y = 12•3x for x = -2

Answers

Answer 1

Answer:

y=12×3(-2)

y=-72

Step-by-step explanation:

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Related Questions

Heart of algebra

If 5=a^x, then 5/a=?

Answers

Step-by-step explanation:

[tex]5 = {a}^{x} [/tex]

[tex] \frac{5}{a} = \frac{a {}^{x} }{a} [/tex]

[tex] \frac{5}{a} = {a}^{x - 1} [/tex]

The length of a rectangle is 3m less than double the width, and the area of the rectangle is 65m^2 .
What is the length & width of the rectangle?

Answers

By solving a quadratic equation, we will see that the length is 10m and the width is 6.5m

How to find the length and width of the rectangle?

For a rectangle of width W and length L, the area is:

A = W*L

In this case, we know that the area is 65m² and that the length is 3 meters less than 2 times the width, so:

L = 2*W - 3m

Then we can write:

65m² = (2*W - 3m)*W = 2*W² - 3m*W

This is a quadratic equation:

2*W² - 3m*W - 65m² = 0.

The solutions are given by the Bhaskara's formula:

[tex]W = \frac{3 \pm \sqrt{(-3)^2 - 4*2*(-65)} }{2*2} \\\\W = \frac{3 \pm 23 }{4}[/tex]

We only care for the positive solution, which is:

W = (3m + 23m)/4 = 26m/4 = 6.5m

Then the length is:

L = 2*6.5m - 3m = 10m

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Find the value of x.

X

4

[?]
X =
Enter the number that belongs in
the green box.

Answers

Answer:

√33

Step-by-step explanation:

it is a right triangle and we use Pythagoras

x² = 7² - 4²

x² = 49 - 16

x² = 33

x = √33

Which equation has the same solution as x^2+8x+15 = -4x
2
+8x+15=−4?

Answers

The equation that has the same solution as x² + 8x + 15 = -4x is x = -6± √21.

How do you solve the above equation?

Step 1 - Move terms to the left

x² + 8x + 15 = -4x

x² + 8x + 15-(-4x) = 0

Step 2  - Combine the terms

x² + 8x + 15 + 4x = 0

x² + 12x + 15 = 0

Step 3 - Apply the quadratic formula

x = (-b ± √(b² - 4ac) )/ 2a

Recall that form our equation:

a = 1

b = 12

c = 15

Thus,  x = (-12 √(12² - 4 * 1 *15) )/2 *1

x = -6 ± √21


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You have decided to purchase a new computer with the Amtel processor. The new processor is the latest release of the hyperduoraging core threading processors. You local computer store has a computer with this processor and is offering a 36 month installment plan to finance the computer. The store requires no down payment. The salesperson tells you that you can finance the computer with 36 monthly payments of $98.20. Determine the total amount paid.

a.
$3,535.20
c.
$3,256.01
b.
$3,426.31
d.
$3,089.57

Answers

3,535.20 is the answer

Answer:

A. $3,535.20.

To find the total amount paid, you can simply multiply the monthly payment by the number of payments:

$98.20 x 36 = $3,535.20

Question 2 of 8
Which choice is equivalent to the fraction below?
17/2
O A. 7.12
OB. 7-12
O C. 12 ÷7
O D. 7 ÷ 12

Answers

Answer: [tex]17 \div 2[/tex]

Step-by-step explanation:

[tex]a/b[/tex] is the same thing as [tex]a \div b[/tex]

Jill, Ally, and Maria ran the 50-yard dash. Jill ran the race in 6.87 seconds. Ally ran the race in 6.82 seconds. Maria ran the race in 6.93. Who ran the race the fastest? Explain how you can use a place-value chart to find the answer.

Answers

Answer:

Ally

Step-by-step explanation:

The fastest time of the race will be the one lesser in value.

=============================================================

Comparing the tenths place :

⇒ Jill = 8 in the tenths place

⇒ Ally = 8 in the tenths place

⇒ Maria = 9 in the tenths place

Since Maria's time's tenth place value is greater than that of the other two, she had the slowest time.

