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3 years ago

X + 3 10 = 7 It’s a building and unbuild problem

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

8 0

Answer:

x=-303

Step-by-step explanation:

Zanzabum3 years ago

5 0

Answer: x=-303

Step-by-step explanation:

x+310=7

We move all terms to the left:

x+310-(7)=0

We add all the numbers together, and all the variables

x+303=0

We move all terms containing x to the left, all other terms to the right

x=-303

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Scilla [17]

Answer:

Step-by-step explanation:

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3 years ago

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34 Deg

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The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and

lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

$f(x) =-0.3x^2 + 2x$

At a horizontal distance of 4 feet, the value of x is 4

i.e. $x = 4$

Substitute 4 for x in f(x).

So, we have:

$f(4) =-0.3(4)^2 + 2(4)$

Evaluate the exponent

$f(4) =-0.3(16) + 2(4)$

Open both brackets

$f(4) =-4.8 + 8$

Add -4.8 and 8

$f(4) =3.2$

Hence, the hose is 3.2 feet above the ground