The unit cm2 is used to measure:
A.)mass
B.)area
C.)volume
D.)length
Answers
To measure mass, you'd use kilograms, or any other variation of gram. Volume is measured in cm3 or any other variation of cubic meter. Length is measured in centimeters, without the square or the cube.
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Please help me on this
Find the simplified form of (t^4/10y^4)^-4
Simplify the Following: 3√3 (5 + 3√2 )
Sandy and Alex are married, with no dependents. They wish to file a joint tax return. Both of them work, but their combined salaries only put them at a slightly above-average income. They would also like to deduct interest paid on their student loans. Recommend an appropriate 1040 form for Sandy and Alex to fill out.. a.. 1040. b.. 1040-EZ. c.. 1040-2. d.. 1040-A.
x^2 + 2x = 42
x^2 + x + 42 = 0
x^2 + 2x + 42 = 0
Answers
Answer:
The correct answer is x^2 + x = 42.
Step-by-step explanation:
First, we need to declare the unknown, as usual we will use x for the number. Then, the square of the number will be x^2. Following the order of the statement we have that x + x^2 =42. Here we have ‘‘translated’’ the term the sum in the mathematical operation of addition. Moreover, we convert the fact that the sum of a number and its square is 42 in a equality. This is the explanation of the equation x + x^2 =42.
Finally, using that the addition is commutative we have that x^2+x=42.
sum indicates addition
a number = x
it's square = x^2
Answers
2/3x-5=3/4
Answers
Answer:
Step-by-step explanation:
The best way to do this problem is to find the lowest common denominator.
2/3 : 3*2/(3*3)
3/4 : 3*3 / 3*4
Notice what you have done. You have multiplied both denominators by something that gets rid of the denominators, or will when you multiply by 4 * 3 = 12
So multiply the equation by 12
(2/3 x- 5 = 3/4 ) 12
8x - 60 = 9 Add 60 to both sides
8x - 60 = 9 Combine
8x = 69 Divide by 8
x = 69/8
x = 8 5/8
line y= 2x - 3
Answers
The required point for the given line is (0, -3). The correct option is (D).
What is a linear equation?
A linear equation in two variable has the general form as y = ax + by + c, where a, b and c are integers and a, b ≠ 0.
It can be represented as a straight line on a graph.
The equation of the given line is y = 2x - 3.
In order to find the point lying on it, consider each of the options one by one as follows,
(a) (2 , 3)
Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,
LHS = y
= 7
RHS = 2x - 3
= 2 × 2 - 3
= 1
Since, LHS ≠ RHS, the given point is not the solution.
(b) (-2, -1)
Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,
LHS = y
= 7
RHS = 2x - 3
= 2 × -1 - 3
= -6
Since, LHS ≠ RHS, the given point is not the solution.
(c) (4, 1)
Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,
LHS = y
= 4
RHS = 2x - 3
= 2 × 1 - 3
= -1
Since, LHS ≠ RHS, the given point is not the solution.
(d) (0, -3)
Substitute x = 2 and y = 3 in the given equation to obtain LHS and RHS as,
LHS = y
= -3
RHS = 2x - 3
= 2 × 0 - 3
= -3
Since, LHS = RHS, the given point is the solution.
Hence, the point (0, -3) is the solution of the given equation.
To know more about linear equation click on,
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f:d->R
f(x)=x at power2/x-1
Answers
need help ASAP
Answers
Answer:
12 cm²
Step-by-step explanation:
A= 1/2ah
h= 6*sin 30° = 6*1/2= 3 cm
A= 1/2*3*8= 12 cm²