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Zielflug [23.3K]
2 years ago
13

Please help me quick please i don't understand

Mathematics
1 answer:
Shtirlitz [24]2 years ago
7 0
Square root of 15 is an irrational number.
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Explain how you can use a model 4 x 1/3
Romashka-Z-Leto [24]

You can use it to find the area of something



5 0
3 years ago
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What is the root?<br> <img src="https://tex.z-dn.net/?f=3-%20%5Csqrt%7Bx%7D%20%3D0%20" id="TexFormula1" title="3- \sqrt{x} =0 "
irga5000 [103]
To solve for x, add 3 to both sides, multiply both sides by -1, then take the square both sides.
3- \sqrt{x} =0\\- \sqrt{x} =-3 \\  \sqrt{x} =3 \\ x=3^2=9

4 0
2 years ago
Elaine is taking a test that has multiple choice questions,each with 4 answer choices. She comes to a question for which she doe
jekas [21]

Assuming There is ONLY ONE CORRECT ANSWER,

The probability of her guessing the answer without ruling out the choices is 1/5.

if 3 choices are ruled out, then 1 out of the remaining two is right, which gives the probability 1/2

now, 1/5 = 20% , while 1/2 = 50%.

Therefore her probability of getting the correct answer improves by 30% [ not much in a REAL test though :P ]

5 0
2 years ago
PLEASE HURRY WILL GIVE BRAINLIEST <br> What is the solution of
ANTONII [103]

Answer:

  • Option A

Step-by-step explanation:

<u>Find zeros first:</u>

  • x² + x - 6 = x² + 3x - 2x - 6 = x(x + 3) - 2(x + 3) = (x - 2)(x + 3)
  • x = 2, x = -3, x = 7 (but x ≠ 7 as no division by zero)

<u>We have 4 intervals:</u>

  • x ≤ - 3, three negatives, the result is negative or zero
  • -3 ≤ x ≤ 2, two negatives and one positive, the result is positive or zero
  • 2 ≤ x < 7, two positives and one negative, the result is negative or zero
  • x > 7, three positives, the result is positive or zero

<u>The solution is:</u>

  • x ≤ - 3 or 2 ≤ x < 7

Correct choice is A

8 0
2 years ago
Can someone please answer i will mark brainliest
Dmitrij [34]
A) 2007
b) 120
c) the donations are decreasing as years increase
7 0
2 years ago
Read 2 more answers
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