Answer:
Option D.
Step-by-step explanation:
Juanito estimated that 31% of 517 is 204 is estimated wrong because
31% of 517 = 0.31 × 517 = 160.27
Now we will go through all the options.
A. 30% of 520 = 0.30 × 520 = 156
B. 40% of 520 = 0.40 × 520 = 208
C. 30% of 510 = 0.30 × 510 = 153
D. 40% of 510 = 0.40 × 510 = 204
Option D.
Answer:
Ratio
Step-by-step explanation:
Evaluate 2x − 2 for x = 0, x = 1, and x = 2. Question 1 options: A) −1, 0, 2 B) −1, 1, 2 C) 0, 1, 2 D) 1, 2, 4
mixas84 [53]
The value of x in 2^x - 2 when x = 0, x = 1 and x = 2 are -1, 0 and 2 respectively. option A
<h3>Algebra</h3>
2^x - 2
when x = 0
2^x - 2
= 2^0 - 2
= 1 - 2
= -1
when x = 1
2^x - 2
=2^1 - 2
= 2 - 2
= 0
when x = 2
2^x - 2
= 2^2 - 2
= 4 - 2
= 2
Learn more about algebra:
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The slope of the line is 1. Take two points, (-1,0) and (0,1) and use y2-y1/x2-x1 to find the slope. 1-0/0+1= 1/1 = 1.
Answer:
132 cm²
Step-by-step explanation:
This is a composite figure, so we want to find the area of the top rectangle and the bottom trapezoid and then add those together.
The area of a rectangle is denoted by: A = lw, where l is the length and w is the width. Here, the length is l = 4 and the width is w = 7, so the area is:
A = lw
A = 7 * 4 = 28 cm²
The area of a trapezoid is denoted by: A = , where b1 and b2 are the bases and h is the height. Here, the two bases are 7 and 19 and the height is h = 8. So, the area is:
A =
A = cm²
Add these together:
28 + 104 = 132 cm²