Answer:
Step-by-step explanation:
1.
Base area = πr² = 6²π = 36π in²
Circumference = 2πr = 12π in
Lateral area = 2πrh = 144π in²
Total surface area = 2×36π + 144π
= 216π in²
2.
Base area = πr² = π3.25² = 10.5625π in²
Circumference = 2πr = 6.5π in
Lateral area = 2πrh = 6.5π×6.2 = 40.3π in²
Total surface area = 2×10.5625π + 40.3π = 61.425π in²
Cost of one pretzel is $2.5 and cost of one ice cream is $4.5
Step-by-step explanation:
Let,
Cost of pretzel = x
Cost of ice cream = y
According to given statement;
the cost of a pretzel is $2 less than the cost of some ice cream.
x = y - 2 Eqn 1
five ice creams cost the same as nine pretzels.
9x = 5y Eqn 2
Putting value of x from Eqn 1 in Eqn 2
Dividing both sides by 4
Putting y=4.5 in Eqn 1
Cost of one pretzel is $2.5 and cost of one ice cream is $4.5
Keywords: linear equation, substitution method
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The answer is b because I know trust me =)
Hypotenuse ^2 = base^2 + perpendicular ^2
H^2 = 6^2 + 8^2
H^2 = 36 + 64
H^2 = 100
H = 10
(This is a right angle triangle as 60+30= 90
180-90= 90)