No I'm 99% sure it's wrong
Answer:
Step-by-step explanation: 3a-5b= 3(7)-5(4)
=21-20
=<u>1</u>
7-3a+5a+15=7-3(7)+5(7)+15
=7-21+35+15
=-14+50
=<u>36</u>
15a^2-17(bc)^2=15(7)^2-17(4)(-3)^2
=105^2-204^2
=210-408
=<u>-198</u>
Answer:
First angle would be 31°, second angle would be 59°
Step-by-step explanation:
You can use the equation 90° = a + (2a - 3°), where a is the measure of your smaller angle.
simplify:
90° = 3a - 3°
93° = 3a
31° = a
let your second angle equal (2a - 3°)
(2(31°) - 3°) = 59°
Answer:
Whichever one your heart desires
Step-by-step explanation:
Answer: 5.5 + (-5.5)=0 this making the opposite of positive 5.5, (-5.5).
(Let me know if this helped, I hope I didn’t make a mistake)
Step-by-step explanation:
example, the additive inverse of the positive number 5 is -5. That's because their sum, or 5 + (-5) = 0
