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ANTONII [103]
3 years ago
10

Sin(x+4)=cos(4x-9) How do you solve this?

Mathematics
1 answer:
goblinko [34]3 years ago
4 0
You have to cancel out the variables and then you plug it into a calculator.
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Four friends are trying to decide what kind of cake to order for a party: cheesecake, chocolate, or yellow. Everyone was asked t
Zepler [3.9K]

Step-by-step explanation:

I think chocolate fairness criterion has been violated because under the unknown voting method the winner was chocolate but upon calling the store they ordered for yellow cake not chocolate

5 0
3 years ago
Dante slices potatoes at a steady pace to make fries. By the time he finishes, he has sliced 102 potatoes in 12 minutes. What is
sveticcg [70]

Answer:

8.5 potatoes per minute

Step-by-step explanation:

3 0
3 years ago
Which numbers are rational numbers that are not integers?<br><br> 0,4,-2,2/3,-1.8,16,3.2,-5/4
Anna [14]

Answer:

-1.8, -5/4, 3.2, 2/3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If a polynomial function f(x) has roots –8, 1, and 6i, what must also be a root of f(x)? A. –6
anyanavicka [17]

Answer:

-6i

Step-by-step explanation:

Complex roots always come in pairs, and those pairs are made up of a positive and a negative version. If 6i is a root, then its negative value, -6i, is also a root.

If you want to know the reasoning, it's along these lines: to even get a complex/imaginary root, we take the square root of a negative value. When you take the square root of any value, your answer is always "plus or minus" whatever the value is. The same thing holds for complex roots. In this case, the polynomial function likely factored to f(x) = (x+8)(x-1)(x^2+36). To solve that equation, you set every factor equal to zero and solve for the x's.

x + 8 = 0

x = -8

x - 1 = 0

x = 1

x^2 + 36 = 0

x^2 = -36 ... take the square root of both sides to get x alone

x = √-36 ... square root of an imaginary number produces the usual square root and an "i"

x = ±6i

6 0
3 years ago
Read 2 more answers
The 70th term of an arithmatic sequence is 121.5 the common difference is 1.5. Find a12. (write a rule to find a12)
Katen [24]

Answer:

a_{12} = 34.5

Step-by-step explanation:

The n th term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a_{70} = 121.5, then

a₁ + (69 × 1.5) = 121.5

a₁ + 103.5 = 121.5 ( subtract 103.5 from both sides )

a₁ = 18

Hence

a_{12} = 18 + (11 × 1.5) = 18 + 16.5 = 34.5

8 0
2 years ago
Read 2 more answers
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