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
expeople1 [14]
2 years ago
11

Evaluate 3xy²-y³ for x=-1 and y=2.help.​

Mathematics
2 answers:
yanalaym [24]2 years ago
7 0
The answer to this problem is -20
Annette [7]2 years ago
7 0

Step-by-step explanation:

=3xy²-y³

=3(-1)(2)²-(2)³

=3(-1)(4)-(8)

= -12-8

= -20

hope it helps.

You might be interested in
43 base five to base seven
solong [7]
First convert to decimal:

43_5=4\cdot5^1+3\cdot5^0=20+3=23

Now convert this to base 7:

\dfrac{23}7=3+\dfrac27
\dfrac27=0+\dfrac27
\implies23=43_5=32_7
7 0
3 years ago
If the area of a trapezoid is 28 m with a height of 14 m in with one of the base being 1 m to find the length of the second face
In-s [12.5K]
The area of a trapezoid is basically the average width times the altitude, or as a formula:
Area = h ·

b 1 + b 2
2


where
b1, b2 are the lengths of each base
h is the altitude (height)
Recall that the bases are the two parallel sides of the trapezoid. The altitude (or height) of a trapezoid is the perpendicular distance between the two bases.

In the applet above, click on "freeze dimensions". As you drag any vertex, you will see that the trapezoid redraws itself keeping the height and bases constant. Notice how the area does not change in the displayed formula. The area depends only on the height and base lengths, so as you can see, there are many trapezoids with a given set of dimensions which all have the same area.
4 0
3 years ago
What is an equation of the line that passes through the points (-6, 5) and (6, 7)?
e-lub [12.9K]

Answer:

y=\frac{1}{6}x+6

Step-by-step explanation:

Let (x_1,y_1)\rightarrow(-6,5) and (x_2,y_2)\rightarrow(6,7)

<u>Determine slope</u>

<u />m=\frac{y_2-y_1}{x_2-x_1}\\ \\m=\frac{7-5}{6-(-6)}\\ \\m=\frac{2}{6+6}\\ \\m=\frac{2}{12}\\ \\m=\frac{1}{6}

<u>Use either ordered pair to find the y-intercept</u>

<u />y=mx+b\\\\7=\frac{1}{6}(6)+b\\\\7=1+b\\\\6=b

<u>Final equation</u>

<u />y=\frac{1}{6}x+6

4 0
2 years ago
Help please.............................................
BaLLatris [955]

Answer:

B.

Step-by-step explanation:

(-7x + 4)(-7x - 4)

= 49x^2 - 28x + 28x - 16

= 49x^2 - 16.

5 0
3 years ago
Read 2 more answers
Factor Completely<br>5xz + 2xy - 3yz​
Julli [10]

Answer:

Your answer is 5xz + 2xy - 3yz

Step-by-step explanation:

The expression is not factorable with rational numbers.

Therefore, You cannot factor the equation.

~Hoped this helped!~

~Brainiliest, please~

7 0
2 years ago
Other questions:
  • Can a triangle have two obtuse angle
    10·2 answers
  • Please helpppppppppppppppppp
    12·1 answer
  • -6x-11x=68 HEEEEEEEEEEELP
    10·2 answers
  • Each day, Maria records the number of news articles she reads. Here are her results for the last eight days.
    15·2 answers
  • What is the area of the rectangle?<br><br> [1] un2
    11·1 answer
  • See the attachment below!!
    12·1 answer
  • Please help. Screenshot attachedn
    6·1 answer
  • Which number is written in scientific notation?
    9·1 answer
  • Mr.Marcus is plotting a pack of pencils equally among his 25 students. After splitting the pencils he has 4 left. If there were
    8·1 answer
  • ?????????????????????????????????????????????????????????????????????????
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!