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
RSB [31]
3 years ago
11

Help me please..... please

Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0

Answer:

general rule Un=1.8n-21

U100=1.8(100)-21=159

Step-by-step explanation:

a5=a+4d,  a5=-12

a10=a+9d,  a10=-3

-12=a+4d

-3=a+9d subtract the system of equations

-9=-5d solve for d

d=1.8

substitute d into first equation to find a

-12=a+4(1.8)

a=-19.2

un. = a + (n − 1)d

Un=-19.2+(n-1)(1.8)

Un=1.8n-21

You might be interested in
A cab company charges a $3 boarding rate in addition to its meter which is $2 for every mile. How much does it cost to ride this
Furkat [3]

Answer:

try using this it might help out with the question

Step-by-step explanation:

Y=2x+3

4 0
4 years ago
The perimeter of a rectangle is 54cm. The area of the same rectangle is 176 cm^2. What are the dimensions of the rectangle?
densk [106]

Given is rectangle with perimeter = 54 centimeters and area = 176 squared centimeters.

Let's consider the length of rectangle = L and width of rectangle = W.

We know the following formulas for rectangle :-

Perimeter = 2 x (L + W)

Area = L x W

So we have 2 x (L + W) = 54 and L x W = 176.

L + W = 27 and L x W = 176

We need to find two positive integers such that their sum is 27 and product is 176.

Using trial and error, we have two such positive integers such that 11 + 16 = 27 and 11 x 16 = 176.

So, the dimensions of rectangle would be 11cm x 16cm.

Hence, option A is correct i.e. 11 cm by 16 cm.

3 0
3 years ago
A survey of a group of seventh graders and a group of teachers at a local middle school asked how many siblings they each have.
nevsk [136]

Answer:

where is the other dot plot

5 0
3 years ago
A mayor wanted to see if the people in his town thought he was doing a good job.
Elodia [21]
It is b.the residents of the town
6 0
3 years ago
Read 2 more answers
john has $8 less than Sophie. Tiffany has three times as much as John. Together they have $192. How much does each person have?
riadik2000 [5.3K]
John does each person have? is 200
6 0
3 years ago
Other questions:
  • Factor these expressions: <br> A. 4x+12<br> B. 8r-14<br> C. 5x+35
    14·1 answer
  • I need help please help me
    8·1 answer
  • Find the new price after the markup given. Round to the nearest cent if necessary.
    15·1 answer
  • The prime factorization of_______ is 24 × 5.
    8·2 answers
  • Kimora wants to put ribbon around her SQUARE picture frame. One side is 7 inches long. How much ribbon will she need? (hint: aro
    14·1 answer
  • HELP HELP HELP HELP HELP HELP
    13·2 answers
  • What Should i write down basically i just need the answers and let me copy and paste
    9·1 answer
  • 1 Work out the discount for each of the following item
    11·2 answers
  • 4x−4&lt;8 AND 9x+5&gt;23<br><br> Doing Khan Academy<br> HelP!!
    12·1 answer
  • Help math related pleaseee
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!