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3 years ago

The relationship between the number of pounds (lb) of trail mix and the price

Mathematics

1 answer:

Norma-Jean [14]3 years ago

5 0

I think it should be B, let me know if it’s right

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2 4/7 divided by 2 2/9. PLEASE HELP.

Tju [1.3M]

You don’t know well I will help you out first

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3 years ago

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Amanda [17]

Set the equations equal to one another and solve for x

4x + 4 = -3x - 3

7x + 4 = -3

7x = -7

x = 1

Now pulg x into one of the equations:

y = 4(-1) + 4

y = -4 + 4 = 0

THe answer is now (-1, 0)

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3 years ago

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What are the solutions of the equation x4 + 3x2 + 2 = 0? Use u substitution to solve. x = plus-or-minus i StartRoot 2 EndRoot an

Rom4ik [11]

Answer:

$x=\pm\sqrt{2}i\text{ (or) }x=\pm i$

Step-by-step explanation:

We have been given an equation $x^4 + 3x^2 + 2 = 0$ . We are asked to find the solutions of our given equation using u-substitution.

We can rewrite our given equation as:

$(x^2)^2+3x^2+2 = 0$

Let us assume that $u=x^2$ .

$u^2+3u+2 = 0$

$u^2+2u+u+2 = 0$

$u(u+2)+1(u+2) = 0$

$(u+2)(u+1) = 0$

$(u+2)=0\text{ (or) }(u+1) = 0$

$u=-2\text{ (or) }u=-1$

Upon substituting back the value of u, we will get:

$x^2=-2\text{ (or) }x^2=-1$

$x=\pm\sqrt{-2}\text{ (or) }x=\pm\sqrt{-1}$

$x=\pm\sqrt{-1\cdot 2}\text{ (or) }x=\pm\sqrt{-1}$

Now we will use imaginary unit i. We know that $i^2=-1$ .

$x=\pm\sqrt{i^2\cdot 2}\text{ (or) }x=\pm\sqrt{i^2}$

$x=\pm\sqrt{2}i\text{ (or) }x=\pm i$

Therefore, the solutions for our given equation are $x=\pm\sqrt{2}i\text{ (or) }x=\pm i$ .

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3 years ago

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Triangle ABC is a sketch of a triangular flower bed that has an area of 65.1 square feet. Triangle A B C is shown. The length of

Mazyrski [523]

Answer:

40 feet

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. There are different types of triangles such as isosceles triangle, equilateral triangle, scalene triangle, right angled triangle.

The area of triangle ABC is given as:

Area = (1/2) * AC * BC * sin(C)

But C = 50°, Area = 65.1 ft², BC = 10 ft, AC = b, AB = 13 feet.

Substituting gives:

65.1 = (1/2) * b * 10 * sin(50)

3.83b = 65.1

b = 17 ft

Perimeter of ΔABC = AB + AC + BC = 17 + 13 + 10

Perimeter of ΔABC = 40 feet

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3 years ago

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kipiarov [429]

The slope of this line is -1 you find this by using the slip formula of y-y over x-x find two points on the line so I used points (-2,2) and (-1,1) plug them into the formula to get the slope of -1 hope this helps:)

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3 years ago

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