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Anna [14]
3 years ago
14

Algebra 1 B Unit 7 Lesson 2 Semester B Someone please Help

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0
What would you like help with?
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Can some one help me plz with step by step<br> x^2 + x - 42
Alexeev081 [22]

Answer:

x = 6 or x = -7

Step-by-step explanation:

Solve for x over the real numbers:

x^2 + x - 42 = 0

The left hand side factors into a product with two terms:

(x - 6) (x + 7) = 0

Split into two equations:

x - 6 = 0 or x + 7 = 0

Add 6 to both sides:

x = 6 or x + 7 = 0

Subtract 7 from both sides:

Answer: x = 6 or x = -7

3 0
3 years ago
In his free time. Gary spends 8 hours per week on the internet. and 11 hours per week playing video games. If Gary has 5 hours o
alexandr402 [8]
18% I believe. Because you do the math then you rounded out and then I get 18%
7 0
3 years ago
Read 2 more answers
What is the linear equation representing the value of the robot? [t is measured in years, V is measured in thousands.]
makvit [3.9K]
All of the above or C
8 0
4 years ago
Mari left a tip of $14.00 for a meal that cost $69.00. Approximately, what percent of the tip did she leave?
solmaris [256]
14/69*100=20.29% this is the Answer
5 0
3 years ago
HELP! Please this is urgent!
Ivan
Hello, 

So the discount was 40% that means the original price is 
100 - 40 = 60%

That means 
0.6x = 3
and when finding x (the price) 
x = 5
That would be the original price. 
Hope it helps.
3 0
4 years ago
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