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2 years ago

Please help I need this for my homework

Mathematics

1 answer:

Anton [14]2 years ago

5 0

The answer is b.
${a}^{2} + {b}^{2} = {c}^{2}$

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Find measure of side AB round to nearest tenth

vova2212 [387]

Use:

$|AB|^2=|AC|^2+|BC|^2-2|AC||BC|\cos(m\angle ACB)$

We have:

$|AC|=13;\ |BC|=29;\ m\angle ACB=41^o$

$\cos41^o\approx0.7547$

substitute:

$|AB|^2=13^2+29^6-2\cdot13\cdot29\cdot0.7547\\\\|AB|^2=440.9562\\\\|AB|\approx21$

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2 years ago

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sashaice [31]

Answer:

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Does the point (-4, 2) lie inside or outside or on the circle x^2 + y^2 = 25?<br>

Lostsunrise [7]

Given equation of the Circle is ,

$\sf\implies x^2 + y^2 = 25$

And we need to tell that whether the point (-4,2) lies inside or outside the circle. On converting the equation into Standard form and determinimg the centre of the circle as ,

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Here we can say that ,

• Radius = 5 units

• Centre = (0,0)

Finding distance between the two points :-

$\sf\implies Distance = \sqrt{ (0+4)^2+(2-0)^2} \\\\\sf\implies Distance = \sqrt{ 16 + 4 } \\\\\sf\implies Distance =\sqrt{20}\\\\\sf\implies\red{ Distance = 4.47 }$

Here we can see that the distance of point from centre is less than the radius.

Hence the point lies within the circle .

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2 years ago

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What is 27 percent rounded to the nearest percent

Elina [12.6K]

27% is rounded up to 30%

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3 years ago

Each face of a six-sided cube is painted a different color. The cube is rolled twice and a coin is flipped. How many different p

Vaselesa [24]

Answer:

Step-by-step explanation:

There are 6 possible outcomes for the first roll, 6 possible outcomes for the second roll, and 2 possible outcomes for the coin flip. Since all of the events are independent, you can simply multiply these together to get a total of 72 outcomes. Hope this helps!

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3 years ago

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