It’s c I think sorry if I’m wrong, I did this lesson long time ago
19 - (1 - 4x) - 9x + 30 = -5x+48
(Don't forget the negativity symbol before the answer, if it isn't visible. It's not fully visible on my screen.)
Answer:
7 donuts at $0.36/donut = $2.49
Step-by-step explanation:
$4.27
------------ = unit cost = $0.36/donut
1 dozen
Then: 7 donuts at $0.36/donut = $2.49
X(x+4)
(x+2)^2-4
(x+4)x
Hope this helps.
Answer:
No Options
∠QOB=45º
Step-by-step explanation:
we have that: point O=Incenter, sides S, Q, R they form right angles with the point O, angle OBC = 15º and angle OCR=30º, find angle QOB
we know that the sum of all the internal angles of a triangle is 180º, so
α =180-30-15-90=45º and β = 180-90-α → β = 180-90-45 =45º,
Finally β=∠QOB=45º