2 years ago

Which conversion is correct?

Mathematics

1 answer:

jonny [76]2 years ago

6 0

.75 75% 3/4 is the correct answer

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What is the explicit formula for this sequence?

ddd [48]

Answer:

$a_n=-7+4(n-1)$

$a_n=-7+(n-1)(4)$

Step-by-step explanation:

-7,-3,1,5,... is a arithmetic sequence.

Arithmetic sequences have a common difference. That is, it is going up by 4 each time.

When you see arithmetic sequence, you should think linear equation.

The point-slope form of a line is $y-y_1=m(x-x_1)$ .

m is the common difference, the slope.

Any they are using the point at x=1 in the point slope form. So they are using (1,-7).

So let's put this into our point-slope form:

$y-(-7)=4(x-1)$

$y+7=4(x-1)$

Subtract 7 on both sides:

$y=-7+4(x-1)$

So your answer is

$a_n=-7+4(n-1)$

6 0

3 years ago

You have a jar of marbles. There are 15 red, 20 blue, 7 green, and 18 yellow marbles. You choose a marble at random from the jar

Nookie1986 [14]

Answer:

the right answer is b. 2/3

6 0

3 years ago

Find a point-slope form for the line with slope 1 over 5 and passing through the point -8, -7

Whitepunk [10]

Answer:

(1/5)x-5.4=y

Step-by-step explanation:

mx+b=y

m=(1/5)

(-8,-7)=(x,y)

(1/5)(-8)+b=(-7)

-1.6+b=-7

b=-5.4

(1/5)x-5.4=y

6 0

3 years ago

What is the solution of this system of linear equations?

Vesnalui [34]

Answer:

is that the number in the middle = then more the -3 to 2x add in you get 1 being y=1 so 1 -3 is 2x

6 0

3 years ago

Which fraction is equivalent to 2 over negative 6?

Advocard [28]

It’s negative 2 over 6

5 0

3 years ago

Read 2 more answers