All categories

4 years ago

Explain the ones that are marked in red

Mathematics

1 answer:

mafiozo [28]4 years ago

8 0

Answer:

read below

Step-by-step explanation:

so a proportional relationship does not have y-intercepts (ex.: starting price...)

"a small pizza costs $9 and each additional topping costs $.75" is not proportional because it does not start at 0.

"a student earns $12 for each hour she tutors" for example, is proportional because it does start at 0 and does not have anything added to it.

proportional: y = mx

not proportional: y = mx + b

You might be interested in

.solve for c c−1.5+6.8=0.6 I NEED HELP

kiruha [24]

Answer: c= -4.7

Step-by-step explanation:

Look at link hope it helps

4 0

4 years ago

If men's heights are normally distributed with mean 68 and standard deviation 3.1 inches, and women's heights are normally distr

stira [4]

Answer:

the probability that the woman is taller than the man is 0.1423

Step-by-step explanation:

Given that :

the men's heights are normally distributed with mean $\mu$ 68

standard deviation $\sigma$ = 3.1

And

the women's heights are normally distributed with mean $\mu$ 65

standard deviation $\sigma$ = 2.8

We are to find the probability that the woman is taller than the man.

For woman now:

mean $\mu$ = 65

standard deviation $\sigma$ = 2.8

$P(x > 68 ) = 1 - p( x< 68)$

$\\ 1 -p \ P[(x - \mu ) / \sigma < (68-25)/ 2.8]$

= 1-P (z , 1.07)

Using z table,

= 1 - 0.8577

= 0.1423

Thus, the probability that the woman is taller than the man is 0.1423

6 0

3 years ago

Pls help with 29 and 19

Phoenix [80]

You should have written like this
1 hour /16 = x hour /100
x=100/16=25/4=6.25
but it asks how many hours after first hour
6.25-1=5.25

5 0

3 years ago

X + 9 <4x plz awser

Setler [38]

Answer:

x>3

Step-by-step explanation:

7 0

3 years ago

Jason decided that he will sell his stocks if their value per share (x) goes below $5 or above $15. Which compound inequality re

Veronika [31]

Answer:

B. x < $5 or x > $15

Step-by-step explanation:

The "or" in the problem statement gives you a clue that answer choices C and D can be rejected.

If x is the stock value, then value per share "below $5" means x < $5. This corresponds with answer choice B. Of course, "above $15" means x > $15, also corresponding to answer choice B.

3 0

3 years ago