<u>4 sec²(x) = 8</u>
Divide each side by 4: sec²(x) = 2
Take the square root of each side: sec(x) = + or - √2
We know that sec(x) = 1/cos(x)
So the equation becomes 1/cos(x) = + or - √2
Divide '1' by each side: cos(x) = + or - (1/2) √2
x = <em>45°, 135°, 225°, 315°
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The cost of 4 walnuts is 4/12*33=11
the cost of 8 pounds of chocolate is 8/12*33=22
the cost of 1 pound of walnuts is 11/4= $2.75 and the cost of one pound of 1 pound of chocolate chips is 22/8=$2.75
Answer:
0.10 + 0.10 + 0.10 + 0.10 + 0.10 equal to 5 dimes or a half of dollar.
Step-by-step explanation:
0.10 + 0.10 + 0.10 + 0.10 + 0.10 = 0.50 (half of a dollar)
The anwser to your question is 1 and 5/7
