If x equals 3 calculate the value of 2x squared plus x

Answers

Answer 1

2 × 3 = 6
6 squared = 36
36 + 3 = 39
Hope this helps!

Answer 2

2 x 3 = 6
6² = 36
36 + 3 = 39

hope this helps you

Related Questions

An isosceles trapezoid has shorter base of measure a, longer base of measure c, and congruent legs of measure b. The perimeter of the trapezoid is 58 inches. The average of the bases is 19 inches and the longer base is twice the leg plus 7. Find the lengths of the sides.

Answers

Perimeter of the trapezoid = a + c + 2b
58 = a + c + 2b

Average of bases = (a + c)/2
19 = (a + c)/2
a + c = 38
Substituting (a + c) into the first equation:

58 = 38 + 2b
b = 10 in

We also know that:
c = 2b + 7
c = 2(10) + 7
c = 27 in

a + 27 = 38
a = 11 in

a = 11 in; b = 10 in; c = 27 in

23 + 45 - 48 + 34 * x = 292

What does x equal

Answers

Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 8

Simplifying
23 + 45 + -48 + 34x = 292

Combine like terms: 23 + 45 = 68
68 + -48 + 34x = 292

Combine like terms: 68 + -48 = 20
20 + 34x = 292

Solving
20 + 34x = 292

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right

Add '-20' to each side of the equation.
20 + -20 + 34x = 292 + -20

Combine like terms: 20 + -20 = 0
0 + 34x = 292 + -20
34x = 292 + -20

Combine like terms:
292 + -20 = 272 34x = 272

Divide each side by '34'.
x = 8

Simplifying x = 8

Hope it helped : )

Jina's earnings vary directly with the number of hours she works. Suppose that she worked 8 hours yesterday and earned $88 . How much will she earn today if she works 11 hours?

Answers

8 hours $88.
1 hours $11.
11 hours $121.

A graduate student is studying bacteria known to have a growth rate of 15% per day. If the population of a bacterial sample is currently 29,000 bacteria, then how many bacteria will there be in 3 days?

Answers

Final answer:

The population of bacteria in 3 days will be approximately 44,503 bacteria.

Explanation:

To calculate the future population of bacteria, we can use the formula P = P0(1+r)t, where P0 is the initial population, r is the growth rate, and t is the time in days. In this case, P0 is 29,000 bacteria, r is 15% or 0.15, and t is 3 days. Plugging in these values, we get:

P = 29000(1+0.15)3

Calculating this expression, we find that P is approximately 44,503 bacteria

Final answer:

The population of bacteria will be approximately 44,076 in 3 days, given an initial population of 29,000 and a growth rate of 15% per day.

Explanation:

To calculate the population of bacteria in 3 days, we need to use the formula:

P = P0 * (1 + r)^t

Where P is the final population, P0 is the initial population, r is the growth rate per day (expressed as a decimal), and t is the time in days.

In this case, the initial population is 29,000 and the growth rate is 15% per day (0.15). Plugging these values into the formula, we get:

P = 29,000 * (1 + 0.15)³

Simplifying the equation gives:

P = 29,000 * 1.15³

P = 29,000 * 1.520875

P ≈ 44,076

Therefore, there will be approximately 44,076 bacteria in 3 days.

A customer is withdrawing $890 and wants as many $50 bills as possible. How many $50 bills should the Teller give her?

Answers

HE WILL BE NEEDING 18 BILLS

890/50=17.8..How many $50 bills should the Teller give her? 17

2x + 7y + 3x − 4y simplify

Answers

5x+11y would be a solution

2x+3x+7y-4y
X(2+3)+y(7-4)
X.5+y.3
5x+3y

help me please tryna finish

Answers

Well the X intercept is a coordinate point where there is a unique value to X coordinate, other than 0. Since the graph touches the X axis to the left of the graph, the X intercept would be negative. More specifically it would be (-3,0).

Find the slope the line that contains (2,4) and (4,4)

Answers

4+4/4+2 =4/3 ...The answer is this

Slope between points (x,y) and (a,b) is given by( b-y) over (a-x).. Thus4-4 over 4-2 equals 0 is your answer... The line joining these two above points is parallel to X axis or perpendicular to y axis .on y axis this line intersects at (0,4)...

Which inequality models this problem?

The length of a rectangle is five times its width. If the perimeter is at most 96 centimeters, what is the greatest possible value for the width?

