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Effectus [21]
3 years ago
7

Please help me need ASAP

Mathematics
1 answer:
solniwko [45]3 years ago
4 0

Answer:

3)Quadratic

Step-by-step explanation:

Brainliest?

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We want to solve the following system of equations using the substitution method.
inna [77]
In the second equation you are given what Y equals, which is (-5x - 3). You would use this equation and plug it into the y value given in the first equation where it says 2y and solve

That would be

3x - 2(-5x - 3) = -6
3x + 10x + 6 = -6
3x + 10x = -6 - 6
13x = -12
X = -12/13

Then if you want to solve for Y you can use any equation and plug in the x-value found.

I’m going to use equation 2.

Y = -5x - 3
Y = -5(-12/13) - 3
Y = 4.615 - 3
Y = 1.615

(-12/13, 1.615)

Therefore the x-value is -12/13 and the y-value is 1.615.
5 0
2 years ago
У-17= -3<br> How do I solve it
OleMash [197]

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7 0
3 years ago
Read 2 more answers
Jacob is unsure how long it will take to save $50,000. He knows that he'll make an initial investment of $5,000, and he can earn
maksim [4K]

Answer:

It will take Jacob 36 years to reach his goal

Step-by-step explanation:

In this question, Jacob is intending to save $50,000 but he is doing this by saving $5,000 at an interest which is compounded two times a year (semi-annually). We are tasked with calculating the number of years it will take him.

Mathematically, to solve this, what we use is the compound interest formula.

This is;

A = P(1 + r/n)^nt

Where in the question A is our savings target of $50,000

P is our initial amount saved of $5,000

r is the rate at 6.5%

n is the number of times interest will be compounded per year= 2

and t is the number of years it will take.

We plug all these values respectively to yield;

50,000 = 5,000(1 + 0.065/2)^(2t)

Divide through by 5,000

we have;

10 = (1.0325)^2t

Take the logarithm of both sides

Log 10 = Log (1.0325)^2t

Log 10 = 2tLog (1.0325)

2t = Log10/Log1.0325

2t = 72

t = 72/2

t = 36 years

6 0
3 years ago
Read 2 more answers
27 less than twice a number is -1
Natasha2012 [34]

Answer:

2x-27=-1

This is the equa

Step-by-step explanation:

Answer

x=13

This is the answer

4 0
3 years ago
Which phrase describes an unknown or changeable quality?
3241004551 [841]

Answer:

it should be the height of the building time 1/2

Step-by-step explanation:

let me know if its correct or incorrect we'll I hope this help you

8 0
3 years ago
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