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
Nikolay [14]
3 years ago
8

I need help plzzzzzz

Mathematics
1 answer:
AleksandrR [38]3 years ago
7 0
I believe the first one is 210
The party on Saturday was bigger. You know that Friday they had 31 people. Saturday they had 210 people.
The first one is 1+2(15)=31
The second one I’m not sure how to write up an equation for that because I just added 1+2+3+4+5..... and so on until 20 and got 210.
Not even sure if this is even right honestly, Just thought I’d at least try and help.
You might be interested in
Find the slope of the line that passes through (-4, -34) and (84, -66).
Dimas [21]

Answer:Look at picture :)

Step-by-step explanation:

5 0
3 years ago
Tiffany practices her guitar for 3 Over 4 hour each day. How many hours does she practice in 7 days
miv72 [106K]

Answer:

5 1/4

Step-by-step explanation:

4 0
2 years ago
The City of Oz has to repaint its cylinder-shaped water tower. Only the top and sides need to be painted. If the water tower has
scoundrel [369]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Among the choices provided the answer should be letter C. Below is the solution:

top 
<span>pi r^2 or pi * 400 </span>
<span>sides </span>
<span>2 pi r * 60 </span>
<span>40 * 60 pi </span>
<span>2400pi </span>

<span>so add the top and side we get p*400 + p*2400 = 2800 pi ft^2</span>

6 0
3 years ago
Line j passes through points 1,6 and 7,1 line k is parallel to line j. What is the slope of line k?
Mashutka [201]
Slope formula m = (y2-y1) / (x2 - x1)
m = (1 - 6) / 7 - 1)
m = -5 / 6

Slope or parallel lines are the same
Slope = -5/6
6 0
2 years ago
Choose the graph below that has an undefined slope.
Ronch [10]

Answer:

The correct option is A.

Step-by-step explanation:

The first line passing through the points (-6,2) and (-6,0).

The slope of a line is

m=\frac{y_2-y_1}{x_2-x_1}

The slope of first line is

m_1=\frac{0-2}{-6-(-6)}=\infty

The second line passing through the points (0,-4) and (-1,1). The slope of second line is

m_2=\frac{1-(-4)}{-1-0}=-5

The third line passing through the points (0,-6) and (2,-6). The slope of third line is

m_3=\frac{-6-(-6)}{2-0}=0

The fourth line passing through the points (0,6) and (-3,-7). The slope of fourth line is


m_4=\frac{-7-6}{-3-0}=\frac{13}{3}

Since the slope of a vertical line is infinity, Therefore option A is correct.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The swimming pool and the floor of your gym are similar in size. The pool is 75 feet long by 60 feet wide. What are possible dim
    8·1 answer
  • Evaluate ƒ(–3) for ƒ(x) = –5x2 + 2x –1.
    6·1 answer
  • 10% of the students in a school like the color purple. 162 students don't like the color purple. How many students are in the sc
    5·1 answer
  • Why is 4.125 + the square root of 3 irrational
    15·1 answer
  • I need help with this anyone ?????
    14·1 answer
  • Is 1/2 = to 2/4 or is 1/2 greater than 1/4
    7·1 answer
  • camerina started work at 9am and left at 230 pm how many hours of work should she record on her time card for the day
    9·2 answers
  • What is the following simplified product? Assume x &gt;0.
    6·1 answer
  • Please help me i’m failing
    13·1 answer
  • Nancy and her sister went to the store together. After the store, Nancy walked 2 blocks west to get a coffee and her sister walk
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!