Answer:
114cm²
Step-by-step explanation:
divide the 'room' into equal boxes..
3cm×4cm= 12cm²
3cm×4cm=12cm²
9cm×10cm=90cm²
12cm+12cm+90cm= 114cm²
total area is 114cm²
7.2 times 4=28.8-10=18.8
she saves 18.8 dollars per week.
18.8 times 12=225.6
after 12 weeks she has saved 225.6 dollars
225.6 times 0.25=56.4
her grandparents giver her 56.4 dollars
56.4+225.6=282
she has 282 dollars
8 x 3.10 = 24.80
She spent $24.80 all together
Answer:
b the answer that you are looking for this answer is b
Answer:
see below. × signifies a wrong choice; → signifies a correct one
Step-by-step explanation:
× Jorge should graph in the vertical line with values of –4 for the line of reflection. (The line of reflection is horizontal.)
→ Jorge could count how far each pre-image point is from the line of reflection along the perpendicular from the point to the line of reflection.
× Jorge could count how far each vertex of the figure is from the y-axis and count the same distance on the other side. (He could do this pointless exercise, but it has no relation to the problem. The y-axis (x=0) is not the line of reflection.)
→ Jorge will not move any point that lies on the line of reflection. (All points on the line of reflection are reflected to themselves.)
→ Jorge could check his work by seeing if each segment joining a pre-image point with its image has the midpoint on the line of reflection. (This is what is meant by "line of reflection.")
× Jorge could check his work by making sure that the image has the same orientation as the original. (A reflected image as an orientation opposite that of the original, a fact you see every time you look in a mirror.)
