Answer:
subtract 3x from 5x getting 2x so your new equation is: 2x-1/4=-5/4 then you add 1/4 to -5/4 getting : 2x=-1 the you divide both sides by 2 so x=-1/2
so it asks you to use the quadratic formula which is when you have ax^2+bx+c=0 then you put it into the quadratic formula which is x=((-b+-√(b^2-4ac))/(2a))
so 8x^2+3x=-7 add 7 to both sides 8x^2+3x+7=0
put into the quadratic formula 8x^2+3x+7=0 ax^2+bx+c=0 x=((-b+-√(b^2-4ac))/(2a)) x=((-3+-√(3^2-4(8)(7)))/(2(8))) solve inside of square root first 3^2-4(8)(7)=pemdas 9-4(8)(7)=9-224=-215
so -3+-√-215 we know that square root of negative is not real and is immaginary so i must be involved √-1=i so -215=i√215 so the answer is A
CONTINUATION i√215=i(15)=15i -3+-15i means -3+ or minus 15i then solve for botom part 2(8)=16 (-3+-15i)/16 so the answers are (-3+15i)/16 and (-3-15i)/16
8/20 in simplest form
Answers
8/20 in simplest form is: 2/5
In the United States, 13 out of every 20 cans are recycled. What percent of cans are recycled?
Answers
We can just divide the two numbers.
13/20 = 0.65
Where 100% = 1
So 65%
To do this we have to see how many times 20 goes into 100. The answer is 5. So we have to times 13 by 5. The answer is 65%
An umbrella that costs $6.00 to manufacture is sold for $11.70. What is the percent in price
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Answer:
95%
Step-by-step explanation:
15 yards to 18 yards
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Answer: The distance between 15 yards to 18 yards is 3 yards.