Mathematics High School

What is the positive solution to the equation 3x^2−12=0?


A.) 3


B.) 2


C) 4

Answers

Answer 1

Answer:

B) 2

Step-by-step explanation:

Solve the equation:

3x² - 12 = 0x² - 4 = 0x² = 4x = √4x = 2 is the positive solution

Correct choice is B

Related Questions

help me pls i’ve been stuck on this

Answers

Answer:

Its 10 cos60, just do it on your calculator cuz I dont have one right now, just type that in and click enter. Step-by-step explanation: Hypotenuse = 10, Angle = 60, 10 cos60 = verticle leg.

He answered already so I’m just here to collect da points
Have a good day

PLZZ HELPP
Find the volume.

Answers

Answer:

330yd^3

Step-by-step explanation:

multiply all of them

Answer:

330 yd^3

Step-by-step explanation:

V=w*h*l

V=5*6*11

V=330 yd^3

A group of friends are at a baseball game and are purchasing souvenirs. Olivia purchased 1 t-shirt and 5 baseball caps, spending a total of $165. Her Marco purchased 1 t-shirt and 4 baseball caps, which cost him a total of $137. Assuming that all of the t-shirts and all of the caps are the same price, what is the price of each?

Answers

Answer:

baseball cap = $28

t-shirt =  $25

Step-by-step explanation:

Olivia: t +5b = 165

Marco: t + 4b = 137

isolate t in Olivia's equation

t = 165 - 5b

plug t into Marco's equation

165 - 5b + 4b = 137

165 - b = 137

b = 28

plug b into either equation

t + 4b = 137

t + 4(28) = 137

t + 112 = 137

t = 25

Classify Two-Dimensional Figures

Answers

Answer:

The bottom left ( square )

Step-by-step explanation:

top left : parallelogram

top right : irregular shape, i'm not sure on it's name

bottom left : square, which in special cases can be a rectangle.

bottom right : Trapezium which comes under the category of a parallelogram

The third figure in the given diagram is a rectangle.

What is a rectangle?

A rectangle is a quadrilateral having the four sides and the sum of the angles is 180 in the rectangle the opposite two sides are equal and parallel and the two sides are at 90-degree.

From the given figure we can see that the third figure is having four sides in which two opposite sides are parallel and equal all the four sides are perpendicular to each other making an angle of 90 degrees.

Therefore the third figure in the given diagram is a rectangle.

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find the vertex. y=10x^2+3

Answers

Answer:

(h,k)

(0,3)

Step-by-step explanation:

Solve the inequality and write the solution in set-builder notation.
t-3>-8

Answers

I have no idea what set builder is, so I'll just solve it if that's okay.

t-3>-8

First, to cancel out -3, you need to add it to both sides.

t-3>-8

+3  +3

t>-5

---

hope it helps

Convert 1/2 radians to degrees

Answers

Answer:

28.65°

Step-by-step explanation:

.5(180/π)= 28.65

What is the volume of the rectangular pyramid below?

Answers

L times W times H (12times13times7) = 1092

Graph the function.
h(x) = -4(x – 3)(x - 1)

Khan sucks

Answers

Answer:

The graph is a translation 3 left and 1 up from the function f(x) = x3.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Vertex: (2,4)

Focus: (2, 63/16)

Axis of Symmetry: x=2

I need help asap!!!

Answers

Answer:

x = 9

Step-by-step explanation:

-5(1 + 1x) = -50

-5 + -5x = -50

-5 + -5x + 5 = -5x

-50 + 5 = -45

-5x = -45

-5x / -5 = x

-45 / -5 = 9

x = 9

Jackson record the elevations relative to sea level that two fish are swimming.The first was at 6 feet, and second was at 11 feet What are the opposite elevations and what do they represent

Answers

the answer is

-6 and -11 which are the opposites

Almost 36% of the students at a middle school are seventh graders. What percent of students are in the seventh grade?

Answers

Answer:

Almost 36%

Step-by-step explanation:

can someone help me how to do this problem >_<

Answers

19 is your answer person
C is the answer
Typing this to make it 20 characters

Can someone please answer this (please don’t send a tinyurl link)

Answers

A. 35% decrease yearly
B. 267.75
C. How much the computer is worth after 4 years

Coach Carrington bought a new piece of equipment for the gym that cost $160. If there was 7% sales tax, how much sales tax was added to the equipment?

Answers

Answer:

$11.20

Step-by-step explanation:

The sales tax is $11.20.

Sales tax= SP(S%/100)

160(7/100)= 11.2

Answer:

$11.2

Step-by-step explanation:

160÷100x7

=11.2

$11.2 is 7% of $160


Help plz anyone :((((

Answers

Answer:

complementary?? definitely not vertical though

Answer:

i believe the correct answer is a. vertical angles

Step-by-step explanation:

tell me if this is incorrect.

how do I found X with this triangle?​

Answers

Answer: 14

tip: search up oster Miller triangle calculator

Find the missing length. Round to the nearest tenth

Answers

Answer:

x ≈ 30.9 (Choice D)

Step-by-step explanation:

We can use cosine for solving this question:

cos (61°) = 15 / x

x = 15 / cos (61°)

x = 30.93998011

x ≈ 30.9 (Choice D)

please help it’s due in an hour!! giving brainlest if explained thank you!!

