3x²-y³ - y³ - z if x = 3, y = -2, z = -5

Simply plug in all the values :)

3(3²) - (-2³) - (-2³) - (-5)

Simplify.

3(9) + 2³ + 2³ + 5

Simplify.

27 + 8 + 8 + 5

Simplify.

35 + 13

Simplify.

48

~Hope I helped!~

4 0

4 years ago

A biology class examined some flowers in a local meadow. They saw 50 flowers, of which 40% were perennials. How many perennial f

a_sh-v [17]

Answer:20

Step-by-step explanation:

No. Of perrenial flowers=50*40%=50*40/100= *20*

5 0

4 years ago

The grade you make on your exam varies directly with the number of correct answers you get on the exam.Answering 15 questions co

yuradex [85]

Answer:

The grade you make on your exam varies directly with the number of correct answers. The constant of variation is 5

Solution:

Given, The grade you make on your exam varies directly with the number of correct answers you get on the exam.

Answering 15 questions correctly will give you a grade of 75 what is the.

We have to find what is the Constant of variation.

Now, according to the given information, grade  number of correct answer

Then, grade = c x number of correct answers, where c is constant of variation.

Now, substitute grade = 75 and number of correct answers = 15

$\text { Then, } 75=c \times 15 \rightarrow c=\frac{75}{15}=5$

Hence, the constant of variation is 5

5 0

3 years ago