Answer:
680
Step-by-step explanation:
the formula to make a triangle is b×h ÷ 1/2.
after using the formula I got 68.
then, I multiplied 68×10.
9514 1404 393
Answer:
(b) 3x^2 +6x+4
Step-by-step explanation:
(6x+7+x^2)+(2x^2-3)
= (1 +2)x^2 +(6)x +(7 -3) . . . . combine like terms
= 3x^2 +6x +4
Answer:
dilation
Step-by-step explanation:
Dilation is the only one of the options in which the figure can change size. The angles stay the same
Answer:
Option (a)
Step-by-step explanation:
This question is incomplete without statements; find the statements as followed,
a). Ricky's claim is incorrect since not all rotations that carry a square onto itself are multiples of 30 degrees.
b). Ricky's claim is incorrect since not all rotations that are multiples of 30 degrees carry a square onto itself.
c). Ricky's claim is correct since any rotation that carries a square onto itself is a multiple of 30 degrees.
d). Ricky's claim is correct since any rotation that is a multiple of 30 degrees carries a square onto itself.
Square ABCD will map onto itself when point A comes to B, C or D by a rotation about the center E with a multiple of measure of angle AEB.
m∠AEB = 90° [Diagonals of a square intersect each other at 90°]
In simpler words, if square ABCD is rotated 90° or it's multiple about the center E, square will overlap itself.
Therefore, Option (a) is correct.
Answer:
322 cubic inches
Step-by-step explanation:
A soccer ball is in the shape of a "sphere".
A sphere has a volume formula of
<em>Since diameter is given, we need to figure out the radius (which is HALF of the diameter)</em>
hence, radius = half of 8.5 = 4.25 inches
We simply plug in 4.25 into r of the formula and figure out the volume:
<em>to nearest cubic inch, the volume is </em><em>322 cubic inches.</em>