===========================================================

Comparing the hundredths place (for Jill and Ally) :

⇒ Jill = 7 in the hundredths place

⇒ Ally = 2 in the hundredths place

Since Ally has the lower hundredths' place value, she has the fastest time.

Describe the slope of this line of best fit

Answers

Answer:

there is no line

Please Simplify
3(4x2+2x)+2(5x2+x)

Answers

what please explain in the comments so i can help you :)
2x(11x + 4) is the simplified equation

The means and mean absolute deviations of the individual times of members on two 4 times 400 meter relay track teams are shown in the table below.

Means and Mean Absolute Deviations of
Individual Times of Members of 4 times 400 meter Relay Track Teams

Team A
Team B
Mean
59.32 s
59.1 s
Mean Absolute Deviation

1.5 s

2.4 s

What is the ratio of the difference in the means of the two teams to the mean absolute deviation of Team B?
0.09
0.15
0.25
0.65

Answers

The correct answer is option C which is the ratio of the difference in the means of the two teams to the mean absolute deviation of Team B will be 0.25.

What is mean?

Mean is defined as the ratio of the sum of the number of the data sets to the total number of the data.

The difference between the mean times is about 16 times the mean absolute deviation of the data set.

59.32 - 59.1 = 0.22

2.4 - 1.5 = 0.9

0.22 / 0.9 = 0.25

Therefore the correct answer is option C which is the ratio of the difference in the means of the two teams to the mean absolute deviation of Team B will be 0.25.

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Answer:

c

Step-by-step explanation:

The seventh-grade students at Charleston Middle School are choosing one girl and one boy for student council. Their choices for girls are Michaela (M), Candice (C), and Raven (R), and for boys, Neil (N), Barney (B), and Ted (T). The sample space for the combined selection is represented in the table. Complete the table and the sentence beneath it.


Boys
Neil Barney Ted
Girls Michaela N-M
T-M
Candice N-C
T-C
Raven N-R

T-R

Answers

The new sample size based on the information will be B-M, B-C, B-R, 8.

What is a sample size?

Sample size is the number of participants or observations that are included in a study. This is usually represented by n.

When the boys and girls are to be chosen, the new sample size based on the information will be B-M, B-C, B-R, 8.

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Answer:

Step-by-step explanation:

B-M, B-C, B-R, 8.

The milligrams of aspirin in a person's body is given by the equation a = 500*(3/4^t), where t is the number of hours since the patient took the medicine.
In the equation, what does 500 tell us about the situation?


SOMEONE ANSWER PLS!!

Answers

500 represents the initial amount of medication, since when t=0, a=500.


x+2y+3z = 12
x-3y + 4z=27
-x+y+2z=7

Show work

Answers

Answer:

x=1

y=−2

z=5

(heres how i got the answer)

Step-by-step explanation:

x+2y+3z=12

x−3y+4z=27

−x+y+2z=7

Solve x+2y+3z=12 for x.

x=−2y−3z+12

Substitute −2y−3z+12 for x in the second and third equation.

−2y−3z+12−3y+4z=27

−(−2y−3z+12)+y+2z=7

Solve equations for y and z respectively.

y=−3+

5

1

z

z=

5

19

5

3

y

Substitute −3+

5

1

z for y in the equation z=

5

19

5

3

y.

z=

5

19

5

3

(−3+

5

1

z)

Solve z=

5

19

5

3

(−3+

5

1

z) for z.

z=5

Substitute 5 for z in the equation y=−3+

5

1

z.

y=−3+

5

1

×5

Calculate y from y=−3+

5

1

×5.

y=−2

Substitute −2 for y and 5 for z in the equation x=−2y−3z+12.

x=−2(−2)−3×5+12

Calculate x from x=−2(−2)−3×5+12.

x=1

The system is now solved.

x=1

y=−2

z=5

48 / 48 hrs Completed, Read watch every Single thing and answer it in comments.

48 / 48 = ?

Answers

Answer:

1

Step-by-step explanation:

48 / 48 = 1

Using the change-of-base formula, which of the following is equivalent to the
logarithmic expression below?
log5 13

Answers

Answer:

See below

Step-by-step explanation:

There could be INFINITE possibilities....(you didn't list any choices to choose from)

 here is one to change to base 10

     log5 ( 13)   =   log10 ( 13) / log10 ( 5)  

Name the polygon shape in the picture below.

