MATHEMATICS HIGH SCHOOL

Forgot how to solve quadratic equations. please use these for example:
(x+4)(x+4)

(d+7)(d+1)

Answers

Answer 1
Answer: Here it is the answer

Related Questions

HIJK is definitely a parallelogram? True or False.
Solve for x. (Geometry)
If log28 = log4 +logx what is the value of x
If f(x)= x^2 and g(x)= x-5 what is f(g(x)) ?
A culture started with 2000 bacteria. After 2 hours it few to 2200 bacteria. Predict how many bacteria will be present after 19 hours.

Find the unit rate:

$2 for 5 cans of dog food

Answers

.40$/1 is the answer to your question
.40 per can
2/5 = .4

Which if the following is a consequence of the identity sin 2x=2(sin x)(cos x ) ?A. sin y = (sin 1/2y)
B. sin 3y= 3( sin 2y)(cos y)
C. sin 4y= 2( sin 2y) ( cos 2y)
D. sin 4y= 4 ( sin 2y) ( cos 2y)
E. sin 8y= 2 ( sin 4y) (cos 2y)

Answers

sin2x=2sinxcosx\n\nAnswer:C.\ sin4y=2sin2ycos2y\n\nbecause:\n\nsin4y=sin[2(2y)]=2sin2ycos2y

Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute. Which of the following piecewise functions represents charges based on Andrew's cell phone plan?

Answers

Answer:

f(x)=\left\{\begin{array}{l}19,\ \ x\le 300\n \n19+0.39(x-300),\ \ x>300\end{array}\right.

Step-by-step explanation:

Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute.

Let x be the number of minutes Andrew uses per month and f(x) be the charges based on Andrew's cell phone plan.

If x\le 300, then f(x)=19.

If x>300, then first 300 minutes are free and each minute of next (x-300) minutes costs $0.39, therefore

f(x)=19+0.39(x-300).

Hence,

f(x)=\left\{\begin{array}{l}19,\ \ x\le 300\n \n19+0.39(x-300),\ \ x>300\end{array}\right.

Answer:

         19, x≤ 300

         19+.39(x-300),  x>300

Step-by-step explanation:

I just did this quiz

The weight of a person on Venus is directly proportional to their weight on Earth. Aperson weighing 120 pounds on Earth weighs 106 pounds on Venus.
Approximately how much would a person weighing 180 pounds on Earth weigh on
Venus?

Answers

Answer:

a person would weigh 158 pounds on venus

Step-by-step explanation:

weight of a person on venus is directly proportional to their weight on earth

i.e. weight on venus ∝ weight on earth

weight on venus = k * weight on earth

where k is the constant of proportionality

according to the question:

106 = k * 120

k = 106/120 = .88

thus,

person weighing 180 pounds on earth weighs on venus:

weight on venus = .88 * 180

  = 158 pounds

Plz helpp FASTTFind the area of triangle ABC with vertices A(2, 3), B(1, -3), and C(-3, 1).
a.
10 units2
c.
14 units2
b.
12 units2
d.
16 units2

Answers

The area of the triangle will be 14 square units. Then the correct option is C.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.

The triangle ABC with vertices A(2, 3), B(1, -3), and C(-3, 1).

Then the area of the triangle is given as,

A = 1/2 | {[2 x (-3) + 1 x 1 + (-3) x 3] - [3 x 1 + (-3) x (-3) + 2 x 1]} |

A = 1/2 | {[-6 + 1 - 9] - [3 + 9 + 2]} |

A = 1/2 | {-14 - 14} |

A = 1/2 x 28

A = 14 square units  

The area of the triangle will be 14 square units. Then the correct option is C.

More about the triangle link is given below.

brainly.com/question/25813512

#SPJ2
Are you sure about your solves??

I think correct answer is 6,

I don't know but the standard way is in the photo:

What is 1.333333 as a fraction ?

Answers

4/3 is the answer....

1.333333 as a fraction equals 1333333/1000000
Other Questions
The unit form and standard form of (2 tens 1 one) x 10?
Help please i don’t kneo
What is $40 with a 30% markup?
Given the system of linear equations: 2x+1/2y=7 6x-1/2y=5 which new equation would be the result of adding the equations together?4x=28x=28x=12y=12