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
Sloan [31]
3 years ago
15

Whats the answer to (m-n)(-3)

Mathematics
1 answer:
Likurg_2 [28]3 years ago
3 0
The answer is -3m + 3n
You might be interested in
CAN SOMEONE HELP PLEASE???
DanielleElmas [232]

Answer:he will save 100 $

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Help if you can do this please
olga nikolaevna [1]

Answer:

Step-by-step explanation:

a. Since the parabola is compressed by a factor of 1/3 we can state:

  • a parabola is written this way : y=(x-h)²+k
  • h stands for the translation to the left ⇒ 2*3=6
  • k for the units down  ⇒4*3=12

So the equation is : y=(x-6)²+12

b.Here the parabola is stretched by a factor of 2 so we must multiply by 1/2

  • We khow that a parabola is written this way : y=(x-h)²+k
  • (h,k) are the coordinates of the vertex
  • the maximum value is  7*0.5=3.5
  • we khow tha the derivative of a quadratic function is null in the maximum value
  • so let's derivate (x-h)²+k= x²+h²-2xh+k
  • f'(x)= 2x-2h    h is 1 since the axe of simmetry is x=1
  • f'(x)=2x-2 ⇒2x-2=0⇒ x= 1
  • Now we khow that 1 is the point where the derivative is null
  • f(1)=3.5
  • 3.5=(x-1)²+k
  • 3.5= (1-1)²+k⇒ k=3.5

So the equation is : y=(x-1)²+3.5

7.

the maximum height is where the derivative equals 0

  • h= -5.25(t-4)²+86
  • h= -5.25(t²-8t+16)+86
  • h=-5.25t²+42t-84+86
  • h=-5.25t²+42t+2

Let's derivate it :

  • f(x)= -10.5t+42
  • -10.5t+42=0
  • 42=10.5t
  • t= 42/10.5=4

When the height was at max t=4s

  • h(max)= -5.25(4-4)²+86 = 86 m

h was 86m

8 0
2 years ago
Figure ABCD is transformed to figure A prime B prime C prime D prime, as shown: A coordinate grid is shown from negative 5 to 0
Bess [88]

Answer:

i need this answer too

7 0
2 years ago
Tyler has 45% of his pay check remaining. What fraction of his pay check does he have remaining?
Andreyy89

Answer:

If he has 45% of his cheak remaining we already have the remaining so we just to turn it into a fraction

First we put it over 100

<u>45</u>

100

Then we reduce it to the lowest terms

which would be

9/20

7 0
2 years ago
Read 2 more answers
The length and width of a rectangle are measured as 55 cm and 49 cm, respectively, with an error in measurement of at most 0.1 c
valentina_108 [34]

Answer:

The maximum error in the calculated area of the rectangle is 10.4 \:cm^2

Step-by-step explanation:

The area of a rectangle with length L and width W is A= L\cdot W so the differential of <em>A</em> is

dA=\frac{\partial A}{\partial L} \Delta L+\frac{\partial A}{\partial W} \Delta W

\frac{\partial A}{\partial L} = W\\\frac{\partial A}{\partial W}=L so

dA=W\Delta L+L \Delta W

We know that each error is at most 0.1 cm, we have |\Delta L|\leq 0.1, |\Delta W|\leq 0.1. To find the maximum error in the calculated area of the rectangle we take \Delta L = 0.1, \Delta W = 0.1 and L=55, W=49. This gives

dA=49\cdot 0.1+55 \cdot 0.1

dA=10.4

Thus the maximum error in the calculated area of the rectangle is 10.4 \:cm^2

4 0
3 years ago
Other questions:
  • A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $49 . The total cost to r
    13·2 answers
  • Can someone help me plese
    5·1 answer
  • What is 140% of 600? Round to the nearest hundredth (if necessary).
    6·2 answers
  • Consider following equation m=y2-y1/x2-x1 find slope
    14·2 answers
  • The scatter plot shows the relationship between the time since Martha has left work and the distance she is from home.
    7·1 answer
  • What is the result of 5 divided by 1/5?
    15·2 answers
  • If X = 14, find the value of the variable a. If your answer is not an integer, express it in simplest radical form.
    5·1 answer
  • Help me please !<br> 4,5 and 6
    12·1 answer
  • A mystery number rounds to 200 when rounded to nearest hundred. The sum of its ditgits is 10. When rounded to the nearest 10, it
    13·1 answer
  • A cylindrical metal pipe has external diameter of 6cm and internal diameter of 4cm. Calculate the volume of metal in a pipe of l
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!