How many solutions does the equation x^2 = 9 have? How do you know?

Answers

Answer 1

Answer:

I'm pretty sure it's 2

Step-by-step explanation:

x^2=9

Step 1: Take the square root.

x=±√9

x=3 or x=−3


Related Questions

Chase and sara went to the candy store. Chase bought 5 pieces of fudge and 3 pieces of gum for 5.70. Sara bought 2 pieces of fudge and 10 pieces of gum for 3.60. Determne If I were to buy 20 pieces of fudge and 20 pieces of bubble gum, it would cost me $

Answers

Let, price of fudge and gum is x and y respectively.

Converting given statements into mathematical equation.

We get :

5x + 3y = 5.70  ....1)

2x + 10y = 3.60 ....2)

Solving equation 1 and 2, we get :

x = $1.05 .

y = $0.15 .

Price of buying 20 pieces of fudge and 20 pieces of bubble gum is :

P = 20( 1.05 ) + 20( 0.15 )

P = $24

Hence, this is the required solution.

if your highway gas mileage is 26 and you take a trip that is 600 miles how much gas will you use​

Answers

Answer: 23.07 gallons of gas

What is the simplified fractional equivalent of the terminating decimal 0.32?
It’s 8/25

Answers

Answer:

yes

Step-by-step explanation:

8/25= 0.32 which is a terminating decimal

Answer: 8

Over

25

Step-by-step explanation:

In cross country, the team score is determined by the place each individual runner finishes. (For example, 1st place is one point, 16th place is 16 points, etc.) In their latest meet, the boys cross-country team scored 55 points. If there were five runners on the team and each runner finished one after another, what places did they come on? Explain your reasoning and support your answer. *

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that there were five rummers in the team;

Each runner finished one after the other

Total. Points scored =. 55

Let the positions of each runner be :

1sr runner = p

2nd runner =.p + 1

3rd runner =.p + 2

4th runner =.p + 3

5th runner =.p + 4

(1st + 2nd + 3rd + 4th +. 5th) runner = 55

(p + p + 1 + p + 2 + p + 3 + p + 4) = 55

5p + 10 = 55

5p = 55 - 10

5p = 45

p = 9

Hence,

1st runner = 9th

2nd runner = 9 + 1 = 10th

3rd runner = 9 + 2 = 11th

4th runner = 9 + 3 = 12th

5th runner = 9+ 4 = 13th

10m - 8n^2
(if m = 2 and 11 = -3)

Answers

Answer: -52

Explanation:
If you plug in the variable answers the equation is 20-8•-3^2 then do the exponent so, 20-8•9, then multiply so 20-72 which is -52.

The solution of the equation when m = 2 and 11 = -3 will be - 52.

What is a solution to a system of equations?

For a solution to be solution to a system, it must satisfy all the equations of that system, and as all points satisfying an equation are in their graphs,

So solution to a system is the intersection of all its equation at single point(as we need common point, which is going to be intersection of course)(this can be one or many, or sometimes none)

We have been given; 10m - 8n^2

(if m = 2 and 11 = -3)

If we plug in the variable

the equation is 20 - 8(-3)^2

Now, do the exponent

So, 20 - 8^9,

Then multiply

20-72 = -52.

Therefore, the solution of the equation when m = 2 and 11 = -3 will be - 52.

Learn more about finding the solution graphically here:

https://brainly.com/question/26254258

#SPJ2

-7(n+2)=-14-7n how many solution does it have

Answers

Answer:

There is an infinite number of solutions.

Step-by-step explanation:

When you simplify the left side of the equation, you get -7n - 14, which is equal to the right side. If you were to plug in any number for n, it will equal the same on both sides of the equation.

URGENT QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2 + 2 = ______

Answers

Answer

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

2+2 = 4!!!

Hope this helps :)

Which list shows the numbers in order from greatest to least?
0.6, 0.453, 0.563, 0.4
0.4, 0.453, 0.563, 0.6
0.6, 0.563, 0.453, 0.4
0.563, 0.6, 0.453, 0.4

Answers

Answer:

c

Step-by-step explanation:

its really simple it's c

What's the difference between Direct and Inverse Proportion? Please explain ​

Answers

Answer: Direct means when x goes up y also goes up, inverse means when x goes up, y goes down and vice versa.

Answer:

Step-by-step explanation:

The answer is that with direct variation, the value and the quantity changes and goes according, either lower or higher, but with inverse variation, the value can go higher, and the quantity can go lower, and the quantity can go higher, but the value can be lower.

Someone please help! Asap

Answers

4x + 3 + 9x + 5 = 47
13x + 8 = 47
13x = 39
X = 3

9(3) + 5

Answer: 32
Answer :
X=3

Steps :

4x+3 + 9x+5
= 13x+8

Then
13x+8 = 47

X=3

Neil is painting two squares on his bedroom wall. The length of one side of the first square is 12 inches. The second square will be 3 times the size of the first square. What is the area of the second square?

Answers

Answer:

36in

Step-by-step explanation:

12 · 3 = 36

Five students write measurements for the three side lengths of various triangles.
Student
Side Lengths
1 3, 4, and 5
2 4, 7, and 10
3 5, 12, and 16
4 6, 8, and 10
5 7, 11, and 13
Which students' measurements form a right triangle? Select ALL that apply.
A Student 1
B
Student 2
С
Student 3
D
Student 4
I
E
Student 5

Answers

Answer:

student 3 i think yea

Step-by-step explanation:

Help!
A volcano on a discovered planet rises to a height of 19.529 mi.
Use the table of facts to find the height of the volcano in feet.
Round your answer to the nearest tenth.

