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Zepler [3.9K]
3 years ago
12

What is 25 more than 50 as an expression

Mathematics
2 answers:
Aleks [24]3 years ago
6 0
Answer: 75



Step-by-step explanation: 25+50
lesya [120]3 years ago
3 0

Answer:75

Step-by-step explanation: 50 + 25

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Given the center of a circle as ( 1, -1 ) and a point on the circle at (4 , 2). Write the equation of the circle. *
Andru [333]

Answer:

(x − 1)² + (y + 1)² = 18

Step-by-step explanation:

Equation of a circle is:

(x − h)² + (y − k)² = r²

where (h, k) is the center and r is the radius.

The center is (1, -1), so plugging that in:

(x − 1)² + (y + 1)² = r²

A point on the circle is (4, 2), so plugging that in:

(4 − 1)² + (2 + 1)² = r²

18 = r²

Therefore, the equation is:

(x − 1)² + (y + 1)² = 18

7 0
3 years ago
Please answer 6 and 7
nexus9112 [7]
Number 6 is 15 7 is 3
5 0
3 years ago
20 pts<br> pls help you might find this easy idk
Hitman42 [59]

Answer:

-5

Step-by-step explanation:

We look at the number line and see where the dot is placed and that us is our answer

5 0
2 years ago
A flu has hit a city and the percentage of a population with the flu, t days after the disease arrives is approximated by f(t)=1
nika2105 [10]
1) To calculate maximum of f(t) function we first need to find derivative of it:
f(t)' = 10(e^(-t/8) + t*e^(-t/8)*(-1/8)) = 10(e^(-t/8) -t/8*e^(-t/8)) = 10e^(-t/8)(1-t/8)

the condition is:
f(t)' = 0 that means:
0 = 10e^(-t/8)(1-t/8) 
10t/8*e*(-t/8) = 10*e^(-t/8)
t/8 = 1
t = 8

The answer is 8 days.

2) that percent we will get simply by expressing t=8 in our equation.
f(8) = 10*8*e^(-1) = 80/e = 29.43%
4 0
3 years ago
CAN SOMEONE HELP ME PLEASE
Karo-lina-s [1.5K]
151 because the a and the b are that number so the other number would need to add up so the answer is 151
8 0
2 years ago
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