A.

2w + 2 • (5w) ≤ 96

B.

2w + 2 • (5w) ≥ 96

C.

2w + 2 • (5w) < 96

D.

2w + 2 • (5w) > 96

Answers

the true answer is
A.

2w + 2 • (5w) ≤ 96
because
the value of 2w + 2L is
is at most 96 centimeters, it means 2w + 2L ≤ 96

Answer:the answer is A

Step-by-step explanation:took the test and got it right

write an equation in point-slope form for the line through the given point with the given slope.
(8,3);m=6

a. y+3=6(x-8)
b. y-3=6(x-8)
c. y-3=6(x+8)
d. y+3=6(x+8)

Answers

Point-slope form:
[tex]y - y_0 = m(x-x_0)[/tex]
x0 = 8 , y0 = 3
[tex]y - 3 = 6(x-8)[/tex]

Find the slope of the line tangent to the
graph of ln(xy)-2x=0 when x= -1

answer choices..
1. slope = 3/2e^-2
2. slope= 3/2e^2
3. slope= 3e^-2
4. slope= -3e^2
5. slope= -3/2e^2
6. slope= -3e^-2

Answers

ln(xy) - 2x =0

slope of the tangent line = derivative of the function

[ln(xy)]' = [2x]'

[1/(xy)] [y + xy'] = 2

y + xy' = 2(xy)

xy' = 2xy - y =y(2x-1)

y' = y(2x-1)/x

Now use x = -1 to find y and after to find y'

ln(xy) = 2x
x=-1
ln(-y) =-2

-y = e^-2

y = - e^-2

y' = [-e^-2][2(-1)-1]/(-1) = [e^-2](-2-1)= [e^-2](-3) = - 3e^-2

Answer: option 6. from the list

Answer:n

Step-by-step explanation:

MRS. FARLY WANTS TO BUY A PENCIL FOR EACH OF HER 23 STUDENTS. PENCILS COME IN BOXES OF 5 PENCILS EACH. WHAT IS THE LEAST NUMBER OF BOXES SHE MUST BUY TO HAVE A PENCIL FOR EACH STUDENT. A. 2, B3, C4, OR D 5

Answers

She needs D.5 because if she wants all the students in her class to have at least 1, she needs to buy 5 to make sure all the students gets a pencil. 5 x 5 = 25.

What are the coordinates of the focus of the conic section shown below?

y^2-4x+4y-4=0

...?

Answers

the answer is
y^2-4x+4y-4=y^2+4y-4x-4=(y+2)²-4x - 8= 0
it is the same of x + 2 = (1/4 ) (y+2)²

the main formula is x-h= a (y-k)² so h=-2, k= - 2 and a=1/4

Answer:

(-1,-2) is the correct answer

Step-by-step explanation:

Mr. jones has agreed to borrow $3500 for one year st 10% interest. what is the total amount he will pay back to the bank?

Answers

$ 3500 × 10 /100 × 1 = $ 3850

The total amount Mr. Jones will pay back after borrowing $3500 for a year at 10% interest rate is $3850, simply add the interest to the principal amount borrowed.

Mr. Jones borrowed $3500 for one year at 10% interest rate. The total amount he will pay back to the bank can be calculated as follows:

Interest = Principal x Rate = $3500 x 0.10 = $350

Total amount to be paid back = Principal + Interest = $3500 + $350 = $3850

A sneaker store salesman had $4,125 in total monthly sales last month. he made $165 in commission from those sales. what is the salesman's commission as a percent of his total monthly sales?

Answers

He made [tex]\frac{165}{4125}[/tex] as a commission. To turn that into a percentage, you need to make the bottom become 100. Multiply the top and bottom by [tex]\frac{100}{4125}[/tex] to get the proper fraction. The fraction now is [tex]\frac{\frac{16500}{4125}}{100}[/tex] This simplifies to [tex]\frac{4}{100}[/tex]. Now all you need to do is take the top of that fraction to get the percentage, which is 4%.

4%

The discriminant of a quadratic equation is negative. One solution is 3+4i . What is the other solution?
A.4-3i
B.3-4i
C.4+3i
D.-3+4i

Answers

I hope this helps you

3-4i

The way you stated the problem, there is an infinity of possibilities for the other solution.

