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3 years ago

10

Which choice is the equation of a line that passes through the point (–2, 8) and is perpendicular to the line represented by thi

s equation?
5x − 2y = −10

A. 2x− 5y = 26
B. 5x + 2y = 10
C. 2x + 5y = 36
D. −2x + 5y = −13

1 answer:

Nookie1986 [14]3 years ago

5 0

The answer is D) -2x+5y=-13

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Find the explicit formula for the sequence? -1,4,-16,64......

Ede4ka [16]

The explicit formula for given sequence is: $a_n = -1 . (-4)^{n-1}$

Step-by-step explanation:

Given sequence is:

-1,4,-16,64.....

We can see that there is no same difference between consecutive terms so we will find common ratio to see if it is a geometric sequence.

Here

$a_1 = -1\\a_2 = 4\\a_3 = -16\\a_4 = 64\\r = \frac{a_2}{a_1} = \frac{4}{-1} = -4\\r = \frac{a_3}{a_2} = \frac{-16}{4} = -4$

The explicit formula for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the values of r and a1

$a_n = -1 . (-4)^{n-1}$

Hence

The explicit formula for given sequence is: $a_n = -1 . (-4)^{n-1}$

Keywords: Geometric sequence, common ratio

Learn more about geometric sequence at:

#learnwithBrainly

5 0

3 years ago

. IF F(x) = 2(x-3) + 4, what is F(-2)?

Virty [35]

F(x) = 2(x-3) + 4
F(-2) = 2(-2-3) + 4
F(-2) = 2(-5) + 4
F(-2) = -10 + 4
F(-2) = -6

Hope this helps

8 0

3 years ago

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Please!!!!!!!!! help!!!! me!!!!!!!!!!

LuckyWell [14K]

Hey! the answer is 8 dimes and 4 nickels

8 dimes = 8×10
and 4 nickels = 5×4 = 20
which 20+80 = 100
and I would put (D) break into parts
hope it helps!

5 0

3 years ago

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The swimming pool is opening hours a day the pool manager must divide pool time equally among five groups camp; camp swim team,

ale4655 [162]

Answer:

1.6 hours

Step-by-step explanation:

Number of opening hours a day = 8

Number of groups = 5

Dividing the number of opening. Hours equally among the 5 groups :

8 hours / 5

= 1.6 hours per group per day

4 0

3 years ago

Is AJKL = AMNO? If so, name the congruence postulate that applies.

romanna [79]

Answer:A that is what I think the answer is

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3 years ago