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emmasim [6.3K]
3 years ago
9

Which expression is equivalent to

Mathematics
1 answer:
BartSMP [9]3 years ago
8 0

Answer:

\large\boxed{D)\ x^2(3x^2+2x-9)-5x(3x^2+2x-9)}

Step-by-step explanation:

\text{Use the distributive property}\ a(b+c)=ab+ac.\\\\(x^2-5x)(3x^2+2x-9)=(x^2)(3x^2+2x-9)+(-5x)(3x^2+2x-9)

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Which expressions are equivalent to (4⋅a)⋅2?
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Answer:

8a

2(4a)

a(4x2)

a(8)

8 0
3 years ago
You are self-employed and report a taxable income of $120,000 in 2010. The Social Security tax rate for that year is 12.4% up to
Contact [7]

Answer:

120,000-106,800=13,200

6 0
3 years ago
1. If quadrilateral ABCD is rotated 270° clockwise about the origin, find the coordinates of B'.
Zielflug [23.3K]

Answer:

The coordinates of B' are (-3, 5).  

Step-by-step explanation:

For every 90 degrees rotated, the coordinate numbers switch and one is multiplied by -1, when clockwise it's the 2nd one, and when counterclockwise, it's the 1st.

4 0
3 years ago
Can someone please help me!
victus00 [196]

Answer:

33°

Step-by-step explanation:

11x = 1/2(x+63)

22x = x + 63

21x = 63

x = 3

IHJ = 11x

= 11(3) = 33°

8 0
4 years ago
You buy clothing at a sale you buy sneakers at 2/3 of their original price of $60 a sweater at 7/10 of its original price of $35
ozzi

Answer:

a. We spent all together 40.2+24.5+37.8=$102.50.

b. We saved 19.8+10.5+7.2=$37.50

c. \frac{102.50}{140}

Step-by-step explanation:

To find the amount we spend, we multiply the original price by the decimal conversion of each fraction. Then we add the amounts together.

  • Sneakers cost $60 and you bought them at 2/3=0.6666....

60(0.67)=$40.20 and saved $19.80

  • Sweater costs $35 and you bought it at 7/10=0.7

35(0.7)=$24.50 and saved $10.50

  • A jacket costs $45 and you bought it at 5/6=0.8333...

45(0.84)=$37.80 and saved $7.20

We spent all together 40.2+24.5+37.8=$102.50.

We saved 19.8+10.5+7.2=$37.50

We could of spent paying regular price 60+35+45=$140. To find the fraction we place the total we actually paid over the total regular price.

\frac{102.50}{140}



6 0
4 years ago
Read 2 more answers
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