Answer:
D.
ft²
Step-by-step explanation:
Scientific notation of a number is expressed in the following form, ![a * 10^b](https://tex.z-dn.net/?f=%20a%20%2A%2010%5Eb%20)
Where,
a = decimal number (1 ≤ |a| < 10)
b = the power of 10 whereby the scientific notation is equivalent to the original number.
To express 4,356,000 square feet in scientific notation, do the following:
1. Move the decimal point to the left up to the last non-zero digit = a = 4.356
2. Since we moved the decimal point by 6 decimal places, therefore, b = 6
3. Substitute the values of the variables into
Thus:
4,356,000 = 3. Substitute the values of the variables into
a * 10^b
Thus:
4,356,000 = 4.356 * 10^6
9pi/8 = 8pi/8 + pi/8 = pi + pi/8
12 + pi - 9pi/8 = 12 + pi - pi - pi/8
Answer:
The value of x is 144°
Step-by-step explanation:
<em>Let us revise some facts about the circle</em>
- The measure of the circle is 360°
- The length of the circle is 2πr (circumference)
- If the length of an arc is a/b of the circumference (its length = a/b ×2πr), then the measure of the arc is also a/b of its measure (its measure = a/b × 360°)
- The measure of any central angle equals the measure of its subtended arc
<em>In the given question</em>
∵ A is the center of the circle
∴ Angle x is a central angle subtended by arc BC
∴ The value of x = the measure of arc BC
∵ The length of the arc BC is 2/5 of the circumference of the circle
∴ The measure of arc BC is 2/5 of the measure of the circle
∵ The measure of the circle = 360°
∴ x = 2/5 × 360°
∴ x = 144°
The value of x is 144°
6s + 18t + 3 w = 3 • (2s + 6t + w)
Answer:
$0.68
Step-by-step explanation:
To find the original price of the bracelet, write a proportion. $0.72 is the amount after a 6% tax rate. This means you paid 6% on the original price.
![\frac{0.72}{y}=\frac{106}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B0.72%7D%7By%7D%3D%5Cfrac%7B106%7D%7B100%7D)
Find y by cross multiplying numerator and denominator of each fraction.
0.72(100) = 106y
72 = 106y
0.679 = y
0.68 = y