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aivan3 [116]
4 years ago
12

A(n)=-1/16(2)^n-1 What is the 4th term in the sequence?

Mathematics
1 answer:
Hunter-Best [27]4 years ago
7 0

Answer:

-1/2

Step-by-step explanation:

n-1 is sequence number minus one so that is three. now you have 2 to the power of three which is 8 and 8 time -1/16 is negative 1/2

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10) Which two ratios form a proportion? A) 1 : 2 and 4 : 2 B) 1 : 2 and 6 : 3 C) 2 : 1 and 2 : 4 D) 2 : 1 and 6 : 3
Likurg_2 [28]

Answer:

2/1and6/3 because if you do cross multilication they both equal 6

Step-by-step explanation:

8 0
4 years ago
Dave walked to his friend's house at a rate of 4mph and returned back biking at a rate of 10mph. If it took him 18 minutes longe
schepotkina [342]

Answer:

4 miles

Step-by-step explanation:

4 0
3 years ago
A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet.
Lorico [155]

The length of each side is 50 inch/ 600 ft

Step-by-step explanation:

Given,

The perimeter of the square park = 12 inches

1 inch = 200 ft

12 inches = 12×200 ft = 2400 ft

To find each side of the park.

Let, each side be 'a' inches

Formula

The perimeter of a square = 4a

According to the problem,

4a = 2400

or, a = 600 ft

= 50 inch

7 0
3 years ago
Read 2 more answers
2x - y = 11<br> 6x – 3y = 15 <br> solve for x and y using elimination
Yanka [14]

Answer:

Step-by-step explanation:

Given the simultaneous equation

2x - y = 11. Equation 1

6x – 3y = 15. Equation 2

Using elimination method

Multiply the coefficient of x in equation 1 (which is 2) to equation 2. Also, multiply the coefficient of x in equation 2 (which 6) to equation 1. By doing this we are going to eliminate x

2x - y = 11. × 6 Equation 1

6x – 3y = 15. ×2 Equation 2

12x-6y=66. Equation 3

12x-6y=30. Equation 4

Subtract equation 4 from 3

Then (12x-6y) - (12x-6y) =66 -30

0=36

Which is not possible

Then the system has no solution, it has no solution at all. Because 0 is not equal to 36. If has been 0 equals to 0, then we may many solutions for simultaneous equation.

8 0
3 years ago
Jessica is making a giant ice cream sundae. She uses 8 cherries and 36 scoops of ice cream. The ratio ofbecause you need to divi
Delicious77 [7]

Answer:

2 cherries to 9 ice cream

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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