Answers

Answer:

There are eight sides so it's an octagon

Step-by-step explanation:

The median height of the players on my basketball team is 6 feet, A inches. What is the shortest that the tallest player on the team could possibly be?

Answers

The median height is the middle height when the players are put in order of height.
The heights of all the players above the median could also be 6 feet A inches.
So the shortest height of the tallest person is 6 feet A inches.

For a simple example, what is the median value of 3, 4, 5, 6, 6, 6, 6. The answer is 6, the middle value.

el cociente de un numero y 6

Answers

Answer:

No Hablo Espaniol

Step-by-step explanation:

Felix chose 3 integers between -10 and 10 at random. He chose the three integers listed below.

-1, 8, 4

Which integer does Felix need to choose next so that the product of all
four numbers chosen is 64?

[A] 2
[B] -2
[C] -1
[D] 4

Answers

Answer: -2

Step-by-step explanation: The answer is -2 because -1 x 8 = -8, and -8 x 4 = -32. Because multiplying two negatives cancels out and becomes positive, we can apply this same principle and figure out that -32 x -2 would give us positive 64. Hope this helps!

7. What is the value of x?

Answers

Answer:

29


the triangle on the right has 2 sides the same so the lower two corners have the same angle which would be (180-64)/2 = 58 degrees


the lower right angle of the triangle on the left Sadie would be 180-58 = 122.

Since 2 sides of the triangle on the left are the same the other two angles would be equal to each other.

x = (180-122)/2 = 29 degrees

Answer:

x = 29°

Explanation:

The triangle on right side is an isosceles triangle with two similar angles.

Let that angle be z:

⇒ z + z + 64° = 180°

⇒ 2z = 180° - 64°

⇒ 2z = 116°

⇒ z = 58°

After finding z, find the opposite angle:

⇒ 180° - 58° = 122°

Find the value of x:

⇒ x + x + 122° = 180°

⇒ 2x = 180° - 122°

⇒ 2x = 58°

⇒ x = 29°

what is the answer to 7 times 6

Answers

7 times 6 is 42
Hope that helps!!

Answer:

[tex]7 \times 6 = 42[/tex]

Practise the Skill 5
a) Josie is going to a conference in 48 hours
How many days is this?

Answers

There are two days in fourty-eight hours

Solve Y/-6 + 5 = 9

It’s Algebra 1

Answers

Answer:

Y = - 24

Step-by-step explanation:

Y/-6 +5=9 /*6 (Multiply the whole equation by the number 6 to eliminate the fraction. That is, you multiply each member of the equation by 6 because 6 is in the denominator of the fraction.
[tex]\frac{Y}{-6} *6=-Y[/tex],     [tex]5*6=30[/tex],    [tex]9*6=54[/tex]

-Y + 30 = 54
-Y = 54-30
-Y=24 /*(-1)
Y= -24

A wholesaler gets 1.5% commision on the total annual sales and a bonus of 2% on the sales above Rs. 20,00,000. If, in a particular yearm the wholesaler recieved as bonus and commision the sum of Rs. 65000 in all, find the total sales of the year.

Answers

The total sales of the year after is Rs. 1857143

How to find the total sales after commission?

He gets 1.5% commission on the total annual sales and a bonus of 2% on the sales above Rs. 20,00,000.

Therefore, since he received a bonus, the sale is over Rs. 20,000.

Hence,

let

x = total sales

Therefore,

1.5% of x + 2% of x   = 65000

1.5 / 100 × x + 2 / 100 × x = 65000

0.015x +0.02x = 65000

0.035x = 65000

x = 65000 / 0.035

x = 1857142.85714

Therefore,

total sales = Rs. 1857143

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Julie puts 67 blue buttons in a bag. This number is 13 more than half the number of red buttons. The number of yellow buttons is one quarter the number of red buttons. How many yellow buttons are there in the tin?

