a) Solve these simultaneous equation by eliminating by subtraction.
5a + 2b = 16 equation 1
3a + 2b = 12 equation 2​

Answers

Answer:

a=2 and b=3

Step-by-step explanation:

5(2) +2(3) = 10 +6 =16

3(2) + 2(3) = 12

How many 2.25-pound containers can you fill with 24.75 pounds of almonds?

Answers

Answer:

You can fill 11 containers.

Step-by-step explanation:

This problem is asking you to divide 24.75 pounds among 2.25 pound holding containers.

So all you must do is divide 2.25 by 24.75. This leaves us with a quotient of 11.

QUESTION OF THE DAY: Judy is recreating a small version of the Statue of Liberty out of clay. The scale for the statue is 3 inches to 100 feet. If the actual height of the statue is 305 feet, what would the height of the model be in inches?

Answers

Answer:

184in

Step-by-step explanation:

Since the scale for the statue is 3 inches to 100 feet, we can say 3:100 as a ratio.

To find approximately 305 feet you must divide 305 by 100.

100 can go into 300 evenly 3 times. Since the ratio is 3:100 you should multiply how many times the 100ft fit into the 300ft and the 3in (3 x 3) which is about 9in.

One way we can do this is to divide the hight of the Statue by the model height:

305ft 20in = 15.25ft 1in or 184in (12in per foot).

And so for every inch of the model, it represents 15.25 feet.

For 305 it would be

5. Jordan works at the car wash a few hours a week and works mowing lawns for extra money.
Because of his schoolwork, he can't work more than 10 hours per week. Write a rule to see possible
solutions for his work schedule. Let x represent hours at the car wash, and y represent the hours
mowing lawns.

Answers

Answer:

The rule is

x + y ≤ 10

Step-by-step explanation:

Here, we want to write a rule that can help get solutions for the individual work hours

The number of hours for car wash is x while the number of hours for mowing lawns is y

Since he cannot work more than 10 hours, he can still work less than 10 hours

What we just have is that the addition of both working hours must not be over 10

So the rule to write is;

x + y ≤ 10

The radius of a circle is 16.7 in. Find the circumference to the nearest tenth.

Answers

The correct circumference is 105 inches.
16.7 inches times 3.14 in or pie, equals 52.4 inches, and because you were given the radius and not the diameter, you multiply 52.4 inches by 2 to get 104.9 or 105 inches.

The circumference of the circle is 105 in to the nearest tenth.

What is the circumference of the circle?

The circumference of the circle that has a radius of r is defined as the product of diameter to the pie value.

The circumference of the circle = 2πr

We are given that the radius of a circle is 16.7 in.

We need to determine the circumference to the nearest tenth.

Radius r = 16.7

Then circumference of the circle = 2πr

= 2 x 3.14 x 16.7

= 104.87

Therefore, the circumference of the circle is 105.

Learn more about circumference here;

brainly.com/question/12512221

#SPJ2

in the equation, y = 0.007x, how many inches of rain falls in 6 minutes?

Answers

Answer:

X represents the value you can multiply with the slope to get the answer.

y = 0.007x

  = 0.007(6)

  = 0.042

Therefore, 0.042 inches of rain falls in 6 minutes.

What is the slope of a line perpendicular to 3Y + 6X = 12?
Select one:
a. -2
b. 2
c. 1/2
d. -1/2
e. 1/6

Answers

The answer is c. 1/2
C 1/2 hope this helps!!!!!!

Natalie and Phil ran for 6th grade class president. The ratio of votes for Natalie to votes for Phil was 4:3.

Which statement is true?


For every vote Phil received, Natalie received 4 votes.

For every vote Phil received, Natalie received 4 votes.

For every vote Phil received, Natalie received 3 votes.

For every vote Phil received, Natalie received 3 votes.

For every 4 votes Natalie received, Phil received 7 votes.

For every 4 votes Natalie received, Phil received 7 votes.

For every 4 votes Natalie received, Phil received 3 votes.

For every 4 votes Natalie received, Phil received 3 votes.

