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
Aliun [14]
3 years ago
7

Find the 9th term of the geometric sequence 2, -10 50 -250

Mathematics
1 answer:
tigry1 [53]3 years ago
7 0

Answer:

781250

Step-by-step explanation:

We first need to find the common ratio

-10 /2 = -5

50 / -10 = -5

The common ratio is -5

an = a (r) ^ (n-1)

a9 = 2 ( -5) ^(9-1)

     = 2 (-5)^8

      =781250

You might be interested in
Which sequence of transformations proves that shape I is similar to shape II?
Serhud [2]

Answer:

B. a reflection across X axis and then a dilation by a scale factor of 1.5

Step-by-step explanation:

As clear from the graph all the coordinates of image 2 are 1.5 times of image 1 so shape 2 is dilated by the scale factor 1.5.

It is evident from the graph that lines AO and A"O"are parallel to each other so shape 2 is the reflection of shape 1.

Now we calculate the magnitude of line AB

m1 = (y2-y1)/(x2-x1)

    =(-3+6)/(-4.5=9)

    =3/4.5

    =1/1.5

    =2/3

Next we calculate magnitude m2 of A"B"  

m2= (2-4) /(-3+6)

     =(-2/3)

Then we know Tan(180-∅) = -tan∅

similarly if m1=(-m2)

then the one line having magnitude m2 is the rotated image through X axis by 180° of the line having magnitude m1.

So the answer is B.

4 0
4 years ago
Read 2 more answers
What is a+ a/5+ 2/5a
Galina-37 [17]

Answer:

8a over 5

Hope this helps :)

Step-by-step explanation:

8 0
3 years ago
the perimeter of a right angled triangle is 60 cm and its area is 120cm².find the lengths of the triangle.​
vredina [299]

Step-by-step explanation:

The area of triangle given as 120 cm2

Area of Triangle = 1/2 x b x h = 120

therefore bxh = 240

240 can be factorized as 10 x 24

The perimeter of the triangle is given as 60

so the other side has to be 26 cm

As this is a right angle triangle it should satisfy pythagoras theorem

(10)2 + (24)2 = (26)2

100+576 =676

Hence the sides of the triangle are 10 cm, 24 cm and 26 cm

3 0
3 years ago
A tool bench is 35 inches long and 19. Inches wide how many square inches of the basement floor does it cover
konstantin123 [22]

Answer:

665

Step-by-step explanation:

The tool bench which has the shape of a rectangle, a 4-sided shape with lengths and width.

The area of a rectangle A is given by the formula;

A = L × B

Where L is the length, B is the width

Given the bench is 35 inches long and 19 Inches wide

L = 35 inches, B = 19 inches

A = 35 × 19 = 665 square inches

The tool bench will cover 665 square inches of the basement floor .

7 0
3 years ago
Read 2 more answers
Calculate the slope of the line that contains the points (3, 4) and (4, -2).
Maurinko [17]

Answer:

-6

Step-by-step explanation:

slope=y2-y1/x2-x1

=-2-4/4-3

=-6/1

=-6

6 0
3 years ago
Other questions:
  • Samuel's Car Service will charge a flat travel fee of $4.75 for anyone making a trip. They charge an additional set rate of $1.5
    10·1 answer
  • Write the number in exponent form
    6·1 answer
  • Write the equation for the function represented on the graph below. Explain your reasoning. PLEASE NEED HELP ASAP!!!!!
    7·1 answer
  • GEOMETRY HELP!! SOS! SOS!
    7·1 answer
  • If an employee earns $20.00 per hour plus $1.50 per hour for vacation and you pay $2.00 per hour in tax and $9.00 for every $100
    6·1 answer
  • Leena bought 14 yards of wire. How many inches of wire did she buy? (1 yard = 36 inches)?
    7·2 answers
  • Stephanie spent half of her weekly
    9·1 answer
  • “Mark your diagram with the givens and write a 2 column proof” IMAGE ATTACHED PLEASE HELP!!
    8·1 answer
  • Find the area of the region enclosed by the graphs of the functions
    10·1 answer
  • Solve for h: -2/3h-4=4/3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!