Mathematics College

What are the solutions of this quadratic equation?
x + 2x=-2

Answers

Answer 1

Answer:

2x=2

Step-by-step explanation:

easy

Answer 2

Answer:

[tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

The first step is to combine like terms. x + 2x = 3x, the equation is now 3x= -2

Now divide 3 on both sides to get x = [tex]-\frac{2}{3}[/tex] or -0. repeating 6

Related Questions

expand the following expression 9/4(2x+3/4

Answers

Answer:

12345

Step-by-step explanation:

12345 that's rite

In a study a researcher measured a plant to be 8 cm tall. If the plant continues to grow 2 cm every week, after how many weeks will the plant reach the height of 24 cm?

Answers

Answer:

8 weeks

Step-by-step explanation:

Given

[tex]Initial\ Height = 8cm[/tex]

[tex]Growth = 2cm[/tex] weekly

Required

Determine the duration it gets to 24 weeks

First, we need to represent the scenario as a function.

Let the number of weeks be w.

So:

f(w) = Initial Height + Growth * Number of Weeks

This gives:

[tex]f(w) = 8 + 2 * w[/tex]

[tex]f(w) = 8 + 2w[/tex]

When the duration is 24 weeks,

We have that:

[tex]f(w) = 24[/tex]

Substitute 24 for f(w)

[tex]24 = 8 + 2w[/tex]

Make 2w the subject of formula

[tex]2w = 24 - 8[/tex]

[tex]2w = 16[/tex]

Make w the subject of formula

[tex]w = 16/2[/tex]

[tex]w = 8[/tex]

Hence, it'll take the plant 8 weeks to get to 24cm

p = (-18) and q = (-2)
find the distance between the two numbers using subtraction and absolute value

Answers

Answer:

16

Step-by-step explanation:

(-2) - (-18) = 16

The answer is 16 (: Hope this help

What statement describes the graph?

Answers

I think the answer is D. I am incredibly sorry if that’s wrong though!

A plant grew 3 1/4 inches over a 6 1/2 month period.what was the average monthly growth rate for the plant

Answers

Answer:

0.5 inches per a month

Step-by-step explanation:

you turn them to a decimal to make them easier and then divide them to get the answer.

Please help I’ll mark brainliest

Answers

Answer:

B

Step-by-step explanation:

3. Kira is 7 inches shorter than her brother. If her brother is t inches tall,
which expression could represent Kira's height? *
A. t + 7
B.t-7
C. 7-t
D. t - (t + 7)

Answers

Answer:

B

Step-by-step explanation:

Kira is 7 inches shorter than her brother or 7 inches less. Less is a keyword for subtraction. She is 7 inches less than t. So t-7 means 7 less than t inches tall.

PLEASE HELP
Point A is located at (-4, -7). After it is translated, point A' is located at (0, -7). What was the translation?
4 units to the left
4 units down
4 units up
4 units to the right

Answers

the answer is 5 is located up 9

Answer:

For units to the right

Step-by-step explanation:

If if you start at ( -4, -7) and move 4 spaces to the right, you will be at (0, -7).

Help fast!!! Will give brainliest!

Answers

Answer:

7+3(-4)2 have negative value

Step-by-step explanation:

PLEASE I NEED HELP ASAP ITS DUE IN 45 minutes thank you!!!!!!!!!

Answers

Answer: 4.5 3.2 6.7

Step-by-step explanation:

Geometry: Please help

Answers

Answer: 946 inches squared

Step-by-step explanation:

28 times 7 = 196

25 times 30 = 750

196 plus 750 = 946 inches squared

HURRY PLEASE!!!!

the question had no answer choices sorry

Answers

it’s 75° because you only need th

help pls pls pls pls

Answers

I have a very expert technique that is very easy to changed decimal into mixed fraction

All you have to do is nevermind of the integer sign

So we will move on to 30.75

The first is write it in word so 30.75 is thirty and seventy five hundreths

Then analyze so 30 is the whole number and 75 is numerator then 100 is the denominator

So it is 30 75/100 then simplify it to the lowest terms

= 123/4 or 30 3/5

can someone please help me with this :(

Answers

Answer:

(it will take super long for me to answer this)

Step-by-step explanation:

Use desmos graphing calculator, put in your f(x)/y values and you will get all of the answers you need. Hope this is helpful :)

Whats the answer giving brainliest to first correct answer

Answers

Answer: C. 4x is a term in 4x - 5

Step-by-step explanation: 4 is a coefficient due to being combined with x. But together, it is called a term. 5 can not be a coefficient due to it being away from x. I hope this helped.

