Find the missing number, if possible. There may be more than one number that works, so find as many as possible. If no number works, write "No number possible."
= 21
A. 21
B.
C. -21, 21
D. -21
Answer: C
Mathematics
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Aviva has a total of 52 coins, all of which are either dimes or nickels. The total value of the coins is $4.25. Find the number of each type of coin.
A. 24 nickels; 28 dimes B. 33 nickels; 19 dimes C. 21 nickels; 31 dimes D. 19 nickels; 33 dimes
Mathematics
Determine whether the graph opens upward or downward.f(x) = 5x2 + 10x + 3
A. Upward B. Downward
Mathematics
Solve the polynomial equation by using the root method.x4 - 125 = 0
A. 5 B. 5, 0 C. 5, -5 D. -5
Mathematics
Graph. -
= 1
A.
B.
C.
D.
Mathematics