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3 years ago

Name the property that is shown by the following expression. (9•3)•4=9•(3•4)

Mathematics

1 answer:

nata0808 [166]3 years ago

6 0

(9•3)•4=9•(3•4)
answer is

associative property of multiplication

hope it helps

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Identify the factors of the terms of the expression. 3). 5+6a+11b 4). 13m-2n

xeze [42]

Answer:

factors are 5, 6, a, 11, b

Step-by-step explanation:

3) 5 + 6a + 11b

Algebraic expressions: 5 + 6a + 11b 

Are combinations of numbers, variables, and at least one arithmetic.

Term are: 5, 6a, 11b

Each expression is made up of terms. A term can be a signed number, a variable, or a constant multiplied by a variable(s).

Factors are: 5, 6, a, 11, b

Something which is multiplied by something else. A factor can be a variable, number, a term, or a longer expression.

Coefficient: 6, 11

The numerical factor of a multiplication expression that contains a variable.

Constant: 5 

A number that cannot change its value.

4). 13m-2n (note: it applies as above)

7 0

3 years ago

Crystal is paying the bill at a restaurant. Ignoring all taxes, the

Leona [35]

Answer: She will pay $64.90 in total.

Step-by-step explanation: The bill at the restaurant comes to $55 and Crystal wants to include an 18% tip.

So you will convert this into decimal form, which will be 0.18.

Now, you will multiply 55 by 0.18, giving you 9.9.

Add that to 55 and you will have your answer.

Have a great day!

8 0

3 years ago

Jina's dance recital started at 4:46 PM. It ended at 6:13 PM. How long did the recital last?

Tamiku [17]

Answer:

Jina's recital lasted 2 hours and 7 minutes

Hope that helped

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

4. What are the values of x and y? HELP PLEASE

Sergeeva-Olga [200]

The bottom answer is correct. I had some trouble with this so I had to find x and y in separate parts.

TO FIND X
notice that the top triangle and bottom triangles are similar, meaning if you multiple all three sides of one by a specific number, it becomes the same size as the bottom triangle.

17 x n = 8, therefore n=8/17
8 x n = X, therefore X=64/17

For some reason, this does not give a correct value for Y, so I had to use trig

TO FIND Y

Notice that the angle DAB is the same as DBC (lets call this angle Ø)

Using trig rule, we know that the cos of an angle is equal to the adjacent side divided by the hypotenuses.

We can now form some equations:

cosØ = 15/17 (from the top triangle)
cosØ = 8/Y (from bottom triangle)
Now we know that Y=(8x17)/15 = 136/15

X=64/15 Y=136/15

8 0

3 years ago

- Ms. McNeil buys 2.4 gallons of gasoline. The total cost is $7.56. The

Brilliant_brown [7]

Answer:

The price of one gallon of gasoline is $3.15

Step-by-step explanation:

If the lady buys 2.4 gallons of gasoline for a total of $7.56, then as the problem suggests, one can find the unknown price of gasoline per gallon (p) by solving the equation for the unknown "p":

2.4 p = 7.56

then divide both sides by 2.4 to isolate the unknown "" on one side of the equal sign:

p = 7.56/2.4

p = $3.15

so this is the price per gallon of gasoline.

3 0

3 years ago