How would you convert 20 square inches to square feet?
144 square inches = 1 square foot
20 square inches = 20/144 = 0.1389 square foot (rounded)
How do you work out the problem -9 plus 7x equals -37?
simple. Set out the problem clearly:
-9 + 7x = -37.
Move the singular number over the equals sign, which makes itself opposite, in this case, the 9 is negative, and when moved over the equals sign, becomes positive.
7x= -37+9
7x= -28
x= -28/7
x = -4
What is the sum of x to the 8 times y to the 7th power squared?
(x8y7)2 = x16y14
(x8y7)2 = x16y14
(x8y7)2 = x16y14
(x8y7)2 = x16y14
What is the syllabus of part 1 general mathematics?
The answer will depend on where you are studying.
You can compute sin(x) manually/numerically using Taylor's Series.
Parabola
If 3a-1 equals 11 what is the value of a?
3a-1=11
Now, you need to keep the equation balanced so whatever you do to one ide of the equation, you MUST do to the other. So the first step is to add 1 to each side of the equation (the equals sign), so we end up with numbers only on one side, and letters only on the other side (or multiples of letters, in this case 3 lots of A...)....
3a-1 = 11
+1 +1
which gives us...
3a+0 =12 or just 3a = 12
Now divide both sides of the equation by 3 to work out what one lot of 'a' is instead of three....
3a = 12
÷3 ÷3
a = 4
How many terms in the equation y equals 7x?
In an equation a term is either a single number or variable.
Your example has 2 terms.
2 x 56 x 5 equals i dont know?
Ok, well let's break this down. So 2 multiplied by 56 is 112. 112 multiplied by 5 is 560. Hope this helps!
What is 4x plus 6 equals -82 -7x in maths?
4x + 6 = -82 - 7X
add 7X to each side
4X + 7X + 6 = -82 -7X + 7X
11X + 6 = -82
subtract 6 from each side
11X + 6 - 6 = -82 - 6
11X = -88
divide both sides by 11
X = -8
check in original equation
4(-8) + 6 = -82 - 7(-8)
-32 + 6 = -82 + 56
-26 = -26
checks
Can someone help with a Math riddle?
yes i can.
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My Boss it trying to stump me and so far succeded.
Here it is:
* * * * *
The digits are 2,3,5,6 and 7 which can form 120 different numbers. The fact that they are not in ascending or descending order reduces that by 2, but that still leaves 118.
And that is excluding the possibility that the non-prime is zero.
How do you graph y equals 3x plus 5?
-- Make a mark at y=5 on the y-axis.
-- Make another mark at the point (1, 8).
-- Connect the two points with a straight edge, and extend the line
as far as you want to in both directions.
How do you find x if 4x3 plus 50x equals 250?
4 x 3 = 12
so 12 + 50x = 250
so 50x=250-12
50x = 238
x = 238/50
x = 4.76
What is the answer to x2-9 equals 0?
x2 - 9 = 0