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Digiron [165]
3 years ago
12

Factoring quadratic trinomials in the form (ax 2 + bx + c. where a = ≠ 1

Mathematics
1 answer:
Vsevolod [243]3 years ago
8 0
You can try the ac method.
1. Try to factor a common factor from all terms.
2. Multiply ac.
3. Find two factors of ac that add to b, call them p and q.
4. Rewrite the trinomial with the bx term broken up into into px + qx.
5. Factor by grouping.
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Find x, the answer is 5 but how do I get it?
dolphi86 [110]

\red{ \rule{40pt}{555555pt}}

6 0
3 years ago
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The mean of five numbers is 8. when another number is added the mean is 7. find the number added
sasho [114]

Answer:

\large \boxed{\sf \ \ 2  \ \ }

Step-by-step explanation:

Hello,

<u>The mean of five numbers is 8</u> so we can write

\dfrac{x_1+x_2+x_3+x_4+x_5}{5}=8

<u>When another number is added the mean is 7</u>, let s note x the another number we can write

\dfrac{x_1+x_2+x_3+x_4+x_5+x}{6}=7

From the first equation we can say

x_1+x_2+x_3+x_4+x_5=8*5=40

So the second equation becomes

\dfrac{x_1+x_2+x_3+x_4+x_5+x}{6}=7\\\\ \dfrac{40+x}{6}=7\\\\40 + x = 6*7=42\\\\ x = 42-40 = 2\\

The solution is then 2

Hope this helps

4 0
3 years ago
Five more than twice a number is less than ten as an inequality?<br> plz help!!!!!!!
Sever21 [200]

Answer:

2x+5<10

Step-by-step explanation:

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5 0
3 years ago
What number is 344% of 107
olga55 [171]

Answer:

368.08

So I turn the numbers into fractions so 344% would be 344/100 because percentages are out of 100. Since it is 344% OF 107, you'd put 107 on the bottom of the fraction and the answer will go on top. I multiply the IS with the OF (IS is the top number and OF is the bottom) so you'd multiply 107x344 to get 36808. Since 344 is a percent (out of 100) you have to do divide the answer by 100 to get 368.08

I hope that helps!

8 0
3 years ago
70 points!! look at image attached
ch4aika [34]
Combine like terms: (9x-6)+(8x+9)

9x+8x=17x

-6+9=3

(9x-6)+(8x+9)=17x+3
4 0
2 years ago
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