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Anuta_ua [19.1K]
4 years ago
7

PLS help and explain these problems

Mathematics
1 answer:
vichka [17]4 years ago
6 0
For 19 I got z=15. And for 20 I got k=8.6
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What point is a solution to both equations: y = x - 8 and y = -3x + 16 ?
Arlecino [84]

Answer:

(6,-2)

Step-by-step explanation:

graph and see the point where they cross and that is the solution

4 0
3 years ago
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The mean monthly rent of students at Oxnard University is $780 with a standard deviation of $208.
Nonamiya [84]

Answer:

a) 2.188

b) John's rent is not an outlier

c) His rent has to be higher than $1,235 to be an outlier

Step-by-step explanation:

The mean monthly rent of students at Oxnard University is $780 with a standard deviation of $208.

(a) John’s rent is $1,235. What is his standardized z-score?

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = $1235

μ is the population mean = $780

σ is the population standard deviation = $208

Hence,

z = 1235 - 780/208

z = 2.1875

Approximately to 3 decimal place = 2.188

(b) Is John’s rent an outlier?

No it isn't

(c) How high would the rent have to be to qualify as an outlier?

John’s rent would have to be higher than $1235

8 0
3 years ago
What is the area of this triangle?<br>​
lyudmila [28]
Answer: 12 units squared

Explanation:

A=1/2 bh

A=1/2 8*3

A=1/2 24

A=12

Therefore, the area of this triangle is 12 units squared
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4 years ago
Find the equation of the line below. If necessary, use a slash (/) to indicate a division bar.
ipn [44]

Answer:

y= 1/5x

Step-by-step explanation:

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