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3 years ago

Can someone give me a really specific explanation on how to do this, so I can try to do it myself please? Solve for x.

Mathematics

1 answer:

levacccp [35]3 years ago

7 0

Answer:

x=6

Step-by-step explanation:

we know that the area you are trying to solve for has to be equal to 90 degrees. so you would add the two equations together 5x and (x+54).

STEP ONE

combine like terms and get 6x+54=90

STEP TWO

move get 6x to the right hand side and change the sign, 6x=90-54

STEP THREE

subtract the numbers, 6x=36

STEP FOUR

divide both sides of the equation by 6, x=6

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3 years ago

ITS URGENT (5−x)(2x+7)(x−3)≤0

tresset_1 [31]

Answer:

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Step-by-step explanation:

Basically isolate X,

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3 years ago

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3 years ago

A study found that a driver’s reaction time A(x) to audio stimuli and his or her reaction time V(x) to visual stimuli (both in m

amid [387]

Answer:

The required inequality is $0.0001 x^2 - 0.089 x - 7$ .

Step-by-step explanation:

The given inequalities are

$A(x) = 0.0051x^2 - 0.319x + 15$

$V(x)= 0.005x^2 - 0.23x + 22$

where, x is the driver's age (in years), A(x) is driver’s reaction time to audio stimuli and V(x) is his or her reaction time to visual stimuli, 16 ≤ x ≤ 70.

We need to find an inequality that can be use to find the x-values for which A(x) is less than V(x).

$A(x)$

$0.0051x^2 - 0.319x + 15< 0.005x^2 - 0.23x + 22$

$0.0051x^2 - 0.319x + 15- 0.005x^2 + 0.23x- 22$

Combine like terms.

$0.0001 x^2 - 0.089 x - 7$

where, 16 ≤ x ≤ 70.

Therefore, the required inequality is $0.0001 x^2 - 0.089 x - 7$ .

5 0

4 years ago