The answer to 5n²+10n+20 is,
⇒ n = -1±√3i
The given equation is,
5n²+10n+20
This equation is nothing but a quadratic equation,
Now to solve it,
Equate the complete expression to 0
Therefore,
⇒ 5n²+10n+20 = 0
Divide both sides by we get,
⇒ n²+2n+4 = 0
Applying quadrature formula
⇒ n = [-2±√(2²- 4x1x4)]/2x1
⇒ n = (-2±√-12)/2
Since we know that √-1 = i
Therefore,
⇒ n = -1±√3i
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each number to the nearest thousand.
minutes
Answer:
about 300
21200 rounded is 21000 and 6575 rounded is 7000
Step-by-step explanation:
21000÷7000=300
-31/8 ____ -3.92
Which one is greater
After converting -31/8 to decimal form (-3.875), it is evident that -31/8 is greater than -3.92 as negative numbers increase in value as they approach zero. The answer is -31/8 > -3.92
To determine the answer, we first need to compare two numbers, -31/8 and -3.92. To make this easier, convert -31/8 into decimal form. -31 divided by 8 equals -3.875.
Now, comparing -3.875 (which is -31/8 in decimal form) and -3.92, we can see that -3.875 is greater, because negative numbers get larger as they approach zero, and -3.875 is closer to zero than -3.92. So the answer is: -31/8 > -3.92.
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Maria has 19 hats.
Here we assume
b=beth
m=maria
Now the equation should be
2b+5=m
b+m=26
here we put m equation
So,
b + 2b + 5 = 26
3b = 21
b = 7
So, the hats should be = 26 - 7 = 19
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