Find the value of the unknown variable.Find h if A = 
(b + B)h, A = 87 cm2, b = 19 cm, and B = 10 cm.
A. 190 cm
B. 6 cm
C. 72
cm
D. 14
cm
Answer: B
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Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in black on a light gray background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix B for which A + B represents the entire picture becoming one shade lighter.
A. 
B. 
C. 
D. 
Evaluate the expression.
A. 1.18 B. 78.4 C. 0.63 D. 72.11
Solve the problem.The volume V of a square-based pyramid with base sides s and height h is 
If the height is half of the length of a base side, express the volume V as a function of s.
What will be an ideal response?
Provide an appropriate response.Can the following be simplified without first simplifying the individual radical expressions?7
+ 5
A. No B. Yes