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LenKa [72]
4 years ago
7

Please i need help.who could help me

Mathematics
1 answer:
kupik [55]4 years ago
5 0
7% of 124.95 is 8.74, 124.95+8.74+10=143.69 it would take him 9.5 weeks
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Let f(x) = x/(x-6). Find a function y=g(x) so that (f o g)(x)=2x.
earnstyle [38]
Solve as a simultaneous equation maybe?
 f(x) + g(x) = 2x or                            x/(x-6) + y =2x
and then solve so it becomes          2x^2 + 5x =y
  then factorise into brackets or use quadratic formula
5 0
3 years ago
PQR is a right angled triangle calculate the size of angle marked x
romanna [79]

Answer:

\displaystyle x \approx 37.4^\circ

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] cosθ = adjacent over hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

Angle θ = <em>x</em>

Adjacent Leg = 5.8

Hypotenuse = 7.3

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in variables [Cosine]:                                                                    \displaystyle cosx^\circ = \frac{5.8}{7.3}
  2. [Fraction] Divide:                                                                                             \displaystyle cosx^\circ = 0.794521
  3. [Equality Property] Trig inverse:                                                                    \displaystyle x^\circ = cos^{-1}(0.794521)
  4. Evaluate trig inverse:                                                                                      \displaystyle x = 37.39^\circ
  5. Round:                                                                                                             \displaystyle x \approx 37.4^\circ
8 0
3 years ago
Question 15 I mark as brainliest ​
Nesterboy [21]
If imma be honest I don’t understand that
7 0
3 years ago
The lengths, in centimeters, of nine earthworms are shown below. 3, 4, 5, 5, 6, 7, 8, 9, 10 What is the median of the data?
mel-nik [20]
The median of the problem is 6 because it is in the middle of the number set of the earthworm sizes.
6 0
3 years ago
Evaluate 4|-2| - |-3|
vichka [17]
Absolute value of -2 is 2
absolute value of -3 is 3
so now the equation is 4 x 2 - 3
do 4 x 2 first = 8
now do 8 - 3 = 5
6 0
3 years ago
Read 2 more answers
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