4 years ago

Evaluate the following expression using the values given:

Mathematics

1 answer:

abruzzese [7]4 years ago

3 0

-a^2 - 3b^3 + c^2 + 2b^3 - c^2 = -a^2 - b^3 = -(3)^2 - (2)^3 = -(9) - 8 = -9 - 8 = -17

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How do I solve this please? Can SOMEONE please help me this and the ones Iposted on my page.

vagabundo [1.1K]

Answer: $\dfrac{15}{64}$

Step-by-step explanation:

Given

Inside radius of figure $r_1=\frac{14}{2}=7\ ft$

Outside radius of figure $r_2=\frac{16}{2}=8\ ft$

Area of outside region is $A_1=\pi (8^2)$

Area of inside region $A_2=\pi (7)^2$

Area of shaded region $A_1-A_2$

Probability that point lies inside the shaded region is

$\Rightarrow P=\dfrac{A_1-A_2}{A_1}\\\\\Rightarrow P=\dfrac{\pi (8^2-7^2)}{\pi 8^2}\\\\\Rightarrow P=\dfrac{64-49}{64}\\\\\Rightarrow P=\dfrac{15}{64}$

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3 years ago

The radius of a circle is 3 feet. What is the circle's area?

seraphim [82]

The area of the circle is 28.26 ft^2

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3 years ago

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Which set of points would result in a slope of 1/4

8090 [49]

Answer:

C) ( 8,2) and (4,1)

The slope of the line

$m = \frac{1}{4}$

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the set of points ( 8,2) and (4,1)

ThesSlope of the line

$m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

$m = \frac{1-2 }{4-8 }= \frac{-1}{-4} = \frac{1}{4}$

The slope of the line

$m = \frac{1}{4}$

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=x_%7B123%7D%20x%5E%7B2%7D" id="TexFormula1" title="x_{123} x^{2}" alt="x_{123} x^{2}" align="a

Vikentia [17]

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3 years ago

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How many solutions will this system of equations have? x - 2y = 24 3x - 6y = 72

Feliz [49]

$x-2y=24 \ \ \ \ \ \ \ \ \ \ \ \ \ | \times (-3) \\
3x-6y=72 \\ \\
-3x+6y=-72 \\
\underline{3x-6y=72 \ \ \ \ \ \ \ } \\
3x-3x+6y-6y=72-72 \\
0=0 \\ 
always \ true \\ \\
\hbox{infinitely many solutions}$

The answer is B.

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4 years ago

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