what is 2x-15+21= -18​

Answers

Answer 1
Hopes this helps:

Answer: x = -12

How I know I use this app called Cymath.
Answer 2

Answer:

2x - 15 +21 = -18

2x + 6 + 18 = 0

2x + 24 =0 ...it is a linear equation

if u want to solve for X then..

2x = -24

X = - 24

2

X = -12


Related Questions

A three-dimensional figure has a volume of 314 cubic centimeters rounded to the nearest cubic centimeter. Select whether each shape below, with dimensions given in centimeters (cm), matches this three-dimensional figure.


A sphere with a radius of 4.217 cm (true or false)

A sphere with a diameter of 4.217 cm (true or false)

A cone with a radius of 10 cm and a height of 3 cm(true or false)

A cylinder with a radius of 1 cm and a height of 10 cm(true or false)

A cylinder with a radius of 4.47 cm and a height of 5 cm(true or false)

Answers

Answer:

The first one and the third one are true and the rest are false

Step-by-step explanation:

Answer:

first and therd are right

Step-by-step explanation:

A rocket is launched from a tower. The height of the rocket, y in feet, is
related to the time after launch, x in seconds, by the given equation. Using
this equation, find the maximum height reached by the rocket, to the nearest
tenth of a foot.
y = -16x2 + 212x + 139

Answers

Answer:

y = 841.25 feet

Step-by-step explanation:

Given that,

The height of the rocket, y in feet, is  related to the time after launch, x in seconds, by the given equation as follows:

[tex]y = -16x^2 + 212x + 139[/tex] ....(1)

We need to find the maximum height reached by the rocket.

For maximum height, put dy/dx = 0

So,

[tex]\dfrac{d(-16x^2 + 212x + 139)}{dx}=0\\\\-32x+212=0\\\\x=\dfrac{212}{32}\\\\x=6.625\ s[/tex]

Pu x = 6.625 in equation (1).

[tex]y = -16(6.625)^2 + 212(6.625) + 139\\\\y=841.25\ feet[/tex]

So, the maximum height reached by the rocket is equal to 841.25 feet.

Select all relations that represent a function.
A.
{(–4, 3),(–2, 4),(0, 1),(–4, –1)}


B.
{(5, 7),(2, 7),(9, 7),(8, 0)}


C.
{(3, 11),(–4, 5),(3, –1),(0, 0)}


D.
{(8, 0),(1, 4),(9, 4),(7, 8)}


E.
{(–5, 4),(–4, 3),(–3, 2),(–2, 1)}


F.
{(0, 0),(–1, 3),(–1, –1),(0, 5)}

Answers

Answer:

Hi! The answer to your question is B, D, and E

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

Answer:

D

Step-by-step explanation:

because the other answers do not have a function A,B,C,E, and f are not a function because the numbers are repeating in the same axis

9x -5y = 16
-3x + 7y = 16


-4x - 2y = 14
10x - 7y = 25

Answers

ihivigivivvivivuvicugugovos

Simultaneous Equations - 5p-2q=9 3p+2q=7

Answers

Apnswer:

p = 1

q = -2

Step-by-step explanation:

5p - 2q = 9   eqn 1

3p + 2q = 7    eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2

Reggie deposited $1200 into an account that earns 5% compound interest yearly if he does not deposit any more to the account or take any money out of the account how much interest will Reggie earn on his investment at the end of four years round your answer to the nearest whole number

Answers

Answer:

$1,440

Step-by-step explanation:

1,200 / 10 = 120. 120 is 10%. So this means that 5% is $60. 60 x 4 = 240.

1,200 + 240 = 1,440

Evaluate the expression for x=-2 and y=9.
xy + y =

Answers

Answer:

-18 + 9 = -9

Step-by-step explanation:

-2 x 9 = -18

Julio bought a backpack for $40. The sales tax on his purchase was 6%. How much did Julio do the backpack cost, Julio, including tax

Answers

42.60
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NO LINKS FOR THE LAST TIME JUST HELP ANSWER THE QUESTION WITH A B C OR D WILL GIVE BRAINLIEST!!

