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emmainna [20.7K]
3 years ago
14

Find the standard form of the equation of the parabola with a focus at (0, -10) and a directrix at y = 10

Mathematics
1 answer:
Sophie [7]3 years ago
6 0

Answer:

y=-1/40x^2 is the answer i just took the test

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6. three kids and four adults
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At 10 am a 6-foot- tall man casts a 4.5 foot shadow. How long a shadow cast by a 50-foot tree?
astra-53 [7]
It should be a 39 foot shadow

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4 years ago
Read 2 more answers
Find the product of (4z^2 + 7z – 8) and (–z + 3).
san4es73 [151]

Answer:

5, 29 will both blank boxes

Step-by-step explanation:

the product of (4z^2 + 7z – 8) and (–z + 3)

(4z² + 7z – 8)(–z + 3)

-z(4z² + 7z – 8) + 3(4z² + 7z – 8)

-4z³-7z²+8z+12z²+21z-24

choose like terms

-4z³-7z²+12z²+8z+21z-24

-4z³+5z²+29z-24

5, 29

8 0
3 years ago
How many different nine player batting orders can be chosen from a baseball team of 16?
lawyer [7]
This problem is basically _{16}P_9

_nP_r = \frac{n!}{(n - r)!}

If I plug in n = 16 and r = 9

\frac{16!}{(16-9)!} = \frac{16!}{7!} = 4151347200

So there are 4151347200 different nine player batting orders that can be chosen from a baseball team of 16 :)
4 0
3 years ago
(picture) Factoring Polynomials: GCF PLEASEE HELP!!!!!
andrezito [222]

GCF is 5m^2 n^2

m^2 has exponent 2  and n^2 has exponent 2

(1) m^5n^5

here there is no 5 so it does not have GCF

(2) 5m^4n^3

m^4 has exponent 4 greater than exponent 2

n^3 has exponent 4 greater than exponent 2

5m^4n^3 have GCF

(3) 10m^4n

10 is 5*2 . it has GCF 5

m^4 has exponent 4 greater than exponent 2

n has exponent 1 less than exponent 2

10m^4n does not have GCF

(4) 15m^2n^2

15 is 3*5 which has GCF 5

m^2 has exponent 2 which is equal to exponent 2

n^2 has exponent 2 which is equal to exponent 2

15m^2n^2 have GCF

(5) 24m^3n^4

24 is 2*2*2*3 does not have GCF

m^3 has exponent 3 greater than exponent 2

n^4 has exponent 4 greater than exponent 4

24m^3n^4 does not  have GCF


6 0
3 years ago
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