Answer:
Step-by-step explanation:
Solve x^2 + 6x + 4. Here the coefficients of the quadratic are a = 1, b = 6 and c = 4. The discriminant is therefore b^2-4ac, or, in this case, 6^2-4(1)(4), or 20.
The roots are:
-6 ± √20
x = ---------------- = -3 ± √4√5: x = -3 + 2√5 and x = -3 - 2√5
2
The -3 comes from the -6/2 in the application of the quadratic formula.
Answer A is correct.
Answer:
135.58 just did this
Step-by-step explanation:
First, I calculated the amount of money he got on Monday. I multiplied. 8.50 x 7 which equals 59.50. Then, I calculated the amount of money he got on Tuesday. I multiplied 8.50 (since that is the number of money he gets paid) to 3.2 (since that’s the amount of hours he works). I got 27.200. Then lastly, I calculated the amount of money he got on Friday. So first I changed 5 3/4 into a decimal. This is 5.75. After, I multiplied 8.50 x 5.75, and got 48.8750.lastly, I added and got 135.575. So if you round it, it will be 135.58
ANSWER
45.6cm to the nearest tenth.
EXPLANATION
The diagonal of the rectangular painting is 62cm.
The height of the painting is 42 cm.
The height of the painting h , the diagonal, and the width of the painting forms a right triangle with the diagonal being the hypotenuse.
From the Pythagoras Theorem,
The width of the painting is 45.6cm to the nearest tenth.
1.) 6.50(m)= x
2.) x= 6.00m + 50
3.)6.50m-0= x
I think that the answer is 3 or 5