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
Nostrana [21]
3 years ago
5

When x=-2 and y=-3. - x^2? - 3xy + 2y^3 is

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
3 0

Answer:

-66

Step-by-step explanation:

-(-2)^2=-4

-3(-2)(-3)+2(-3)^3= -62

-4-62= -66

You might be interested in
A projectile is fired at 571 mi hr. How fast is that in meters per second to the nearest whole value? Use the conversion factor
ELEN [110]

Answer:

Consider this: factors that are the same that are in the numerator and denominator of a fraction cancel out.

e.g. 20/30 = [2(10)]/[3(10)] = 2/3      This is because the 10 present in the numerator exactly equals the 10 present in the denominator.

We can use the above principle for these types of problems!

If the projectile is fired at 422 mi/hr, and we want to convert this speed into m/s, we just need to go through the following process:

422 mi/hr * 1610m/1mi * 1hr/60min * 1min/60s = 189 m/s

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Can you do this one pls
Virty [35]

Answer:

it is 3.00

Step-by-step explanation:

as you can see first we define the variables

1. the y axis(vertical) represents the cost of peaches while the x axis (the bottom one) represents the number of pounds

2. then we find a place where the line crosses the grid but exactly on the corner of the box

3. when we have found our point which is (2,6) it means that every 2 pounds of peaches is 6 dollars

4. divide 6/2 and you get 3 dollars!

8 0
2 years ago
Read 2 more answers
Use the function f(x) to answer the questions.
fiasKO [112]

Answer:

Below in bold.

Step-by-step explanation:

A. −16x2 + 24x + 16 = 0

-8(2x2 - 3x - 2) = 0

-8(2x + 1 )(x - 2) = 0

x = -0.5, 2.

So the x-intercepts are (-0/5, 0) and (2, 0).

B.  As the leading coefficients is negative (-16) the vertex of the graph will be a Maximum.

To find its coordinates we convert the function to vertex form:

f(x) =  −16x2 + 24x + 16

=  -16(x^2 - 1.5x) + 16

Completing the square on  contents of the parentheses:

= -16 [(x - 0.75)^2  - 0.75^2] + 16

= -16(x - 0.75)^2  - 16 * -0.75^2 + 16

= -16(x - 0.75)^2 + 9 + 16

= -16(x - 0.75)^2 + 25.

So the coordinates of the vertex are (0.75, 25)

3 0
2 years ago
The length of the shadow of a building is 150 meters, as shown below: The shadow of a building is 150 meters long. The acute ang
mafiozo [28]
So first you want to draw out you triangle and label everything so side a would be x, side b would be 15 and c would be x
next the angles need to be label 
and finally the anwser is 150m

3 0
3 years ago
Read 2 more answers
Whats -4 (x - 5) = 40
Stels [109]

Answer:

x=-5

Step-by-step explanation:

-4(x-5)=40

-4x+20=40

-4x=40-20

x=20/-4

x=-5

7 0
3 years ago
Other questions:
  • What is that simplified? Algebra 2
    12·1 answer
  • Determine which two values the following expression is between.
    11·1 answer
  • drako found an emarald in a cave at a depth between negative 1\2 and negative 1 2\3 meters. Which number could represent the dep
    6·1 answer
  • Factor the expression.<br> x squared plus 7 x plus 10
    7·1 answer
  • Find the area of the figure. (Sides meet at right angles.)
    7·1 answer
  • I need help on this question
    14·1 answer
  • Please help me i really need help it's due right now at 11:30am if i don't submit i'm not gonna pass please i really need help p
    15·1 answer
  • What is the answer ?
    12·2 answers
  • What is the domain of the relation (8, -2), (4,-2), (3, 2), (-5, -3)?
    5·1 answer
  • PLEASE HELP!! Being timed need help asap.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!