Answer:
I'm pretty sure it's B
Step-by-step explanation:
Stacy gets 2 cards each week, so you would multiply 2 cards by every week she volunteers. She started out with three cards, so therefore you would add 3.
Answer:
Option A.
Step-by-step explanation:
Note: The given function should be instead of .
Consider the given function is
We need to find the function which represents a reflection of f(x) across the x-axis.
If a function f(x) is reflected across the x-axis, then the new function is
Using this rule, we get
Therefore, the correct option is A.
Answer:
Step-by-step explanation:The prism has 9 edges; the bases of the prism are triangles; and the prism has 5 faces.
Step-by-step explanation:
The bases of a prism are the faces that are parallel. In this prism, the only faces that are parallel are the two triangles. This means the bases are triangles.
In addition to the two parallel bases, there is a are three faces that join the sides of the bases. This makes a total of 2+3 = 5 faces.
The edges are where the faces meet. There are 3 edges around each base; this is 6. There are also 3 edges connecting the lateral faces; this makes 6+3 = 9 edges.
Answer:
63°
Step-by-step explanation:
Without a diagram, we have to assume that ray BC lies between BA and BD. Then the angle addition theorem tells you ...
m∠ABC + m∠CBD = m∠ABD
(7x -9°) + (6x +27°) = 96° . . . . . . substitute the given angle measures
13x +18° = 96° . . . . . . . . . . . . . . . simplify
13x = 78° . . . . . . . . . . . . . . . . . . . subtract 18°
x = 78°/13 = 6° . . . . . . . . . . . . . . divide by the coefficient of x
Then the angle of interest is ...
m∠CBD = (6x +27°) = 6(6°) +27° . . . . . substitute the value of x into 6x+27°
m∠CBD = 63°