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Liula [17]
3 years ago
6

What is the length of DE

Mathematics
1 answer:
Tems11 [23]3 years ago
5 0

nce BE=EC, BC = 2BE. According the principle of proportionality of triangle,BE/DE=BC/AC.

This can be re-written as:

BE/DE= 2BE/ AC

DE= AC * (BE/2BE)

DE= AC * (0.5)

Since we do not know the value of AC from statement (2) therefore not sufficient. However substituting the value of AC from statement (1), we get DE= 14 * 0.5 = 7

Therefore answer is C, both statements together are sufficient but neither alone is sufficient.

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A 10 sided die is numbered 1-10 if you roll it 60 times what is the best prediction for how many times you would eithrr a 1 or 2
Kamila [148]

Answer: 12

Step-by-step explanation:

So if its 1-10, and you can either roll a 1 or 2, it would be 2/10, then simplified to 1/5, and in order to get the answer you need to multiply it by 60

1/5 x 60/1 = 12

(sorry if I got it wrong, feel free to correct me if I did)

8 0
3 years ago
..A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the
monitta
28:36, I hope this helps if it doesn't then tell me.
5 0
3 years ago
Read 2 more answers
If a ∥ b and e ∥ f, what is the value of y?<br><br> I'll give you brainliest if you answer correctly
Shalnov [3]

Answer:

D 92.

Step-by-step explanation:

if a || b  and e || f

THEN...

x + 1 = y

y + z = 180

z = x - 3

x = 91

y = 92

z = 88

answer is 92

5 0
3 years ago
Write x4 * x2 without exponents.
AveGali [126]

Hey there!

It’s very much impossible to make this equation without it being an exponent because the result has an exponent in it itself

x⁴ × x²

= (x × x × x × x) + (x × x)

≈ x⁴ ⁺ ²

≈ x⁶

Therefore, the answer should be: x⁶


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

7 0
2 years ago
Customers at your store select their groceries from shelves and then pay. Sales records and records of restocks for Flaming Roas
ioda

Answer:

  • <em>The net change in how many bags are on the shelf, from the beginning of Tuesday to the end of Monday is -</em><u>2.</u>

Explanation:

The change in the number of bags any day is the number of bags is equal to the number of bags purchased to restock less the number of bags sold that day.

  • Change = bags purchased to restock - bags sold

At the end of <em>Tuesday</em>, the change is:

  • Restock:    6
  • Sales:        5
  • Change:    6 - 5 = 1    (note that this means that the number of bags increases by 1)

At the end of <em>Wednesday</em>, the change is:

  • Restock:    12
  • Sales:        8
  • Change:    12 - 8 = 4    (the number of bags increases by 4)

At the end of <em>Thursday</em>, the change is:

  • Restock:    12
  • Sales:        2
  • Change:    12 - 2 = 10    (the number of bags increases by 10)

At the end of <em>Friday</em>, the change is:

  • Restock:    18
  • Sales:        19
  • Change:    18 - 19 = - 1    (the number of bags decreases by 1).

At the end of <em>Saturday</em>, the change is:

  • Restock:    24
  • Sales:        22
  • Change:    24 - 22 = 2    (the number of bags increases by 2).

At the end of <em>Sunday</em>, the change is:

  • Restock:    0
  • Sales:        15
  • Change:    0 - 15 = - 15    (the number of bags decreases by 15).

At the end of <u>Monday</u>, the change is:

  • Restock:    0
  • Sales:        3
  • Change:    0 - 3 = - 3    (the number of bags decreases by 3).

The net change in how many bags are on the shelf, from the beginning of Tuesday to the end of Monday equals the algebraic sum of every change:

  • Net change = 1 + 4 + 10 + (-1) + 2 + (-15) + (-3)
  • Using associative property: (1 + 4 + 10 + 2) - (1 + 15 +3)
  • Simplifying: 17 - 19 = -2

<u>Conclusion</u>: the net change in how many bags are on the shelf, from the beginning of Tuesday to the end of Monday is -2, meaning that the number of bags, after taking into account all sales and restock, decreases by 2.

5 0
3 years ago
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