1. 18
2.8
3.-1
<h3>What is expression?</h3>
An expression is a set of terms combined using the operations +, – , x or ,/.
Given:
1. 22 − 1 (4)
=22- 1*4
= 22-4
= 18
2. 2 + 2 (3)
=2+2*3
=2+6
=8
3. 1 − 2
= -1
Learn more about expression here:
brainly.com/question/14083225
#SPJ1
Step-by-step explanation:
The length of both AB and DC is the same.
19 degrees
We want to know the arc measure for the whole circle, except for DC. So, we can subtract the arc measure of DC from 360 to find DBC. Since we found DC above, all we need to do is subtract.
360 - 19 = 341
DBC = 341 degrees
Hope this helps!! :)
16/9 because (3/4)^-2 simplified is 16/9
Answer:
The answer should be 4.12 hours
Step-by-step explanation:
Sorry if I am wrong.