Answers

Answer: letter b

Step-by-step explanation:

Greatest common factor of 112 and 63

Answers

Answer:

It's 7!

Step-by-step explanation:

A quadrilateral has vertices at (1.4).
(7,3), (3, -5), and (8,4). The
quadrilateral is dilated by a scale
factor of 3.5 with the origin as its
center. What are the coordinates of
the vertices of the image of the
quadrilateral?

Answers

Given:

A quadrilateral has vertices at (1,4), (7,3), (3, -5), and (8,4).

The quadrilateral is dilated by a scale factor of 3.5 with the origin as its center.

To find:

The coordinates of the vertices of the image of the quadrilateral.

Solution:

If a figure is dilated by a scale factor k with origin as it center, then

[tex](x,y)\to (kx,ky)[/tex]

It is given that the quadrilateral is dilated by a scale factor of 3.5 with the origin as its center. So, the rule of dilation is

[tex](x,y)\to (3.5x,3.5y)[/tex]

Using this rule, we get

[tex](1,4)\to (3.5(1),3.5(4))[/tex]

[tex](1,4)\to (3.5,14)[/tex]

Similarly,

[tex](7,3)\to (3.5(7),3.5(3))[/tex]

[tex](7,3)\to (24.5,10.5)[/tex]

[tex](3,-5)\to (3.5(3),3.5(-5))[/tex]

[tex](3,-5)\to (10.5,-17.5)[/tex]

And,

[tex](8,4)\to (3.5(8),3.5(4))[/tex]

[tex](8,4)\to (28,14)[/tex]

Therefore, the coordinates of the vertices of the image of the quadrilateral are (3.5,14), (24.5,10.5), (10.5,-17.5), (28,14).

The faces of a fair 6-sided cube are numbered 1 through 6.
What is the probability that a 2, 3, or 5 will land face-up on
the next roll?

Answers

Answer:

1/2

Step-by-step explanation:

2,3,5 are three out of a total of six options

3/6 = 1/2

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Answers

Answer:

c

basically you add male (x) and female (y) together and get 127, there are 23 more male athletes (x) so to get the same amount of make and female you need to add 23 to female (y) so the answer will be c.

Help! Best answer gets brainliest

Answers

Answer:

7.9

Step-by-step explanation:

the first thing to do is find the second projection.

16-7 = 9

than we can use a proportion to find BD

7 : BD = BD : 9

BD = √9 x 7 = √63 = 7.9

we have to use the square root because in the proportion BD Is repeated two times. If we don’t use it, we find BD^2

4y^2+20y+25
Factor the polynomial completely

Answers

Answer:

(2y+5)^5

Step-by-step explanation:

Use the "PERFECT SQUARE RULE"

If 20 machines produce 1,240 printers in a day,
how many more machines are needed to produce
1,984 printers in a day?

Answers

Division is one of the four fundamental arithmetic operations. The number of machines that will be needed to produce 1,984 printers in a day is 32 machines.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that 20 machines produce 1,240 printers in a day. Therefore, the rate of production for a single machine can be written as,

Rate of production for a day = 1240/20 = 62 printer per machine

Now, the number of machines that will be needed to produce 1,984 printers in a day is,

Rate of production for a day = 1,984 / Number of machine

62 = 1984 / Number of machine

Number of machines = 32 machines

Hence, the number of machines that will be needed to produce 1,984 printers in a day is 32 machines.

Learn more about Division:

https://brainly.com/question/369266

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Let f(x)=x^2+2 and g(x)=1-3x Find each function value. f(g(-1))

Answers

Answer:

78

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

(x^2+2)*(1-3x)=-3x^3+x^2-6x+2

now plug in -1

-3(-1)^3+(-1)^2-6(-1)+2=12

hope this helped  

You get a brand new car for your 16th birthday, valued at $25,875. Each year you
own the car it decreases in value by 15%. How much will the car be worth when you
turn 21?

