MATHEMATICS COLLEGE

What is the answer to this equation

(7x-1)+(9x+5)

Answers

Answer 1
Answer: The answer is (7x-1) 20x + x

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Which number line represents the solutions to lx - 5| = 1?
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Simplify the following Expression. 3 √ − 250 3 √-4 =

Answers

Answer:

10

Step-by-step explanation:

\huge \sqrt[3]{ - 250} \sqrt[3]{ - 4} \n \n \huge= \sqrt[3]{ (- 250) * ( - 4)} \n \n \huge= \sqrt[3]{ 1000} \n \n \huge= \sqrt[3]{ {10}^(3) } \n \n \huge= 10

If f(x) = 2x – 5 and g(x) = x +4, then f(g(2)) =

Answers

Answer:

7

Step-by-step explanation:

f(g(2))

f(x+4) and you would replace x with two, so you would get

f(2+4) = f(6)

You would then plug in 6 for the x in the f(x) equation:

2(6) - 5 = 12-5 = 7

Suppose f (x) is a differentiable function such that f (1) = 7 and f ′(1) = 2. Use a tangent line approximation to estimate f (0.8)..

Answers

Tangent approximation,

f(x)=f(x1)+f'(x1)(x-x1)

Then,

f(x)=f(1)+f'(1)(x-1)=7+2(x-1)

And,

f(0.8)=6.6

Work out the percentage change to 2 decimal places when a price of £70 is increased to £99.

Answers

The percentage change in the price is 41.42%.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, a price of £70 is increased to £99.

Now, the difference is 99-70=29

Percentage increase is 29/70 ×100

= 0.4142×100

= 41.42%

Therefore, the percentage change in the price is 41.42%.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ2

Answer: Your answer is 41.43%

To calculate, it is simply (99-70)/70 x 100

which is  equal to 41.43%

Step-by-step explanation:

Greatest common factor for 30 abd 42

Answers

Answer:

  6

Step-by-step explanation:

Because you are familiar with your times tables, you know that ...

  30 = 6·5

  42 = 6·7

The greatest common factor is 6.

Zoey invested $230 in an account paying an interest rate of 6.3% compounded daily.Assuming no deposits or withdrawals are made, how much money, to the nearest
hundred dollars, would be in the account after 12 years?

Answers

Answer:

A ≈ $500

General Formulas and Concepts:

Pre-Alg

  • Order of Operations: BPEMDAS

Algebra I

Compounded Interest Rate: A = P(1 + r/n)ⁿˣ

  • A is final amount
  • P is initial (principle) amount
  • r is rate
  • n is number of compounds
  • x is number of years

Step-by-step explanation:

Step 1: Define

P = 230

r = 0.063

n = 365

x = 12

Step 2: Solve for A

  1. Substitute:                    A = 230(1 + 0.063/365)³⁶⁵⁽¹²⁾
  2. Divide:                          A = 230(1 + 0.000173)³⁶⁵⁽¹²⁾
  3. Multiply:                        A = 230(1 + 0.000173)⁴³⁸⁰
  4. Add:                              A = 230(1.00017)⁴³⁸⁰
  5. Exponents:                   A = 230(2.1296)
  6. Multiply:                        A = 489.808
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