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3 years ago

A dinner plate has a circumference of 106.76 cm. What is the area of the dinner plate? Use = 3.14.

1 answer:

3 0

C=2pr, r=c/(2p)

a=pr^2, using r found above we get:

a=p(c^2/(4p^2))

a=(c^2)/(4p), since c=106.76 and we approximate pi as 3.14

a=(106.76^2)/(4*3.14)

a=11612.2176/12.56 cm^2

a≈924.54 cm^2 (to nearest one-hundredth of a square cm)

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Answer:

Step-by-step explanation:

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4 years ago

What is the greatest to least from this equation 5.132 5.123 5.312 5.231<br>

kondor19780726 [428]

Answer:

5.312 (Greatest)

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5.132

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3 years ago

What is the equation of the quadratic function represented by this table?

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

I used logic and took the easy way around this as opposed to the long, drawn-out algebraic way. I noticed right off that at x = -3 and x = -1 the y values were the same. In the middle of those two x-values is -2, which is the vertex of the parabola with coordinates (-2, 4). That's the h and k in the formula I'm going to use. Then I picked a point from the table to use as my x and y in the formula I'm going to use. I chose (0, 3) because it's easy. The formula for a quadratic is

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3 years ago

Whut is 100x100=<br> i need help pls

sladkih [1.3K]

Answer:

10,000

Step-by-step explanation:

100x100=10,000

The two hundreds in this equation have a total of 4 zeros, so you just put those 4 zeros at the end of your answer.

After that, multiply 1 and 1.

That should be 1.

After that, put the 4 zeros behind the 1.

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3 years ago

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If t a n squared θ = 3 /8 , what is the value of s e c θ

TEA [102]

We can use 3 facts:

$\tan{\theta}=\frac{y}{x}$

$\sec{\theta}=\frac{r}{x}$

$x^2+y^2=r^2$

So, to find our x and our y we can do:

$\tan^2{\theta}=\frac{3}{8} \implies \\ \tan{\theta}=\pm{\sqrt{\frac{3}{8}}=\pm\frac{\sqrt{3}}{\sqrt{8}}$ So, now that we know our x and our y we can find our r.

$(\sqrt{3})^2+(\sqrt{8})^2=11 \implies r=\sqrt{11}$

You'll notice, though, that there were two solutions for $\tan{\theta}$ , which means we have a positive and a negative for our x. So:

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3 years ago

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