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Ivan
3 years ago
8

Sarah visited an art gallery and wanted to buy several paintings, but due to their cost, she decided to buy some postcards of th

e paintings at a much lower cost. The postcards are
3 inches by 5 inchres, which is the size of the original paintings.
What are the dimensions of the original paintings?

Α. 8 inches by 15 inches

В. 10.5 inches by 17.5 inches

C. 13 inches by 16 inches

D. 21 inches by 35 inches
Mathematics
1 answer:
solmaris [256]3 years ago
5 0

Answer:

Step-by-step explanation:

did u find the answer

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horrorfan [7]
The answer to ur question is 1.77309723E28.
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4 0
3 years ago
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suppose that the local sales tax rate is 6.25% and youpurchased a used carr for 16,800. what is the car's total cost
Gwar [14]

Total= Car Cost + (Car Cost * Tax %)


Total= $16,800 + ($16,800 * 6.25%)

convert % to decimal form; divide % by 100


Total= $16,800 + ($16,800 * 0.0625)

multiply inside parentheses


Total= $16,800 + $1,050


Total= $17,850



ANSWER: The total cost for the used car with tax is $17,850.


Hope this helps! :)


8 0
4 years ago
Complete the following exercises by applying polynomial identities to complex numbers. Factor x2 + 64. Check your work. Factor 1
Mumz [18]
x^2+64=x^2-(8i)^2=(x-8i)(x+8i)

16x^2+49=(4x)^2-(7i)^2=(4x-7i)(4x+7i)

(x+9i)^2=x^2+2x\cdot9i+(9i)^2=x^2+18xi+81i^2=x^2+18xi-81=x^2-81+18xi

(x-2i)^2=x^2-2x\cdot2i+(2i)^2=x^2-4xi+4i^2=x^2-4xi-4=x^2-4-4xi

(x+(3+5i))^2=x^2+2x(3+5i)+(3+5i)^2\\\\=x^2+6x+10xi+3^2+2\cdot3\cdot5i+(5i)^2\\\\=x^2+6x+10xi+9+30i+25i^2=x^2+6x+10xi+9+30i-25\\\\=x^2+6x+10xi+30i-16=x^2+6x-16+(10x+30)i


Used:\\i^2=-1\\\\a^2-b^2=(a-b)(a+b)\\\\(a+b)^2=a^2+2ab+b^2
4 0
3 years ago
Read 2 more answers
Please help with 1 and 2 :)
nordsb [41]

Answer:

1. The domain for the number of fruit cups is 0 minimum and 20 maximum.

   [0 < x < 20].

2. [10 < y < 70]

Step-by-step explanation:

1. The domain is 0 to 20 because there are 20 people total who will each have a fruit cup

2. The range is $10 to $70 because the minimum price is $10 without any fruit cups and $70 when there are 20 fruit cups.

4 0
3 years ago
75 POINTS!!! PLEASE ANSWERl
denpristay [2]

Answer:

67th percentile

Step-by-step explanation:

If the mean is 8 with a standard deviation of 1.5, the percentile rank of a shoe with at least a size of 9 is 66.6 repeating, or 67th if rounded.

4 0
3 years ago
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