Help me with this please

Mathematics

1 answer:

tankabanditka [31]2 years ago

3 0

Answer:

73/39

Step-by-step explanation:

The slope of the given line is the coefficient of x in the given equation, which we recognize as being in slope-intercept form.

The slope of the perpendicular line will be the opposite reciprocal of this:

-1/(-39/73) = 73/39 . . . . slope of the perpendicular line

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Solve for y 3) 2y + 4x = 8

kobusy [5.1K]

Answer:

Step-by-step explanation:

−

8 0

2 years ago

Factor 9x^2+66xy+121y^2

Korvikt [17]

Answer: (3x + 11y)^2

Demonstration:

The polynomial is a perfect square trinomial, because:

1) √ [9x^2] = 3x

2) √121y^2] = 11y

3) 66xy = 2 *(3x)(11y)

Then it is factored as a square binomial, being the factored expression:

[ 3x + 11y]^2

Now you can verify working backwar, i.e expanding the parenthesis.

Remember that the expansion of a square binomial is:

- square of the first term => (3x)^2 = 9x^2
- double product of first term times second term =>2 (3x)(11y) = 66xy
- square of the second term => (11y)^2 = 121y^2

=> [3x + 11y]^2 = 9x^2 + 66xy + 121y^2, which is the original polynomial.

7 0

3 years ago

PLEASE HELP I WILL GIVE BRAINLEST

Ira Lisetskai [31]

The theoretical probability of getting heads or tails is 1/2 the time.

1/2 of 150 = 75

So theoretically you would get 75 heads and 75 tails.

The experiment got 84 heads, which is greater than 75, so it would be higher than the theoretical probability.

The answer is : <span>It is 6% higher than the theoretical probability.</span>

4 0

3 years ago

Julie works Sunday, monday, and Wednesday 10 hrs. each day. on Tuesday andThursday and Friday are 7 hours each day. She's off on

Oliga [24]

(Sunday, Monday, Wednesday) 3X10=30 hours

(Tuesday, Thursday, Friday) 3X7= 21 hours

30 hours + 21 hours = 51 Hours.

She made $612.00 for 51 hours. $612.00 divided by 51= $12.00 per hour

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3 years ago

A jar contains 8 red marbles numbered 1 to 8 and 7 blue marbles numbered 1 to 7. A marble is drawn at random from the jar. Find

Shkiper50 [21]

Answer:

Therefore the probability that the marble is blue or even numbered is $\frac{11}{15}$