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shusha [124]
2 years ago
14

9

Mathematics
1 answer:
Artist 52 [7]2 years ago
7 0

Answer:

Read explain

Step-by-step explanation:

The steps taken to solve this system of equations would first be:

1. Sub 4x-2 into your first equation, 2x+5(4x-2)= 12 ->

2. Solve/simplify this equation to get x=1

3. Sub x=1 into your second equation and solve for y = 2

4. Get the solution (1,2)

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Rewrite the equation 8x + 6x^2 -7=x^2 in standard form and identify a, b, and c.
Vladimir79 [104]

Answer:

5x^2+8x-7=0\\a=5\\b=8\\c=-7

Step-by-step explanation:

The standard form of a quadratic is ax^2+bx+c=0. You need to subtract the x^2 from the right to set the quadratic equal to 0. Then a,b, and c are equal to the values of the coefficients in front of the terms.

If this helped, a brainliest would be greatly appreciated!

6 0
3 years ago
$10000 in an account paying 8% compounded annually. how much will the account be worth in 18 years
lawyer [7]
10000x8%= $800 anually
anually=yearly
800x18=14400

5 0
3 years ago
I am so lost on this question. I’ve never heard of a matrices so I have no clue where to even start to solve this problem.
balu736 [363]

Answer:

thas multiple matrix bro

Step-by-step explanation:

5 0
3 years ago
CAN ANYONE HELP ME ANSWER THIS ​
azamat

Answer:

9/100

Step-by-step explanation:

There are 10 marbles in the bag

There are 3 pink marbles.

P (1st marble pink) = pink marbles/ total marbles

                              = 3/10

We put the marble back.

There are 10 marbles in the bag

There are 3 pink marbles.

P (2nd marble pink) = pink marbles/ total marbles

                                      = 3/10

Multiply the probabilities together

P (pink, then pink) = 3/10 * 3/10 = 9/100

7 0
3 years ago
How many integers n leave remainder 4 when divided by 7, if n satisfies the given inequality?
bekas [8.4K]

Consider inequality |-n| This inequality is equivalent to inequality |n|

This means that -46

The greatest integer number n, such that -46 when dividing by 7 gives the remainder 4 is 39. Then subtract 7, you get 32, then 25 and so on.

When n=-39, -32, -25, -18, -11, -4, 4, 11, 18, 25, 32, 39 then dividing by 7 the remainder is 4.

Answer: 12 integers.

4 0
3 years ago
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