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Harlamova29_29 [7]
2 years ago
13

Geometry question plz help

Mathematics
1 answer:
GarryVolchara [31]2 years ago
5 0

Answer:if it’s a pretest just guess you don’t need to get it right

Step-by-step explanation:

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a cylinder with base are 169π ft^2 and a height twice the radius. what is the lateral area and surface area of the cylinder
Morgarella [4.7K]
Area\ of\ base:A_B=169\pi\ ft^2\\\\A_B=\pi r^2\ \ \ (r-radius)\\\\\pi r^2=169\pi\ \ \ /:\pi\\\\r^2=169\\\\r=\sqrt{169}\\\\r=13\ (ft)\\\\H=2r\to H=2\cdot13=26\ (ft)


lateral\ area:A_L=2\pi rH\\\\A_L=2\pi\cdot13\cdot26=676\pi\ (ft^2)\\\\Surface\ area:A_S=2A_B+A_L\\\\A_S=2\cdot169\pi+676\pi=338\pi+676\pi=1014\pi\ (ft^2)
5 0
3 years ago
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Point Q' (3,2) is the image of Q (6,4) under a translation
maks197457 [2]

x-value= 6-3= 3            Find the x-value difference

y-value=4-2=2              Find the y-value difference

<u><em>*(The Answer)*=</em></u> The translation is the point shifted 3 units to the right and 2 units up.

6 0
3 years ago
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A student creates a triangle with a perimeter of 13 inches. According to the student, the longest side is 9 inches. Explain how
mamaluj [8]

Answer:

The student is wrong because the sum of any two sides of a triangle should be greter than the third side. The length of a single side of a triangle can not be half or more than half of the perimeter of that triangle. And since the given length is more than half of the perimeter , the student is incorrect .

8 0
2 years ago
Plz help me well mark brainliest if correct!!......
Elenna [48]

Answer:

Option C

Step-by-step explanation:

have a great Day

8 0
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There is a bag with only red marbles and blue marbles.
9966 [12]

Answer:

There are 60 marbles in the bag

Step-by-step explanation:

The total number of marbles  times the probability of red marbles = number of red marbles

total * 7/10 = 42

Multiply each side by 10/7

total * 7/10 * 10/7 = 42*10/7

total

60

There are 60 marbles in the bag

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3 years ago
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