► For instance, the quadratic equation:
   x² – (6 + 4i)x + (9 + 12i) = 0
has for discriminant:
   Δ = (6 + 4i)² – 4(9 + 12i) = 36 – 16 + 48i – 36 – 48i = -16
which is indeed negative.
Its solutions will then be:
   x₁ = [(6 + 4i) + 4i]/2 = 3 + 4i
   x₂ = [(6 + 4i) – 4i]/2 = 3
And the other solution here is 3.

► If you are not convinced, the quadratic equation:
   x² – (6 + 5i)x + (5 + 15i) = 0
has for discriminant:
   Δ = (6 + 5i)² – 4(5 + 15i) = 36 – 25 + 60i – 20 – 60i = -9
which is indeed negative.
Its solutions will then be:
   x₁ = [(6 + 5i) + 3i]/2 = 3 + 4i
   x₂ = [(6 + 5i) – 3i]/2 = 3 + i
And the other solution here is 3+i.

► In fact, every quadratic equation of the form:
   x² – [6 + (4 + α)i]x + (3 + 4i)(3 + αi) = 0
where α is any real, has for discriminant:
   Δ = [6 + (4 + α)i]² – 4(3 + 4i)(3 + αi)
      = 36 – (4 + α)² + 12(4 + α)i – 36 + 16α – 12(4 + α)i
      = 16α – (4 + α)²
      = 16α – 16 – 8α – α²
      = -16 + 8α – α²
      = -(α – 4)²
WILL be negative.
Their solutions will then be:
   x₁ = [ [6 + (4 + α)i] – (α – 4)i ]/2 = 3 + 4i
   x₂ = [ [6 + (4 + α)i] + (α – 4)i ]/2 = 3 + αi
And the other solution will then be is 3+αi.

Since α can take any real value, you'll obtain an infinity of solutions of the form 3+αi.

► So conclusively:
If the discriminant of a quadratic is negative AND one of the solutions is 3+4i, the only thing we can say about the other solution is that its real part must be 3.

2x -3 =6

Value of x

Help_

Answers

2x - 3 = 6
2x = 6 + 3
2x = 9
x = 9/2
x = 4.5

The value of x is 4.5

Add 3 to both sides

[tex]2x=6+3 [/tex]

Simplify 6+3 to 9

[tex]2x=9[/tex]

Divide both sides by 2

[tex]x=9/2[/tex]

How many times does 6 go into 87?

Answers

87 ÷ 6
8 ÷ 6 = 1 (remainder 2)
27 ÷ 6 = 4 (remainder 3)
30 ÷ 6 = 5
So it goes in 14 times, but exactly 14.5 times if you want a decimal.

The area of a trapezoid is given by the formula A =1/2 (b 1 + b 2)h, where base b 1 is parallel to base b 2 and h is the height. Solve the formula for b 2. Show your work.

Answers

The answer is b2 = 2A/h - b1

A = 1/2(b1 + b2)h

Multiply both sides by 2:
2 * A = 2 * 1/2(b1 + b2)h
2A = (b1 + b2)h

Divide both sides by h:
2A/h = (b1 + b2)h/h
2A/h = b1 + b2

Subtract b1 from both sides:
2A/h - b1 = b1 + b2 - b1
2A/h - b1 = b2

Multiply (2 – 7i)(9 + 5i)

Answers

Final answer:

To multiply complex numbers, use the distributive property and combine like terms.

Explanation:

To multiply (2 - 7i)(9 + 5i), you can use the distributive property. Multiply the first terms, then multiply the outer terms, the inner terms, and finally the last terms. Then combine the like terms and simplify.

(2 - 7i)(9 + 5i) = 2 * 9 + 2 * 5i - 7i * 9 - 7i * 5i

= 18 + 10i - 63i - 35i²

= 18 + 10i - 63i + 35

= 53 - 53i

So, (2 - 7i)(9 + 5i) = 53 - 53i

Tess has 2 1/2 cups of fruit. how many 3/4 cup servings can she make?

Answers

only 3 full servings.

describe how to find the number of $4 train tickets you can buy with $32.

Answers

you can divide 32 by 4 and you will get 8

32 divided by 4 equals 8
Answer is 8 train tickets

A student studying for a vocabulary test knows the meanings of 16 words from a list of 26 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.)

Answers

To get the probability that at least 8 of the words on the test are words that students know we need to do the following calculations.

