3 years ago

Use completing the square to solve for x in the equation (X+ 70X-9) = 20

Mathematics

1 answer:

mr Goodwill [35]3 years ago

5 0

Answer:

0.408451

Step-by-step explanation:

(x+70x-9)=20

add x's together

71x-9=20

change symbol and drop number

71x=20+9

71x=29

divide 29 by 71

x=0.408451

You might be interested in

A student conlcuded that the soulion the eqution how do you agree explian why are why not 2x+1+3=0 Is x=4

MaRussiya [10]

Solving the equation:
2x+1+3=0
2x+4=0
2x+4-4=0-4
2x=-4
2x/2=-4/2
x=-2

Therefore, the student that concluded x=4 is incorrect.

3 0

4 years ago

In a triangle ABC, if B = 60° and the ratio of two sides is a : c = 2 : √3 + 1, then A= 45°. True or false?

Taya2010 [7]

I hope this helps and i hope we can be friends i thin its false correct me if wrong

8 0

3 years ago

Find the length median of the trapezoid( 20 points and brainliest if answered)

Korolek [52]

Answer:

1. 36

2. 16

amdmkfefm

3 0

3 years ago

300 is greater than 30 explain using rounding

Verdich [7]

Yes 300 is greater and 30 is less then with rounding

5 0

4 years ago

Read 2 more answers

A circle with area 36π has a sector with a central angle of 11/6π radians. What is the area of the sector?

bazaltina [42]

Answer:

33pi or 103.62 squre units

Step-by-step explanation:

$central \: angle \: ( \theta) \\ = \frac{11}{6} {\pi}^{c} = \frac{11}{6} \times 180 \degree = 330 \degree \\ \\ area \: of \: sector \\ = \frac{ \theta}{360 \degree} \times area \: of \: circle \\ \\ = \frac{ 330 \degree}{360 \degree} \times 36 \: \pi \\ \\ = \frac{ 330 }{10 } \pi \\ \\ = \red{ \bold{33\pi}} \: {units}^{2} \\ = 33 \times 3.14 \\ = 103.62 \: {units}^{2} \\$

4 0

3 years ago