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3 years ago

Evaluate the following expression for a = 2 and b = -2 -a2- ab + b Helpppp meee please

Mathematics

1 answer:

nalin [4]3 years ago

3 0

Answer:

4+4-2=-2 because a=2 and b=-2

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What is this please help

sweet-ann [11.9K]

Answer:

Absolute value means how far are you from zero on the number line.

absolute value of | -18| for example is 18

this means that you are at -18 on the number line that is 18 points away from zero.

and absolute value of |18 | is 18

this means that you are at point 18 on the positive direction on the number line. That is 18 points away from zero.

Step-by-step explanation:

4 0

3 years ago

Can somone pls help me plssssss

jeka57 [31]

Answer:

$2\frac{2}{5}$

Step-by-step explanation:

12 divided by 5= 2.4

2 2/5

Hope this helps! :)

4 0

3 years ago

Read 2 more answers

1. Find the domain and range of the function<br> f(x)=√1-4x².

slamgirl [31]

$f(x) = \sqrt{1 - 4{ x}^{2} }$

$1 - 4x {}^{2} \geqslant 0$

$- \infty \: \: \: \: \: \: \: \: - 0.5 \: \: \: \: \: \: \: \: \: 0.5 \: \: \: \: \: \: \: \: \infty \\ - \: \: \: \: \: \: \: \: \: \: \: \: \: \:0 \: \: \: \: \: + \: \: \: \:0 \: \: \: \: \: -$

$domain \\ [ \: -0.5 \: , \: 0.5 \: ]$

$g(x) = 1 - 4x {}^{2} \\ g'(x) = - 8x \\ g'(x) = 0 \\ x = 0 \\ g(0) = 1 - 4(0) = 1 \\ maximum \: = 1$

$range \\ [ \: 0 \: , \: 1 \: ]$

5 0

2 years ago

Read 2 more answers

What happenens to the value of the expression 100 -x as x increases

garik1379 [7]

The value of the expression would decrease because if you add more to the smallest number in the subtraction problem the value or the answer decreases

6 0

3 years ago

Write 9x-3y=-69 x − 3 y = − 6 in slope-intercept form. Make sure you show all steps and inverse operations.Write 9x-3y=-69 x − 3

Goryan [66]

Answer:

y = 3x + 23 and

$y = \frac{1}{3}x + 2$

Step-by-step explanation:

The first equation is 9x - 3y = - 69 and we have to write it in slope-intercept form.

Now, 9x - 3y = - 69

⇒ 3x - y = - 23 {Dividing both sides by 3}

⇒ 3x + 23 = y

⇒ y = 3x + 23 {Interchanging the sides} (Answer)

The second equation is x - 3y = - 6 and we have to write it in slope-intercept form.

Now, x - 3y = - 6

⇒ x + 6 = 3y

⇒ 3y = x + 6 {Interchanging the sides}

⇒ $y = \frac{1}{3}(x + 6)$ {Dividing both sides by 3}

⇒ $y = \frac{1}{3}x + 2$ (Answer)

3 0

3 years ago