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Yuri [45]
3 years ago
8

Write 1,390,000,000 in scientific notation?

Mathematics
2 answers:
Reptile [31]3 years ago
7 0

Answer:

1.39*10^9

Step-by-step explanation:

bazaltina [42]3 years ago
6 0

Answer:

1.39 x 10^9

Step-by-step explanation:

1.39 x 10^9

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otez555 [7]
Scalene triangle would be the correct answer for this question
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A triangle has one leg of 32 inches and one leg of 18 inches. For the triangle to be a right triangle, which best represents the
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Answer:

The option <u> J 36.7 inches</u>  best represents the length of hypotenuse.

Step-by-step explanation:

<u><em>The question is incomplete, so below is the complete question:</em></u>

A triangle has one leg of 32 inches and one leg of 18 inches. For the triangle to be a right triangle, which best represents the length of the hypotenuse?

F 34.2 inches  G 36 inches  H 41.8 inches  J 36.7 inches.

Now, to find the hypotenuse.

Leg 1 = 32 inches.

Leg 2 = 18 inches.

Now, to get the hypotenuse we use pythagoras theorem:

(Leg1)^2+(Leg2)^2=(Hypotenuse)^2

(32)^2+(18)^2=(Hypotenuse)^2

1024+324=(Hypotenuse)^2

1348=(Hypotenuse)^2

Using square root on both sides we get:

36.7=Hypotenuse

Hypotenuse=36.7\ inches.

Therefore, the option J 36.7 inches best represents the length of hypotenuse.

7 0
3 years ago
A roof has the shape of an isosceles triangle with equal sides 8 cm long and base 12 m long. What is the measure of the angle of
victus00 [196]

Answer:

41 degrees to the nearest degree.

Step-by-step explanation:

A line drawn from the vertex and bisecting the base forms 2 right triangles.

The base of one right triangle = 1/2 * 12 = 6 m.

So cos A = adjacent side /hypotenuse   where A is the angle of inclination.

cos A=  6 / 8 = 0.75

m < A = 41.41 degrees.

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Where did b2 come from in Pythagorean theorem
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Answer:

It stands for b squared it’s the second number of the equation that is given to you.

Step-by-step explanation:

Example : 5-7+ 8

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Which three expressions are equavalent to the expression 3x-12-2(x+12)​
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3x-12-2x-24
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