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3 years ago

PLEASE ANSWER 60 POINTS!!!!! and brainlyist

Mathematics

1 answer:

Pepsi [2]3 years ago

4 0

Answer:

y = 5 x=4

Step-by-step explanation:

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HURRYYY!!!

Tema [17]

The last two.

They are equivalent

3+3=6 6•4=24

4•3=12 12+12 is 24

7 0

3 years ago

When the sum of \, 528 \, and three times a positive number is subtracted from the square of the number, the result is \, 120. F

aleksandr82 [10.1K]

Let $x$ be the unknown number. So, three times that number means $3x$ , and the square of the number is $x^2$

We have to sum 528 and three times the number, so we have $528+3x$

Then, we have to subtract this number from $x^2$ , so we have

$x^2-(3x+528)$

The result is 120, so the equation is

$x^2 - 3x - 528 = 120 \iff x^2 - 3x - 648 = 0$

This is a quadratic equation, i.e. an equation like $ax^2+bx+c=0$ . These equation can be solved - assuming they have a solution - with the following formula

$x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

If you plug the values from your equation, you have

$x_{1,2} = \dfrac{3\pm\sqrt{9-4\cdot(-648)}}{2} = \dfrac{3\pm\sqrt{9+2592}}{2} = \dfrac{3\pm\sqrt{2601}}{2} = \dfrac{3\pm51}{2}$

So, the two solutions would be

$x = \dfrac{3+51}{2} = \dfrac{54}{2} = 27$

$x = \dfrac{3-51}{2} = \dfrac{-48}{2} = -24$

But we know that x is positive, so we only accept the solution $x = 27$

6 0

3 years ago

Consider the linear function that is represented by the equation y = negative 10 x + 6 and the linear function that is represent

Vilka [71]

Answer: The function that is represented by the equation y = negative 10 x + 6 has a steeper slope and a greater y-intercept.

Step-by-step explanation: I took the unit test on edge hoped this helped <3

8 0

3 years ago

Read 2 more answers

Y is 5 less than the product of 4 and x

Tema [17]

Y=4x-5... if you were asking for that in words

3 0

3 years ago

Read 2 more answers

Explain how you write products when there are not enough digits in the product to place the decimal point

WARRIOR [948]

ok for example, u need 5 decimal spaces and your number is 49 all you need to do and add zeros to add your decimal like this-------> 49---->1: 4.9----->2: .49 ---->3: .049----->4: .0049------>5: .00049 so taht would mean that your answer would be .00049

7 0

3 years ago