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
Oksi-84 [34.3K]
3 years ago
9

HI PLEASE HELPZ I AM REALLY STRUGGLING

Mathematics
1 answer:
garri49 [273]3 years ago
5 0
3x + (2x - 25) = 180
5x - 25 = 180
5x - 25 + 25 = 180 + 25
5x = 205
5x / 5 = 205 / 5
X = 41
Hope that is right, sorry if it’s not
Supplementary means it equals 180 degrees
You might be interested in
What percent is 2.5 of 40
Elina [12.6K]

Answer:

1

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
8. A music store sells used CDs for $9. They buy used CDs for $4. You have $50 to
Marat540 [252]

Answer: 9x+4=50

Step-by-step explanation:

In this case, we're looking at how many you can buy, not how many CD's you own.

7 0
3 years ago
PLEASEEEE help <br> i know i am saying this again
BartSMP [9]

Answer: for the first it is not direct varition while for the second one it i s

Step-by-step explanation:

6 0
1 year ago
Find a compact form for generating functions of the sequence 1, 8,27,... , k^3
pantera1 [17]

This sequence has generating function

F(x)=\displaystyle\sum_{k\ge0}k^3x^k

(if we include k=0 for a moment)

Recall that for |x|, we have

\displaystyle\frac1{1-x}=\sum_{k\ge0}x^k

Take the derivative to get

\displaystyle\frac1{(1-x)^2}=\sum_{k\ge0}kx^{k-1}=\frac1x\sum_{k\ge0}kx^k

\implies\dfrac x{(1-x)^2}=\displaystyle\sum_{k\ge0}kx^k

Take the derivative again:

\displaystyle\frac{(1-x)^2+2x(1-x)}{(1-x)^4}=\sum_{k\ge0}k^2x^{k-1}=\frac1x\sum_{k\ge0}k^2x^k

\implies\displaystyle\frac{x+x^2}{(1-x)^3}=\sum_{k\ge0}k^2x^k

Take the derivative one more time:

\displaystyle\frac{(1+2x)(1-x)^3+3(x+x^2)(1-x)^2}{(1-x)^6}=\sum_{k\ge0}k^3x^{k-1}=\frac1x\sum_{k\ge0}k^3x^k

\implies\displaystyle\frac{x+4x^3+x^3}{(1-x)^4}=\sum_{k\ge0}k^3x^k

so we have

\boxed{F(x)=\dfrac{x+4x^3+x^3}{(1-x)^4}}

5 0
3 years ago
Barbra can walk 3,200 meters in 24 minutes. How far can she walk in three minutes.
lisabon 2012 [21]

Answer:

Step-by-step explanation:

To find how far she can walk in 3 minutes, we need to find how fast she can walk in 1 minutes. We do this by dividing the distance she walked by the time she walked. Lets do so.

3200/24=133.33

She walks 133.33 meters per minute. Now to find her distance in 3 minutes w multiply this number by 3.

133.33*3=400

Barbra walks 400 meters every 3 minutes.

3 0
3 years ago
Other questions:
  • A trapezoid was broken into a triangle and rectangle
    8·1 answer
  • How can Amani use the trend line to check the reasonableness of her answer?
    9·2 answers
  • A bag coatins an equal number of green and bule marbels yoe can divide all thegreen marbles into groups of 12 and yhe bule marbe
    9·1 answer
  • When calculating a loan’s effective rate, if the interest compounds every two months, what value of n do you plug into your equa
    5·2 answers
  • What values of x make the expression (x+4)(x-6) negative
    11·1 answer
  • How many centimeters(cm) of rain fell in this region during the course of the year​
    9·1 answer
  • Help I will give 30 points help me out need ASAP please
    6·1 answer
  • Whats the answer.......................
    9·1 answer
  • Are the following lines parallel, perpendicular, or neither?
    5·1 answer
  • State the postulate of the theorem that justifies the answer
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!