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levacccp [35]
3 years ago
13

Someone pls pls help me with this question I’ll mark brainliest

Mathematics
1 answer:
fiasKO [112]3 years ago
4 0

Answer:

It would be C

Step-by-step explanation:

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Algebraic expression and identity 1)simplify the following (3a+b)3 +(3a-b)3
mylen [45]

Answer:

(3a+b)^3+(3a-b)^3=54a^3+18ab^2

Step-by-step explanation:

Given: (3a+b)^3+(3a-b)^3

Formula: x^3+y^3=(x+y)(x^2-xy+y^2)

(x+y)^2=x^2+2xy+y^2

(x-y)^2=x^2-2xy+y^2

x\rightarrow 3a+b

y\rightarrow 3a-b

\Rightarrow (3a+b+3a-b)((3a+b)^2-(3a+b)(3a-b)+(3a-b)^2)

\Rightarrow (6a)(9a^2+b^2+6ab-9a^2+b^2+9a^2+b^2-6ab)

\Rightarrow (6a)(9a^2+3b^2)

\Rightarrow 54a^3+18ab^2

5 0
3 years ago
A display case of DVDs are marked 19 for $10. If Larry has $50, how many DVDs can Larry get? (Assume no tax or other fees.)
Delicious77 [7]

Answer:

95

Step-by-step explanation:

19 DVDs for 10 dollars and he has 50 dollars well 50 dollars is just 5 groups of 10 so just 19 x 5 = 95

5 0
2 years ago
How do you solve this
arlik [135]
The answer is 1,800, you would multiply 5 by 10 which is 50 then t would be 50 to the 4th power 50 times 4 is 200. then you do the same on the other side 3 time 10 which is 30 to the second power which is 90 than you multiply 200 and 90 because when you have two parentheses next to each other you always multiply but when you do that your answer turns out to be 1,800 
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3 years ago
What does zero represent in your story problem
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What is the story problem put the story promblem
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Which statements are true? Select the two correct answers.
denpristay [2]

Answer:

5.the square root is positive number lessthan 1 is beteween 0 and 1

1.the square root of a positive number greater than 1 is less thsn number

8 0
3 years ago
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