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kotykmax [81]
2 years ago
6

How do I solve this equation by completing the square. 4X^2 + 12x +5 = 21

Mathematics
1 answer:
Artyom0805 [142]2 years ago
3 0
The Answer is: x1=-4 x2=1.
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padilas [110]
The roots should be 0,-10
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2 years ago
What is the area of the square
Greeley [361]

Answer:

72 square yards

Step-by-step explanation:

If half of the diagonal of a square is 6 yards, then the full diagonal is 12 yards, and then you can find the side length by using the Pythagorean theorem. You know that all of the sides of the square are equal, so let's call them s.

\sqrt{s^2+s^2}=12

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s^2=72

s=\sqrt{72}

Therefore, since the area of a square is the side length squared, the area of this square is 72. Hope this helps!

8 0
3 years ago
Leonardo decided to start training to run in a marathon to keep in shape. After 5 training sessions, he had run a total of 25 mi
lisov135 [29]
Total distance ran by Leonardo in 5 training sessions = 25 miles
Then
Total distance ran by Leonardo in 1 training session = (25/5) miles
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So
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So Leonardo ran for a distance of 2.5 miles today. <span>It is actually very important to read the question carefully and then the answering the question becomes easy.

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8 0
3 years ago
Myra owns a car service that charges a $5 flat rate and an additional $0.50 per mile, which is represented by the equation y = 0
klasskru [66]
Just substitute
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3 years ago
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