Answers

Answer:

tyuklgfdzrxtiyku,j mncihknbjhtu

Step-by-step explanation:

find 11 expressions using only fives, that equal either 0,1,2,3,4,5,6,7,8,9,10

Answers

Answer and Step-by-step explanation:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

5 + 5

5

5/5

5/5 + 5

5/5 + 5/5

5/5 + 5/5 + 5/5

5/5 + 5/5 + 5/5 + 5/5

5 + 5/5 + 5/5

5 + 5/5 + 5/5 + 5/5

5 + 5/5 + 5/5 + 5/5 + 5/5

5 - 5

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant)

factor 7x+35 PLEASE HELP

Answers

Answer:

7(x+5)

Step-by-step explanation:

The greatest common factor is 7

7*x + 7*5

Factor out the 7

7(x+5)

7(x+35) is the answer I think

Karen picked apples at the Carter Apple Orchard this weekend. She made a graph to show how many apples she picked.

Karen ate 5 Fiji apples and dropped 4 Gala apples.
After Karen ate and dropped those apples, which two types have the same number of apples?
Choose 2 answers:
A) pink lady
B) rome
C) fiji
D) gala

Answers

Answer:

D

Step-by-step explanation:

I hope this help

Which are are solutions for x^2 + 5x – 1 > 6

Answers

Answer:

it might be b and d

Step-by-step explanation:

23 more than twice a number

Answers

Answer:

2x +23

Step-by-step explanation:

Let the required number be x

Twice of number = 2x

23 more than twice a number = 2x + 23

Answer:

2x + 23

Step-by-step explanation:

Let x be the number

Twice a number = 2x23 more than twice a number = 2x + 23

I hope this helps!

Elliot borrows $900 to buy an appliance at a yearly simple interest rate. He takes 3 years to pay off the loan and interest. He pays $135 in interest. What is the interest rate?

Answers

He pays $135 for 3 years. So that’s $45/year. Considering 900 is your 100%, how many percents are represented by $45 in 900?

1)
You can see that 900 = 9x100.
So you can divide 900 by 9 to get 100.
That means you can also divide 45 by 9 (it’s proportional)
You have 45 for 900, you divide by 9 so you get 5 for 100 -> 5%

Or 2)
(Photo)
It’s a cross-multiplication :
(45 x 100)/900 = 5%
So the interest rate is 5%.


(Sorry if it’s confusing, English isn’t my first language..)

Which expression shows the product of 1.5×106 and 12,000?
note the the six is the power for 10

Answers

Answer:

Step-by-step explanation:

3/)038\=8262

Carl's grandfather is exactly 5 times older than Carl.
Which three statements must be true?​

Answers

Answer:

g = 5c

5*c = g

g/5 = c

Step-by-step explanation:

g = grandfather

c = carl

Answer:

The age of Carl's grandfather is a composite number.

Carl's age is a factor of the age of his grandfather.

The number 5 is a factor of the age of Carl's grandfather.

WILL MARK brainliset answer if gotten right

Answers

Answer:

Line segment PN

Step-by-step explanation:

Can someone help explain how I get the answer for this? S=R-rR solve for R

Answers

Answer:

s/(1-r)=R

Step-by-step explanation:

S=R-rR

S=R(1-r)

s/(1-r)=R

Drag the two ordered pairs that are 5.5 units apart.
(-3, -3.5)
(-1.5, 2)
(-1.5, 2.5)
(5, 1.5) (5, -3.5)
(-1.5, -3.5)

Answers

Answer: (-1.5, 2) and (-1.5, -3.5)

Step-by-step explanation:

The distance between two points (a, b) and (c, d) is:

D = √( (a - c)^2 + (b - d)^2)

A simpler case, is when we have two points where one of the components is the same for both of them, like:

(a, b) and (a, c)

Then the distance will be:

D = √( (a - a)^2 + (b - c)^2 ) = Ib - cI

Then we need to look for points that have an equal component, and the difference between the other two components is exactly 5.5

The solution will be:

(-1.5, 2) and (-1.5, -3.5)

Where the x-component is the same in both of them, then the distance will be:

D = I2 - (-3.5)I  = I2 + 3.5I = 5.5

What is the largest output achieved by the function? At what x-value is it hit.

Answers

Answer:  

f(1) = 4  

Step-by-step explanation:

Largest output is 4, when x=1.

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