1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anyanavicka [17]
3 years ago
9

Can somebody help me with this one?

Mathematics
1 answer:
Vlad [161]3 years ago
5 0
S = sale price (in dollars)
p = sticker price (in dollars)
Note: the sticker price is what the customer pays after the discount
Another note: This is ignoring any taxes or other fees

We're told that the sale price is the result of taking 10% off the sticker price. This means...

sale price = (sticker price) - (10% of sticker price)
s = p - 0.10*p
s = 1*p - 0.10*p
s = (1 - 0.10)*p
s = (0.90)*p
s = 0.90*p

So the expression for the sale price is 0.90*p where p is the sticker price in dollars.

Note: this means that the sale price is 90% of the sticker price.

----------------------------------------

Now plug in the sticker price p = 80 to find the sale price s
s = 0.90*p
s = 0.90*80
s = 72

The sale price is $72 which is what the customer will pay (if we ignore any taxes or other fees).
You might be interested in
The line y = 0.5x – 4 is reflected in the line y = –2. What is the equation of the image?
sertanlavr [38]
The equation of the image line is y= -0.5x.

When a line is reflected in a certain line, in this case the original line is reflected in the line y=-2, we simply flip it to the other side with respect to the line to which it is reflected. If you are going to graph it, you can see that the distance of the original line (y= 0.5x-4) from the line to which it is reflected (y=-2) and the distance of the reflected line (y=-0.5x) are symmetric.
4 0
4 years ago
I need helpppp! Please respond, i have to submit this soon.
DedPeter [7]

Answer: y=2x+4

Step-by-step explanation:

the line hits at 4 on the y axis and I did 2 rise, 1 run.

7 0
3 years ago
Read 2 more answers
EXAMPLE 2 Prove that 9ex is equal to the sum of its Maclaurin series. SOLUTION If f(x) = 9ex, then f (n + 1)(x) = for all n. If
amm1812

Answer:

To Prove: 9e^x is equal to the sum of its Maclaurin series.

Step-by-step explanation:

If f(x) = 9e^x, then f ^{(n + 1)(x)} =9e^x for all n. If d is any positive number and   |x| ≤ d, then |f^{(n + 1)(x)}| = 9e^x\leq  9e^d.

So Taylor's Inequality, with a = 0 and M = 9e^d, says that |R_n(x)| \leq \dfrac{9e^d}{(n+1)!} |x|^{n + 1} \:for\: |x| \leq  d.

Notice that the same constant M = 9e^d works for every value of n.

But, since lim_{n\to\infty}\dfrac{x^n}{n!} =0 $ for every real number x$,

We have lim_{n\to\infty} \dfrac{9e^d}{(n+1)!} |x|^{n + 1} =9e^d lim_{n\to\infty} \dfrac{|x|^{n + 1}}{(n+1)!} =0

It follows from the Squeeze Theorem that lim_{n\to\infty} |R_n(x)|=0 and therefore lim_{n\to\infty} R_n(x)=0 for all values of x.

THEOREM\\If f(x)=T_n(x)+R_n(x), $where $T_n $is the nth degree Taylor Polynomial of f at a and  $ lim_{n\to\infty} R_n(x)=0 \:  for \: |x-a|

By this theorem above, 9e^x is equal to the sum of its Maclaurin series, that is,

9e^x=\sum_{n=0}^{\infty}\frac{9x^n}{n!}  for all x.

6 0
3 years ago
Can someone show me the steps to solving this <br> (Rationalizing Denominator)
Crazy boy [7]

Answer:

\huge  \purple {\frac{2 \sqrt[3]{6} +  \sqrt[3]{18} }{  6}  }

Step-by-step Explanation:

\huge \frac{2 +  \sqrt[3]{3} }{ \sqrt[3]{6} }  \\  \\  =  \huge \frac{(2 +  \sqrt[3]{3} )}{ \sqrt[3]{6} }  \times  \frac{ \sqrt[3]{6}  \times  \sqrt[3]{6} }{\sqrt[3]{6}  \times  \sqrt[3]{6}}  \\  \\ =  \huge \frac{(2 +  \sqrt[3]{3} )}{ \sqrt[3]{6} }  \times  \frac{ \sqrt[3]{6 ^{2} }  }{\sqrt[3]{6^{2}}  } \\  \\ =  \huge \frac{(2 +  \sqrt[3]{3} )\sqrt[3]{6} }{ \sqrt[3]{6} \times \sqrt[3]{6 ^{2} }}  \\  \\ =  \huge \frac{(2 \sqrt[3]{6} +  \sqrt[3]{3} \sqrt[3]{6} )}{  \sqrt[3]{6 ^{3} }}  \\  \\ =  \huge  \orange{\frac{2 \sqrt[3]{6} +  \sqrt[3]{18} }{  6}  }

6 0
3 years ago
Can someone PLEASE help me I need to find the length of these two ladders, please actually help and don't just guess. If you can
Lina20 [59]

Answer:

29 feet for second ladder

Step-by-step explanation: I dont think first is possibe(decimals), second 21 square+ 20 square= 441+200=881, root of 881 is 29.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write the equation of the given line in slope-intercept form the line perpendicular to the x axis
    10·1 answer
  • The initial number of views for a certain website was 15. The number of views is growing exponentially at a rate of 22% per week
    10·1 answer
  • We bought five 3 3/4 pound bags of bird seed. What is the total weight of the birdseed they bought
    15·1 answer
  • a movie theater has 14 different movies showing. If you want to attend no more than 3 of the movies, how many different combinat
    7·1 answer
  • Rafael and his sister bought snacks at a discount store for movie night. Rafael got 3 boxed candies and 1 bag of chips for $3.82
    12·1 answer
  • What transformation has occurred
    7·1 answer
  • A factory needs to produce 1,800 jars of peanut butter on a certain day.
    9·2 answers
  • The first sequence rule is multiply by 3 starting from 4. The second sequence rule is add 8 starting from 20. What is the first
    11·1 answer
  • How many years will it take for $2000 to double at a simple interest rate of 8%?
    10·1 answer
  • A 96- ounce container of orange juice cost $4.80 at what price should a 128- ounce container be sold in order for the unit rate
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!