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emmasim [6.3K]
2 years ago
5

C^2cos^2 B+ b^2cos^2 C + bc cos (B - C) = 1/2(a^2+b^2+ c^2)​

Mathematics
1 answer:
melisa1 [442]2 years ago
5 0

Answer:

n

me vale

Step-by-step explanation:

spanish hgjddjzfurdoydoydotroyd6odo6eoyeoydtodyodo6do55od5od5odo5dtodtofpydypff6

XD

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podryga [215]
So just add 2 1/2 = 2.5and 1 1/4= 1.25 and that will equal, 3.75 cups in other words that will equal 3 3/4.cups of sugar total.
7 0
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What is the Y-intercept of the graph of the linear function? What is the slope?
xeze [42]

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2 years ago
What's the product of 72100 multiplied by 1.02
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5 0
3 years ago
Read 2 more answers
C. A rational number is a number that can be expressed as a fraction with both the
Dmitriy789 [7]

Answer:

Step-by-step explanation:

Rational expressions are bascially an expression where one polynomial is divided by another.  And a polynomial is a series of terms like ax^b added together, where the exponents, what I labeled as b, need to be positive integers.

6 0
2 years ago
Find the equation of the parabola that has zeros of x = –1 and x = 3 and a y-intercept of (0,–9). Question 1 options: A) y = 3x2
andrey2020 [161]

Answer:

A

Step-by-step explanation:

Given the zeros are x = - 1 and x = 3 then the factors are

(x + 1) and (x - 3) and the parabola is the product of the factors, that is

y = a(x + 1)(x - 3) ← where a is a multiplier

To find a substitute (0, - 9) into the equation

- 9 = a(0 + 1)(0 - 3) = a(1)(- 3) = - 3a ( divide both sides by - 3 )

3 = a, thus

y = 3(x + 1)(x - 3) ← expand the factors using FOIL

  = 3(x² - 2x - 3) ← distribute by 3

  = 3x² - 6x - 9 → A

7 0
3 years ago
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