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Luda [366]
2 years ago
10

The circumference of a circle is 20 meters.What is the area

Mathematics
1 answer:
Alex2 years ago
7 0

Answer: the area is 80

Step-by-step explanation:

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Ashley's mother tells her to see 3/5 of her dollar how much is that
oksian1 [2.3K]
Your answer will be D 0.60

A dollar is 1.00 so 0.60 will be 3/5
5 0
3 years ago
Help on this to please
d1i1m1o1n [39]

Answer:

7). up 4 over  4

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Step-by-step explanation:

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3 years ago
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Use the boundedness theorem to determine whether the polynomial function satisfies the given condition. The polynomial f(x) = x4
7nadin3 [17]

Answer:

So f(x) has no real greater than 8. Step - by - step explanation is shown in the attachment.

Step-by-step explanation:

Let f ( x) be a polynomial with real coefficients and with a positive lending coefficient.

If f(x) is divided by x-c and

a) if c>0 and all number in the bottom row of the synthetic division are non negative , then f(x) has no zero greater than c.

b ) if c<0 and the number in the bottom row of the synthetic division alternate in sign  then f (x) has no zero less than c

As shown in the figure

Since the number in the bottom row of the synthetic division alternate in sign

So f(x) has no real greater than 8

6 0
3 years ago
I dont really know how to do soh cah toah. please help me find x.
Ipatiy [6.2K]
First notice that the triangle with sides x,y,a and the triangle with sides z,a+b,x are similar. This is true because the angle between sides x,y in the smaller triangle is clearly 30^\circ, while the angle between sides y,z in the larger triangle is clearly 60^\circ. So the triangles are similar with sides x,y,a corresponding to a+b,z,x, respectively.

Now both triangles are 30^\circ-60^\circ-90^\circ, which means there's a convenient ratio between its sides. If the length of the shortest leg is \ell_1, then the length of the longer leg is \ell_2=\sqrt3\ell_1 and the hypotenuse has length \ell_3=\sqrt{{\ell_1}^2+{\ell_2}^2}=2\ell_1.

Since x is the shortest leg in the larger triangle, it follows that a+b=2x, so a+b=15=2x\implies x=\dfrac{15}2
4 0
3 years ago
Expand (x-2)^7 using binomial theorem
Nastasia [14]

Answer:

x^7-14x^6+84x^5-280x^4+560x^3-672x^2+448x^2-128

Step-by-step explanation:

ends are x^7 and 120^7, and use the therom in the middle

5 0
3 years ago
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