=[C(16,8)*C(10,2) + C(16,9)*C(10,1) + C(16,10)*C(10,0)] / C(26,10)

=0.132

Final answer:

To find the probability that at least 8 of the words on a 10-word test are known by a student, calculate the probabilities for exactly 8, 9, and 10 known words and sum them. Use combinations to determine the probabilities and round the final answer to three decimal places.

Explanation:

The student knows 16 words out of 26, and the test contains 10 words. To find the probability that at least 8 out of 10 words on the test are known to the student, we need to calculate the probability for exactly 8, 9, and 10 known words, using combinations, and then sum these probabilities.

Let's denote K as knowing the word and N as not knowing the word. The total number of ways to choose 10 words out of 26 is given by 26 choose 10, denoted as C(26,10).

The probability of getting exactly 8 known words is given by (C(16,8) * C(10,2)) / C(26,10).

The probability of getting exactly 9 known words is (C(16,9) * C(10,1)) / C(26,10).

The probability of getting all 10 known words is (C(16,10) * C(10,0)) / C(26,10).

We add these probabilities together to get the total probability that the student knows at least 8 out of 10 words:

P(8 known words) = (C(16,8) * C(10,2)) / C(26,10)
P(9 known words) = (C(16,9) * C(10,1)) / C(26,10)
P(10 known words) = (C(16,10) * C(10,0)) / C(26,10)

We sum these individual probabilities to obtain the final answer. The result should be rounded to three decimal places as per the instructions given in the question.

Learn more about Probability here:

https://brainly.com/question/32117953

#SPJ2

If 4(x-2/3)=-18, what is the value of 2x?

Answers

4(x-2/3) = -18
4x - 8/3 = -18
4x = -54/3 + 8/3
4x = -46/3
x = -46/3 * 1/4
x = -46/12
x = -23/2

2x = -23/2 * 2
2x = -46/2
2x = -23

There are ten shirts in your closet, four blue, three green, and three red. You randomly select a different shirt each day. You wear a blue shirt Monday, Tuesday, and Wednesday.

Answers

It's a probability problem to find the odds of picking a green or red shirt out of the 10 shirts on Thursday, Friday and Saturday since you have randomly already know you have picked a blue shirt on the other days. Not sure if you have this as a multiple question problem as you didn't list any possible answers (A. 7/20, B. 5/47, C. 2/5, D. 4/125) to the question. A, B, C, D being like 7 chances out of 20, 5 chances out 47, 2 chances out of chances 5 or 4 chances out of 125 (example answers only).

Probability = Number favorable outcomes / total number of outcomes

If you're asking for the probability of drawing said shirt colors on said days:
Assuming there's no replacement (because clothes), the answer would be:
(2/5)•(1/3)•(1/4), which equals 2/60, or 1/30.
The reason:
On Monday, there are 10 shirts, 4 of them blue. So, your chances are 4 out of 10, or 4/10, which reduces to 2/5.
On Tuesday, there are 9 shirts left, 3 of them blue. So, 3/9, or 1/3.
On Wednesday, there are 8 shirts, 2 of them blue. So, 2/8, or 1/4.
You multiply all the fractions together (which is why simplifying helps A TON)
Hope this helps! And sorry about not answering sooner!

Will upvote!

I just need two or three points on the graph

Graph −7y+8=21x−6

Answers

-7y+8=21x-6 -7y=21x-14 y=-3x+2 y=-3(0)+2=2 (0,2) y=-3(1)+2=-1 (1,-1) y=-3(2)+2=-4 (2,-4)

An angle measures 41 degrees. What is the measure of its complement?

Answers

This angle is called and acute angle.
Hope This Helps!!
:)

49 is the answerfawertgsdrgeatat4w3

On a certain day, the company took 88 people on whale watching trips. There were 44 children aged twelve and under, of which some children were under three years. If x represents the number of children under three years, which equation can be used to find the value of x, where C represents the total amount of money collected from tickets that day?

(44 + x)35 + (88 – (44 + x)) ∙ 46 = C

(88 - x)35 + (88 – 44) ∙ 46 = C

(44 – x)35 + (88 – 44) ∙ 46 = C

(88 + x)35 + (88 – (44 + x)) ∙ 46 = C
Please explain why? ...?

