Answer:
261 ft²
Explanation:
This entire shape can be divided into one square and four triangles.
Area of square:
Side² = 9² = 81 ft²
Area of four triangles:
4 × 1/2 × base × height
2 × 9 × 10
180 ft²
Total Area:
180 + 81 = 261 ft²
Answer:
+4
Step-by-step explanation:
Subtract a number from the number after it.
6 - 2 = 4
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Asked and answered elsewhere.
brainly.com/question/10192511Knowing that 1+2i is a root, you also know that 1-2i is a root, so one quadratic factor is
(x -1)² -(2i)² = x^2 -2x +5
Long division of the given polynomial by this quadratic gives a quotient of
x² +9
which has roots ±3i.
Then all
the roots are {-3i, 3i, 1-2i, 1+2i}.
Answer:
60
Step-by-step explanation:
Divide the number of questions answered correctly by his percentage
51 / 85 = 0.6
Now multiply that answer by 100 to see how many questions are on the quiz
0.6 x 100 = 60
Check your work by dividing that number by the number he answered correctly
51 / 60 = 0.85
