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lubasha [3.4K]
3 years ago
9

Select from the drop-down menu to correctly identify the property shown. −1.4+(−5.8+(−4.9))=(−1.4+(−5.8))+(−4.9)

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
4 0
When you move the parenthesis around within an expression, you are utilizing the associative property. 
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Let R1 and R2 are the remainders when the polynomials x^3 + 2x^2 − 5ax − 7 and x^3 + ax^2 − 12x + 6 are divided by x + 1 and x −
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Answer:

2.44

Step-by-step explanation:

Given: x³ + 2x² - 5ax - 7      and  x³ + ax² - 12x + 6

Also, R1 + R2 = 6

in order to find the value of a:

Let p(x) = x³ + 2x² - 5ax - 7 and q(x) = x³ + ax² - 12x + 6

Using remainder theorem i.e if a polynomial p(x) is divisible by polynomial of form x - a then remainder is given by p(a).

Then,

R1 = p( -1 ) = (-1)³ + 2(-1)² - 5a(-1) - 7 = -1 + 2 + 5a - 7 = 5a - 6

R2 = q( 2 ) = 2³ + a(2)² - 12(2) + 6 = 8 + 4a - 24 + 6 = 4a - 10

Now,

R1 + R2 = 6

5a - 6 + 4a - 10 = 6

9a = 22

a=2.44

Therefore, Value of a is 2.44

7 0
3 years ago
Is a triangle with 3m 2m 4m a right triangle
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Answer:

Step-by-step explanation:

No it’s not because 4+9 = 16

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2 years ago
"the product of -6 and a number"
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if you want all of problem here ^^^^^^^

Answer:

-6x

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

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3 years ago
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Step-by-step explanation:

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The fifth graders were given sandwiches for lunch during your field trip Nathan ate 5 out of 6 leroy ate 7 out of 8 of his sandw
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Answer:

Step-by-step explanation:

The fifth graders were given sandwiches for lunch during their field trip. Nathan ate 5/6 of his sandwich, Leroy ate 7/8 of his sandwich, and Sofia ate 5/8 of her sandwich. Who ate the greatest amount of their sandwich? ... Nathan ate 20/24, Leroy ate 21/24, and Sofia ate 15/24 meaning Leroy ate the most.

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