Answer:
Upwards
Step-by-step explanation:
The general form of a quadratic is 
We can tell whether the curve opens upward or downward by the sign of "a"
If
- a is positive, the curve opens upward
- a is negative, the curve opens downward
Reaaranging the given equation:
Here, we see that a is positive, so the curve opens Upward
Answer:
8) $22
9) $33
Step-by-step explanation:
8) $75 to start, has 53 left. The difference of those is what he spent. 75 - 53 = $22
9) 165 divided equally in 5 months:
165 / 5 = 33
Distribute
Combine like terms
x+21/2
Answer:
63.7°
Step-by-step explanation:
supplementary_interier angle 180_116.3=63.7
Change in base of right angled triangle is - 1.5cm/minute
<h3>What is rate of change in area?</h3>
The rate of change in area is defined as the change in with respect to time.
dA/dt = 1/2(BdH/dt + HdB/dt)
where A is area, B is base, H is height
<h3>According to given data:</h3>
A = 1/2×B×H
94 = 1/2×11.5×B
⇒ B = 94×2/11.5 = 16.3cm
Rate of change in base,
dA/dt = 1/2(BdH/dt + HdB/dt)
3.5 = 1/2(16.3×1.5 + 11.5×dB/dt)
dB/dt = 7-24.45/11.5 = -1.5 cm/minute
Thus,base of triangle is decreasing by 1.5cm/minute.
To know more about right angled triangle visit:
brainly.com/question/27682397
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