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Mazyrski [523]
3 years ago
10

PLEASE HELP

Mathematics
1 answer:
GuDViN [60]3 years ago
7 0
The equation of a circle with center (h,k) and radius r is
(x-h)²+(y-k)²=r²
so
given center is (3,-4)
(x-3)²+(y-(-4))²=r²
(x-3)²+(y+4)²=r²
find r² by subsitutiong the point taht it passes through which is (6,5)

so
(6-3)²+(5+4)²=r²
3²+9²=r²
9+81=r²
90=r²
so

(x-3)²+(y+4)²=90 is da equation

4th equation
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An exponential function has a starting value of 13 and a growth rate of 0.78%. Write an equation to model the situation.
Elina [12.6K]

Answer:

The equation that models the situation is A(t) = 13(1.0078)^t

Step-by-step explanation:

Exponential equation:

An exponential equation has the following format:

A(t) = A(0)(1+r)^t

In which A(0) is the starting value and r is the growth rate, as a decimal.

Starting value of 13 and a growth rate of 0.78%.

This means that A(0) = 13, r = 0.0078

Write an equation to model the situation.

A(t) = A(0)(1+r)^t

A(t) = 13(1+0.0078)^t

A(t) = 13(1.0078)^t

The equation that models the situation is A(t) = 13(1.0078)^t

4 0
3 years ago
Combining light term's<br> 4z-(-3z)
____ [38]

Answer:

7z

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help!
s344n2d4d5 [400]

Find the scale of the known sides:

RT is similar to UW

5.4 /9 = 0.6

The smaller triangle is 0.6 times the larger one.

Multiply the length of RS to find UV:

6 x 0.6 = 3.6

The answer is A. 3.6 inches.

6 0
3 years ago
Does anyone know the answer to this
Alex17521 [72]

Answer: y=-x-8

Step-by-step explanation:

x-int: (-8, 0)

y-int: (0, -8)

m=(y2-y1)/(x2-x1)

m=(-8-0)/(0-(-8))

m=-8/(0+8)

m=-8/8

m=-1

y=mx+b

y=-x+b

-8=-0+b

b=-8

y=-x-8

8 0
2 years ago
What is the answer to -7+x=x/10-16
Law Incorporation [45]
We first get rid of the fraction by multiplying both sides by 10

this gives us: -70+10x=x-160

subtract x from both sides

this gives us: =-70+9x=-160

add 70 to both sides

this gives us 9x=-90

divide both sides by 9

this gives us x=-10
4 0
3 years ago
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