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3 years ago

85 x + 1.09 = 96.90 i need help

Mathematics

1 answer:

alexandr1967 [171]3 years ago

8 0

Answer:

x = 1.13

Step-by-step explanation:

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Find the value of the variable. If your answer is not an integer, leave it in simplest radical form.

AlekseyPX

Answer:

$\frac{5\sqrt{2} }{2}$

Step-by-step explanation:

$x: \text{opposite side of the angle of 45\º}$

$5: \text{hypotenuse of the right triangle}$

$\sin(\theta)=\frac{\text{opp}}{\text{hyp}} \Rightarrow \sin(45\º)=\frac{x}{5}$

$\text{Once }\sin(45\º)=\frac{\sqrt{2} }{2}$

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You can just remember that 5 is the diagonal of a square of side length x.

$5=x\sqrt{2} \Rightarrow x=\frac{5}{\sqrt{2} } \Rightarrow x=\frac{5}{\sqrt{2} } \cdot \frac{\sqrt{2} }{\sqrt{2} } = \frac{5\sqrt{2} }{2}$

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4 years ago

What is the equation of the line that passes through (1, 3) and (-2,-3)?

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Y=2x+1 is the equation.

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3 years ago

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If x an y are natural numbers then x-y is a natural number what is the converse of this statement

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Answer:

If x-y is a natural number, then x and y are natural numbers.

Step-by-step explanation:

The converse of ...

If P, then Q.

is ...

If Q, then P.

Here, we have ...

P = "x and y are natural numbers"

Q = "x-y is a natural number"

So, the converse is ...

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3 years ago

The length of a rectangle is 12cm and the area is 96cm what is the width

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