☆ The relation between x and y is <u>y</u><u> </u><u>=</u><u> </u><u>a</u><u> </u><u>cos</u><u> </u><u>x°</u><u> </u><u>+</u><u>b</u><u> </u>
Taking 1st condition from the table .
→ x = 0 and y = 9
→ y = a + cos 0° + b
→ 9 = a + cos 0° + b
☆ We know that cos 0° = 1
→ 9 = a(1) + b
<h3>→ a + b = 9. equation 1st </h3>
Now taking other condition
→ x = 90° and y = 1
→ y = a cos 90° + b
→ 1 = a cos 90° + b
☆ We know that cos 90° is 0
→ 1 = a(0) + b
<h3>→ 1 = b </h3>
<u>Putt</u><u>ing</u><u> the</u><u> </u><u>val</u><u>ue</u><u> of</u><u> </u><u>b</u><u> </u><u>in</u><u> </u><u>equation</u><u> </u><u>1</u><u>s</u><u>t</u><u> </u><u>.</u><u> </u>
→ 9 = a + 1
→ <u>a</u><u> </u><u>=</u><u> </u><u>8</u><u> </u><u>.</u><u> </u>
<u>Now</u><u> </u><u>taki</u><u>ng</u><u> the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>x</u><u> </u><u>acc</u><u>ording</u><u> to</u><u> the</u><u> </u><u>ques</u><u>tion</u><u> </u><u>.</u>
☆ x = 45 °
→ y = 8 ( cos 45°) + 1
☆ We know that cos 45° is 1/√2
→ y = 8(1/√2) + 1
→ 8 = 4×√2×√2
<h3>y = 4√2 +1 </h3>
So the answer is <u>4</u><u>√</u><u>2</u><u>+</u><u>1</u><u> </u>
On the presumption that it is a cubic die, on average you will not gain nor lose any money. Out of the six faces, 1/3 of them are a 5 or a 2. So 1/3 of the time, you will gain 3$, but will lose 1$ from the initial payment. 1/3 of 3$ is 1$, so on average, you will gain 1$, while losing 1$.
Another way of looking at it is to take the possible out comes, and add the gains/loses, and you will come up with 0$.
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Related Questions (More Answers Below)
Answer:
c = -3
Step-by-step explanation:
Multiply all terms by the same value to eliminate fraction denominators

Cancel multiplied terms that are in the denominator

Multiply the numbers

Add 11 to both sides of the equation

Simplify

Divide both sides of the equation by the same term

Simplify

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