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3 years ago

Pleasssssssssssssssssssssssse help ASAP

Mathematics

1 answer:

serious [3.7K]3 years ago

4 0

Answer:

Yellow = 18 spools of ribbon

Blue = 15 spools of ribbon

Bobby will have 3 more spools of yellow ribbon.

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Someone help please ://////

GarryVolchara [31]

Answer:

+/- 1.5

Step-by-step explanation:

3 0

3 years ago

Find the original price of a pair of shoes if the sale price is $144 after a 25% discount.

k0ka [10]

Answer:

$192

Step-by-step explanation:

1: Subtract the discount from 100% then divide the sale price by this number (100%-25%=75%, $144/75%=$192)

hope this helped

4 0

3 years ago

Read 2 more answers

A biologist is studying the growth of a particular species of algae. She writes the fall inclusion to show the radius of the alg

horrorfan [7]

Answer:

Part A)

A reasonable domain to plot the growth function is:

$0\leq d \leq 12$

Part B)

The y-intercept represents that when the biologist started her study, the radius of the algae was five millimeters.

Part C)

The average rate of change from d = 4 to d = 11 was about 0.11. This means that from the 4th day to the 11th, the radius of the algae grew, on average, at a rate of 0.11 mm per day.

Step-by-step explanation:

The radius of the algae f(d) in millimeters after d days is given by the function:

$f(d)=5(1.02)^d$

Part A)

We know that the radius of the algae was approximately 6.34 mm when the biologist concluded her study. To find the reasonable domain, we can substitute 6.34 for f(d) and solve for d. Therefore:

$6.34=5(1.02)^d$

Divide both sides by five:

$(1.02)^d=1.268$

Take the log of both sides with base 1.02:

$\displaystyle d=\log_{1.02}1.268$

Using the Change of Base Property, evaluate for d:

$\displaystyle d=\frac{\log 1.268}{\log 1.02}=11.9903...\approx 12$

So, the biologist concluded her study after 12 days.

Therefore, a reasonable domain to plot the growth function is:

$0\leq d\leq 12$

Part 2)

The y-intercept of the function is when d = 0. Find the y-intercept:

$f(0)=5(1.02)^{(0)}=5(1)=5$

Since d represent the amount of days after the study had begun, the y-intercept represents the radius of the algae on the initial day.

So, when the biologist started her study, the radius of the algae was five millimeters.

Part 3)

To find the average rate of change for a nonlinear function, we find the slope between the two endpoints on the interval.

We want to find the average rate of change of f(d) from d = 4 to d = 11.

Find the endpoints:

$f(4)=5.4121...\text{ and } f(11)=6.2168...$

And find the slope between them:

$\displaystyle m=\frac{f(11)-f(4)}{11-4}=0.1149...\approx 0.11$

Since f(d) measures millimeters and d measures days, this tells us that, on average, the radius of the algae grew by about 0.11 mm per day from the 4th day to the 11th day.

5 0

2 years ago

If hari buys 20biscuits for Rs 200 and sells it for Rs 100 find the loss

dimulka [17.4K]

Answer:

hdvbn

Step-by-step explanation:

nfshvjjnmmnjjmbm

6 0

3 years ago

Read 2 more answers

What is 1800 in its corresponding exponential form

pav-90 [236]

The formula for exponential form is:

e^x = y

Where, y in this case is 1800, e is exponential, and we are to find e^x.

e^x = 1800

To find for x, we have to multiply both sides with the natural log, ln.

ln (e^x) = ln (1800)

x ln e = ln (1800)

ln e = 1 and by using the calculator,

x = 7.496 = 7.5

Therefore the exponential form of 1800 is e^7.5

ANSWER: $e^{7.5}$

6 0

3 years ago