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Pie
2 years ago
8

2. Find the value of x. Give your answer in simplest radical form. 20 16

Mathematics
1 answer:
Mariana [72]2 years ago
4 0

Answer:

12

Step-by-step explanation:

The Pythagorean theorem shows that 400 or 20² - 256 or 16² = 144 or 12² which means that the other side is 12

x=12

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Quadratic inverse for y=x^2-1
stepan [7]

let's recall that to find the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".

\bf y = x^2-1\implies \stackrel{switcheroo}{x=y^2-1}\implies x+1=y^2\implies \sqrt{x+1}=\stackrel{f^{-1}(x)}{y}

8 0
3 years ago
Which of the following changes will always be true for an exothermic process?
Ivenika [448]
Given that I no not see any explanation in the previos answer, I think you can benefit of this.

Exothermic refers only to the fact that the reaction releases energy in the form of heat when occurs. So, the enthalpy is higher at start and lower and the end.

Seen in this way, you can deduct that the change in enthalpy is negative, which is what the third option says. 
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3 years ago
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Jackson is three times as heavy as Andrew. If the sum of their weight is 360 pounds, find Andrews weight​
Delicious77 [7]
Answer: Andrew = 90 pounds

Explanation:
Assume Andrew weight is X
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5 0
3 years ago
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Tim will buy a pair of shoes that cost $120.He received a 35% discount coupon. Luckily his friend Mario gets an additional 15% d
almond37 [142]

Answer: 55.20$

Step-by-step explanation:

1. Add up 35% with the 15% since Mario is paying for it

2. Multiply 120(the cost without any discount/tax) with the new discount percentage

3. Now with the answer from multiplying subtract it from 120.

4. With the answer, multiply the tax percentage(0.08)

5. Now add It to the discounted price.

6. Round it to the nearest hundredth

3 0
2 years ago
Find m<1 and m<2, showing ALL work AND
mestny [16]

Answer:

see explanation

Step-by-step explanation:

∠1 = 58° ( alternate angles )

∠1 and ∠2 form a straight angle and are supplementary, thus

∠2 = 180° - 58° = 122°

5 0
3 years ago
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