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
Evgesh-ka [11]
3 years ago
5

Please help 2x²-5xy-y³ X= -3 Y= -2

Mathematics
1 answer:
KengaRu [80]3 years ago
4 0

2x² - 5xy - y³


x = -3 and y = -2

2.(-3)² - 5.(-3).(-2) - (-2)³

2.9 + 15.(-2) - (-8)

18 - 30 + 8

26 - 30

-4

You might be interested in
Name the place value to which each number was rounded<br> 7.429 to 7.4
alexgriva [62]

Answer:

tenths place

Step-by-step explanation:

1/10=0.1 ==> one-<u><em>tenth</em></u>

4 0
1 year ago
Model With Mathematics During a football game, a kicker is called in twice to kick a field goal from the 30 yard line. Suppose t
Marizza181 [45]

Answers:

  • (a) 0.64
  • (b) 0.04

============================================

Explanation:

Assuming each kick is independent of any other, this means the probability of making two field goals in a row is 0.8*0.8 = 0.64

The probability of missing any single field goal is 1-0.8 = 0.2; so the probability of missing two in a row is 0.2*0.2 = 0.04

----------------

Extra info:

Adding up those results shows that 0.64+0.04 = 0.68 is the probability of either making 2 in a row or missing 2 in a row; that leaves 1-0.68 = 0.32 to represent the probability of making exactly one field goal in either order.

Or you could note that 0.8*0.2+0.2*0.8 = 0.32

8 0
2 years ago
A school has 55 students . If 10 of the students are boys , what is the ratio of girls to boys ?
Art [367]
45:10 I think ? .. that’s how my teacher did it
4 0
3 years ago
What is the answer to y=x+2
trasher [3.6K]

Answer:

Slope of 1 with a y-intercept of 2

Step-by-step explanation:

4 0
3 years ago
What is the value of tan (B) in the diagram?
hodyreva [135]

Answer:

The correct answer is third option

1/√3

Step-by-step explanation:

From the figure we can see a right angled triangle ABC.

Right angled at C.

AB = 10

AC = 5

BC = 5√3

<u>Points to remember</u>

Tan θ = Opposite side/Adjacent side

<u>To find the value of tan(B)</u>

Tan B =  Opposite side/Adjacent side

 = AC/BC

 = 5/5√3

 = 1/√3

Therefore the value of tan(B) =  1/√3

7 0
3 years ago
Read 2 more answers
Other questions:
  • Maureen is taking an antibiotic. The table below shows the amount of antibiotic
    8·1 answer
  • Solve by taking the square root of both sides 4(x-4)^2-180=0
    11·1 answer
  • Find three consecutive odd integers such that the square of the second decreased by four times the first is seven more than six
    7·1 answer
  • .82828282828282 as a simplified fraction
    6·1 answer
  • The equation of line j is
    11·1 answer
  • 2x + y = 2<br> y = -2x - 1
    11·1 answer
  • What are the vertices of angle A’B’C’ if angle ABC is dilated by a scale factor of 2?
    15·1 answer
  • What is the answer 42 ounces to 5 pounds in simplest form
    6·2 answers
  • The diagram shows a rectangle.
    15·2 answers
  • Jed wants to prove that his test scores are greatly improving. He makes the graph shown here.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!