1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldier1979 [14.2K]
3 years ago
13

I need 9-12 please!!​

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0
9:
-q^2 - r^2 + 3s

-9^2 - -6^2 + 3(-20)

-9^2 = -9 * -9 = 81

81 - -6^2 + 3(-20)

-6^2 = -6 * -6 = 36

81 - 36 + 3(-20)

3(-20) = -60

81 - 36 + -60

81 + 36 = 117

117 + (-60)

117 - 60= 57

57

10:
3| x + y |^2 - (xy)^2

3| 3 + -5 |^2 - (3-5)^2

(3-5) = 2

3| 3 + -5 |^2 - 2^2

|3 + -5| = 8

3|8|^2 - 2^2

8 * 8 = 64

3(64) - 2^2

2^2 = 2*2 = 4

3(64) - 4

3*64 = 192

192 - 4 = 188

188

11:
2x^2 - 5xy - y^3

2(-3)^2 - 5(-3-2) - -2^3

(-3-2) = -5

2(-3)^2 - 5(-5) - -2^3

-3^2 = -3 * -3 = -9

2(-9) - 5(-5) - -2^3

2^3 = 2 * 2 * 2 = 8

2(-9) - 5(-5) - 8

18 - 5(-5) - 8

5(-5) = -25

18 - (-25) - 8

18 + 25 - 8

18 + 25 = 43

43 - 8 = 35

35

12: -a^2 + 7b^4 -2c^3

—4^2 + 7(-2)^4 - 2(-3)^3

4^2 + 7(-2)^4 - 2(-3)^3

4 * 4 = 16

16 + 7(-2)^4 - 2(-3)^3

-2 * -2 * -2 * -2 = 16

16 + 7(16) - 2(-3)^3

-3 * -3 * -3 = -27

16 + 7(16) - 2(-27)

7 * 16 = 112

16 + 112 - 2(-27)

2 * -27 = -54

16 + 112 - -54

16 + 112 + 54

112 + 16 = 128

128 + 54 = 182

182
You might be interested in
In a study of births from New York State, data were collected from 4 hospitals and coded as follows: (1) Albany Medical Center (
nalin [4]

Answer:

No. See the explanation below.

Step-by-step explanation:

No makes sense.

For this case the codification used is just a notation to identify the hospital. No matter if the code is a numerical value not makes sense calculate the average for these numbers since that not represent any statistic useful for the study.

And the other reason why is not appropiate calculate the mean of these numbers is that if we calculate the mean we don't have a maning for this number since we can't say the mean for the codes is (a number) since that's irrrelevant for the study.

4 0
3 years ago
Find all of the zeros of the function:
IceJOKER [234]

Answer:Roots: 3;2;-1

Step-by-step explanation: i use horner's scheme for approximating the roots of polynomials

6 0
4 years ago
marius combined 2/10 gallon of lemonade 4/10 gallon of cranberry juice and 3/10 gallon of soda water to make a punch for a party
Rainbow [258]
9/10 gallons because you just add all the fractions and as they have the same denominator u just add the top numbers and leave the bottom one.
6 0
3 years ago
These tables represent an exponential function. Find the average rate of
Finger [1]

Answer:

tuitiyiyohyiiyitugufufytutytyryrfytutu

4 0
3 years ago
Select all of the expressions that are less than 10 2/3.
Dmitry_Shevchenko [17]
A. 10 2/3 x 9/10 = 9 3/5
D. 10 2/3 x 1/8 = 1 1/3
E. 10 2/3 x 3/5 = 6 2/5

Hope This Helps.
5 0
3 years ago
Other questions:
  • I WILL GIVE BRAINLIEST! PLEASE HELP ME
    12·1 answer
  • What is the y intercept of y=-3x-2
    13·1 answer
  • Consider U = {x\x is a real number}
    11·1 answer
  • Write an equation of the line that passes through the given points and is parallel to the given line 1. (4,1);y=-2x+7 2. (0,6);y
    15·1 answer
  • Six positive integers from a list of nine positive integers are $6, 7, 2, 4, 8, 5$. What is the largest possible value of the me
    10·1 answer
  • Finn removes the plug from a trough to drain the water. The volume, in gallons, in the trough after it has been unplugged can be
    6·2 answers
  • Write the number in scientific notation.
    14·2 answers
  • What's the answer? I don't get it<br><br>- 1/2 X + 3 = 1/4 (X-12)
    5·1 answer
  • How do you prove the formula for the sum of an infinite converging series?<br> S∞=a1/1-r
    7·1 answer
  • A bag contains 15 counters:7 red 4 blue and 4 green.a counter is taken out of the bag at random.what is the probability of choos
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!