A group of related facts that use the same number is a fact family
Answer:
C is a letter on the alphabet
Step-by-step explanation:
you havent included any pictures so i dont know what you mean
Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Solve for </u>
<u> in the 1st equation:</u>
<u>Substitute the value of </u><u> into the 2nd equation and solve for </u>
<u>:</u>
<u>Substitute the value of </u><u> into the 3rd equation and solve for </u>
<u>:</u>
<u>Plug </u><u> into the solved expression for </u><u> and evaluate to solve for </u><u>:</u>
<u>Plug </u><u> into the solved expression for </u><u> and evaluate to solve for </u><u>:</u>
Therefore:
Answer:$48.00
Step-by-step explanation:(80 x 40)/100 = $32.00
80 - 32.00 = $48.00
Answer:
DE = 13.4 cm (to 1 decimal place)
Step-by-step explanation:
Given: ABCD is a square
BC = AC = 12 cm (opposite sides of a square are congruent)
E is midpoint of BC (given)
BE = EC = 12/2 = 6 cm
CD = AB = 12 cm (opposite sides of a square are congruent)
angle ECD is a right angle (interior angles of a square are 90 deg.)
Consider right triangle ECD
DE = sqrt(EC^2+CD^2) ............. pythagorean theorem
= sqrt(6^2+12^2)
= sqrt ( 36+144 )
= sqrt (180)
= 2 sqrt(45)
= 13.416 (to three dec. places)
