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4 years ago

Answer need FAST plz.

Mathematics

2 answers:

Evgen [1.6K]4 years ago

8 0

Answer:

-5

Step-by-step explanation:

5*-5=-25

5*1=5

A negative plus positive decreases in value

so -25+5=-20

Cerrena [4.2K]4 years ago

3 0

Hopefully this will help you

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Write an expression for the calculation 5 times the number 29 and 14 minus 11

Mars2501 [29]

Answer: 5 x 29 14-11

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3 years ago

A linear function has a slope of Negative StartFraction 7 Over 9 EndFraction and a y-intercept of 3. How does this function comp

Svet_ta [14]

Answer:

They are the same line written in different forms.

Step-by-step explanation:

Given a linear function with a slope of $-\frac{7}{9}$ and a y-intercept of 3.

The equation of the line in the slope-intercept form is given as:

$y=-\frac{7}{9}x+3$

Given the other line,

$y+11=-\frac{7}{9}(x-18)$

Simplified:

$y+11=-\frac{7}{9}x+14\\y=-\frac{7}{9}x+14-11\\y=-\frac{7}{9}x+3$

The two lines are one and the same line.

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3 years ago

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Using the quadratic formula to solve 2x^2 = 4x – 7, what are the values of x?

LekaFEV [45]

For this case we have the following quadratic equation:

$2x ^ 2 = 4x - 7$

Rewriting the equation we have:

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

From here, we have:

$a=2 b = -4c = 7$

Substituting values in the quadratic equation we have:

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

$x = \frac{-(-4)+/-\sqrt{(-4)^2-4(2)(7)}}{2(2)}$

Rewriting the equation we have:

$x = \frac{4+/-\sqrt{16-56}}{4}$

$x = \frac{4+/-\sqrt{-40}}{4}$

$x = \frac{4+/-\sqrt{-4*10}}{4}$

$x = \frac{4+/-2i\sqrt{*10}}{4}$

$x = \frac{2+/-i\sqrt{*10}}{2}$

Answer:

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$x = \frac{2+i\sqrt{*10}}{2}$

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3 years ago

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Solve the inequalities.<br> 1. 3t ≤ 27<br> 2. y - 5 ≥ 0<br> 3. x + 4 < 10

PIT_PIT [208]

Solving an inequality is just like solving a normal two step equation.

1. T is less than or equal to 9.

2. y is greater than or equal to 5.

3. x is less than 6.

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3 years ago

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3³+1x9+12 answer please, I really think it's 48.

UNO [17]

Answer:

You are correct the answer is 48.

Step-by-step explanation:

To begin solving this question you would want to start simplifying it to make it more understandable.

3^3 is 27 which now gives you 27 + 1 x 9 +12 which makes it easier to solve.

Then you would take 1 x 9 = 9 (multiply left to right)

Now it is simple addition

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4 years ago

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