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denis-greek [22]
3 years ago
8

The equation of a circle is x2 +y2 =81 what is the diameter of the circle

Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0

Answer:

pretty sure it's 9.

Step-by-step explanation:

square root of 81 is 9. 3 is its radius.

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7900 dollars is placed in an account with an annual interest rate of 5.5%. How much will be in the account after 11 years, to th
Lady bird [3.3K]

Answer:

\$12,679.50

Step-by-step explanation:

we know that

The simple interest formula is equal to

A=P(1+rt)

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=11\ years\\ P=\$7,900\\r=5.5\%=5.5/100=0.055

substitute in the formula above

A=7,900(1+0.055*11)

A=7,900(1.605)

A=\$12,679.50

4 0
3 years ago
Read 2 more answers
Please help me with this
Rudik [331]

Answer:

  x = 18

Step-by-step explanation:

The parts of the triangles are proportional, so you can write ...

  2x/80 = 27/60

Multiply by 120:

  3x = 54

Divide by 3:

  x = 18

3 0
3 years ago
If ABC is reflected across the y-axis, what are the coordinates of A?
quester [9]

Answer:

The answer is option A

Step-by-step explanation:

Reflection in the y axis is

(x , y) → ( - x , y)

The coordinates of A are ( 2, -5)

When it's reflected in the y axis it becomes

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Hope this helps you

4 0
3 years ago
Two standard 6 sided dice are rolled. One is purple and one is green. What is the probability that sum of the two dice on a roll
lana [24]

Answer:

1/6

Step-by-step explanation:

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6 + yellow result = 7

yellow result = 1

So the yellow die needs to roll a 1, over a total of 6 possibilities, so the probability is 1/6

5 0
3 years ago
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andrew-mc [135]
90(tan26) + 1.65 = about 107.7378 meters
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3 years ago
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