Answers

Answer:

103, 110 ft

Step-by-step explanation:

a square living room has an area of 225 square feet what is the perimeter of the room

Answers

Answer:

divide it by 4

Step-by-step explanation:

Answer:

450

Step-by-step explanation:

225 divided by 2 is 112.5x4= 450 so 450 is your answer

-2/9 ÷ 1/2 as a fraction

Answers

Answer:

-4/9

Step-by-step explanation:

-2/9*2/1

-4/9

Answer:-4/9

Step-by-step explanation:used a caculator

which ordered pair is the solution to y=x+2/5

Answers

Answer: (2, 2 )

Step-by-step explanation:

Plug the x and y-values into the given equation.  If it makes a true statement, then it is a solution.

y = x +  

(0,0) → 0 = 0 +     FALSE

(1, ) →   = 1 +     FALSE

(2, 2 )  →  2  = 2 +     TRUE

Look at the following graph and determine the slope of the line. AY 10 7 5 3 2 1 х 1 2 3 4 5 6 7 8 9 8 9 10​

Answers

Answer:

I believe the slope is 2/3.

The surface temperature ranges from -2°C to 31°C. Find the difference between the max and min temperatures.

Answers

Answer:

33

Step-by-step explanation:

Answer:

29c

Step-by-step explanation:

HURRY!
If Johnson had 1800 apples, and gives 347 to his mon, and hid dad gave him 2876, how many apples does he have.

Answers

johnson has 4,329 apples

Answer:

4329

Step-by-step explanation:

I coan't really explain this sorry.

I hope this helps though!

Also if it's correct could I have a Brainly I need 1 more to level up :3 Thx!

write a real world problem that can be solved using the distributive property

Answers

Answer:

10 + 2. 3(10 + 2) = ? something like that I think .

Step-by-step explanation:

Can you tell me how to divide more easily? ❤️

Answers

Answer: Either use a calculator or do mental math/ practice more often.

Answer:

look t it like multiplication then the answer is divided by one of the numbers

Step-by-step explanation:

hope this was helpful lol

What is the slope of the line that passes through the two points below?
A(-2,-9) B(2,4)

Answers

The slope of the line is 13/4 or 3.25. Oh and 3.25 is just 13/4 in decimal form if you need it. I hope this helps!

what is 11/12 plus (-7/12)? simplest form

Answers

Answer:

1/2

Step-by-step explanation:

11/12 + (-7/12) have the same denominator so you can leave it as is.

11/12+(-7/12) is the same as 11/12-7/12 which is equal to 6/12 which can be simplified to 1/2

2) Which car will travel the most distance (in miles) per gallon? A. The total distance that a Toyota Prius can travel in miles (M) given any gallons of gas (g) is given by M = 35g. B. A Toyota Sienna used 2.5 gallons to travel 55 miles. C. Toyota Rav4 D. Toyota Camry Gallons of Gas Total Distance 2 50 miles 3 75 miles 5 125 miles

Answers

Answer:55

Step-by-step explanation:

(1). Toyota Prius: The total distance the car can travel in miles (M) given any gallons of gas (g) is M = 35g *How much gas is used per mile?

(2)Toyota Sienna: Used 2.5 gallons to travel 55 miles *How much gas is used per mile?

Write an equations to describe the linear relationship. A moving company charges $50 flat fee and $55 per hour to move

Answers

Answer:

55(x)+50

Step-by-step explanation:

Answer:

Y=55x+50

Step-by-step explanation:

What is an equation of the line that passes through the point (7, -7) and is
perpendicular to the line x – 2y = 2?

Answers

Answer:

set two equation of line y=ax+b and y=cx+d

when these two lines are perpendicular to each other, then a*c=(-1)

x-2y=2

=>x-2=2y

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

set the answer is y=ax+b

we can know that a/(1/2)=(-1)

=>a=-2

bring a=-2 and(7,-7) in y=ax+b

-7=(-2)*7+b

=>b=7

the answer is y=-2x+7

Someone help ASAP!!!
Pleaseee

Answers

Answer: C

Step-by-step explanation:

A slide is when you slide it over and a flip is when you flip it around

the answer is C because it said slide than flip across

Victor is making recipes for smoothies. His first recipe calls for 2 cups of strawberries and 7 cups of other ingredients. His second recipe says that 3 cups of strawberries are combined with 9 cups of other ingredients. Which smoothie recipe has more strawberries compared to other ingredients?

Answers

Answer:

The second smoothie recipe has more strawberries compared to other ingredients

Step-by-step explanation:

Recipe 1:

2 cups of strawberries : 7 cups of other ingredients

= 2/7

= 0.29

Recipe 2:

3 cups of strawberries : 9 cups of other ingredients.

= 3/9

= 1/3

= 0.33

The second smoothie recipe has more strawberries compared to other ingredients

−2(x+1/4)+1=5 PLEASE HELP

Answers

Answer:

x = -2 1/4

Step-by-step explanation:

-2(x + 1/4) + 1 = 5

-2x - 1/2 + 1 = 5

-2x + 1/2 = 5

-2x = 5 - 1/2

-2x = 4 1/2

-x = 2 1/4

x = -2 1/4

Hope this helps!

Let me know if I'm wrong :)

Can some one PLEASE answer these for me? (I’ll also mark you brainliest!)

Answers

AnswerAnwser key

Step-by-step explanation:

Answer:

1) -6

2) -8

3) 125185623/1000000000 ( i didn't really understand this one but i hope i got it right)

4) 1

5) 0.94736842

6) 4/5 = 5/4

I can only do up to there for now .... sorry

but i can do the second part in a few mins.

Step-by-step explanation:

i really hope this is right....

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