#66 Dimensions of matrix: The dimensions of a matrix are
[number of rows (across) x number of columns (up and down)]
There is 1 row and 4 columns, hence the dimensions of [1 x 4]
#71: use factor/label conversion method.
480 minutes 1 hour 480 hours 8 hours
* -------------- = -------------- =
60 minutes 60 minutes
#72: common difference is how you get from one number to the next in the sequence. So from 42 to 38, you subtract 4, and the pattern is subtract 4 for the whole sequence. So the common difference <em></em>is -4
#38: The midpoint is the middle of the two coordinates, so imagine when used to find mean by drawing a number line like 1 to 10 and the mean would be 5. What did you do? You added 1 and 10 and divided by 2.
You can use the same method for finding midpoints on the coordinate plane.
The formula for midpoint is <span><span>(<span><span>x1+x</span>2</span>)</span>,<span>(<span><span>y1+y</span>2</span>). So it's (5 + 2) , (8 + 7) which equals (7, 15).
#35: This is the same 3* x^(9*1/5) = 3*x^9/5
Remember square root of a number is the same as that number to the 1/2, and the same with all other roots. The fifth root of x is the same as x to the power of 1/5
#36: This is the same as 36*( x^5*3/2 * y^3*3/2), since you can put the power to each of the numbers almost like the distributive property.
= 36 * (x^15/2 * y^9/2)
Well #20 is <em>extremely</em><em> </em>easy. The solutions are anything that is shaded in the blue
The rightmost question is the same thing as #20. Anything not shaded is not a solution.
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#64: Just like you learned in elementary school, the median is the middle number. The middle number is 10<span>
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I assume you want to solve this equation for b. If that is the case, merely divide both sides of this equation by 5:
5b = -35
--- ----
5 5
Then b = -7 (answer)
Answer:
its 2
Step-by-step explanation:
so 6x2 is 12 and 5x2 is 10
u have to find the gcf of 12 and 10 which is 2 :)
Subtract the width of the towel bar from the width of the door and divide by 2.
70 1/3
- 24 1/4
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You need a common denominator to subtract the fractions. The LCD is 12,so we can rewrite the subtraction using the LCD.
70 4/12
- 24 3/12
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46 1/12
Now you need to divide 46 1/12 by 2.
46/2 = 23
(1/12) / 2 = 1/24
The answer is 23 1/24 cm