3 years ago

Find a formula for the nth term an=4n+?

1 answer:

5 0

I tried a formula with Tn+1, swapped in 4n-2 for 4(n+1)-2 = 4n+4 and then proceeded with Tn+1 + Tn = 4n+2 - 4n-2.

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A set of mathematics exam scores are normally distributed with a mean of 80.280.280, point, 2 points and a standard deviation of

Ugo [173]

Answer:

0.2379

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2 years ago

System of Equations y=-x-1 y+x=3 Solve?

ozzi

Solve by substitution

$\sf{y=-x-1}$
$\sf{y+x=3}$

Just plug in y=-x-1 into y+x=3

So we get:

$\sf{(-x-1)+x=3}$

Simplify that:

$\sf{-1=3}$

And since that is not true, that means this system of equations has no solutions!

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3 years ago

PLS DO THIS I WILL MARK BRAINLYNESS

Lunna [17]

Answer:

3 9/10,64,B,D

Step-by-step explanation:

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3 years ago

The perimater of the triangle is 30cm. its sides are in the ratios 1:3:2, then find its sides

DiKsa [7]

Answer:

1 * 5 = 5cm

3 * 5 = 15cm

2 * 5 = 10cm

Step-by-step explanation:

1+3+2 = 6

then do 30 / 6 = 5 to find one part of the ratio

1 * 5 = 5

3 * 5 = 15

2 * 5 = 10

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3 years ago

Read 2 more answers

Consider these functions:

valkas [14]

I think the answer might be B

6 0

2 years ago