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
vladimir1956 [14]
3 years ago
12

Please help me plzzzzz

Mathematics
1 answer:
Lena [83]3 years ago
3 0

Answer:

6) B. Reflection over the y-axis, then reflection over the x-axis

7) B. The initial value of the function is the y-intercept of the line, 275

8) A. y = 45 - 6x

Step-by-step explanation:

6) See first attached file :)

7) Option A is incorrect because the rate of change/slope is "-20x" not just "-20." Option C is incorrect because the initial value/y-intercept is $275 and not $2. Option D is incorrect because it implies she doesn't withdraw $20 the first month, which wasn't mentioned in the question. Option B is the only one to apply to the graph. See second attached file for graph reference.

8) The question explains the function "y=6x+45" and that matches all options except for option A.

haha third time for this one

You might be interested in
Two sides of a triangle measure 8 and 13. what represents x, the possible length in inches of the remaining side
Liula [17]

Answer:

the  possible number would be 159 in

Step-by-step explanation:

8 0
3 years ago
What is the slope of the line on the graph
shutvik [7]
The answer to this question is 3,3
8 0
3 years ago
Read 2 more answers
First make a substitution and then use integration by parts to evaluate the integral. (Use C for the constant of integration.) x
e-lub [12.9K]

Answer:

(\frac{x^{2}-25}{2})ln(5+x)-\frac{x^{2}}{4}+\frac{5x}{2}+C

Step-by-step explanation:

Ok, so we start by setting the integral up. The integral we need to solve is:

\int x ln(5+x)dx

so according to the instructions of the problem, we need to start by using some substitution. The substitution will be done as follows:

U=5+x

du=dx

x=U-5

so when substituting the integral will look like this:

\int (U-5) ln(U)dU

now we can go ahead and integrate by parts, remember the integration by parts formula looks like this:

\int (pq')=pq-\int qp'

so we must define p, q, p' and q':

p=ln U

p'=\frac{1}{U}dU

q=\frac{U^{2}}{2}-5U

q'=U-5

and now we plug these into the formula:

\int (U-5)lnUdU=(\frac{U^{2}}{2}-5U)lnU-\int \frac{\frac{U^{2}}{2}-5U}{U}dU

Which simplifies to:

\int (U-5)lnUdU=(\frac{U^{2}}{2}-5U)lnU-\int (\frac{U}{2}-5)dU

Which solves to:

\int (U-5)lnUdU=(\frac{U^{2}}{2}-5U)lnU-\frac{U^{2}}{4}+5U+C

so we can substitute U back, so we get:

\int xln(x+5)dU=(\frac{(x+5)^{2}}{2}-5(x+5))ln(x+5)-\frac{(x+5)^{2}}{4}+5(x+5)+C

and now we can simplify:

\int xln(x+5)dU=(\frac{x^{2}}{2}+5x+\frac{25}{2}-25-5x)ln(5+x)-\frac{x^{2}+10x+25}{4}+25+5x+C

\int xln(x+5)dU=(\frac{x^{2}-25}{2})ln(5+x)-\frac{x^{2}}{4}-\frac{5x}{2}-\frac{25}{4}+25+5x+C

\int xln(x+5)dU=(\frac{x^{2}-25}{2})ln(5+x)-\frac{x^{2}}{4}+\frac{5x}{2}+C

notice how all the constants were combined into one big constant C.

