All categories

3 years ago

Help me solve this problem please

Mathematics

1 answer:

blagie [28]3 years ago

3 0

Answer:

Step-by-step explanation:

Distributive property 5 is multiplying both n and 3

You might be interested in

If g(x) = 725, which of the following is true?

kotykmax [81]

Answer:

B and D

Step-by-step explanation:

The g(x) = 725 makes no sense to me....

however g(x) = -2x/(x-3) can be solved by plugging x = value into function

a) g(x) = -2x/(x-3)

g(0) = -2(0)/(0-3) = -3

= 0/-3 = 0 ≠ -3 FALSE

b) g(x) = -2x/(x-3) = 1

g(1) = -2(1)/(1-3) = 1

= -2 / -2 = 1 equals 1 TRUE

c) g(x) = -2x/(x-3)

g(2) = -2(2)/(2-3) < g(4) = -2(4)/(4-3)

= -4 / -1 < -8 / 1

= 4 is greater than - 8 FALSE

d) g(x) = -2x/(x-3) both values were already calcuated

g(1) = -2(1)/(1-3) = 1 < g(2) = -2(2)/(2-3) = 4

1 < 4 TRUE

4 0

3 years ago

A new car is purchased for 23900 dollars. The value of the car depreciates at 14.25% per year. To the nearest tenth of a year, h

svp [43]

Answer:

The value of the car will be 6100 dollars in 8.8 years

Step-by-step explanation:

Present value of car = $23900

The value of the car depreciates at 14.25% per year

Let x be no. of years in which the value of the car becomes 6100 dollars

Formula: $N(t)=N_0(1-r)^t$

Substitute the values :

$6100=23900(1-\frac{14.25}{100})^x\\\frac{6100}{23900}=(1-\frac{14.25}{100})^x\\x=8.8$

Hence the value of the car will be 6100 dollars in 8.8 years

7 0

4 years ago

Read 2 more answers

Between grid lines is 1 foot.<br> A. Is 30 feet of fencing enough to enclose the yard?

Flauer [41]

Yes it is enough to enclose the yard

3 0

2 years ago

Help please! I need it done

dmitriy555 [2]

Step-by-step explanation:

General equation of a line in slope intercept form is given by

y = mx+c

where m is slope and c is y-intercept

Here, y = 5x+9

4 0

3 years ago

Researchers recorded that a certain bacteria population declined from 120,000 to 200 in 36 hours. At this rate of decay, how man

quester [9]

Answer: There will 486 bacteria in 31 hours.

Step-by-step explanation:

The population decay in bacteria is exponential.

Exponential function : $y=Ab^x$ , where A = initial population, b multiplication decay factor, t= time:

As per given:

Initial population: $A=120,000$

After 36 hours, population = $120000(b^{36})=200$

Divide both sides by 120,000 we get

$b^{36}= 0.00167$

Taking natural log on both sides , we get

$36\ln b=\ln 0.00167\\\\\Rightarrow\ b=e^{\left(\frac{\ln0.00167}{36}\right)}=0.83724629\approx0.8372$

At x= 31,

$y=120000(0.8372)^{31}=120000\times0.00405234\approx486$

Hence, there will 486 bacteria in 31 hours.

4 0

4 years ago