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andrey2020 [161]
3 years ago
5

Write the standard equation of the circle with center (-3, 5) and a diameter of 18.

Mathematics
1 answer:
dmitriy555 [2]3 years ago
4 0
The equation of a circle with center (h, k) and radius r is

(x - h)^2 + (y - k)^2 = r^2

A diameter of 18 means a radius of 9.

(x + 3)^2 + (y - 5)^2 = 81
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Please help me with my question!!
Dmitrij [34]

The question is unclear but I will assume they mean 1/4 and 3 1/2.

Find common denominators.

1/4

3 1/2 -> 3 2/4

Turn into an improper fraction.

3 2/4 -> 14/4

Divide.

14/4 / 1/4

14/4 * 4/1

56/4

14

So, they can make 14 ornaments.

Best of Luck!

6 0
3 years ago
Which system of inequalities is shown?
Yuliya22 [10]

Answer:

B.

Step-by-step explanation:

The horizontal dashed line with shading above is y > 4.

The diagonal line is y > x.

Answer: B.

3 0
2 years ago
I need help with this question please :(
horrorfan [7]

Answer:

C

Step-by-step explanation:

(2^7 \cdot 3^{-5}\cdot 9)^4

Use the Power of a Product Property, where:

(ab)^n=a^nb^n

Therefore:

(2^7 \cdot 3^{-5}\cdot 9)^4\\=(2^7)^4\cdot(3^{-5})^4\cdot(9)^4\\=2^{28}\cdot3^{-20}\cdot9^4

3 0
4 years ago
Write the function below in the form .P=Po^a^t Is this exponential growth or exponential decay? P=2e^-2.2t
Maksim231197 [3]

Answer:

  •   P = 2·0.1108^t
  •   decay

Step-by-step explanation:

The multiplying factor (2) remains the same in any form in which the variable stands alone. The base of the exponential term can be determined by separating the parts of the exponent:

  e^(-2.2t) = (e^-2.2)^t = 0.1108^t

Then the function is ...

  P = 2·0.1108^t

_____

This could also be written as ...

  P = 0.1108^(t-0.3151) . . . . . where the variable does not stand alone in the exponent

7 0
4 years ago
Why is easier to subtract when numbers are written above and bellow each other?
attashe74 [19]

Answer:


Step-by-step explanation:

Brainly User

In my opinion, no. Others may think that when you subtract this way, it is much easier. My way to subtract numbers is below:-


Example: 17 - 11


Take the numbers that seem easy to add.


10 - 10 = 0

7 - 1 = 6

6+0 = 6


Now, we know that 17 - 11 = 6


We could have done it this way:-


  17

-  11

----------

 0 6

-kiara

5 0
3 years ago
Read 2 more answers
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