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21

Step-by-step explanation:

<SRQ=90°

<SQR=48°

<PSQ=90+48

=138° {exterior angle is equal to the sum of the opposite interior angles}

<RPQ= 180-(138+2a)

where a is angle Q and P

2a=180-138

2a=42

a=21°

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step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation: