(2-5i)(4+7i)=2(4+7i)-5i(4+7i)=8+14i-20i-35i²
recall that i²=-1,
8-6i+35=43-6i
43-6i is the final answer
Answer:
78
Step-by-step explanation:
Formula is already provided
2pir
2×3×13
<span>the perimeter of the cross section is 16.5 inches.
the perimeter of the cross section is 2*L plus 2*W where L is the length of the cross section and W is the width of the cross section.
since L = 2*W, the perimeter becomes 4*W plus 2*W = 6*W.
16.5 / 6 = 2.75 inches.
W = 2.75 inches.
L = 5.5 inches.
P = 2*L + 2*W = 2*5.5 + 2*2.75 = 11 + 5.5 = 16.5 </span>
Answer:
The answer is 90 songs.
Step-by-step explanation:
Let x be the number she has to transfer, then:
x + 150 =2(210 - x)
x + 150 = 420 - 2x
3x = 420 - 150
3x = 270
x = 90
Answer:
968 - 744 = 224
Step-by-step explanation:
if Fatima's lettuce broccoli and peas all weigh 968 grams when weighed together and her lettuce and broccoli way 744 grams, as shown in the photo, when weighed together you would subtract the weight of the lettuce and broccoli from the weight of the peas, lettuce, and broccoli together.
you would then get 224 as your answer. your number sentence then should be:
968 - 744 = 224
