Answer:
yes
Step-by-step explanation:
6 times 6 = 36
Answer:
Cost of 1 CD = x = £3
Cost of 1 DVD = y = £7
Step-by-step explanation:
Let us represent:
Cost of 1 CD = x
Cost of 1 DVD = y
i. Form a pair of simultaneous equations to represent these two sentences
2 CDs and 9 DVDs cost £69.
2x + 9y = 69.... Equation 1
2 CDs and 6 DVDs cost £48.
2x + 6y = 48..... Equation 2
ii. Solve the simultaneous equations to find the cost of 1 CD and 1 DVD.
Combining both equations together:
2x + 9y = 69.... Equation 1
2x + 6y = 48..... Equation 2
We substract Equation 2 from Equation 1
3y = 21
y = £7
Solving for x using Equation 1
2x + 9y = 69.... Equation 1
2x + 9 × 7 = 69
2x + 63 = 69
Collect like terms
2x = 69 - 63
2x = 6
x = 6/2
x = £3
Therefore,
Cost of 1 CD = x = £3
Cost of 1 DVD = y = £7
Answer:
Without place values or decimals, this answer is correct numerically, but once you add those in, you find that the answer is actually 0.4
Step-by-step explanation:
The items below discuss each choices and states whether the statements are true or false.
(A) It can be seen from the table that if the value of x is -2 then, the value of y is 6. Therefore, this statement is TRUE.
(B) The term range refers to the values of y that can be the result of substituting any x value to the equation generated from the given data. As per table, it can be seen that the values of y can range from negative infinity to positive infinity so long as the number of real. This statement is TRUE.
(C) The choice says f(5) = -2. This statement is FALSE because it should be written as, f(-2) = 5 given that x is the independent variable and y or f(x) is the dependent variable.
(D) The domain is the range of number that the values of x may take. As per the table, the domain is at -2 to 6. Therefore, this statement is TRUE.
Answer: x2 + 4x + 11
Step-by-step explanation:
(x + 2)2 + 7
(x+2)(x+2) + 7
X2 + 2x + 2x + 4 + 7
x2 + 4x + 11
