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mel-nik [20]
3 years ago
11

Which expression is equivalent to -4(7-2m)+11m

Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:b

Step-by-step explanation:

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Find the volume of a pyramid with a square base, where the side length of the base is 10.6\text{ in}10.6 in and the height of th
Setler [38]

Answer:

460.7

Step-by-step explanation:

4 0
3 years ago
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Given an equation x3 - 8x2 - 9x + 72 = 0, find the zeros.
sveta [45]

Answer:

= 28/3

Step-by-step explanation:

Let's solve your equation step-by-step.

x(3)−(8)(2)−9x+72=0

Step 1: Simplify both sides of the equation.

x(3)−(8)(2)−9x+72=0

3x+−16+−9x+72=0

(3x+−9x)+(−16+72)=0(Combine Like Terms)

−6x+56=0

−6x+56=0

Step 2: Subtract 56 from both sides.

−6x+56−56=0−56

−6x=−56

Step 3: Divide both sides by -6.

−6x

−6

=

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−6

x=

28

3

Answer:

x=

28

3

7 0
3 years ago
To calculate the area of a triangle, you find the product of the base and height and then divide by two
SIZIF [17.4K]

Answer:

True

Step-by-step explanation:

Hope this helps! :)

4 0
3 years ago
I need help with this one
antiseptic1488 [7]

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-12

Step-by-step explanation:

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3 years ago
What are the diameters of the painting?<br> Easy!!!
zalisa [80]

x = 10.22 in

Solution:

Width of the figure = x in

Length of the figure = (2x + 5) in

Area of the figure = 260 in²

<u>To find the value of x:</u>

<em>Area of the figure = length × width</em>

length × width = 260

(2x + 5) × x = 260

2x^2+5x=260

Subtract 260 from both sides of the equation.

2x^2+5x-260=0

Factor the above quadratic expression.

Quadratic equation formula:

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

$x=\frac{-5 \pm \sqrt{5^{2}-4 \cdot 2(-260)}}{2 \cdot 2}

$x=\frac{-5 \pm \sqrt{2105}}{4}

$x=\frac{-5+\sqrt{2105}}{4}, \  x=\frac{-5-\sqrt{2105}}{4}

x = 10.22,   x = –12.72006

Dimension of the figure cannot be measured in negative terms.

Hence x = 10.22 in.

7 0
3 years ago
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