Mathematics High School

Use the quadratic formula to solve 2x2 + 2x - 12?

Use The Quadratic Formula To Solve 2x2 + 2x - 12?

Answers

Answer 1

Answer:

2,-3

Step-by-step explanation:

i did the math lol- trust me

Answer 2

Answer:

yellow: 2 & -3

Step-by-step explanation:

Related Questions

can someone help please?

Answers

Answer:

a.  90 degrees (given)

b. 270 degrees (360-90)

c. 16π  (Circumference= diameter * π, diameter= 2r= 2(8)=16, so c= 16*π)

d. 4π (That section is a semicircle, so length should be 1/4 the circumference)

e. 12π (This section is 3/4 the circumference)

f. 64π (Area= πr^2, and r^2= 8^2= 64, so 64π)

g. 16π (That section is 1/4 the area)

Ms. Orozco's class has 8 boys and 12 girls in the class. What is probability of choosing a girl?

Answers

Answer:

12/20 = 3/5

Step-by-step explanation:

hope this helps

Which equation has infinite solutions for x?

Answers

Answer:

Equation 3

Step-by-step explanation:

What is 3.162÷51 . I'll mark you as the brainlyest

Answers

Answer:

The answer will be 0.062

Step-by-step explanation:

Hope this Helped

Answer:

0.062

Step-by-step explanation:

3.162/ 51 = 0.062

If a car travels 7.5 miles in ¼ hour, how many miles will it go in 1 hour?

Answers

30 miles
Since its 1/4 hour that pass you multiply 7.5 with 4

What is the range of the function shown on the graph above?

Answers

Where is the graph?

which table represents a function?

Answers

Answer:

you didn't post the tables

help me please, i need to turn this in quick and im struggling.

Answers

Answer:

3) 0.75

5)96 pens

Step-by-step explanation:

3) 5 percent *15 =

( 5:100)*15 =

( 5*15):100 =

75:100 = 0.75

5) 48/4= 12

12*8=96

Find the inverse of each function. f (x) = 3/x − 2 + 1

Answers

The inverse is f^-1(x)=3/x+1.

Hope it helps:)


Huan's wage increases by 10%. His original wage is £10.40 per hour. What is his new hourly
wage?

Answers

Answer:

(pound sign) 11.44

Step-by-step explanation:

Help please
Find the area of the shaded region

Answers

Answer:

The shaded area is equal to [tex]2500\pi - 1296\pi = 1204\pi.[/tex]

Step-by-step explanation:

The shaded area is equal to the area of the outer circle minus the area of the inner circle.

The area of the outer circle is equal to [tex]r^2\pi = 50^2\pi = 2500\pi[/tex] feet.

The area of the inner circle is equal to [tex]r^2\pi = 36^2\pi = 1296\pi[/tex] feet.

So the area of the shaded area is equal to [tex]2500\pi - 1296\pi = 1204\pi.[/tex]

Does the following represent a function?

Answers

Answer:

No

Explanation:

The x and y values are not constant, therefore, the values in the table do not represent and function

- Find the length of the missing side of the light the
8 cm
15 cm

A.)289 cm
B.)17 cm
C.)23 cm
D.)4.79 cm

Answers

Answer: I think its D

Step-by-step explanation:

Which of the following solutions are represented correctly on their corresponding number line ? Select two that apply.

Answers

A and B, since they both match the sentence given. In statement A, the number line shows george spent less than $20 and in statement B, the number line shows jackie’s coat cost more than $14. C uses a closed dot when it is not necessary and D is just weird.

help please i dont no

Answers

The answer would be 24 glasses because you do 8 x 3 and you get 24

What's nine plus ten? Is it 21 or 19

Answers

Answer:

19 duh

Step-by-step explanation:

The Lowest common multiple of 2 numbers is 126
what are the 2 numbers

Answers

Answer:

Step-by-step explanation:

The least common multiple of 126 and 131 is

16,506

The angular speed for a Wind turbine with blades turning at a rate of 19 revolutions per minute is

Answers

Answer

The answer to the question is 3.157 revolutions per second.

Step-by-step explanation:

The reason is because speed is the distance the object travels in a second.

So, we know that the wind turbine is moving 19 revolutions per minute, so therefore to find the number of rotations the wind turbine is doing per second we have to do 60/19 because there is 60 seconds in a minute.

Therefore, if we do that equation we get the answer, as 3.157 revolutions per second!

I hope this answer helps!

Plsss help this is a grade!!!

Answers

total = 11x+8

add like terms

Answer:

The answer is 11x +8

Step-by-step explanation:

Please markme the brainliest,5 stars, and a thanks!Have a good day!

Use the Distributive Property to write an expression that is
equivalent to 4(y - 3).

