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lyudmila [28]
3 years ago
15

Which of the following algebraic expressions can be used to express the statement "five less than y squared?" 5 − 2y 2y − 5 y2 −

5 5 − y2
Mathematics
1 answer:
beks73 [17]3 years ago
5 0
Y2- 5. The answer is this
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What is the 8th term of the geometric sequence a2 = 20 and r = 5
algol [13]

Answer:

8th term of geometric sequence is 312500

Step-by-step explanation:

 Given :  a_2=20 and common ratio (r) = 5

We have to find the 8th term of the geometric sequence whose a_2=20 and common ratio (r) = 5  

Geometric sequence is a sequence of numbers in which next term is found by multiplying by a constant called the common ratio (r).

     a_n=ar^{n-1}  ......(1)

where  a_n  is nth term and a is first term.

For given sequence

a can be find using  a_2=20 and r =  5

Substitute in (1) , we get,

a_2=ar^{2-1}

\Rightarrow 20=a(5)  

\Rightarrow a=4

Thus, 8th term of the sequence denoted as  a_8

Substitute n= 8 in (1) ,  we get,

a_8=ar^{8-1} \\\\a_8=(4)r_{7} \\\\a_8=4(5)^7=4 \times 78125=312500

Thus 8th term of geometric sequence is 312500

8 0
3 years ago
Solve system of equations <br><br> 3x+6y=3 <br> X+2y=1
pav-90 [236]

Answer:

has infinite solution

Step-by-step explanation:

(x,y)=(1-2a,a) where a is an element of any real number

7 0
2 years ago
Two triangles, Triangle 1 and triangle 2, are similar. Is it a Dilation?
Arlecino [84]

Answer:

You can't be sure without an image.

Step-by-step explanation:

If one moves left or right, that's a horizontal translation.

If one moves up or down, it's a vertical translation.

A dialation is when the image gets smaller or bigger.

8 0
2 years ago
You run 35 yards and score a touchdown. How many feet is that?
Kipish [7]

Answer:

105

Step-by-step explanation:

theres 3 feet in a yard

5 0
3 years ago
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The area of a square garden is 200 m^2. How long is the diaginal
JulijaS [17]

Answer:

400

Step-by-step explanation:

6 0
3 years ago
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