Answer:
Step-by-step explanation:
Eliminate answer 4 immediately, because (4)(3) is not 7.
Look at answer 2: 7x + 3x = 10x, which does not match the middle term 12x in the original polynomial. Eliminate answer 2.
Look at answer 1: 1x + 21x = 22x, which does not match the middle term of the original polynomial. Eliminate answer 1.
All quadratics have solutions. Let's apply the quadratic formula to 3x^2 + 12x + 7: Here a = 3, b = 12 and c = 7, so that the discriminant b²-4ac is
12²-4(3)(7), or 144 - 84, or 60. Being positive, this tells us that the given poly has two real, unequal roots:
-12 ± √60 -12 + 2√15 -12 - 2√15
x = ----------------- = ------------------- and x = --------------------
3 3 3
Normally, if c is a root, then x - c is a factor.
If we try this here, however, the resulting factors do not at all match any of your answer choices.
Don't be offended...but please ensure you have copied this problem down correctly.
Well there weren't any muffins sold so 16x4=64, you have 64 muffins. Then you have 3x24 cupcakes so thats 72 muffins and if you sold 15 of them 72-15 that gives you 57. Leaving you with 64 muffins and 57 cupcakes.
The total bill after tax is $38.44.
<h3>What is the total bill?</h3>
The first step is to determine the total cost of 4 pizzas and 2 orders of breadsticks: (4 x $6.79) + (2 x 2.49) = $32.14
Now, determine the total cost after delivery fee has been added : $3 + $32.14 = $35.14
Now determine the total cost after tax : (1.094) x $35.14 = $38.44
To learn more about taxes, please check: brainly.com/question/25311567
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So a 30 year old professor would be 2.4 standard deviations less than the mean.
Given:
The cone with radius 6 cm and height 11cm.
Required:
Find the volume of a cone.
Explanation:
The formula for volume of cone:
We have radius = 6 cm and height = 11 cm.
So,
Answer:
Volume of cone equals 414.48 cm cube.
