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pychu [463]
4 years ago
14

WILL GIVE BRAINLIEST!!! combine like terms.

Mathematics
2 answers:
Zepler [3.9K]4 years ago
7 0
-2x2 -2

The answer for the 2nd question :

5b3 -4b2
slava [35]4 years ago
5 0

Answer:

Q1 = -2 (x^2 + 1)

Q2 = b^2(5b - 4)

Step-by-step explanation:

Q1)

(6x^2 + 3) - (5 + 8x^2)

= 6x^2 + 3 - 5 - 8x^2

= -2x^2 - 2

Take common,

= -2 (x^2 + 1)

Q2)

(2b^3 - 7b^2) + (3b^2 + 3b^3)

= 2b^3 - 7b^2 + 3b^2 + 3b^3

= 2b^3 + 3b^3 - 7b^2 + 3b^2

= 5b^3 - 4b^2

= b^2(5b - 4)

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A high school is conducting a vote to see which class (freshman, sophomore, junior, or senior) can go to see a play performance.
Lady_Fox [76]
The probability of an event is considered fair when the probability of the event happening is equally likely.

Thus, the way <span>each vote should be counted so that the outcome is fair is "</span><span>The freshman votes count as 1 vote, the sophomore as 1.14 votes, the juniors as 1.45 votes, and the seniors as 1.23 votes.</span>"
6 0
3 years ago
Use the discriminant to describe the roots of each equation. Then select the best description.
IrinaK [193]
\frac{-b+- \sqrt{b^{2} -4ac }  }{2a}
This is the solution of the equation, where a=1, b=-5, c=7

So the discriminant is : 
b^2-4ac=25-4*7= -3
The square root of -3 is non-real, this both solutions are non-real. 
3 0
3 years ago
Read 2 more answers
17. Oscar, Lily and Jack collect souvenir coins. Oscar has 44 more coins than Lily and 48 more coins than Jack, Oscar has 6 more
Sladkaya [172]

Answer:

166 marbles

Step-by-step explanation:

O - 44 = L

O - 48 = J

O - 6 = L + J

I want to isolate O here

O = 44 + L

Plug it in

44 + L - 6 = L + J

38 + L = L + J

38 = J

Now we know that Jack has 38.

O - 48 = J

O - 48 = 38

O = 86

Now we know Oscar has 86.

O - 44 = L

86 - 44 = L

42 = L

Lily has 42.

38 + 86 + 42 = .....166

They have 166 coins altogether - Also Happy New Year!!! :D

8 0
3 years ago
Read 2 more answers
Find the length of a rectangle given that the perimeter is 180 feet and the length is 5 times the width.
Tatiana [17]

Answer:

Hi there!

Your answer is:

The length is 75

Step-by-step explanation:

P=180

L=5w

Perimeter formula

L+L+W+W=P

Plug in known values

5W+5W+W+W=180

12W=180

/12

W=15

Plug in width in length formula!

L=5W

L=5(15)

L=75

4 0
4 years ago
If you can solve this ill give you the brainliest.
Readme [11.4K]
It's either 1 or 9? ‍♀️
4 0
3 years ago
Read 2 more answers
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