3 years ago

The radius of a circular track is 50 feet. How many feet of fencing

Mathematics

1 answer:

mina [271]3 years ago

6 0

314 feet of fencing

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Solve for x and y in the system of equation 3x²+4y=17 2x²+5y=2 I'll mark brainliest

Novay_Z [31]

Answer:

$x=\pm \sqrt{11} \\y=-4.$

Step-by-step explanation:

$\left \{ {{3x^2+4y=17} \atop {2x^2+5y=2}} \right. \\\\Then\\\\\left \{ {{2 \times (3x^2+4y)=2 \times 17} \atop {3\times(2x^2+5y)=3\times2}} \right. \\\\\left \{ {{6x^2+8y=34 \quad (1)} \atop {6x^2+15y=6\quad (2)}} \right.\\\\(1)-(2) \Rightarrow -7y=28 \Rightarrow y =-4.\\Since \: \: 2x^2+5y=2 \Rightarrow 2x^2=2-5y\\\Rightarrow 2x^2=2+20=22\\\Rightarrow x^2=22:2=11\\\Rightarrow x=\pm \sqrt{11}.$

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3 years ago

If f(x)=5^x+2x and g(x)=3x-6 find (f+g)(x)

azamat

Answer:

(f+g)(x) = 5^x+5x-6

Step-by-step explanation:

f(x)=5^x+2x

g(x)=3x-6

(f+g)(x) = 5^x+2x+3x-6

Combine like terms

(f+g)(x) = 5^x+5x-6

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3 years ago

You will receive $15000 I’m two years when you graduate. You plan to invest this at an annual interest rate of 6.5 percent. How

Crank

You will have $24 824.94 eight years from now.

The formula for the future value (FV) of her investment is

FV =C(1 + r)^n

where C = her initial cash

r = the interest rate

n = the number of years

FV = $15 000(1.065)^8 = $24 824.94

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3 years ago

A Clydesdale horse weighs as much as a Shetland pony and a American Saddlebred horse combined. How much does a clydesdale horse

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Since there are no measurements, a Clydesdale is a Shetland pony and American saddlebred.

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3 years ago

The asymptote of the function f(x) = 3x + 1 – 2 is_________ . Its y-intercept is_____ .

mixas84 [53]

Asymptote is y = -1

y-intercept is (0, -1)

8 0

4 years ago

Read 2 more answers