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lawyer [7]
4 years ago
12

Find the exact value of sin ( 7 π 4 ) using reference angles

Mathematics
1 answer:
Firdavs [7]4 years ago
3 0

Answer:

-1/root2

Step-by-step explanation:

7pi/4 radians is the same as -pi/4 radians

sin(-pi/4) is -sin(pi/4) = -1/root2

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10 more than twice gorans age
Rasek [7]

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2x+10

Step-by-step explanation:

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Which expressions are equal to 10^5? select all answers
12345 [234]

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Step-by-step explanation:

4 0
3 years ago
Talia's gym membership costs $75 a month plus $30 additional for each month she brings a guest. Which equation shows the number
wel

Answer:

75 × 12 + 30m = 990

∴ m = 3

Step-by-step explanation:

Assume the number of months Talia brings a guest to be 'm'.

So the amount of Talia has to pay for guests for one year is $ 30m .

So, <em>total amount of money Talia has pay for one year = (monthly membership cost)×(number of months in a year) + (additional amount for guests)</em>

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∴ The equation which gives you the number of moths she brought guests is:

990 = 75×12 + 30m

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4 0
4 years ago
Using distributive property-2(n+9)
Jlenok [28]

Answer: -2n + -18

Explanation: Let's simplify this problem using the distributive property.

The first thing we want to do is to distribute or multiply the -2 by each of the terms inside the set of parentheses.

So we get -2 (n) + -2 (9) and this simplifies to -2n + -18.

3 0
4 years ago
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