$U=\pi (r+h) \\\\ 16 \frac{1}{2}= \frac{22}{7}\cdot (r+2) \\\\ \frac{33}{2} : \frac{22}{7}=r+2 \\\\ \frac{\not 33}{2}\cdot \frac{7}{\not 22}=r+2 \\\\ \frac{3}{2} \cdot \frac{7}{2}=r+2 \\\\ \frac{21}{4}=r^{(4}+2^{(4} \\\\ 21=4r+8 \\\\ 4r=21-8 \\\\ 4r=13 \\\\ \boxed{r=\frac{13}{4}}$

4 0

3 years ago

Solve the system of linear equations using matrices.<br> x+6y=7<br> x + 5y=4

Rzqust [24]

Answer:

1+6y= "7y=7"

1+5y= "6y=4"

Step-by-step explanation:

X represents "1" so you replace your "X" with "1" and solve the equation.

3 0

3 years ago

Which of the following statements are true? Select all that apply.

Gnesinka [82]

Answer:

a and c

Step-by-step explanation:

8 0

3 years ago

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Can you help me work out this problem 12t-8t=-52​

Can you help me work out this problem 12t-8t=-52