MATHEMATICS MIDDLE SCHOOL

NEED THE ANSWER ASAP PLEASE

Answers

Answer 1

Answer:

Step-by-step explanation:

$(y1 - y2)/(x1 - x2) \n (3 - 3)/( - 3 - 1) \n (0)/( - 4) \n = - 4$

Answer 2

Answer: Slope=(y2-y1)/(x2-x1)
=(3-3)/(1+3)
=0/4
=0

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Answers

Answer:

need to see the question

Step-by-step explanation:

For the following geometric sequence find the recursive formula: {-1, 3, -9, ...}.

Answers

Based on these first few terms, we can deduce that the next term is computed by switching the sign of the previous one, and multiplying it by 3: we start with -1, we switch the sign (1) and multiply by 3 (3); then again we switch the sign (-3) and multiply by 3 (-9), and so on.

Since switching sign is the same as multiplying by -1, we can compute every next term by multiplying the previous one by -3:

$a_1 = -1\na_2 = a_1\cdot(-3) = (-1)\cdot(-3)=3\na_3 =a_2\cdot(-3)=3\cdot(-3)=-9$

So, the recursive formula is

$a_n = -3a_(n-1)$

because it states precisely that the next term is -3 times the previous one.

(3x²-7x+2)+(2x²+7x-1)

Answers

3x^2+−7x+2+2x^2+7x+−1
Combine like terms:
3x^2+−7x+2+2x^2+7x+−1
(3x^2+2x^2)+(−7x+7x)+(2+−1)
Answer:
5x^2+1

$(3x^2 - 7x + 2)+(2x^2+7x - 1)=\n\n3x^2 - 7x + 2 +2x^2 + 7x - 1=\n\n3x^2+2x^2-7x+7x+2-1=\n\n\boxed{\bf{5x^2+1}}$

Explain how you can find the missing number in 3 4/5 divide [ ] = 2 5/7 then find the missing number. I need help now please.

Answers

find the missing number in 3 4/5 divide [ ] = 2 5/7

Let the unknown number be x

$(3 (4)/(5))/(x)=2(5)/(7)$

$3(4)/(5)$ can be written as $(19)/(5)$

$2(5)/(7)$ can be written as $(19)/(7)$

So equation becomes

$((19)/(5))/(x)=(19)/(7)$

We need to get x alone, so we multiply by x on both sides

$(19)/(5)=(19)/(7) *x$

Now to remove 9/7 we take reciprocal and multiply it on both sides

$(19)/(5) * (7)/(19) =(19)/(7)* (7)/(19) *x$

$(7)/(5)=x$

The missing number is $(7)/(5)$

answer is 10 11/35

Because here you are finding an unknown, so you redo the problem.
The problem tells you to divide so the opposite is times the number
so 2 5/7 times 3 4/5 is 10 11/35

....................

Answers

Answer:

9.81*106

Step-by-step explanation:

What is the solution to the system of equations?
3x-2y=19
Y=x-7

Answers

Greetings!

Answer:

x = 5 and y = -2

Step-by-step explanation:

Here you have given what y is equal to, this means you can sub this into the first equation:

3x - 2(x - 7) = 19

Expand the brackets:

-2 * x = -2x

-2 * -7 = 14

3x -2x +14 = 19

Move the +14 over to the other side making it a -14:

3x - 2x = 19 - 14

3x - 2x = 5

3x - 2x = x

So x = 5

Now sub this into the first equation:

3(5) - 2y = 19

15 - 2y = 19

Move the -2y over to the other side making it a +2y, and move the +19 over to the other side making it a -19:

15 - 19 = 2y

-4 = 2y

Divide both sides by two:

y = -2

So x = 5 and y = -2

Hope this helps!

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