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
Nady [450]
3 years ago
6

Expand: x(2x-5) 2x(3x+4) 6x(x-2y)

Mathematics
1 answer:
MAVERICK [17]3 years ago
8 0
  1. 2x^2-5x
  2. 6x^2+8x
  3. 6x^2-12xy
  • sorry i dont have square syombol so, forthat i have used exp.syombol
You might be interested in
Xavier is buying notebooks for school. The table below shows the number of notebooks he can buy and the total cost.
DochEvi [55]

Answer:

2.41 * n = y

Step-by-step explanation:

From the table, we can notice that the value;

y/n is a constant for each of the rows

this represents the individual costs of each of the books

So, we have it that;

7.23/3 = 4.82/2 = 9.64/4 = $2.41

So, the books have a unit cost of $2.41

Hence, by multiplying the number of books n by 2.41 we can get the cost y

So mathematically, we have the relation as;

2.41 * n = y

7 0
3 years ago
Read 2 more answers
The angle of the roof is 56 she built the doll house with a scale of 1:4 what is it measured
umka2103 [35]
56* angles scale regardless of size 90* @ 9mmx9mm is still 90* in 9kmx9km
6 0
3 years ago
How do I solve this?
anyanavicka [17]

Answer:

Step-by-step explanation:

Slope= -3/1

plot from point  (-2,4)

3 0
3 years ago
Read 2 more answers
The length of a rectangle is increasing at a rate of 6 cm/s and its width is increasing at a rate of 5 cm/s. When
atroni [7]

Answer:

The area of the rectangle is increasing at a rate of 84 square centimeters per second.

Step-by-step explanation:

The area for a rectangle is given by the formula:

A=w\ell

Where <em>w</em> is the width and <em>l</em> is the length.

We are given that the length of the rectangle is increasing at a rate of 6 cm/s and that the width is increasing at a rate of 5 cm/s. In other words, dl/dt = 6 and dw/dt = 5.

First, differentiate the equation with respect to <em>t</em>, where <em>w</em> and <em>l</em> are both functions of <em>t: </em>

\displaystyle \frac{dA}{dt}=\frac{d}{dt}\left[w\ell]

By the Product Rule:

\displaystyle \frac{dA}{dt}=\frac{dw}{dt}\ell +\frac{d\ell}{dt}w

Since we know that dl/dt = 6 and that dw/dt = 5:

\displaystyle \frac{dA}{dt}=5\ell + 6w

We want to find the rate at which the area is increasing when the length is 12 cm and the width is 4 cm. Substitute:

\displaystyle \frac{dA}{dt}=5(12)+6(4)=84\text{ cm}^2\text{/s}

The area of the rectangle is increasing at a rate of 84 square centimeters per second.

8 0
3 years ago
Which graph below shows the rule:output 4 times input
Kipish [7]

Answer:bh5j67k

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Find the value of x in each quadrilateral.
    13·1 answer
  • Find the diagonal length of this figure
    11·2 answers
  • lena has $150 saved for a car. she gets a job to save even more money. She earns $532 for four weeks' worth of work. How much wi
    12·1 answer
  • About 1 in 12 boys are colorblind. If there are 112 boys in eighth grade at a middle school, how many would you expect to be col
    9·2 answers
  • I need help finding x and y
    10·1 answer
  • Bob has a total of 60 adventure cards for a game. The table shows the number of cards, c, distributed to p players. Which equati
    7·1 answer
  • Kennedy needed to get her computer fixed. She took it to the repair store. The
    6·1 answer
  • Haille used a birthday check her mother gave her to start her savings account.Sheplans to save $25per month at well. After 9 mon
    13·1 answer
  • Parallelogram Problem
    7·1 answer
  • If s(x) = 2-x² and t(x) = 3x, which value is equivalent to (sot)(-7)?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!