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Alchen [17]
3 years ago
9

Can y’all solve this one

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0

(f g)(x) means f(x) * g(x), so plug the value of each function in:

(x+2)(x-4)

And solve by distributing using FOIL:

Firsts: x * x = x²

Outers: x * -4 = -4x

Inners: 2 * x = 2x

Lasts: 2 * -4 = -8

Combine them all together:

x² - 4x + 2x - 8

Combine like terms (the -4x and 2x):

x² - 2x - 8

So the second to last one is correct.

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Drupady [299]

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3 0
3 years ago
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3 years ago
The altitude of a plane is 1200 meters. From a point on the ground, the angle of elevation of an airplane is 25º. What is the di
gtnhenbr [62]

Answer:

2839.4 meters

Step-by-step explanation:

Given that:

Altitude = 1200 m

Using trigonometry :

The distance from point P to the airplane :

Using trigonometric relation :

Sin θ = opposite / hypotenus

Sin θ = altitude / x

Sin θ = 1200 m / x

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x = 1200 / 0.4226182

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8 0
3 years ago
The camp is divided into2 groups. Thereare 14 kids in Camp A and 21 kids in Camp B. If you divided both camps into groups of equ
frez [133]

Answer: 7 students

Step-by-step explanation:

From the question, we are informed that there a camp is divided into2 groups and that there are 14 kids in Camp A and 21 kids in Camp B.

If the camps are divided into groups of equal size, there will be 7 students in a group. This will be gotten from :

Camp A = 14/2 = 7 students

Camp B = 21/3 = 7 students

8 0
3 years ago
2 square root of negative 18
Karo-lina-s [1.5K]

Answer:

8.48528137 simplified is 8.49

Step-by-step explanation:

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