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densk [106]
3 years ago
9

Plz help! Pretty easy problems!

Mathematics
1 answer:
Julli [10]3 years ago
8 0

Answer:

The first is 9 sq.units

The second is 8 sq units

The third is 180mm squared

Step-by-step explanation:

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1.2 x 10^19 x 5.88 x 10^12
Lapatulllka [165]

9514 1404 393

Answer:

  7.056 × 10^31

Step-by-step explanation:

The applicable rule of exponents is ...

  (10^a)(10^b) = 10^(a+b)

__

  (1.2\times10^{19})\times(5.88\times10^{12})=(1.2\cdot5.88)\times10^{19+12}\\\\=\boxed{7.056\times10^{31}}

As you know, the commutative and associative properties of multiplication let you rearrange the order of the product to any convenient form. Here it is convenient to group the mantissas together and the powers of 10 together.

__

<em>Additional comments</em>

This is a product your scientific or graphing calculator can produce for you. Likely it will display the result in scientific notation because it won't have enough display digits to show you the product any other way. For smaller numbers, you can set the display mode to give you scientific notation.

If you choose to use a spreadsheet to perform this calculation, the numbers would be entered as 1.2e19 and 5.88e12. The result will be something like 7.056e31. You may have to format the display to show 3 decimal places.

7 0
2 years ago
7 over 2 as a mixed number ​
ivanzaharov [21]

Answer:

3 1/2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Select from the value that correctly completes the sentence. The value of x is​
posledela

Step-by-step explanation:

I hope it helps you......

3 0
2 years ago
What’s the area of the triangle ??
qaws [65]

Answer:

7²

Step-by-step explanation:

3*2=6 6/2=3 6-2=4 4*2=8 8/2=4  4+3=7  

6 0
3 years ago
Read 2 more answers
1. In a 30-60-90 triangle, the length of the hypotenuse is 6. What is the length of the shortest
PIT_PIT [208]

Answer:

b. 3

Step-by-step explanation:

In a 30°-60°-90° triangle, the short side is ½ the hypotenuse [the long side is double the short side].

30°-60°-90° Triangles

x√3 → long side

x → short side

2x → hypotenuse

45°-45°-90° Triangles

x → two legs

x√2 → hypotenuse

I am joyous to assist you anytime.

3 0
3 years ago
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