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3 years ago

I need help with this 20 points

Mathematics

2 answers:

max2010maxim [7]3 years ago

8 0

Lol i found this give me my points tho

iren2701 [21]3 years ago

4 0

Answer:

I dont understand that sorry

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Can someone pls tell me if this is correct? For the properties, <3 and the bottom one too

saul85 [17]

1. Commutative property of multiplication This is because it represents a*b=b*a
2. Associative property of multiplication. Multiplication problems end with the same product no matter the order of factors.
3. Correct
4. Correct
5. Associative property of addition. Even though the grouping symbols are different, it is equivalent because you are adding all the terms together.
6. Correct

The last one should also be associative property since it applies every time you combine like terms.
Just a reminder: Distributive property is only when you multiply in the form of a(b+c)=ab+ac

7 0

3 years ago

There are 20 diamonds and 15 squares what is the ratio of squares to diamonds (REDUCE)

Inessa05 [86]

Its 15 to 20 which goes to 3 to 4

6 0

4 years ago

Read 2 more answers

HELPPP!! BRAINLIEST IF U ANSWER

makvit [3.9K]

Answer:

180

Step-by-step explanation:

k = 3

v = 60

(Found v by dividing any of the top numbers by the bottom number, ex: 420/7 = 60)

3k = 3(60)

3k = 180

6 0

3 years ago

Read 2 more answers

Write an equation in slope-intercept form for the line with slope -1/4

jarptica [38.1K]

Answer:

The equation would be Y=-1/4X+5

And in the above pic , i have graph the line , too .

Good luck ^.^

3 0

3 years ago

cora says she doesn't need to know the y-intercept of a line to write its equation, just its slope and some other point on the l

Nadusha1986 [10]

Answer:

The equation of line with given slope that include given points is 3 y + x - 20 = 0

Step-by-step explanation:

According to Cora , if we know the slope and points on a line then we can write the equation of a line .

Since , The equation of line in slope-intercept form is

y = m x + c

<u>Where m is the slope of line , and if we know the points ( x , y ) which satisfy the line then constant term c can be get and the equation of line can be formed .</u>

So , From the statement said above it is clear that she is correct .

Now , Again

Given as :

Slope of a line is m = - $\frac{1}{3}$

That include points ( 2 , 6 )

Now from the equation of line as y = m x + c

∴ 6 = - $\frac{1}{3}$ ( 2 ) + c

Or, 6 = - $\frac{2}{3}$ + c

So , c = 6 + $\frac{2}{3}$

or, c = $\frac{18 + 2}{3}$

∴ c = $\frac{20}{3}$

So, The equation of line can be written as

y = - $\frac{1}{3}$ x + $\frac{20}{3}$

Or, 3 y = - x + 20

I.e 3 y + x - 20 = 0

Hence The equation of line with given slope that include given points is 3 y + x - 20 = 0 Answer

8 0

3 years ago