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Elza [17]
2 years ago
9

If a line has a slope of 3, what is the slope of a perpendicular line?

Mathematics
1 answer:
pashok25 [27]2 years ago
6 0

Answer:

Slope of perpendicular line is -1/3

Step-by-step explanation:

The slope of the given line is 3 and we have to find the slope of the perpendicular line.

We know that the slope of two perpendicular lines are negative reciprocal of each other.

In other words if the slope of the line is m then then slope of the perpendicular line is -\frac{1}{m}

The reciprocal of 3 is \frac{1}{3}

Hence, negative reciprocal of 3 is -\frac{1}{3}

Therefore, the slope of perpendicular line is -1/3

C is the correct option.

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Expand the following expression: 15(2+5x)
lorasvet [3.4K]

Answer:

30+75x

Step-by-step explanation:

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2 years ago
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Your employer pays 75% of your health insurance premium. If the annual premium is $2530, and you are paid weekly, how much is de
MAVERICK [17]
** Calculation is based on 52 weeks per year. 

\smile \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile  \smile

     \boxed {Annual \ Premium \ = \$2530}

Your employer is paying 75% of the Premium: 
     \boxed {75\% \ of \ \$2530 \ = \ 0.75 \times 2530\  = \ \$1897.50}

Amount you need to pay:
   \boxed { \$2530 - \$1897.50 = \$632.50}

Amount needed to be deducted weekly from paycheck:
   \boxed{ \$632.50 \div \ 52 = \$12.16}


\Bigg(     \boxed{ \boxed {Ans: \$12.16 }} \Bigg)
5 0
3 years ago
Read 2 more answers
Three populations have proportions 0.1, 0.3, and 0.5. We select random samples of the size n from these populations. Only two of
IRINA_888 [86]

Answer:

(1) A Normal approximation to binomial can be applied for population 1, if <em>n</em> = 100.

(2) A Normal approximation to binomial can be applied for population 2, if <em>n</em> = 100, 50 and 40.

(3) A Normal approximation to binomial can be applied for population 2, if <em>n</em> = 100, 50, 40 and 20.

Step-by-step explanation:

Consider a random variable <em>X</em> following a Binomial distribution with parameters <em>n </em>and <em>p</em>.

If the sample selected is too large and the probability of success is close to 0.50 a Normal approximation to binomial can be applied to approximate the distribution of X if the following conditions are satisfied:

  • np ≥ 10
  • n(1 - p) ≥ 10

The three populations has the following proportions:

p₁ = 0.10

p₂ = 0.30

p₃ = 0.50

(1)

Check the Normal approximation conditions for population 1, for all the provided <em>n</em> as follows:

n_{a}p_{1}=10\times 0.10=1

Thus, a Normal approximation to binomial can be applied for population 1, if <em>n</em> = 100.

(2)

Check the Normal approximation conditions for population 2, for all the provided <em>n</em> as follows:

n_{a}p_{1}=10\times 0.30=310\\\\n_{c}p_{1}=50\times 0.30=15>10\\\\n_{d}p_{1}=40\times 0.10=12>10\\\\n_{e}p_{1}=20\times 0.10=6

Thus, a Normal approximation to binomial can be applied for population 2, if <em>n</em> = 100, 50 and 40.

(3)

Check the Normal approximation conditions for population 3, for all the provided <em>n</em> as follows:

n_{a}p_{1}=10\times 0.50=510\\\\n_{c}p_{1}=50\times 0.50=25>10\\\\n_{d}p_{1}=40\times 0.50=20>10\\\\n_{e}p_{1}=20\times 0.10=10=10

Thus, a Normal approximation to binomial can be applied for population 2, if <em>n</em> = 100, 50, 40 and 20.

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2 years ago
At the Sunnyvale Play House, the price for an adult ticket is $12 and the price of a child's ticket is $6. For Saturday night's
Rzqust [24]

Answer:

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Step-by-step explanation:

adult ticket total + child ticket total = 125 total tickets

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2 years ago
Factor completely 2x2 9x 4. (2x 2)(x 2) (2x 1)(x 4) (2x 4)(x 1) (2x 2)(x 4).
lozanna [386]

Factors of the given expression are (x+4), (2x+1)

Given expression is

2x^2 + 9x+4

<h3>What is a factor?</h3>

A factor is a number that divides another number completely.

Let us split the middle term as:

2x^2 + 8x + x+4\\\\2x(x+4)+1(x+4)\\\\(x+4) (2x+1)

Therefore, factors of the given expression are (x+4), (2x+1)

To get more about factors visit:

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