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CaHeK987 [17]
3 years ago
13

Which of these describes a unique polygon?

Mathematics
1 answer:
PtichkaEL [24]3 years ago
4 0
The last one is correct
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the value in dollars, v(x), of a certain truck after x years is represtented by the equation v(x)=32500(0.92)* ( *=to the x powe
vekshin1
The value of track is given by:
V(x)=32500(0.92)^x
when x=2
V(2)=32500(0.92)^2=$27508

when x=3
V(3)=32500(0.92)^3=$25,307.36

Difference in values will be:
27508-25307.36
=$2,200.64 

3 0
3 years ago
Roberto evaluated 34 ÷ 45 and got an answer of 1516. Which statement is true about his answer?
Bezzdna [24]

Answer:

Roberto is correct because 15/16 x 4/5 = 3/4.

Roberto's solution to the division problem is correct, but

there are no true statements on your list of choices.

4 0
3 years ago
Read 2 more answers
Can somebody prove this mathmatical induction?
Flauer [41]

Answer:

See explanation

Step-by-step explanation:

1 step:

n=1, then

\sum \limits_{j=1}^1 2^j=2^1=2\\ \\2(2^1-1)=2(2-1)=2\cdot 1=2

So, for j=1 this statement is true

2 step:

Assume that for n=k the following statement is true

\sum \limits_{j=1}^k2^j=2(2^k-1)

3 step:

Check for n=k+1 whether the statement

\sum \limits_{j=1}^{k+1}2^j=2(2^{k+1}-1)

is true.

Start with the left side:

\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}\ \ (\ast)

According to the 2nd step,

\sum \limits_{j=1}^k2^j=2(2^k-1)

Substitute it into the \ast

\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}=2(2^k-1)+2^{k+1}=2^{k+1}-2+2^{k+1}=2\cdot 2^{k+1}-2=2^{k+2}-2=2(2^{k+1}-1)

So, you have proved the initial statement

4 0
3 years ago
Given: RW ≅ WT; UW ≅ WS Prove: RSTU is a parallelogram. Identify the steps that complete the proof.
JulijaS [17]

Identify the steps that complete the proof.

♣ = <span>✔ vertical angles theorem</span>

♦ = <span>✔ SAS</span>

♠ = <span><span>✔ CPCTC</span></span>

7 0
3 years ago
Read 2 more answers
17 - 6 * 10 / 2 + 12 is what​
Zarrin [17]

Answer:

- 1

Step-by-step explanation:

Using the order of operations PEMDAS ( parenthesis, exponents, multiplication, division, addition, subtraction )

Given

17 - 6 × 10 ÷ 2 + 12 ← perform multiplication

= 17 - 60 ÷ 2 + 12 ← perform division

= 17 - 30 + 12 ← perform addition/ subtraction from left to right

= - 13 + 12

= - 1

7 0
3 years ago
Read 2 more answers
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