Answer:
C 2(z+3)
Step-by-step explanation:
z+(z+6)
Combine like terms
2z+6
We can factor out a 2 from each term
2(z+3)
<span>9 + (-4) - 6
<em>[open the bracket, +(-) = - ]</em>
</span>= 9 - 4 - 6
<em>[Both operations required are -, work from left to right]</em>
= 5 - 6
= - 1
Answer:
∠4 = 104
Step-by-step explanation:
Angles 3 and 4 are supplementary (add up to the sum of 180°) so we can say:
∠3 + ∠4 = 180
76 + ∠4 = 180
∠4 = 180 - 76
∠4 = 104
Hope this helps!
Answer:
6
Step-by-step explanation:
5+5=10, so 4+6=10
Answer:
The probability that the teacher calls upon a boy is, 0.5714.
Step-by-step explanation:
The data provided is:
Boys Girls Total
Wilmette 11 7 18
Winnetka 5 4 9
Glencoe 4 4 8
__________________________
Total 20 15 35
The total number of students is, <em>N</em> = 35.
The number of boys in the class is, <em>n</em> (B) = 20
The probability of an event <em>E</em> is:
Compute the probability of selecting a boy as follows:
Thus, the probability that the teacher calls upon a boy is, 0.5714.