Answers

Answer:

4y-12

Step-by-step explanation:

To multiply a sum (or difference) by a factor, each summand (or minuend and subtrahend) is multiplied by this factor and the resulting products are added (or subtracted).

If the operation outside the parentheses (in this case, the multiplication) is commutative, then left-distributivity implies right-distributivity and vice versa, and one talks simply of distributivity.

The equivalent value of the expression is A = 4y - 12

Given data ,

Let the equation be represented as A

Now , the value of A is

A = 4 ( y - 3)

On simplifying the equation , we get

A = 4 ( y - 3 )

So , the left hand side of the equation is equated to the right hand side by the value of A = 4 ( y - 3 )

Opening the parenthesis on both sides , we get

A = 4 ( y - 3 )

Using the distributive property , we get

A = 4 ( y ) - 4 ( 3 )

On further simplification , we get

A = 4y - 12

Taking the common factor as 4 , we get

A = 4 ( y - 3 ) = 4y - 12

Therefore , the value of A = 4y - 12

Hence , the expression is A = 4y - 12

To learn more about equations click :

https://brainly.com/question/19297665

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100 POINTS AND BRANLIEST SUPER EASY
For which equation is (4, 3) a solution?

y = x + 3
y = 3 x – 4
y = 2 x – 5
y = 2 x – 1

Answers

Answer:

y = 2 x – 5

Step-by-step explanation:

We can check all of them starting with equation 1.

y = x + 3

3 = 4 + 3

3 = 7

NOT TRUE

Equation 2:

3 = 3(4) - 4

3 = 12 - 4

3 = 8

NOT TRUE

Equation 3:

3 = 2(4) - 5

3 = 8 - 5

3 = 3

TRUE!

This means the last equation is not true.

Please answeerrr :D Will give brainlyest

Answers

Answer:

Step-by-step explanation:

(3t + 4) + (4t + 3)

Part a

Remove parentheses

3t + 4 + 4t +3

Add

7t + 7

Part b

3t has the same variable ("t") as 4t. And 4 and 3 are both constants (or numbers). Thus, you can add the 3t and 4t together and add 3 and 4 together

Graph y=1.4xy=1.4xy, equals, 1, point, 4, x. plz help its not too late plz

Answers

Replace x with any number and solve for Y.

Do this at least twice to get 2 points.

Place these points on the graph and draw a line through them.

See attached graph.

Let x = 2

y = 1.4(2)

y = 2.8

First point = (2,2.8)

Let x = 5

y = 1.4(5)

y = 7

Second point = (5,7)

The y-intercept is zero, that means the line is passing through origin.

What is the equation of line?

The equation of line is given as

y = mx + c

Where m is the slope and c is the y-intercept.

The equation is given below.

y = 1.4x

In the above equation, y-intercept is not there, which means the line is passing through origin.

More about the equation of line link is given below.

https://brainly.com/question/21511618

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Answer below........

Answers

ans: 70 ...( it is by ; 180-110) because of straight angle= 180...........

I DONT GET THIS HELPPP

Answers

Answer:

The answer is B: so 9

Step-by-step explanation:mark me brainlest and like

A store that buys skateboards buys them from a manufacturer at a wholesale price of $57. The stores markup is 150%. What is the retail price?

Answers

Answer:

$85.50

Step-by-step explanation:

Multiply: 57 times 150% (1.50)

57 times 1.50=85.5

85.5 as money is $85.50

Hope this helped!! :)

Brainliest?!?!

Stay safe and have a wonderful day/afternoon/night!!!

You know 1000 mg = 1g. Convert 2.5 grams into milligrams. ​

Answers

2.5grams = 2,500 milligrams

Answer:

2.5 gramms = 2.500,000 Milligram (mg)

Step-by-step explanation:

multiply the mass value by 1000

I hope u can help me​

Answers

Answer:

A≈6163.05

Step-by-step explanation:

the formula is A=2πrh+2πr2

Can someone cashapp me 12 dollars and I pay them back? It’s an emergency

Answers

Answer:

Wait why

Step-by-step explanation:

I don't understand can you ask your parents or friends. I don't give strangers money.

The Apple Store in Honolulu sells 6,300 iPhones during a 5 hour time period. How many iPhones is The Apple Store selling in 1 minute?

Answers

Answer:

21 phones per min

Step-by-step explanation:

60 (mins in an hour) x 5= 300

6,300 divided by 300= 21

Answer: 21 iPhones a minute

Step-by-step explanation: First you have to find the amount of minutes in 5 hours so you do 5*60 which equals 300. Then you want to divide the total number of iPhone by the total amount of minutes (6,300/300) which gives you 21 iPhones a minute.

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