Answers

Answer:

86%

Step-by-step explanation:

28 were placed on suspension

200 are total (including that 28)

not placed on suspension are the rest, so 200-28=172

172 out of 200 = 86% not placed on suspension

Answer:

86% Pls consider marking brainliest if correct.

Step-by-step explanation:

Okie lets see

In all : 200

Removed : 28

To find percentage : 200-28/200

200 - 28 = 172

172/200 = (172/2)/(200/2)

I did this because 200 is 100x2, and because percentage is over 100

172/2 = 86

200/2 = 100

86/100 = 0.86 = 86%

Find the value of x.

​

Answers

Answer:

38 degrees

Step-by-step explanation:

All triangles equal 180 degrees

43 + 99 = 142

180 - 142 = 38

Use the distributive property to remove the parentheses.
4(x+8)​

Answers

Answer: 18+6w

Step-by-step explanation:

Answer:

4(x+8)

4x+32

4 x X = 4x     4 x 8 = 32      

Step-by-step explanation:

How many solutions does the following equation have?
13(y + 3) = 13y +39
Choose 1 answer:
No solutions
Exactly one solution
Infinitely many solutions

Answers

Answer:

Infinitely many solutions

Step-by-step explanation:

This equation has an infinite number of solutions, so it will be categorized as an identity.

An item is regularly priced at $ 70. It is on sale for 40% off the regular price. How much in dollars) is discounted from the
regular price?

Answers

Answer:

42

Step-by-step explanation:

70 minus 40 percent equals 42

5. Solve the triangle. A = 54°, b = 11, c = 8
O a = 11.5, C = 45.8°, B = 80.2°
O a = 9.0, C = 40.6°, B = 86.4°
O No triangles possible
O a = 9.0, C = 45.8°, B = 80.2°

Answers

Answer:

no triangles possible

Step-by-step explanation:

I hope this helps

You have $45 n your bank account
You start a lawn mowng busness
making $12 per own
How many lawns wl you have to
mow before you have more than
$1179

Answers

You’re answer will be 99 because 12x99=1,188
$1179 (total made) - $45 in bank already = $1,134 divided by $12 (amount charged per lawn) = 95 lawns

a trapezoid is a parallelogram always sometimes never

Answers

Answer:

never

Step-by-step explanation:

trapezoids only have one set of parallel lines. a parallelogram has to have two or more

Joseph took a taxi from his house to the airport. The taxi company charged a pick-up
fee of $3.10 plus $2 per mile. The total fare was $21.10, not including the tip. Write
and solve an equation which can be used to determine m, the number of miles in the
taxi ride.

Answers

Answer:

2m + 3.10 = 21.10

m = 9

Step-by-step explanation:

First Step

2m + 3.10 =21.10

Subtract 3.10 from both sides

Second Step

2m = 18

Divide 2 from both sides

m = 9

The equation is 2m + 3.10 = 21.10

And, the number of miles in the taxi ride is m = 9.

Here,

Joseph took a taxi from his house to the airport. The taxi company charged a pick-up fee $3.10 plus $2 per mile. The total fare was $21.10.

Now,

The equation is written as,

2m + 3.10 = 21.10

Subtract 3.10 from both sides

2m = 18

Divide 2 from both sides

m = 9

Hence, The equation is 2m + 3.10 = 21.10

And, the number of miles in the taxi ride is m = 9.

Learn more about the Equation visit:

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Hermes earns $6 an hour for babysitting. He wants to earn at least $168 for a new video game system. Determine the number of hours he must babysit to earn enough money for the video game system. Then interpret the solution.

Answers

Answer:

28 hours

Step-by-step explanation:

6x28=168

To earn atleast $168, Hermes should do babysit for atleast 28 hours.

What is inequality?

Inequality is just like an equation showing relationship between two or more variables but this is expressed in greater than ,less than form.

It defines a range of value of the relationship.

How to form inequality?

We have been given that Hermes earns $6 per hour for babysitting and he wants to earn atleast $168 for a new video game. We have to calculate the minimum number of hours that he should do babysit in order to earn $168.

We know that total revenue will be number of hours* payment of 1 hour.

let the number of hours that he does babysit is x.

The inequality will be :

6x>168

x>168/6

x>28

Hence to earn atleast $168 he should work for atleast 28 hours.

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Find x using the secant-tangent theorem.

Answers

Answer:

Step-by-step explanation:

Anyone help me on this plzzzz :((

Answers

Answer:

Answer should be 47

Step-by-step explanation:

Answer:

47

Step-by-step explanation:

180-133(because of straight angle )

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