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3 years ago

6

Solve to following equation for x: 6(4x +5) = 3(x + 8) +3

1 answer:

ioda3 years ago

7 0

The answer to all your problems is x=-1/7.

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the function h(t)=-16t2+144 represents the height, h(t), in feet, of an object from the ground at t second after its dropped. A

blagie [28]

The domain is the limits of the function. Since time doesnt go negative, start with 0. At time 0, the height is

-16(0)^2 + 144 = 144ft

Then, solve for t to find the upper limit for t, which is when the height is zero (since you're dropping the object).

-16t^2 + 144 = 0
-16t^2 = -144
t^2 = 9
t = sqrt(9)
t = 3

The domain is 0 to 3 seconds.

5 0

3 years ago

Is there a difference between the 80th percentile and the top 80%?

Aleksandr [31]

<span>Actually, yes there is. Being in the 80th percentile means that you are smart than 80% of the people (i.e. out of 100 people, you would be smarter than 80 of them). However being in the top 80% means that you are a part of the 80 smartest people out that same 100. </span>

8 0

2 years ago

Find the missing denominator or numerator of 1/2 = /4

Jet001 [13]

Simply cross-multiply about,

$\bf \cfrac{1}{2}=\cfrac{x}{4}\implies 4\cdot 1=2\cdot x\implies 4=2x\implies \cfrac{4}{2}=x\implies 2=x$

6 0

2 years ago

Read 2 more answers

Please help for another 10 points :))

Nadya [2.5K]

Answer:

(-3, 3)

Step-by-step explanation:

You need to find the median of the x value, and then the median of the y value, and that's your point. Good luck. I never liked graphing.

7 0

2 years ago

Read 2 more answers

Please help me please

spayn [35]

Answer:

A. 34°

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

<u>Trigonometry</u>

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] tanθ = opposite over adjacent
Inverse Trig

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Angle θ = <em>x</em>

Opposite leg AC = 24

Adjacent leg CB = 35

<u>Step 2: Solve for </u><em><u>x</u></em>

Substitute in variables [Tangent]: $\displaystyle tanx^\circ = \frac{24}{35}$
Inverse Trig [Tangent]: $\displaystyle x^\circ = tan^{-1}(\frac{24}{35})$
Evaluate: $\displaystyle x = 34.439^\circ$
Round: $\displaystyle x \approx 34^\circ$

4 0

2 years ago