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3 years ago

2 Write 3 x 10 in standard notation.

Mathematics

1 answer:

Zina [86]3 years ago

5 0

Answer:

Step-by-step explanation:

3 x 10 = 30

add the 0 from ten to 3 and you get 30

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What logarithmic function represents the data in the table?

alina1380 [7]

216 =6^3
1,296 = 6^4
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log x = log 6^f(x) = f(x)log 6
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3 years ago

Read 2 more answers

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Firdavs [7]

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3 years ago

If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Studentka2010 [4]

A number is :

$x$

_________________________________

Three quarters of it means :

$\frac{3}{4}x \\$

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Decrease by 20 means :

$\frac{3}{4}x - 20 \\$

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Equals to 82 means :

$\frac{3}{4}x - 20 = 82 \\$

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What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$\frac{3}{4}x - 20 = 82 \\$

Plus sides 20

$\frac{3}{4}x = 82 + 20 \\$

$\frac{3}{4}x = 102 \\$

Multiply sides by 4

$3x = 102 \times 4$

Divided sides by 3

$x = \frac{102 \times 4}{3} \\$

$x = \frac{102}{3} \times 4 \\$

Simplify

$x = 34 \times 4$

$x = 136$

So that number is 136 .

_________________________________

And we're done.

Thanks for watching buddy good luck.

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3 years ago

Calculate 8.93 x 104 times 4.2 x 106 by using scientific notation. Write answer in scientific notation. (round to the ten thousa

Andreas93 [3]

I think the answer is 4.13466144•10^5

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3 years ago

Alex is creating an outdoor structure out of two 12 foot boards. The boards must have an angle of elevation

Whitepunk [10]

Answer:

5.0 ft - 5.6 ft

Step-by-step explanation:

Given that the structure is to be made using two 12 foot boards, then we expect the total perimeter to be equal to (2*12)= 24 ft.

Using the angle of elevation, 40° and the width of 8 ft then you can apply the formula for tangent of a triangle where ;

Tan α = opposite side length/adjacent length

Tan 40°= h/8

h= 8 tan 40° = 6.71 ft

Applying the cosine of an angle formula to find the length of the sliding side

Cosine β = adjacent length /hypotenuse

Cosine 40°= 8/ sliding side length

sliding side length = 8/cosine 40° =10.44 ft

Checking the perimeter = 10.44 +8+6.71= 25.15 ft

This is more than the total lengths of the boards, so you need to adjust the height as;

24 - 18.44 = 5.56 ft ,thus the height should be less or equal to 5.56 ft

h≤ 5.6 ft

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3 years ago

2 Write 3 x 10 in standard notation.​

2 Write 3 x 10 in standard notation.