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myrzilka [38]
3 years ago
12

Evaluate 7y - 2 when y = 9

Mathematics
2 answers:
kotykmax [81]3 years ago
5 0

Answer:

The answer is 61.

Step-by-step explanation:

7(9)-2

63-2

61

Hoochie [10]3 years ago
3 0

Answer:61

7*(9)-2

63-2

61

Hope it's useful

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To solve problem 19, we must remember the order of operations. PEMDAS tells us that we should simplify numbers in parentheses first, exponents next, multiplication and division after that, and finally addition and subtraction. Using this knowledge, we can begin to simplify the problem by working out the innermost set of parentheses:

36 / [10 - (3-1)²]

36 / [10 - (2)²]

Next, we should still simplify what is inside the parentheses but continue to solve the exponents (the next letter in PEMDAS).

36/ (10-4)

After that, we should compute the subtraction that is inside the parentheses.

36/6

Finally, we can solve using division.

6

Now, we can move onto problem 20:

1/4(16d - 24)

To solve this problem, we need to use the distributive property, which allows us to distribute the coefficient of 1/4 through the parentheses by multiplying each term by 1/4.

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Next, we can simplify further by using multiplication.

4d - 6

Therefore, your answer to problem 19 is 6 and the answer to problem 20 is 4d -6.

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3 years ago
For an angle (theta) with the point (5, -12) on its terminating side, what is the value of cosine?
padilas [110]

we are given

(x,y)=(5,-12)

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now, we can find cos

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Step-by-step explanation:

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Step-by-step explanation:

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