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
max2010maxim [7]
3 years ago
5

Please answer this question​

Mathematics
1 answer:
EleoNora [17]3 years ago
8 0

Step-by-step explanation:

a) \:  -  \frac{3}{7} a \: \:  \times   \:  -  \frac{21}{15} b

=  \frac{ 3}{5} ab \: (ans)

b) \: 3xy(5 {x}^{2}  {y}^{2}  - 4yz)

= 3xy \times 5 {x}^{2}  {y}^{2}  - 4yz \times 3xy

= 15 {x}^{3}  {y}^{3}  - 12x {y}^{2} z \: (ans)

You might be interested in
a car travels an average speed of 64 miles per hour. how many miles does it travel in 5 hours and 15 minutes?
Contact [7]
Distance is speed or velocity multiplied by time: d = v * t

We know the speed of the car and the time it travelled, so input the two into the equation above and solve for the distance travelled.

d = v * t

d = 64 m/h * (5 hours and 15 minutes) = 64 m/h * (5.25 hours)

d = (64 * 5.25) miles


d = 336 miles
6 0
3 years ago
Find BC.( the value of x)<br> 1. 2.3 cm<br> 2. 2 cm<br> 3. 1.5 cm<br> 4. 1.2 cm<br> PLEASE HELP!!
elena-14-01-66 [18.8K]
It's a proportion.
2 is to x as 15 is to 9, or 2/x = 15/9.
Multiply the means and extremes
15x = 18
divide both sides by 15 to get x by itself.
x = 1.2

4 0
3 years ago
Read 2 more answers
How can a company use a scatter plot to make a future sales decision?​
sineoko [7]

Answer:

Hope this helps :)

Step-by-step explanation:

A scatter plot is a two-dimensional diagram that displays individual data points based on the intersection of two variables, shown as vertical and horizontal axes. Individual data points or values are plotted at particular coordinates of the two variables being studied. Patterns of data points provide a visual representation of relationship between the two variables. A wide range of jobs and careers use this valuable analytical tool for data analysis and decision making.

My conclusion,

They help organize important data for future occurences.

5 0
3 years ago
What is -8c+8c-12 when you are simplifying
Romashka [77]

Answer:

Multiply c and 8

Multiply c and 1

The c just gets copied along.

The answer is c

c

8*c evaluates to 8c

Because of the minus sign

8c becomes - 8c

The answer is -8c

Multiply c and 8

Multiply c and 1

The c just gets copied along.

The answer is c

c

8*c evaluates to 8c

-8*c+8*c evaluates to 0c

-8*c+8*c-12 evaluates to -12

The final answer is

-12

Step-by-step explanation:

Please mark brainliest and have a great day!

5 0
3 years ago
Can any one help me please
frutty [35]
<span>i think this is the answer....... -yx • (y2 - 15)

</span>
7 0
4 years ago
Other questions:
  • How much does liam put in savings in april?
    9·1 answer
  • Question 12.12. In 2010, the population of a city was 65,903. It was expected to grow at a rate of 0.7% each year.
    6·1 answer
  • Evaluate the following expression.<br>2 + (3 - 2 x 2) x 1<br>​
    9·1 answer
  • If AB=9 and A lies at 5 where could B be located
    14·2 answers
  • Which choice is the equation of a line that passes through the point (–2, 8) and is perpendicular to the line represented by thi
    10·1 answer
  • Evaluate the expression for ((8x^2)^2/(2y^3)4)^-1 for x=2 and y=-1
    8·1 answer
  • Angle 5 and 6 are supplements and angle 5 is 24 more than half the measure of angle 6. find the measure of each angle.
    9·1 answer
  • Vicky came home from the matinee at 5:45 pm.The travel time to and from the cinema was 1/2 hr each way . She spent 2 1/4 hrs at
    12·2 answers
  • A polling company plans to create a probability model for a state election. In a telephone survey of 750 residents who stated th
    12·1 answer
  • Companies also gather data on customer web use and preferences often without
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!