MATHEMATICS HIGH SCHOOL

Factorise this
72-6x

Answers

Answer 1
Answer: 72-6x Factorised is 6(12+-1x)

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If f(x)=x^2+3x-10, then f(10)=?

Answers

Answer:

f(10) = 120

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Algebra I

  • Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = x² + 3x - 10

f(10) is x = 10

Step 2: Evaluate

  1. Substitute:                     f(10) = 10² + 3(10) - 10
  2. Exponents:                    f(10) = 100 + 3(10) - 10
  3. Multiply:                         f(10) = 100 + 30 - 10
  4. Add:                               f(10) = 130 - 10
  5. Subtract:                        f(10) = 120

Which line segment is only a chord of F?

Answers

Answer:

line AB is a chord

Step-by-step explanation:

Any line that segments a circle and joins two points at the circumference of a circle is called a chord.

line AB is a chord

While

line EC is a diameter

line DF is a radius

Answer:

Correct Answer should be AB

Step-by-step explanation:

I toke the quiz so I know its correct

In the drawing below, PQ is parallel to ST. Triangle PQR is similar to triangle TSR. Which statement about the sides is true?

Answers

Answer:

PR corresponds to TR

Step-by-step explanation:

<Q and <S are pair of alternate angles [since PQ is parallel to ST]

<Q = <S [since they are alternate angles]

So, PR corresponds to TR [since they are opposite sides of alternate angles and ΔPQR is similar to ΔTSR]

Answer:

PR corresponds to TR.

Step-by-step explanation:

Its the second choice:

PR corresponds to TR.

This is because they are opposite equal angles ( < Q and <S).

Given: Two is an even integer or three is an even integer.  Determine the truth value of this disjunction.  Justify you answer.

Answers

It is TRUE OR FALSE, which gives TRUE.

Is hand lotion homogeneous or heterogeneous

Answers

Homogeneous; its all the same mixture
Remember: homo- meaning same
hetero- meaning different
heterogeneous!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

A rectangular parking lot has a perimeter of 820ft. The area of the Parking lot measures 42000 ft2. What is the width of the parking lot.

Answers

2W + 2L = 820 
LW = 42,000 or L = 42,000/W 
substitute second equation into first equation: 
2W + 2(42,000/W) = 820 
2W + 84,000/W = 820 
2W^2/W + 84,000/W = 820W/W 
2W^2 - 820W + 84,000 = 0 
quadratic formula: 
W = [820 +/- SQR(672,400 - 4(2)(84,000))]/2(2) 
W = [820 +/- 20]/4 
W = 200, 210 
using second equation: 
L = 42,000/200, 42,000/210 = 210, 200 
The dimensions of the parking lot are 200ft by 210ft.

Answer:

Long story short, the answer is C.) 210
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