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3 years ago

3x2+(2y+z3) if x=4, y=5, and z=3

Mathematics

2 answers:

AlexFokin [52]3 years ago

5 0

Answer:

43 or 25

Step-by-step explanation:

Plug all of the numbers into the equation.

(i'm not sure if the 3x2 is a letter or not, so i'll just solve it anyways for both.)

3(4)(2) + (2(5) +(3)(3) = 43

If it's not a letter then

3x2 + (2(5)+3(3)) = 25

gtnhenbr [62]3 years ago

4 0

The answer is 25 trust

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Which step is the most efficient way to find the solution of x + 4 > -8?

den301095 [7]

Answer:

x+4 > -8

x > -8 - 4 (transpose the 4)

x > -12

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3 years ago

In your own words describe the information the range provides for a set of scores.

kifflom [539]

Answer:

Dispersion

Step-by-step explanation:

Given a set of scores {a1, a2, ..., an} ordered in value, the range can be described as the difference between the highest and the lowest value. We can write it as:

range = an - a1

Thus, the range provides information about the dispersion of our set of values. A high range means that the highest and the lowest value are highly separated, on the other hand, a low range mean that there is a little difference between those values.

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3 years ago

if the exchange rate of euro to the us dollar is 1 euro = $1.13, how much would you receive if you wished to exchange 235 euros?

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4 years ago

Read 2 more answers

Use function notation to represent how much the volume of the box (in cubic inches) changes by if the cutout length increases fr

MakcuM [25]

Answer:

Increases 64 times

Step-by-step explanation:

The volume of the box can be calculated using formula

$V=l\cdot w\cdot h,$

where

V = volume,

l = length,

w = width,

h = height

If the length was 0.3 inches, then the volume was

$V_1=0.3\cdot w\cdot h=0.3wh$

When the length became 1.2 inches, then all dimensions became $1.2 :0.3 =4$ times greater, then the volume was

$V_2=1.2\cdot (4w)\cdot (4h)=19.2wh$

The volume increases

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4 years ago

A patient is given a 100-milligram dosage of a drug that decays exponentially at a rate of 11% per hour. The doctor wants to kno

I am Lyosha [343]

Answer:

This is an example of exponential decay (somewhat similar to half-life).

If it decays at 11% per hour we can calculate its half-life by this formula:

half life = [ time • ln (2) ] ÷ ln (beginning amount ÷ ending amount)

where "ln" means natural log

half life =[ 1 hour * .69315] / ln (100 / 89)

half life =[.69315] / ln (1.1235955056)

half life =[.69315] / 0.11653381624

half life = 5.9481 hours

We need "lambda" "λ" (the decay constant) which equals

λ = ln(2) / half-life = .693147 / 5.9481 = 0.1165325062

Now we need a formula for the time required:

time = ln (Nt ÷ N0) ÷ -λ where No = beginning amount (100 milligrams) Nt = ending amount (15 milligrams)

time = ln (15 ÷ 100) ÷ -0.1165325062

time = ln (.15) / -0.1165325062

time = -1.8971199849 / -0.1165325062

time = 16.2797492885 hours

Source: https://www.1728.org/halflif2.htm

Step-by-step explanation:

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3 years ago