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3 years ago

30 point for this plz help!! And explain how you got you answer

2 answers:

7 0

The sale price is $7.20. Here are the steps. To find how much 20% is of $9, you must multiply .20 × $9 After that, you end up with $1.80 Take the $1.80 and remove that from the $9 To get a sale price of $7.20

ch4aika [34]3 years ago

4 0

To find the sales price of the DVD, you would multiply the price and sale percent to get the sale price.

You would need to turn 20% into a decimal to multiply it with 9, so you would move the decimal place two times to the left: From 20. to→ .20

In this case: 9 × .20 = 1.8

Then you would subract the sub price by the sales price

9 - 1.8 = 7.2

The sales price of the DVD would be $7.20

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Help! What is the average rate of change of f(x)=x^2+3x+6 over the interval -3 less-than-or-equal-to x less-than-or-equal-to 3?

Makovka662 [10]

Answer:

The average rate of change of the function over the interval is 5.

Step-by-step explanation:

Average rate of change of a function:

The average rate of change of a function f(x) over an interval [a,b] is given by:

$A = \frac{f(b)-f(a)}{b-a}$

Interval -3 less-than-or-equal-to x less-than-or-equal-to 3

This means that $a = -3, b = 3$

$f(x) = x^2 + 3x + 6$

$f(b) = f(3) = (3)^2 + 3(3) + 6 = 9 + 9 + 6 = 24$

$f(a) = f(-3) = (-3)^2 + 3(-3) + 6 = 9 - 9 + 6 = 6$

Average rate of change

$A = \frac{f(b)-f(a)}{b-a} = \frac{24+6}{3-(-3)} = \frac{30}{6} = 5$

The average rate of change of the function over the interval is 5.

8 0

3 years ago

If there is a 70% chance of rain tomorrow and a 50% chance of wind and rain,

enyata [817]

Answer:

71%

Step-by-step explanation:

Conditional Probability: <u>P(A and B)</u>

P(A)

P(A and B): 0.5

P(A): 0.7

=0.5/0.7

=0.71428... (x 100)

4 0

3 years ago

Read 2 more answers

Please help my 10 year old nephew...

trasher [3.6K]

After, thorough research I believe that there are 265 pine trees and 0 elm trees since decidous and semi-decidous do not grow near conifers.

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3 years ago

What should i know about algebra 1 before i start

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Answer:nothin much

Step-by-step explanation:

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3 years ago

Another way to check the sum of 104+34+228+877

vekshin1

We are asked to identify an another way to solve the given problem or this summation 104 + 34 + 228 + 887. We can verify it by doing of performing the summation in a reverse sequence such 877 comes first, then followed by 228, then followed by 34 and lastly added by 104. Therefore, the answer is 877 + 228 + 34 + 104.This is an another way to solve the given problem.

4 0

3 years ago