Answer:
sure whats the question ? :)
Step-by-step explanation:
2: 3 n minus 5
3: 6 n minus 28
4: 19 minus StartFraction 28 Over n EndFraction
Answer:
is the expression with the value of 15 when n = 7
Step-by-step explanation:
To find the expression whose value is 15, substitute the value of n = 7 in each given expression.
Expression 1:
Substitute the value of n & simplify,
Since the value of the expression is 8 which is not equal 15.
Hence expression does not have value of 15 when n = 7.
Expression 2:
Substituting the value of n & simplify,
Since the value of the expression is 16 which is not equal 15.
Hence expression does not have value of 15 when n = 7.
Expression 3:
Substituting the value of n & simplify,
Since the value of the expression is 14 which is not equal 15.
Hence expression does not have value of 15 when n = 7.
Expression 4:
Substituting the value of n & simplify,
Since the value of the expression is 15 which is equal 15.
Hence expression has the value of 15 when n = 7.
3x2 - 2x + 4
3x2 + 6x + 4
7x2 - 2x + 4
t^3 - r + 20 divided by r
Answer:
The value of the expression is, 9
Step-by-step explanation:
Given: The expression
Substitute the value of r=4 and t=2 in above expression to find its value;
Cube: the cube of a number t is its third power, the result of the number multiplied by itself twice. i.e,
Now, solve further we have;
Further, divide the number 20 by 4 we get the result 5 ;
⇒ 8-4+5 = 4+5 =9
Therefore, the value of the expression is, 9.
Answer:
x-intercept of the given line is, (-9, 0)
Step-by-step explanation:
x-intercept says that a line crosses the x-axis
Substitute y = 0 and solve for x.
As per the statement:
An equation of line is given as:
To find the x-intercept:
Substitute y = 0 and solve for x:
⇒-2x = 18
Divide both sides by -2 we get;
x = -9
Therefore, the x-intercept of the line is, (-9, 0)
Answer:
10 minutes
Step-by-step explanation:
60 / 12 = 5
5 *2 = x=10
this means that x = 10