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3 years ago

What is the value of x for y = 12 (4x + 6) when y = 8? Plz I’m so lost

Mathematics

1 answer:

Luda [366]3 years ago

5 0

Answer:

x= $-\frac{4}{3}$

Step-by-step explanation:

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How many solutions does the system of equations below have? Y=2x - 6 y=5/9x+9/4

kramer

Answer:

Step-by-step explanation:

next two the = there are 2 ys

6 0

3 years ago

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Solve each equation using the quadratic formula. Find the exact solution, then approximate the solution to the nearest hundredth

Anika [276]

Answer:

$x_1=\frac{5+\sqrt{33}}{4}$ ≈2.69

$x_2=\frac{5-\sqrt{33}}{4}$ ≈-0.19

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

1. You have that the quadratic formula is:

$x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}$

2. To solve the quadratic equation you must substitute the values. So, you have that:

Rewrite the equation:

$2x^{2}-5x-1=0$

$a=2\\b=-5\\c=-1$

Then you have:

$x=\frac{-(-5)+/-\sqrt{(-5)^{2}-4(2)(-1)}}{2(2)}$

3. Therefore, you obtain the following result:

$x_1=\frac{5+\sqrt{33}}{4}$ ≈2.69

$x_2=\frac{5-\sqrt{33}}{4}$ ≈-0.19

4 0

3 years ago

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At the Tesla factory, a machine tests 1 out of every 75 windshields produced for quality. The machine requires a safety inspecti

Sloan [31]

Answer:

pretty sure it's 675

Step-by-step explanation:

could be wrong but if there are 303,750 windsheilds per year and the machine needs an inspection after every 450 you just divide them.

6 0

3 years ago

Which property is (8•9)b=8(9b)

Ludmilka [50]

Answer:

Associative Property

Step-by-step explanation:

When the order of operands remains the same, all operations are identical (multiplication, or addition), and only the parentheses change places, the property involved is the associative property.

6 0

4 years ago

I WILL Mark brainliest if you answer correctly

Minchanka [31]

Answer: i am pretty sure its B

Step-by-step explanation:

4 0

3 years ago

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