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Ad libitum [116K]
2 years ago
15

URGENT PLEASE HELP

Mathematics
1 answer:
Leto [7]2 years ago
4 0

Answer:

what was the answer?

Step-by-step explanation:

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Please help me asap!!
Sauron [17]
I believe the answer is C
7 0
3 years ago
Help ? Plz forgot the steps (3z+9)(z-4)
Dafna11 [192]
It's a binomial times a binomial, so you FOIL
First multiply the First numbers
3z*z = 3z(^2)
Then multiply Outers:
3z* -4  = -12z 
Nest, Inners:
9*z = 9z
Finally, the Lasts: 
-4*9 = -36
Then, throw it all together in descending order, starting with the variable of highest degree to lowest:
3z^2 - 12z + 9z - 36
Last of all, simplify coefficients with like terms and you're good to go:
3z^2 - 3z - 36
Hope this helps!
3 0
3 years ago
John took 3 exams so far this semester. He scored 45, 65 and 80 on those 3 exams . What score does he need on the fourth exam to
Olegator [25]

Answer:

He \: needs \: to \: score \: 90 \: or \: more

Step-by-step explanation:

\frac{x + 45 + 65 + 80}{4}  \geqslant 70\Leftrightarrow x + 190 \geqslant 280\Leftrightarrow x \geqslant 90

3 0
3 years ago
Please factor 5x^2-23x+12
STALIN [3.7K]

5x^2-23x+12

= 5x^2 - 20x - 3x +  12

= 5x(x - 4) - 3(x - 4)

= (5x - 3)(x - 4)

Hope that helps

3 0
3 years ago
The town of Loro Columbia has an average yearly rainfall of 500 inches. On average how many centimeters of rain does the town ge
irga5000 [103]
You would convert 500 inches to centimeters, which is 500 times 2.54= 1270, then divide that by 365 days, leaving you with an answer of 3.47945205479, or just 3.47 centimeters.
7 0
3 years ago
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