Answers

Answer: $25,875 - 15% = 21 993.75  0r $25,875 + 15% = 29 756.25

Step-by-step explanation:

Find the value of x in the picture below.



Answers

The answer is c because

11. Given isosceles trapezoid ABCD with bases 6 and 16 and legs 13.
16
Find the height
17 Find the area

Answers

Answer:

round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

What is the area of this figure?

Drag and drop the appropriate number into the box.

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference What is the area of this figure?

Enter your answer as a decimal in the box.

  cm²

pls help will give a lot of points!!!!​

Answers

Answer:

This one i wrote down too

Step-by-step explanation:

y=225(1.23)^2
growth or decay

Answers

Answer:

Growth

Step-by-step explanation:

You can simply look at this and say that this is growth because the number in the parenthesis is greater than 1.00.

It would only be decay if the parenthesis^2 resulted in a number less than 1

Growth because the number in the parenthesis is greater than 1.

PLEASE HELP ME ASAP ​

Answers

Answer: -2

Step-by-step explanation: add all of the answers together to get -18. Then, divide by the total amount of numbers, 9 numbers in total. -18/9=-2

Answer:

2.111...

Step-by-step explanation: add the numbers altogether and divide by how many number you added

Elijah is going to invest in an account paying an interest rate of 5.5% compounded continuously. How much would Elijah need to invest, to the nearest hundred dollars, for the value of the account to reach $1,400 in 16 years?

Answers

Answer:

600

Step-by-step explanation:

yw

Solve for x "Enter the value for x that makes this
true.

– 2 = – 1/2 ( - 12x – 10)

Answers

Hopes this helps:

Answer: x = -7/6

What is 7.37 as a fraction

Answers

Answer:

737/100

Step-by-step explanation:

help please. i really need to pass​

Answers

Answer:

Number of year, when final value is $61,412.50 = 3 year

Number of year, when final value is $20,000 = 10 year (Approx.)

Step-by-step explanation:

Given:

Depreciation model

y = 100,000[0.85]ˣ

Where x = Number of year

Find:

Number of year, when final value is $61,412.50

Number of year, when final value is $20,000

Computation:

Depreciation model

y = 100,000[0.85]ˣ

61,412.50 = 100,000[0.85]ˣ

0.614125 = [0.85]ˣ

x = 3

Number of year, when final value is $61,412.50 = 3 year

Depreciation model

y = 100,000[0.85]ˣ

20,000 = 100,000[0.85]ˣ

0.2 = [0.85]ˣ

x = 10 (Approx.)

Number of year, when final value is $20,000 = 10 year (Approx.)

Marius combined 4/8 gallon of lemonade, 3/8 gallon of cranberry juice, and 6/8 gallon of soda water to make punch for a party. How many gallons of punch did he make in all?

Answers

13/8, which you can also write as 1 5/8

Roscoe is locked outside his house.The only unlocked window is on the 2nd floor which is 24 feet from the ground. He will have to borrow a ladder from the neighbors house and place it 7 feet from the house. What length of ladder does he need to reach the 2nd floor safely

Answers

Answer:

25 feets

Step-by-step explanation:

The scenario above can be modeled and solved Using Pythagoras :

Height to second floor = 24 feets

Horizontal Distance between foot of ladder and wall = 7 feets

Let length of ladder = x

The lengtb of ladder here is the hypotenus

Recall:

Hypotenus = sqrt(opposite² + adjacent²)

Hence,

x = sqrt(24² + 7²)

x = sqrt(576 + 49)

x = sqrt(625)

x = 25

Hence, length of ladder = 25 feets

what type of association is there ??

Answers

Answer:

Negative because the dots travel down away from the positive area

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