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3 years ago

Which equation is false for x = 6?

Mathematics

1 answer:

wlad13 [49]3 years ago

8 0

Answer:

choice A. Since 12 -8 = 4 not 5

Step-by-step explanation:

if we plug in x =6 for 2x -8 = 5

2*6 - 8 = 12 - 8 = 4 not 5

Try B. 3*6 + 7 = 18 + 7 = 25 = 25 true

Try C. 4*6 + 12 = 24 + 12 = 36 = 36 true

Try D. 6*6 - 6 = 36 - 6 = 30 = 30 True

from the Great MysticChaCha

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You simultaneously flip a pair of fair coins. Your friend gives you one dollar if both coins come up heads. You repeat this ten

sergey [27]

Answer:

E(X) = $2.5

P(Worst than Average) = 0.072

Step-by-step explanation:

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5 0

3 years ago

Find all x-intercepts of the function. Express your answer as a list of x-values. f ( x ) = − 45 x 3 + 60 x 2 − 20 x

mr Goodwill [35]

Answer:

x = 0, $\frac{2}{3}$

Step-by-step explanation:

Factorise f(x) and equate to zero for x- intercepts

f(x) = - 5x(9x² - 12x + 4) = 0 ( common factor of - 5x )

To factor the quadratic consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term, that is

product = 9 × 4 = 36 , sum = - 12

The factors are - 6 and - 6

Use these factors to split the middle term

9x² - 6x - 6x + 4 = 0 ( factor the first/second and third/fourth terms )

3x(3x - 2) - 2(3x - 2) ( factor out (3x - 2) )

(3x - 2)(3x - 2), hence

f(x) = - 5x(3x - 2)(3x - 2) = 0

equate each factor to zero and solve for x

- 5x = 0 ⇒ x = 0

(3x - 2)² = 0 ⇒ x = $\frac{2}{3}$ of multiplicity 2, indicating turning point

x - intercepts are x = 0, $\frac{2}{3}$

6 0

3 years ago

Is it true or false?

artcher [175]

False explanation..........

4 0

3 years ago

How Can you divide that

Archy [21]

First you ask yourself, can 8 go into 1? The answer is no. Can 8 go into 12? Yes, 1 time. So you put 1 on top of the 2 and subtract 8 from 12. That gives you 4. Then you pull down the 8 from 128 and ask how many times can 8 go into 48? The answer is 6. So your answer is 16. Hope I helped!

6 0

4 years ago

Read 2 more answers

What is the slope of the line through (-1, 4) and (1, -2)

Vesna [10]

Answer:

6/2

Step-by-step explanation:

(y2-y1)/(x2-x1)

4-(-2) over 1-(-1)

4+2 over 1+1

6/2