Answer:
3:4
Step-by-step explanation:
probability = what wanted : total outcome
= 3 heads : 4 tosses
= 3 : 4
Answer:
The total surface area of a regular pyramidis the sum of the areas of its lateralfaces and its base. The general formula for thelateral surface area of a regular pyramidis where p represents the perimeter of thebase and SI the height of inclination.
X² + 5x - 14 = 0
(x-2)(x+7) = 0
x - 2 = 0
x + 7 = 0
x = 2
x = -7
Your answer is B.
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Next question.
2x² - 4x - 6 = 0
a = 2
b = -4
c = -6
And is D.
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Next question
If the discriminant is positive, then there will be 2 solutions.
Your answer is C.
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Next question
Plugging in the equation into the quadratic formula should get you answer choice A.
Answer:
Second answer
Step-by-step explanation:
first answer: 4 negative numbers multiplied = 2 postive numbers multipled = 1 positive number
second answer: 3 negative numbers multiplied = 1 positive number multiplied by 1 negative number = 1 negative number
third answer: Negative and positive numbers multiplied by zero = 0
fourth answer: 2 negative numbers multiplied by 2 positive numbers = 1 positive number multiplied by 1 positive number = positive number.
#3 describes an isosceles triangle.
#5 describes an equilateral triangle.
#7 describes a right triangle.
