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vovikov84 [41]
3 years ago
15

Select ALL the correct answers. Select all the expressions that are equivalent to the polynomial below. 4(x − 4) − 2(3x2 + 3x −

20) 4(x − 4) + 2(3x2 + 3x − 20) (11x2 + 7x − 55) − (5x2 − 3x + 1) (3x2 + 5x − 28) − (2x2 + 4x + 28) (11x2 + 7x − 55) + (5x2 − 3x + 1) (3x2 + 5x − 28) + (3x2 + 5x − 28)
Mathematics
2 answers:
maw [93]3 years ago
8 0

Answer:

Where are the answer options and this is too confuseing for me?        

Step-by-step explanation:

Schach [20]3 years ago
5 0
What? Is this one question? What are u asking
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Are 6 exponent 3 and -x exponent 3 alike
amid [387]

Answer:

.

Step-by-step explanation:

6^3 = 216

(-x)^3 = - x^3.

5 0
3 years ago
A company produces metal slabs for industrial use. The slabs come in three thicknesses: 5in, 10in., 15 in. The weights of each t
Dimas [21]

5, 10 ,15  

divide each by 5

1,2, 3

so the ratios should be 1,2,3

Metal 1 : divide by 150

1,2,4

Metal 2 divide by 130

1,2,3

Metal 3  divide by 310

1,2,3

Metal 4 divide by 140

1,2,3

Metal 1 is not proportional

Choice A

4 0
3 years ago
The masses mi are located at the points Pi. Find the moments Mx and My and the center of mass of the system. m1 = 4, m2 = 3, m3
viva [34]

Answer:

M_x= 8

M_y = 6

Therefore the co-ordinate of the center of mass is = (\frac{4}{5},\frac{3}{5})

Step-by-step explanation:

Center of mass: Center of mass of an object is a point on the object. Center of mass is the average position of the system.

Center of mass of a triangle is the centriod of a triangle.

Given that m₁= 4, m₂=3, m₃=3 and the points are P₁(2,-3), P₂(-3,1) and P₃(3,5)

M_x = ∑(mass × x-co-ordinate)

M_y = ∑(mass × y-co-ordinate)

Therefore  

M_x = (4×2)+{3×(-3)}+(3×3)

     =8

M_y = {4×(-3)}+{3×1}+(3×5)

    =6

The x co-ordinate of the center of mass is the ratio of M_x to the total mass.

The y co-ordinate of the center of mass is the ratio of M_y to the total mass.

Total mass (m) = m₁+ m₂+ m₃

                        = 4+3+3

                        =10

The x co-ordinate of the center of mass is \frac {8}{10} = \frac {4}{5}

The y co-ordinate of the center of mass is \frac{6}{10}=\frac{3}{5}

Therefore the co-ordinate of the center of mass is = (\frac{4}{5},\frac{3}{5})

4 0
3 years ago
Find the sum of the prime numbers that are between 12 and 42.
Zielflug [23.3K]

Answer:

<h2>210</h2>

Step-by-step explanation:

list of prime #s between 12 and 42:

13, 17, 19, 23, 29, 31, 37, 41

now add them up:

13+17+<em>19</em>+<u>23</u>+<em>29+31</em>+<u>37</u>+<em>41</em>

30+60+60+60

90+120

210

3 0
3 years ago
Read 2 more answers
a piece of stained glass in the shape of a right triangle has sides measuring 8 cm, 15 cm, and 17cm. what is the area of the pie
Hoochie [10]
Area:LW
8*15=180
<span>8 is the length,15 is the Width,17 is the hieght </span>
6 0
2 years ago
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