Answers

Answer:

[tex]13 \times 1 \div 67 [/tex]

Which of the following numbers is not an integer? A -32 B 80 C 5.81 D 0 O

Answers

Answer: C.5.18 because you cant have a decimal as an integer

Step-by-step explanation: brainliest???

Solve for the variable: 4+3(x+22)=5x-10

Answers

When we solve the equation, we will get the real answer x=40 as a variable.

First Degree Equation

First degree equation is a mathematical sentence, which has values represented by letters.

These letters can indicate a variable or an unknown - which at the end of the equation will be the final value.

— To solve this equation, just: apply the distributive property (multiply the terms that are outside the parentheses, for the terms that are inside the symbol).

— Next, let's add the real numbers together. Next, we'll subtract the like terms before the equality, thus moving the common term after the equality by adding.

— Finally, let's divide the equation, thus obtaining the final result.

4 + 3(x + 22) = 5x - 10

4 + 3x + 66 = 5x - 10

70 + 3x = 5x - 10

3x - 5x = -10 - 70

-2x = -80

x = 80 ÷ 2

x = 40

Therefore, the correct value of X in this equation, will be x = 40.

find the area of the triangle ABC

Answers

Answer:

1/2 x 8 x 6
answer: 24

Step-by-step explanation:

formula of area of triangle= 1/2 x base x height

the distance on a ruler between 8cm and 26cm =

Answers

Answer:

18 cm

Step-by-step explanation:

To find the distance, take the larger number and subtract the smaller number

26 cm - 8 cm

18 cm

an elevator descends into a mine shaft at the rate of 6 m/min. if the descent starts from 10m above the ground level, how long will it take to reach -350m.

Answers

Distance descended is denoted by a negative integer,

Initial height =+10 m

Final Depth =−350 m

Total distance to be descended by the elevator =(−350)−(+10)=−360 m

Given, the time is taken by the elevator to descend −6 m=1 minute

Thus, time taken by the elevator to descend −360 m=
(−6)
(−360)

------- [from the formula : speed=
time
distance

]

Answer =60 minutes
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Read the excerpt from the story Westward Adventures:Chapter 1: All Aboard!(1) Sally gripped her sister's hand as the train filled the small platform with clouds of steam and dust. The whistle was the loudest sound Sally had ever heard, and she wished she could put her hands over her ears. She looked down at her younger sister, Beth. The little girl was trying not to cry. Sally could see her lip quivering and the tears filling her eyes.(2) "It'll be okay," she said, squeezing her hand. "It's going to be a wonderful adventure. Just think about how happy Father will be to see us!"(3) "I don't remember what Father looks like," Beth whispered. "He's been gone a long time."(4) "Come on," Sally said. "Let's find our seats."(5) "All aboard!" shouted the conductor. "Non-stop from Omaha to Sacramento."(6) Sally and Beth settled into the cushioned seats, their suitcases stashed under their chairs. Sally stared out the dusty window at the flat, sunbaked landscape. She wondered how different life would be in California. Their father had left them with their grandparents in Omaha while he traveled to California to seek his fortune in the gold rush. She took his last letter from her pocket and read it for the hundredth time.(7) "My dearest daughters,(8) It's been too long since we've been together. I miss you both so much. I've made my fortune and bought a house for us. I think you will like it. It's painted Beth's favorite color, and you can see the beach from the back windows. I'm sending you train tickets to bring you here.Which of the following details from the story contribute to the development of Beth's character?A: It's painted Beth's favorite color, and you can see the beach from the back windows.B: Sally and Beth settled into the cushioned seats, their suitcases stashed under their chairs.C: Sally could see her lip quivering and the tears filling her eyes.D: She wondered how different life would be in California. Which of the following is an example of relative poverty?A. JoEllen does not earn enough money to buy food for three out of the four weeks in any month.B. Saul prefers to buy clothes when he comes to the United States because they cost less than clothes where he lives in GermanyC. Aleah graduated from college in another country and now realizes that her degree is not recognized throughout the world.D. Kayden can afford to pay for all his essentials every month, but he earns much less than people in another country who have the same type of job that he has. An incomplete cost of goods manufactured schedule is presented below.Complete the cost of goods manufactured schedule for Riverbed Company. 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