3 years ago

What do you get when you round to the nearest hundredth? HELPPP ME

Mathematics

1 answer:

KatRina [158]3 years ago

8 0

what number though I can probably help you but what number do you need to round.

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The explicit rule for a sequence is an=5(−2)^n−1

Murrr4er [49]

Answer:

3) $a_n=-2a_{n-1}$ , $a_1=5$

Step-by-step explanation:

Given that the explicit rule for a sequence is $a_n=5(-2)^{n-1}$ .

Now we need to find about what is the recursive rule for the sequence and match with the given choices to find the correct choice.

1) $a_n=-2a_{n+1}$ , $a_1=5$

2) $a_n=-5a_{n+1}$ , $a_1=2$

3) $a_n=-2a_{n-1}$ , $a_1=5$

4) $a_n=-5a_{n-1}$ , $a_1=2$

Plug n=1 into given formula to get first term

$a_n=5(-2)^{n-1}$

$a_1=5(-2)^{1-1}=5(-2)^{0}=5(1)=5$

base of the exponent part is (-2) so that means we need to multiply -2 to the previous term to get nth term

Hence correct choice is: 3) $a_n=-2a_{n-1}$ , $a_1=5$

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3 years ago

Write the equation of the circle in general form. Show your work.

Nonamiya [84]

Answer:

The equation would be:

(X+1)^2 + (y-1)^2 = 9

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A train is traveling at a constant speed. The diagram represents the train's distance and time. What is the speed of the train?

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240÷6=40 so the answer would be "The train is traveling 40 miles per hour."

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Which statement is true? All squares are rectangles. All quadrilaterals are rectangles. All parallelograms are rectangles. All r

azamat

Answer:

all squares are rectangles is true

Step-by-step explanation:

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