7 0
3 years ago
A laptop is sold for $1274 after a discount of 9%.
chubhunter [2.5K]

Answer:

SP = 1274

Discount 9%

Selling price = MP (100 - d) / 100

1274 = MP (100 - 9) / 100

1) MP = 1400

i) After 5% discount = 1400 x 0.95 = 1330

After 4% discount = 1330 x 0.96 = 1276.80

3 0
3 years ago
If 6 pipes fill a tank in 120 minutes, then 5 pipes can fill it in how many minutes​
Marianna [84]

Answer:

<u>It'll</u><u> </u><u>take</u><u> </u><u>1</u><u>4</u><u>4</u><u> </u><u>minutes</u><u> </u><u>for</u><u> </u><u>5</u><u> </u><u>pipes</u><u>.</u>

Step-by-step explanation:

{ \sf{6 \: pipes = 120 \: mins}} \\ { \sf{5 \: pipes = ( \frac{6}{5}  \times 120) \: mins}} \\  \\  = { \sf{144 \: mins}}

but practically, it seems to be abnormal. if 6 pipes take 120 mins, 5 pipes must takes a time greater than 120 mins cause amount of water flowing to the tank is decreasing.

<em>B</em><em>u</em><em>t</em><em> </em><em>t</em><em>h</em><em>e</em><em>r</em><em>e</em><em> </em><em>i</em><em>s</em><em> </em><em>a</em><em> </em><em>p</em><em>o</em><em>s</em><em>s</em><em>i</em><em>b</em><em>i</em><em>l</em><em>i</em><em>t</em><em>y</em><em> </em><em>t</em><em>h</em><em>a</em><em>t</em><em> </em><em>p</em><em>r</em><em>e</em><em>s</em><em>s</em><em>u</em><em>r</em><em>e</em><em> </em><em>o</em><em>f</em><em> </em><em>w</em><em>a</em><em>t</em><em>e</em><em>r</em><em> </em><em>w</em><em>a</em><em>s</em><em> </em><em>i</em><em>n</em><em>c</em><em>r</em><em>e</em><em>a</em><em>s</em><em>e</em><em>d</em><em> </em><em>f</em><em>o</em><em>r</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>c</em><em>a</em><em>s</em><em>e</em><em> </em><em>o</em><em>f</em><em> </em><em>f</em><em>i</em><em>v</em><em>e</em><em> </em><em>p</em><em>i</em><em>p</em><em>e</em><em>s</em><em>,</em><em> </em><em>t</em><em>h</em><em>a</em><em>t</em><em>'</em><em>s</em><em> </em><em>w</em><em>h</em><em>y</em><em> </em><em>i</em><em>t</em><em> </em><em>t</em><em>a</em><em>k</em><em>e</em><em>s</em><em> </em><em>a</em><em> </em><em>t</em><em>i</em><em>m</em><em>e</em><em> </em><em>l</em><em>e</em><em>s</em><em>s</em><em> </em><em>t</em><em>h</em><em>a</em><em>n</em><em> </em><em>1</em><em>2</em><em>0</em><em> </em><em>m</em><em>i</em><em>n</em><em>s</em><em>.</em><em> </em><em>(</em><em>t</em><em> </em><em><</em><em> </em><em>1</em><em>2</em><em>0</em><em>)</em>

5 0
3 years ago
Read 2 more answers
Other questions:
  • Write a linear equation that has a slope of 1/2 and a y-intercept at the origin.
    7·1 answer
  • How much is 3ft in a 1 yrd
    12·1 answer
  • PLEASE HELP ASAP 10 POINTS AND BRAINLIEST Simplify. 1/4y + 1 1/2 + 2 - 1 3/4y−12
    8·1 answer
  • We want to create a 95% confidence interval to estimate the average yearly income of doctors who earned their degrees from publi
    5·1 answer
  • Does -2(11-12x)=-4(1-6x) does it have one solution or no solution or many solutions
    6·1 answer
  • Mr. Hudkins wants his 6th grade math class to memorize their multiplication facts. He decides to increase the number of facts th
    8·2 answers
  • Simplify 4^3 • 4^5 <br> a 4^8<br> b 16•15<br> c 4^15<br> d 16^8
    6·1 answer
  • What is the perimeter of rectangle JKLM with vertices J (-1,3) k (2,3) and m (-1,-5)
    9·1 answer
  • Find the measure of the angles indicated
    7·1 answer
  • Help pls iready math equation
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!