Answer:

C

Step-by-step explanation:

A is false because 4 is the coefficient of x

B is false because x is the only variable because 5 is a constant and 4 is a coefficient

D is false because a product is the answer to and equation this is an expression

C is correct because 4x and 5 are both terms

me podrían ayudar con hoja de excel tengo que sacar el porcentaje pero considerando que mi 100% es 50 como debería realizar la función

Answers

Answer:

i dont speak spanish

Step-by-step explanation:

The price of a DVD movie was reduced from $20 to $18. By what percentage was the price of the DVD movie reduced? *

A. 10%
B. 2%
C. 8%
D. 12%

Answers

Answer:

A. 10%

Step-by-step explanation:

First calculate how much percentage is in one dollar, which is 5% per dollar, then times that by how much money is deducted which is $2, and you will get your answer 10%.

Hope this helps good luck!

Carla is following a recipe that calls for a cinnamon-sugar mixture that is 5% cinnamon.

If she places 2 grams of cinnamon in a bowl, which equation will help her find how many grams of sugar to add to the bowl?

Answers

Answer:

Step-by-step explanation:

It's a proportion rather than an equation that you might be more accustomed to.

2/0.05 = x/ 0.95       Cross multiply

2 * 0.95 = x * 0.05    Divide by 0.05

2 * 0.95/0.05 = x

x = 38 grams of sugar should be added to the 2 grams of cinnamon.

There's another way to do it.

2/0.05 = (x + 2)/1      Cross multiply

2*1 = 0.05x + 0.1       Subtract 0.1 from both sides

1.9 = 0.05x

1.9/0.05 = x

x = 38

Which ever way you understand better is the answer. 100 / 100% is 1

Which values are equivalent to 0.07

Answers

7 ,.70, .700 they are all equivalent to 0.07

A(n) ______ shows relationships between things you are comparing.

Answers

Equation showing relationships between things you are conparing. An equals sign represents the two expeessions are equal

What is the value of f(–1) when f(x) = 2x + 2?

Answers

Answer:

If f(x) = 2x + 2, to solve f(-1) we want to substitute -1 for x. So f(-1) = 2(-1) + 2 = -2 + 2 = 0

Step-by-step explanation:

0
Put the 1 in the parenthesis, multiply =2(-1)+2
Then add= -2+2

Find the number that if subtracted from 7 and 12, the product of the two numbers gives 104

Answers

6 is the number i think that

-1 is  the number that if subtracted from 7 and 12, the product of the two numbers gives 104

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given,

We need to find the number that if subtracted from 7 and 12, the product of the two numbers gives 104

We need to find two integer factors of the number 104 that multiply up 104 and differ by 12-7 = 5 units

104=2×52

104=4×26

104=8×13

If we consider the  unknown number as (-1) then

number that if subtracted from 7  

7-(-1)=8

number that if subtracted from 12

12-(-1))=13

8×13=104

Hence -1 is the number that if subtracted from 7 and 12, the product of the two numbers gives 104.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

ANYONE HELP ME ASAP PLEASE!! I WILL GIVE BRAINLIEST!
—Find the distance across lake (AB) —

Answers

A^2 + B^2= C^2
Soo 64+121= c^2
185=c^2
13.6= C (side A)
13.6-8= 5.6 rounded 5.6

Will mark you brainlest

Answers

Answer:

0.046875

Step-by-step explanation:

HELP PLEASE!!!

What is the radical form of each of the given expressions?
Drag the answer into the box to match each expression.
21
2
III
3
31
12
V33
V22
V32

Answers

Answer:

We cant drag?

Step-by-step explanation:

Can someone help me please?

Answers

-2 should be correct. It is an input for that given graph.

18 ÷ 0.25?


middle school math​

Answers

18 divided by 0.25 is 72

Can y'all find the value of x? (You will earn 19 points if you answer all of these questions. Please make sure they're right because I'm tryna pass.
1. 7x+3 (x-1) = 5x+13
2. 2.5x= 10
3. 3/5x= 9
4. 4/7x= 32
5. 5/3x-10= 1/3x
6. 2.5x+8= 1.5x-12
7. 1.5x+12=3x+17
8. 4x+2(x-6)= 8x+11
9. 6x+1-+4x= 2(x-3)
10. 6x+2=2 (x-10

Answers

Answer:

1.  16/5      2.  4     3.  15      4.  56     5.  15/2   6.  -20    7.  -3.333333  8.  -23/2  9.  no solutions   10.  -11/2

Step-by-step explanation:

Can i get brainliest for this?

Find the difference.
-7 - (-9)

Answers

Answer: The answer is 2.

Step-by-step explanation: If you have 2 minuses together, then that actually means a plus. -7+9 is 2.

Answer:

-7-(-9) a negative and a negative makes a positive so the new question will be -7+9 which should equal -16?


#1) Kelly is a baker and makes cakes for a living. She makes $20 a day plus
$15 per cake that she bakes. If she makes $80, how many cakes does she
make? Define the variable

Answers

15x+20=80 is the equation. The answer is 4 cakes. The variable describes how many cakes Kelly makes
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