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pychu [463]
3 years ago
14

Graph the function f(x)=2x5+2x +12

Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:

f(x) = 2x + 22, The slope is 2/1

Step-by-step explanation:

Start by combining common terms.

For example, you can't combine 2x and 5, because 2 is being multiplied by a variable.

So, take the x value: 2x

And the numerical values: 22

And combine them: f(x) = 2x + 22

This means, that you start at 22 on the y-axis and slope the line by 2/1. That means that, on a graph, the line goes up 2 points, then one point to the right.

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If Doris paid $12.80 for 6.4 pounds of Swiss cheese, what was the price of 1
m_a_m_a [10]

Answer:

2

Step-by-step explanation:

12.80=6.4x

12.8/6.4=2

x=2

7 0
3 years ago
several friends each had 2/5 of a bag of peanuts left over from the baseball game.they realized that they could have bought two
aleksandrvk [35]

Answer:

5 friends.

Step-by-step explanation:

Let x be the number of friends,

Since, each had 2/5 of a bag of peanuts left over,

Thus, the total numbers of bag left = 2/5 of the number of friends,

=\frac{2}{5}x

According to the question,

\frac{2}{5}x=2

\implies x = 5

Hence, there were 5 friends.

7 0
3 years ago
Read 2 more answers
If r1 and r2 are the roots of the quadratic equation ax+bx+c=0 show that r1+r2=-b/and r1r2=c/a
velikii [3]
x_{1,2} =  \frac{-b+-  \sqrt{ b^{2} -4ac} }{2a}

is the formula for calculating x1 and x2

To prove x1 + x2 = -b/a all we need to do is to express x1 and x2 from equation above

once we do we will get -2b/2a which is equal to -b/a because square root part will negate each other. one has + sign in front and other - sign

Showing that x1x2 = c/a goes similar way.
the numerator parts is actually difference of squares. after that we will have:
-b^2 -b^2 + 4ac = 4ac

in denominator we have 2a*2a = 4a^2
4ac/4aa = c/a
4 0
3 years ago
How do I solve this. Please help!!
11111nata11111 [884]

Answer:

x = 4\sqrt{2}

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = \frac{1}{\sqrt{2} } , then using the upper 45°

sin45° = \frac{opposite}{hypotenuse} = \frac{4}{x} = \frac{1}{\sqrt{2} } ( cross- multiply )

x = 4\sqrt{2}

4 0
3 years ago
Simplify: <br> (8)2(2)3<br> (4)3(-2)4
Lostsunrise [7]
1). (16)(6)

2). (12)(-8)
8 0
3 years ago
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