47. Reason quantitatively. In the diagram shown, ZA and ZX are right angles.
y
-20
10.803,9)
A(3, 4)
C015, 4)
10
20
- 20
2C-16, -1)
Y-4-6)
- 10
-207
a. Are AA BC and AXYZ right triangles? Explain.
b. Use the Distance Formula to find BC and YZ.
c. Use the Distance Formula to find AB and XY.
d. Do you have enough information to prove that
AXYZ - AABC? Explain.

Write an algebraic expression for the word expression the quotient of c and 8

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)