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solniwko [45]
3 years ago
11

John thinks that any two lines must have a point of intersection. Is he correct? If so how do you know. If not, produce a counte

rexample.
Mathematics
2 answers:
katrin [286]3 years ago
8 0

Answer: parallel lines

bekas [8.4K]3 years ago
6 0
This isn't necessarily true. When two lines have equivalent slopes, then they are parallel and will never intersect. 

y=1/2x + 12
y=1/2x + -2
These lines can't intersect because there are equal slopes.
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Suppose that the quarterly sales levels among health care information systems companies are approximately normally distributed w
cupoosta [38]

Answer:

The cutoff sales level is 10.7436 millions of dollars

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 12, \sigma = 1.2

15th percentile:

X when Z has a pvalue of 0.15. So X when Z = -1.047.

Z = \frac{X - \mu}{\sigma}

-1.047 = \frac{X - 12}{1.2}

X - 12 = -1.047*1.2

X = 10.7436

The cutoff sales level is 10.7436 millions of dollars

6 0
3 years ago
Dr.hong prescribed 0.019 liter more medicine than dr tannenbaum.dr Evans prescribed 0.02 less than Dr hong who prescribed the mo
dem82 [27]
Dr.hong prescribed the lest and Dr.evans prescribed the most. that is the answer but this is how i got the answer ok so you see that hong gave 0.019 that is not at all the same as 0.02 so you would add a zero to Evans so it would be 0.020 so it is the same length of hongs so now do you know how i got that if not then message me
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8 0
3 years ago
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
What is the distance (in units) between points C and D? Round your answer to the nearest hundredth. A. 4.54 B. 5.00 C. 5.83 D. 3
Kryger [21]

Answer:

5.83 = CD

Step-by-step explanation:

We can use the pythagorean theorem to solve

The legs are the x and y distances

x = (1- -4) = 5 units and y = 3 units

a^2+ b^2 = c^2

5^2 + 3^2 = c^2

25+9 = c^2

34 = c^2

Taking the square root of each side

sqrt(34) = c  which is the distance from C to D

5.830951895 = CD

5.83 = CD

5 0
3 years ago
Please help me out I need it done ASAP
Scorpion4ik [409]
Your answer will be letter b
3 0
3 years ago
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