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UNO [17]
3 years ago
5

E(x) = -x + -6 Find e(-2)

Mathematics
2 answers:
jasenka [17]3 years ago
8 0

Answer:

I'm pretty sure it's -4

Step-by-step explanation:

If you substitute in -2, you get e(-2)= -(-2)+ -6

which is equal to 2-6

2-6=-4

Neko [114]3 years ago
5 0

Answer:

e(-2)=-4

Step-by-step explanation:

e(-2)=-(-2)+-6

=2-6

=-4

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Rounded to the nearest hundredth , what is the positive solution to the quadratic equation 0=2x^2+3x-8
elena-14-01-66 [18.8K]

The positive solution to the quadratic equation 2 x^{2}+3 x-8=0 is x = 1.39

<h3><u>Solution:</u></h3>

Given quadratic equation is 2 x^{2}+3 x-8=0

<em><u>The general quadratic equation is of form:</u></em>

a x^{2}+b x+c=0

Now comparing the general equation with the given equation we get

a = 2 , b = 3 and c = -8

<em><u>The formula to determine roots of the quadratic equation is:</u></em>

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

On plugging in vlaues, we get

x=\frac{-3 \pm \sqrt{3^{2}-4 \times 2 \times(-8)}}{2 \times 2}

\mathrm{x}=\frac{-3 \pm \sqrt{9-(-64)}}{4}

On solving we get,

\begin{array}{l}{\mathrm{x}=\frac{-3 \pm \sqrt{9+64}}{4}} \\\\ {\mathrm{x}=\frac{-3 \pm \sqrt{73}}{4}}\end{array}

\mathrm{x}=\frac{-3+\sqrt{73}}{4} \text { OR } \mathrm{x}=\frac{-3-\sqrt{73}}{4}

x = 1.39  OR  x = -2.89  

Hence , the positive solution to the quadratic equation  is x = 1.39

7 0
4 years ago
Share 80 in ratio 5:3
bija089 [108]
5X+3X=80
8X=80
X=10
5×10=50
3×10=30
50 and 30
7 0
3 years ago
Read 2 more answers
Can any please help me with this god bless!
Katen [24]

Answer:

What do you need help with?

Step-by-step explanation:

8 0
3 years ago
I. NEED. HELP! PLEASE!
mamaluj [8]

Answer:

x = 2.5

Step-by-step explanation:

We know the adjacent and the opposite sides to the angle in a right triangle

tan theta = opp / adj

tan 26 = 1.2 /x

x tan 26 = 1.2

x = 1.2 / tan 26

x =2.46036461

Rounding to the nearest tenth

x = 2.5

5 0
3 years ago
Read 2 more answers
Please Help it’s Urgent
katen-ka-za [31]
The answer is “B” because if you do the work correctly that will be your outcome
4 0
3 years ago
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