(-x³ +3x +4) -(2x³ +7x² -9) = -x³ +3x +4 -2x³ -7x² +9 . . . . eliminate parentheses
= x³(-1-2) +x²(-7) +x(3) +(4+9)
= -3x³ -7x² +3x +13 . . . matches the second choice.
the Answer C: 4
Step-by-step explanation:
Answer:
Ummmm my answer was deleted and idk why so im just gonna repost what i said cause i think it was a bug or smth. Answer is 3h
Step-by-step explanation:
Together Clare and Kiran are walking to each other at 8mph so you do 24 divided by 8 and get three so three hours
Translation from Google
the area of a rectangle measures 15 square units. if one side of a rectangle is 3.75 units long how much unit is the perimeter of the rectangle?
Answer:
15.5 unidades
Step-by-step explanation:
Area of rectangle is given by the product of its length and width and expressed as
A=lw
Where l is length, w is width and A is area.
Similarly, perimeter is given by
P=2(l+w)
Given that A=15 and w=3.75
15=3.75l
l=15÷3.75=4 unidades
Now perimeter will be
P=2(4+3.75)=2(7.75)=15.5 units
.5-.625, C=.5625 therefore C would be the answer. I found this by taking all of the fractions and dividing the numerator by the denominator and then lining up all of the decimals till one worked out.
Enjoy!=)