Answers

Answer with explanation:

Total number of People who were on Whale Watching Trip =88 People

Number of People (Children ) who was 12 and under ,and some children who were under three years old=44

Number of three year and less old Children = x

Amount of Money charged for three year and less= $ 0

Amount Charged for Children who were above 12 years and less than or equal to 3 years=(44-x) = $ 35

Total Number of Adults =88-44

Amount charged for each Adult = $46

Total amount of money collected from tickets on that day=$ C

Writing the Above Statements in terms of Equation

⇒ (44 -x)×35+(88-44)×46=C

Option C

The equation to find the number of children under three years of age during a whale watching trip is (44 - x)35 + (44)46 = C, accounting for different ticket costs for children and adults.

The correct equation to find the value of x, which represents the number of children under three years, is (44 - x)35 + (88 - 44) \46 = C. This equation takes into account the cost of tickets for the children under three and those above three but under thirteen, as well as adults and older children, given that the cost of tickets might be different.

To explain, the total number of children is 44, and if we subtract the number of children under three (x), we have the number of children between the ages of four and twelve left.

We multiply this number by the ticket price for children in this age group, which is $35. The remaining passengers are adults, totaling 88 passengers minus the 44 children, which gives us the number of adult tickets sold. This number is then multiplied by the adult ticket price, which is $46. Finally, the sum of these two products gives us the total amount of money collected, C.

How many faces does a rectangle have?

Answers

4 because it has four sides

Would you many rectangular prism?
If so it would be 6 just like a cube

Jill Barkely obtained a 25-year, $460,000 mortgage loan from University Savings and Loan Association with 6% interest. The monthly payment is $2,962.40. For the first payment, find the interest to the nearest cent.

Answers

Have you considered calculating it directly? $2,962.40*(0.06/12)
If you do that then your answer would be 14.81...
Hope this helps... :)

Other Questions

Which statement best defines a relevant question?A relevant question relates to the topic at hand.A relevant question can be studied and investigated.A relevant question is interesting, unusual, or unique.A relevant question is connected to a particular goal. The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 26 cm. What are the dimensions of the rectangle?A.length = 5 cm; width = 5 cmB.length = 7 cm; width = 6 cmC.length = 6 cm; width = 7 cmD.length = 4 cm; width = 9 cm ...? A form of economy that promotes free trade, reduced government intervention, and entrepreneurism Which system recieves and sends electrical signals through out the body? a. muscular c. nervous b. skeletal d. cardiac Which of the following root words means stomach? A. Chiro- B. Gastro- C. Cord- D. Dom- HEY GUYS WHAT DOES THIS QUESTION MEAN???"How does a conflict occur between Aphrodite and Persephone?"I'm not looking for the answer I just need to know what the question is asking and what does it means. To move up one paragraph, press the ____ key(s). f1 alt up arrow up arrow ctrl up arrow Test each set of equivalent ratios to find which set of values describes the proportional relationship of the two quantities.40.5 ounces of nuts to 48.6 ounces of raisinsA)(5, 7)(60, 84)(47, 65.8)B)(36, 48.6)(2, 2.7)(12, 16.2)C)(3, 3.9)(65, 84.5)(24, 31.2)D)(11, 13.2)(99, 118.8)(20, 24) A third grade class was given a multiplication quiz. The quiz had 10 problems. Any correctly answered 6 problems, Bobby answered 7 problems correctly, Tom answered 9 problems correctly, and Sue only answered 2 problems correctly.A. What fraction of the problems did each student get correct on the quiz?B. ORDER the fraction of problems each student got correct from greatest to least. Eating disorders can be caused by depression, peer and family pressure, substance abuse, or a family history of weight problems. Which eating disorder is characterized by the following: an irrational fear of becoming overweight and engaging in extreme dieting, even starvation, to lose weight?Select one of the options below as your answer: A. bulimia B. binge eating C. anorexia nervosa What is 15.6 over 100 in simplest form? If a Canadian dollar is worth $0.82 in American money, how much is an American dollar in Canadian money? if a tip of 15% is added to the food bill, what is the total on the food bill of $12.95 why was joan of arc important in the hundred years war? Research indicates that using electronic devices before bed may make it difficult for people to fall asleep. The light appears to interfere with the bodys ability to create this hormone, which is responsible for sleep and wake cycles. Within the hierarchy of the federal bureaucracy , the cabinet is? What are the x and yintercepts of the graph of y = 2x^2 8x 10? At least how many African nations gained their independence after World War II? 35 42 48 50 What is the sale price of $59 with a 10% discount?? If you drop a tennis ball from the top of a ladder, at what rate will it accelerate Steam Workshop Downloader