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devlian [24]
3 years ago
12

Please please help and explain! I will mark Brainliest.

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0

Answer:

Decay

3

Step-by-step explanation:

harina [27]3 years ago
3 0
1st is Decay and the second part is by 3 by multiplication. 3•3= 9 9•3= 27•3 =81 and so on.
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You want to paint your basement bright orange for your birthday party. The orange paint shade you like uses 3 parts red and 5 pa
lyudmila [28]

Answer:

Step-by-step explanation:

6 cups red

4 0
3 years ago
Read 2 more answers
QUADRATIC FORMULA SIMPLIFIED PLZ HELP
olga2289 [7]

Answer:

  • 3x² + 5x + 1 = 0 simplified
  • x = (-5 ± \sqrt{13})/6 roots

Step-by-step explanation:

<u>Given quadratic formula</u>

  • 3x² + 5x - 5 = - 6

<u>Standard form</u>

  • ax² + bx + c = 0

<u>Simplifying</u>

  • 3x² + 5x - 5 + 6 = 0
  • 3x² + 5x + 1 = 0

<u>Solving</u>

  • x = (-5 ± \sqrt{5^2 -4*3*1})/(2*3)
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6 0
3 years ago
Unit rate 9 strikes in 3 innings
Annette [7]
The unit rate is 3 strike in 1 inning.
6 0
3 years ago
Find the area, correct to the nearest square
Lady bird [3.3K]

Answer:

1269 square meters

Step-by-step explanation:

The path and the plot of land form two concentric circles (they have the same center). The radius of the plot of land is 100m (half of the diameter) and the radius of the larger circle, formed by putting a 2m wide path around the plot of land, is 102m. Thus, the area of the path is \pi *102^2 minus \pi *100^2 which will be 10404\pi-10000\pi which is 404\pi. Estimate \pi to 3.141 and calculate, getting 1268.964... which is 1269, rounded to the nearest square meter.

Hope this helps :)

7 0
3 years ago
How would you also do this??
Vesna [10]

4(5x + 7) = 128

First, I'd do distributive property and get:

20x + 28 = 128

Then, subtract 28 from each side.

20x = 100

Next, I'd divide 100 by 20 = 5

x = 5

4 *(5(5) + 7) = 128

5 * 5 = 25

4 * (25 + 7)

4 * 32 = 128

Therefore, the perimeter = 2l + 2w

l = 4

w = 5x + 7

BUT we know that x = 5

w = 5(5) + 7 = 32

2(4) + 2(32)

8 + 64 = 72

Therefore, the perimeter would be 72 inches.

5 0
4 years ago
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