Well u do 31.2 x 18 which is 561.6 then u divide by 2 because the formula for a triangle is base x height divided by 2 so It is 280.8
Answer:
2 nickels and 21 dimes
Step-by-step explanation:
0.05N + 0.1D = 2.2
N + D = 23
Let's use the substitution method. Solve the second equation for N.
N = 23 - D
Now where you see N in the first equation substitute N with 23 - D.
0.05(23 - D) + 0.1D = 2.2
1.15 - 0.05D + 0.1D = 2.2
0.05D = 1.05
D = 1.05/0.05
D = 21
Now substitute 21 for D in the second original equation and solve for N.
N + 21 = 23
N = 2
Answer: 2 nickels and 21 dimes
Yes your answer is correct.
The area of the image would be four times (2 * 2) the area of the figure.
<h3>Transformation</h3>
Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>reflection, rotation, translation and dilation.</em>
Dilation is the increase or decrease in size of a figure by a factor k. If point A(x, y) is dilated by factor k, the new point is at A'(kx, ky).
If a figure is dilated by a scale factor of 2, the new image sides would be 2 times the figure sides.
Hence the area of the image would be four times (2 * 2) the area of the figure.
Find out more on transformation at: brainly.com/question/1548871
