f(x) = x² - 8x + 5 Plug in -1 for all of the x-values
f(-1) = (-1)² - 8 (-1) + 5 Square -1
f(-1) = 1 - 8 (-1) + 5 Multiply -8 and -1
f(-1) = 1 + 8 + 5 Add
f(-1) = 14
Recall that a number with a comma could be written as a fraction as follows: If the number has a certain amount of decimals, you write the fraction as the same number without the comma, divided by 1 followed by as many zeros as decimal
Answer:
Answer is yes
Step-by-step explanation:
yess it's yes
Answer:
PS = 7
k = 9
Step-by-step explanation:
RS = PQ Given
3x - 7 = x - 1 Substitute algebraic terms. Subtract x from both sides
3x-x - 7 = x - 1 - x Combine
2x - 7 = - 1 Add 7 to both sides.
2x - 7+7 = -1+7 Combine
2x = 6 Divide by 2
2x/2 = 6/2
x = 3
Length of PS = x - 1 + x + 3x - 7
Length of PS = 5x - 8
Length of PS = 5*3 - 8
Length of PS = 7
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f(x) = k - x^2
x = 2
f(x) = 5 is the given point
5 = k - x^2 Substitute for x^2
5 = k - 2^2 Expand
5 = k - 4 Add 4 to both sides.
5+4=k-4+4 Combine
k = 9
Answer:
The number of sundaes sold are 36.
Step-by-step explanation:
<em>The cost of each sundae is $2 and the cost of each banana splits is $3.</em>
<em>The number of sundae sold be "x" and banana split be "y".</em>
Thus, the total amount spent is,
= 
The total amount spent is given to be $156. Thus,
156 =
It is also given that, the shop sold 8 more sundaes than banana splits. In equation form,
,
Inserting this value of y in above equation, we get,
156 = 
= 
Thus, x = 36 = number of sundae sold.
