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lys-0071 [83]
3 years ago
6

Simplify the polynomial expressions by combining like terms and then multiply the resulting binomial expressions to find their p

roduct (6x-9)(8+5x-5)
Mathematics
2 answers:
patriot [66]3 years ago
6 0

(6x-9)(8+5x-5)=(6x-9)(5x+3)=

=6x\cdot5x-5x\cdot9+6x\cdot3-9\cdot3=\\=30x^2-27x-27


Aleonysh [2.5K]3 years ago
5 0

Answer: 20x squared -33x-27

Step-by-step explanation: So u have (6x-9-2x) (8+5x-5) first you want to combine like terms. 6x-2x = 4x and 8-5 = 3 so u end up with (4x-9) (3+5x) if u follow the FOIL method u will end up with 12x+20x squared -27-45x. Last combine like terms again and the answer is 20x squared -33x-27 and I got the answer correct on Edmentum.

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Answer please thank you
sergiy2304 [10]
I am not sure maybe it is 6
8 0
3 years ago
Read 2 more answers
One number is 6 more than a second number, the sum of the two numbers is 330. what are the numbers?
maksim [4K]

Let's have the first number, the larger number, be <em>x</em>.  We'll have the second, smaller number be <em>y</em>.

We know that x = y + 6, since x is 6 greater than y.

We also know that 330 = x + y.

Because x = y + 6, 330 = y + 6 + y, which simplifies to 330 = 2y + 6.

Now all we need to do is simplify the equation.  First, we subtract 6 from both sides:

330 - 6 = 324

2y + 6 - 6 = 2y.

So we have 324 = 2y.  Then we divide both sides by 2 to get:

162 = y

Plug in y = 162 into the equation x = y + 6 to get:

x = 162 + 6

x = 168

Let's check to make sure our answer is right.  168 is 6 more than 162.  162 + 168 equals 330.  So our two numbers are 168 and 162.

7 0
3 years ago
Write the sum using summation notation, assuming the suggested pattern continues.100 + 121 + 144 + 169 + ... + n2 + ...
leva [86]

Sigma_n=10 ^infinity n^2


It would be infinite.



7 0
3 years ago
In ΔKLM, l = 26 cm, k = 56 cm and ∠K=22°. Find all possible values of ∠L, to the nearest degree.
omeli [17]

Answer:

10 degrees

Step-by-step explanation:

sdfsdfs

4 0
3 years ago
Find the length of YZ
emmainna [20.7K]
Larger triangle’s base length

a^2 + b^2 = c^2
a^2 + 3^2 = 8^2
a^2 = 8^2 - (3^2)
sqrt(a^2) = sqrt(55)
a = sqrt(55)
__________________

Smaller triangle’s base length:

The same formula applies.
a^2 + 3^2 = 5^2
a^2 = 5^2 - (3^2)
sqrt(a^2) = sqrt(16)
a = 4
____________

The finale!

Add the two side lengths of a, which is sqrt(55) + 4 (exact answer)
or... 11.416 (unrounded to thousandths place)

Good luck to you!
5 0
3 years ago
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