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galben [10]
3 years ago
12

Find an explicit rule for the nth term of the sequence. 2, -8, 32, -128, ...

Mathematics
2 answers:
quester [9]3 years ago
7 0
An = 2 ● 4^n+1<span> 
</span>
I think...
Alex17521 [72]3 years ago
5 0

Answer:

The correct answer is an=2*(-4)^(n-1) !

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Find three consecutive integers such that three times the sum of the first two is eight more than 5 times the third.
klasskru [66]
Consecutive integers are numbers one after the other on the number one (ie. 1,2,3,4,5 or 203,204,205).

times= multiplication
sum= addition
more than= addition
is= equal sign

x= first integer
x+2= second integer
x+3= third integer

3(x + (x + 2))= 5(x + 3) + 8
add inside parentheses

3(2x + 2)= 5(x + 3) + 8
multiply 3 and 5 by their parentheses

(3*2x) + (3*2)= (5*x) + (5*3) + 8
multiply in parentheses

6x + 6= 5x + 15 + 8

6x + 6= 5x + 23
subtract 5x from both sides

x + 6= 23
subtract 6 from both sides

x= 17 first integer

x + 1= 17 + 1= 18 second integer

x + 2= 17 + 2= 19 third integer


CHECK:
3(x + (x + 2))= 5(x + 3) + 8
3(17 + (17 + 2))= 5(17 + 3) + 8
3(17 + 19)= 5(20) + 8
3(36)= 100 + 8
108= 108


ANSWER: The three consecutive integers are 17, 18 and 19.

Hope this helps! :)
7 0
3 years ago
How much more does Rasheed need to earn before he can buy the video games?
Alona [7]
Need more information to answer the question
5 0
3 years ago
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The following three shapes are based only on squares, semicircles, and quarter circles. find the perimeter and the area of each
kondaur [170]

Step-by-step explanation:

Area of Shaded part

= 2 * Area of Quarter-circle - Area of Square

= 0.5π(8)² - 8²

= 32(π - 2)cm².

Perimeter of Shaded part

= 0.5 * 2π(8)

= 8πcm.

8 0
3 years ago
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How do i find the interquartile range in a dot plot? please help!!!!
jenyasd209 [6]

Answer:

Step-by-step explanation:

1. List out all data from least to greatest

2. Find the median (the middle number)

3. Find the median of the lower part of data (the numbers lesser in value compared to the median; do not include the median while finding this)

4. Do the same with the numbers above the median.

5. Take the medians of the lower numbers and higher and find the difference,

6. Thats your interquartile range

8 0
3 years ago
The lengths of the sides of a triangle are given below. Classify the triangle as acute, obtuse, or right.
abruzzese [7]

Answer:

  • A. Acute Triangle

Step-by-step explanation:

<u>Lets verify with Pythagorean:</u>

  • 17² = 289
  • 13² + 14² = 169 + 196 = 365
  • 289 < 365

The angle opposite to a greater side is less than 90° and the sum of the squares are close.

It means all three angles<u> are less than 90°</u>.

With this the triangle is <u>acute</u>.

Correct choice is A.

6 0
3 years ago
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