Select all expressions that are equivalent to
.
A
7�−2�+8.17x-2x+8.17x−2x+8.1
B
8.45−8�−3.25�8.45-8x-3.25x8.45−8x−3.25x
C
−1.75−7.25�+6.1-1.75-7.25x+6.1−1.75−7.25x+6.1
D
−11.25�+12.2−3.75-11.25x+12.2-3.75−11.25x+12.2−3.75
B
C
3.75+2(-4x+6.1)-3.25
13.2-8x
Enter the value of
�
c when the expression
21.2
�
+
�
21.2x+c is equivalent to
5.3
(
4
�
−
2.6
)
5.3(4x−2.6).
We know that the two expressions are equivalent, so their coefficients must be equal.
The coefficient of x in the first expression is 21.2, while in the second expression it's 5.3*4 = 21.2. Therefore, c = -2.6.
wrong
Let's equate the coefficients of x in both expressions:
For 21.2x in the first expression, the coefficient is 21.2.
For 5.3(4x) in the second expression, the coefficient is 5.3 * 4 = 21.2.
So, the value of c when the expressions are equivalent is 0.
A bag contains 161616 marbles. there are 555 blue, 999 yellow, and 222 red marbles. One marble is selected at random.
Determine whether each statement correctly describes the likelihood of an event based on the given bag of marbles. Select True or False for each statement.
True
False
It is impossible that a green marble will be selected.
It is unlikely that a yellow marble will be selected.
It is certain that a blue marble will be selected.
It is unlikely that a red marble will be selected.
True
False
False
True
Figure
�
A is a scale image of Figure
�
B, as shown.
The scale that maps Figure
�
A onto Figure
�
B is
1
:
7
1
4
1:7
4
1
. Enter the value of
�
x.