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3 years ago

5

Find the area of the circle with the center C (1, -2) and passes through the point (4, 2). Round your answer to the nearest tent

h.

1 answer:

Firlakuza [10]3 years ago

7 0

Answer:

Step-by-step explanation:

r=√((4-1)²+(2+2)²)=√(9+16)=5

area of circle=π r²=3.14×5²=78.50=78.5

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In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.

Stels [109]

8

Step-by-step explanation:

Critical Path Analysis is presented using the circle and arrow diagrams.
Earliest Start Time = the earliest possible time of starting the activity
An arrow running between two event circles shows the activity needed to complete that task.
All arrows run left to right
Time for doing just task E = 8 hours (as shown in the figure)

7 0

3 years ago

Annie is framing a photo with a length of 6 inches and a width of 4 inches. The distance from the edge of the photo to the edge

Ede4ka [16]

Answer:

Part a) The quadratic function is $4x^{2} +20x-39=0$

Part b) The value of x is $1.5\ in$

Part c) The photo and frame together are $7\ in$ wide

Step-by-step explanation:

Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame

Let

x----> the distance from the edge of the photo to the edge of the frame

we know that

$(6+2x)(4+2x)=63\\24+12x+8x+4x^{2}=63\\ 4x^{2} +20x+24-63=0\\4x^{2} +20x-39=0$

Part b) What is the value of x?

Solve the quadratic equation $4x^{2} +20x-39=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem

we have

$4x^{2} +20x-39=0$

so

$a=4\\b=20\\c=-39$

substitute in the formula

$x=\frac{-20(+/-)\sqrt{20^{2}-4(4)(-39)}} {2(4)}$

$x=\frac{-20(+/-)\sqrt{1,024}} {8}$

$x=\frac{-20(+/-)32} {8}$

$x=\frac{-20(+)32} {8}=1.5\ in$ -----> the solution

$x=\frac{-20(-)32} {8}=-6.5\ in$

Part c) How wide are the photo and frame together?

$(4+2x)=4+2(1.5)=7\ in$

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3 years ago

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Gekata [30.6K]

Step-by-step explanation:

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3 years ago

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3) Determne the largest multiple of 9 less than 200

BaLLatris [955]

Answer:

i think 22

Step-by-step explanation:

9*22=198

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3 years ago

Given: PA = PB, then PC =

svlad2 [7]

Based on the picture, PC = PD

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