When adding decimals with the same sign you.....

Mathematics

2 answers:

PilotLPTM [1.2K]3 years ago

8 0

Answer:

keep the same sign and add the value to each number

Step-by-step explanation:

Stels [109]3 years ago

7 0

Answer:

keep the decemal in the same place? there's not really alot to go by on your question

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A shooting star forms a right triangle with the Earth and the Sun, as shown below:

STatiana [176]

Answer:

- The scientist can use these two measurements to calculate the distance between the Earth and the Sun by applying one of the trigonometric functions: Cosine of an angle.

- The scientist can substitute these measurements into $cos\alpha=\frac{adjacent}{hypotenuse}$ and solve for the distance between the Earth and the Sun.

Step-by-step explanation:

Let's assume that the right triangle formed is like the one shown in the figure attached, where "d" represents the distance between the Earth and the Sun.

Then:

The scientist can use only these two measurements to calculate the distance between the Earth and the Sun by applying one of the trigonometric functions: Cosine of an angle.

The scientist can substitute these measurements into $cos\alpha=\frac{adjacent}{hypotenuse}$ , and solve for the distance "d".

Knowing that:

$\alpha=x\°\\adjacent=d\\hypotenuse=y$