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1 year ago

6) the cost of a video game is $22.00

Mathematics

1 answer:

Rzqust [24]1 year ago

5 0

Answer:

$23.32

Step-by-step explanation:

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The mathematical expression 9€ T means

Kaylis [27]

Answer:

Given mathematical expression means that '9 is a member of the set T'.

Step-by-step explanation:

We are given the mathematical expression,

' 9 € T '.

In words, it means '9 belongs to T'.

That is, 'the element 9 belongs to the set T' i.e. '9 is a member of the set T'.

Hence, the given mathematical expression means that '9 is a member of the set T'.

7 0

2 years ago

Determine the next step for solving the quadratic equation by completing the square.

Studentka2010 [4]

Answer:

The solutions are $x=\frac{1+\sqrt{7}}{2}$ and $x=\frac{1-\sqrt{7}}{2}$

Step-by-step explanation:

we have

$0=-2x^{2}+2x+3$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$-3=-2x^{2}+2x$

Factor the leading coefficient

$-3=-2(x^{2}-x)$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$-3-0.5=-2(x^{2}-x+0.5^{2})$

$-3.5=-2(x^{2}-x+0.5^{2})$

Rewrite as perfect squares

$-3.5=-2(x-0.5)^{2}$

$7/4=(x-0.5)^{2}$

square root both sides

$x-0.5=(+/-)\sqrt{\frac{7}{4}}$

$x-\frac{1}{2}=(+/-)\frac{\sqrt{7}}{2}$

$x=\frac{1}{2}(+/-)\frac{\sqrt{7}}{2}$

$x=\frac{1+\sqrt{7}}{2}$

$x=\frac{1-\sqrt{7}}{2}$

4 0

2 years ago

This year, Carmen watched 70 movies. She thought that 21 of them were very good. Of the movies she watched, what percentage did

spin [16.1K]

Carmen thought 30% of the movies were good.

I found the percent by dividing 21 by 70

21/70= .3

.3= 30%

8 0

3 years ago

Help?????????????? I need to know the answer

Natasha2012 [34]

The slope of the line is -2

8 0

2 years ago

Give the equations of 3 lines that are parallel to the line with the equation y=3x+2

ruslelena [56]

Y= 3x + 1
Y = 3x + 3
Y= 3x + 4

6 0

2 years ago