MATHEMATICS HIGH SCHOOL

How many real number solutions does the equation have0=2x^2-20x+50
a. one solution
b. two solutions
c. no solution
d. infinite solutions

Answers

Answer 1
Answer: D =b^2-4ac = 20^2-4*2*50 = 0
a. one solution

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Write 2 eggs is to 3 cups of flour as 12 eggs is to 18 cups of flour as a proportion.A. 2 eggs / 3 cups of flour = 12 eggs / 18 cups of flour. B. 3 eggs / 2 cups of flour = 12 eggs / 18 cups of flour. C. 2 eggs / 3 cups of flour = 18 cups of flour / 12 eggs. D. 3 eggs / 12 cups of flour = 32 eggs / 18 cups of flour.
Jesse collected 42 football cards and 28 basketball cards simpfly the ratio of baseball cards to football cards in his collection
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A data set is normally disturbed. As data points are removed from both ends of the range, what happens to the display of data?

Pls explain me how to solve this

Answers

|f(x)| is equivalent to 2 equations
f(x) when f(x) >= 0 OR -f(x) when f(x)< 0

so |x-11| > 4 is equivalent to
x-11 > 4 when x-11 >= 0 OR
-(x-11) > 4 when x-11 < 0

rearrange
x-11 > 4 when x-11 >= 0 we get
x > 15 when x >= 11 ... means x > 11

-(x-11) > 4 when x-11 < 0 we get
x < 7 when x < 11 ...means x < 7

so we have. x < 7 OR x > 11 for this inequality which is not the correct answer

... now... what is solution for |x-11| < 4
you can try to work as above and should come up with the solution just 'the opposite' which is x > 7 OR x < 11 [ 7 < x < 11 ]

then you work for c) and could work or guess for d)

The numbers 1 through 25 are written in red marker on slips of paper while the numbers 26 through 50 are written with blue marker on slips of paper. All of the papers are put into a bag and shuffled. One card is randomly selected. a) Find the probability of selecting a number greater than 46 or selecting a number written in red. Writing your answer as a fraction and completely simplify.
b)Find the probability of selecting a number written in blue or selecting a number tat is multiple of 10. Write your answer as a fraction and completely simplify.

Answers

a) (27)/(50)
b) (3)/(5)

Factor completely 2x2 − 18

Answers

The factorized form of the expression using the difference of two square is  2(x+3)(x-3)

Factorizing functions

Given the following function expressed as 2x^2 - 18

Factor out the GCF

2(x^2 - 9)

This can be written as

2(x^2 - 3^2)

According to the difference of two square, a^2 - b^2 = (a+b)(a-b)

Simplify

2(x^2-3^2) = 2(x+3)(x-3)

This given the factorized expression of 2x^2- 18

Learn more on factoring here: brainly.com/question/24734894

#SPJ2

Hi Brainiac

2x² - 18

First you need to factor out the common term which is 2

2(x²-9)

Now factor x²-9

2(x+3)(x-3)


I hope that's help:0

Three times the sum of a number and seven is two less than five times the number.

Answers

3 (x + 7) =  5x - 2
3x + 21 = 5x - 2
3x - 5x = -2 - 21

-2x = -23 
x = -23/-2
x = 23/2

1/6 and 3/10 simplified ​

Answers

Answer:

They are already simplified..

Step-by-step explanation:

-1.5 __ -1.05
Is it < or >

Answers