Answer:
1. D. is Brand B
2. 60 mikes per hour
3. is 40 mins
4. is A. 3/20 u are multiplying
Step-by-step explanation:
0.9 x (12-2) + 0.6
0.9 x (14) + 0.6
12.6 + 0.6
13.2
I hope I helped
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57.55 in base 10 equal in base 2 is 57.55₁₀ = 111001.10001100110₂
Base 10:
It refers the decimal number system.
A number system which uses digits from 0 to 9 to represent a number.
Base 2:
It refers the Binary number system.
A binary number is defined as a number that is expressed in the binary system or base 2 numeral system. It describes numeric values by two separate symbols; 1 (one) and 0 (zero).
Given,
The base 10 number = 57.55
Now we have to convert it into base 2,
So, the conversion will follow the following step in image 1.
Write the Remainders from bottom to top
So, 57₁₀=111001₂
For Decimal Numbers
Refer image 2,
Write the Integer part from top to bottom
55₁₀ = 10001100110₂
Therefore,
57.55₁₀ = 111001.10001100110₂
To know more about Base 10 to base 2 conversion here
brainly.com/question/13384891
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Answer:
x = -4 ±√(7)
or in decimal:
x = -1.35 or -6.65
Step-by-step explanation:
y=x²+8x+9
note x-intercepts occur when y = 0,
Hence, x²+8x+9 = 0 (solve this using your favorite method. We will complete the square)
x²+8x+9 = 0 (rearrange)
x²+8x = -9 (complete the square and add factor to both sides)
x² + 8x + (8/2)² = -9 + (8/2)²
[ x + (8/2) ]² = -9 + (8/2)²
[ x + 4 ]² = -9 + (4)²
[ x + 4 ]² = -9 + 16
[ x + 4 ]² = 7
x+4 = ±√(7)
x = -4 ±√(7)
x = -1.35 or -6.65
We know, Surface area of a Cube = 6a²
Substitute for a = 7.2
Then, SA = 6 * (7.2)²
SA = 6 * 51.84 = 311.04 Ft²
In short, Your Answer would be Option B
Hope this helps!