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
Pavlova-9 [17]
3 years ago
7

if you know that 7 x 8=56, how can you use the commutative property of multiplication to find the product of 8 x 7 ?

Mathematics
1 answer:
Fofino [41]3 years ago
5 0
Its the same thing because your just switching the order which doesn't matter when your adding or multiplying
You might be interested in
I want to make sure i got this right. PLS HELP ASAP I NEED IT<br><br> CALC 1 one question
IrinaK [193]
\bf f(x)=&#10;\begin{cases}&#10;x^3&x\le 1\\&#10;mx+b&x\ \textgreater \ 1&#10;\end{cases}

now, a function may well be continuous, but it may not be differentiable.

graph wise, differentiability means, a smooth curve, with no abrupt spikes or drops or cuts.

so for this piece-wise to be differentiable, the subfunctions must meet at junctions smoothly, with no abrupt changes, so mx + b, must blend in with x³ smoothly.

now, that can only occur if mx + b has the same slope as x³ at that point where they meet.  The point where they meet is at x = 1, well, let's check what is the slope of x³ at x = 1.

\bf \cfrac{d}{dx}[x^3]\implies \left.  3x^2\cfrac{}{}\right|_{x=1}\implies 3(1)^2\implies 3

therefore "m" for mx+b, must be 3 then.

now, what's the value of x³ at x = 1?  well is just (1)³, which is 1.

so for 3x + b, when x = 1, it must also equals 1 as well, that way it meets x³, thus

3x + b

3(1) + b = 1

b = -2

check the graph below.

6 0
3 years ago
Hi can someone help me with this?
zalisa [80]

Answer:

2^{2} or 4

Step-by-step explanation:

7 0
3 years ago
Fleece vests regularly priced at $15.99 are on sale for $12.99. If the sales tax is 5%, how much can you save by buying the vest
gayaneshka [121]
The answer to your question it $3.15
3 0
3 years ago
1/8 of the brass instruments are too if there are 240 instruments in the band how many are tubas
grin007 [14]
1/8 of 240= 1/8 x 240. So 1/8 of 240 is 30.
4 0
3 years ago
Solve each equation. check you solution.<br> (7t - 2) - (-3t + 1) = -3(1 - 3t)
Lynna [10]
(7t-2) - (-3t+1) = -3*(1-3t)
First distribute:
7t-2+3t-1 = -3+9t
Now get all the terms with 't' on the same side by subtracting/adding:
7t+3t-9t = -3+2+1
Combine the terms:
1t=0
t=0

Check:
Plug in 0 for t and see if both sides of the equation come out the same:
Does (7(0)-2) - (-3(0)+1) = -3(1-3(0))  ?
(-2) - (1) = -3(1)  ?
-3 = -3  ?
Yes! It works, so t=0! 
5 0
3 years ago
Other questions:
  • Wing Foot is a particular shoe franchise knows that its stores will not show a profit unless they gross over $940,000 per year.
    8·1 answer
  • Question 3 options: 45 degrees 50 degrees 60 degrees 40 degrees
    6·1 answer
  • What is the opposite value of -(-9) ?
    8·2 answers
  • Writer words to macth the expression 34 - 17
    15·2 answers
  • You have 143 toy farm animals.<br><br> Round that number to the nearest ten.
    8·1 answer
  • Simplify 12x^7y^3 divided by 6x^3y
    10·1 answer
  • Help me ANSWER QUESTION 35 and 36 PLEASEEE THANK YOUUUU&lt;3
    15·2 answers
  • What is the volume of 7cm 4cm 2cm
    12·2 answers
  • Help me with this problem for my quiz pls
    5·1 answer
  • How much times bigger is 1 to 1/4
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!