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3 years ago

Circumference of the circle is 2.54 what's the area

Mathematics

1 answer:

Rudik [331]3 years ago

3 0

A= π r^2, and we don't know r, so we'll have to use r = √C/π.

√C is and infinite number, and the square root of
π is an infinite number, so this problem is impossible.

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Please help due tmr I also have 2 more questions!

Marina CMI [18]

Answer:

Step-by-step explanation:

n = 17

n - 7 = 10

Carry over the - 7

n = 7 + 10

n = 17

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3 years ago

Let a, b, c, and d be real numbers with a, c 6= 0. Prove that the lines y = ax+b and y = cx + d have the same x-intercept if and

Monica [59]

Step-by-step explanation:

We have got the lines :

$y=ax+b\\y=cx+d$

Both lines intercept the x-axis in the point :

$I = (i_{1} ,i_{2})$

In all point from x-axis the y-component is equal to 0.

$I=(i_{1},o)$

We replace the I point in the lines equations:

$0=a(i_{1})+b \\0=c(i_{1})+d$

From the first equation :

$0=a(i_{1})+b \\-b=a(i_{1})\\i_{1}=\frac{-b}{a}$

From the second equation :

$0=c(i_{1})+d\\ -d=c(i_{1})\\i_{1}=\frac{-d}{c}$

Then $i_{1}=i_{1}$

Finally :

$\frac{-b}{a}=\frac{-d}{c} \\\frac{b}{a}=\frac{d}{c} \\ad=bc$

y = ax + b and y = cx + d have the same x-intercept ⇔ad=bc

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3 years ago

About 786,700,000 passengers traveled by plane in the United States in 2010. What is

Schach [20]

Answer: 7.867 x 10^8

Step-by-step explanation:

(the “^8” is an exponent of 8)

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3 years ago

X^{2} -25=0 Please help meeee

-BARSIC- [3]

Answer:

$x=5,x=-5$

Step-by-step explanation:

$x^2-25=0$

Add 25 to both sides:

$x^2-25+25=0+25$

$x^2=25$

Square root both sides:

$x=\sqrt{25},\:x=-\sqrt{25}$ (Since a negative number multiplied by itself gives positive, there are two answers.)

$x=5,x=-5$

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3 years ago

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At lift-off, a rocket weighs 40.2 tons, including the weight of fuel. It is fired vertically, and the fuel is consumed at the ra

Thepotemich [5.8K]

Step-by-step explanation:

Below is an attachment containing the solution.

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3 years ago