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2 years ago

What is the rate of change of the function y = 2x-3y=2x−3?

Mathematics

1 answer:

Viktor [21]2 years ago

6 0

The Correct Answer = 3

Step-by-step explanation:

The average rate of change it is the change on y of the two points over the change in x

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Jacob earned $20 and spent 2/3 of his<br> money on candy. How much money<br> does he have left?

Anna007 [38]

Answer:

Step-by-step explanation:

$13.33= 2/3

so $20- 13.33= $6.67

5 0

3 years ago

Dr. Hawk works in an allergy clinic, and his patients have the following allergies: 71 are allergic to dairy products, 98 are al

sweet [91]

Answer: a) 65.75% and b) 13.7%

Step-by-step explanation:

Since we have given that

Number of people who are allergic to dairy products = n(A) = 71

Number of people who are allergic to pollen = n(B) = 98

Number of people who are allergic to animal dander = n(C) = 96

Number of people who are allergic to all n(A∩B∩C) = 33

Number of people who are allergic only to pollen = 30

Number of people who are allergic only to dairy product = 10

Number of people who allergic to dairy products and pollen n(A∩B)= 43

Now, we first find a, c, d, e from the Venn Diagram:

Since n(A∩B)= 43

$a+b=43\\\\a+33=43\\\\a=43-33\\\\a=10$

For Diary product,

$10+a+b+c=71\\\\a+b+c=61\\\\10+33+c=61\\\\c=18$

For pollen,

$a+30+b+e=98\\\\10+30+33+e=98\\\\e=98-73=25$

For animal dander,

$c+b+d+e=96\\\\18+33+25+d=96\\\\d=96-76=20$

So, Total allergic persons = 10+18+20+25+30+10+33=146

So, (a) What percent of Dr. Hawk's patients are allergic to animal dander?

Percentage that patients are allergic to animal dander is given by

$\dfrac{96}{146}\times 100=65.75\%$

(b) What percent of Dr. Hawk's patients are allergic only to animal dander?

Percentage that patients are allergic to only animal dander is given by

$\dfrac{20}{146}\times =13.7\%$

Hence, a) 65.75%

b) 13.7%

3 0

3 years ago

When is periodic data useful? give examples to support your answer please

Dvinal [7]

It's useful in following conditions:

(i) when you want to know the valency to male compounds
for example :
when H2 and O2 react in normal conditions they form H2O, amd here we needed crossmultiplication of their valencies.

(ii) To know masses while calculating mass number.
For example In case you wanna find mass of 100 molecules of H2O.

(iii) To find electronegativity (to determine type of bond formed).
For example: which kind of bond Hydrogen and Clorine will form.

8 0

3 years ago

34c is otside in the sun and 12c is inside the frezzer so what is the differnce

-BARSIC- [3]

34-12=22
the answer is:
If the outside is 34c and the inside is 12c then the answer is 22c, as you are taking off 12 from 34.

8 0

2 years ago

Pablo makes a spinner to model the probability of simultaneously flipping a "heads" on a nickel, a "heads" on a dime, and a "hea

Butoxors [25]

Answer/Step-by-step explanation:

it's 97.

5 0

2 years ago

Read 2 more answers