2 years ago

Evaluate. Answer has to be in scientific notation (8 x 10^6) + (7.3 x 10^4)

Mathematics

2 answers:

Ne4ueva [31]2 years ago

6 0

Answer:

8.0730000*10^6

Anna007 [38]2 years ago

3 0

Answer:

8,073,000

=8.1 × 10⁶

Step-by-step explanation:

The answer is above

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The leaning tower of Pisa currently "leans" at a 4 degree angle and has a vertical height of 55.86 meters. How tall was the lean

Marizza181 [45]

Answer:

56 meters.

Step-by-step explanation:

Please find the attachment.

Let the leaning tower's be h meters tall, when it was originally built.

We can see from our attachment that the side with length 55.86 meters is hypotenuse and h is adjacent side for 4 degree angle.

Since we know that cosine relates the adjacent and hypotenuse of a right triangle.

$\text{Cos}=\frac{\text{Adjacent}}{\text{Hypotenuse}}$

Upon substituting our given values we will get,

$\text{Cos (4)}=\frac{55.86}{h}$

$h=\frac{55.86}{\text{Cos (4)}}$

$h=\frac{55.86}{0.99756405026}$

$h=55.996\approx 56$

Therefore, the leaning tower was approximately 56 meters, when it was originally built.

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3 years ago

4.8 x 10 to the 8th power divided by 1.2 x 10 to the 4th power times 2.2 x 10 to the negative 8th power

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I hope this helps

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IRINA_888 [86]

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