Please help will mark Brainly!

Mathematics

1 answer:

MakcuM [25]4 years ago

7 0

Answer:

The table doesn't display a linear relationship because the slope doesn't stay constant throughout the whole table.

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Which are the solutions of the quadratic equation?

Drupady [299]

For this case we must find the roots of the following equation:

$x ^ 2-7x-4 = 0$

We have to:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

Where:

$a = 1\\b = -7\\c = -4$

Substituting the values:

$x = \frac {- (- 7) \pm \sqrt {(- 7) ^ 2-4 (1) (- 4)}} {2 (1)}\\x = \frac {7 \pm \sqrt {49 + 16}} {2}\\x = \frac {7\pm\sqrt {65}} {2}$

We have two roots:

$x_ {1} = \frac {7+ \sqrt {65}} {2} = 7.53\\x_ {2} = \frac {7- \sqrt {65}} {2} = - 0.53$

Answer:

$x_ {1} = \frac {7+ \sqrt {65}} {2} = 7.53\\x_ {2} = \frac {7- \sqrt {65}} {2} = - 0.53$

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3 years ago

A 2 pound bottle of barbeque sauce cost $22.08.what is the price per ounce ?

beks73 [17]

The answer is $0.69. This is because there are 32 ounces in the bottle, and $22.08/32=0.69, or $0.69.

3 0

4 years ago

A line has a slope of 9/4 and a y-intercept of -14.

scoray [572]

The answer correct is C.

We can use the linear equation y=mx+b to help. y is the dependent variable, m is slope, x is the independent variable, and b is the y intercept.

In this case, the values of x and y were not given, so we still have y=mx+b. We can substitute 9/4 for m and -14 for b to get y=9/4x-15, which is C.

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3 years ago

Szdfxgthyjunmklhjuxcgtfrhyuji

Aleksandr [31]

Hi!

The negative signs cancel out iin the equation to make a positive 7.

The 4 is already positive.

So that makes it 4 + 7!

Or 7 +4!

Answer choice A.

Hope this helps!

4 0