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MatroZZZ [7]
2 years ago
13

PLEASE answer! Will give thanks (profile too) and 5-star rating (for sure) BRAINLIEST TOO if I have the option. Please answer. I

t MUST be a GOOD response.
Find the value of x in the quadrilateral so Mary knows the measures of the shape she must cut the glass. Show your reasoning.

Mathematics
1 answer:
Otrada [13]2 years ago
4 0

Answer:

148

Step-by-step explanation:

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Evaluate <br> -2/5-4/5+(-9/10)
Sphinxa [80]
ANSWER-

- 21/10 or -2.1









4 0
4 years ago
You are dealt one card from a 52-card deck. Find the probability that you are not dealt a non-picture card.
andreyandreev [35.5K]

Picture cards are Jacks, queens and Kings. There are 4 of each for a total of 12 picture cards.

52-12 = 40 non picture cards.

Probability of being dealt a non picture card would be 40/52

The probability of not being dealt a non picture card would be 1 - 40/52 = 12/52 = 3/13

Answer: 3/13

5 0
3 years ago
Rewrite 140^1/8 in radical form.
notka56 [123]
140^1/8 = \sqrt[8]{140} 
4 0
3 years ago
Read 2 more answers
BRAINLEST ANSWER!!
Elanso [62]

Answer: -2a,-2b

Step-by-step explanation:

8 0
3 years ago
An unknown radioactive element decays into non-radioactive substances. In 180 days the radioactivity of a sample decreases by 73
BigorU [14]

Answer:

  • half-life: 95.3 days
  • 60% life: 70.2 days

Step-by-step explanation:

a) The proportion remaining (p) after d days can be described by ...

  p = (1 -0.73)^(d/180) = 0.27^(d/180)

Then p=1/2 when ...

  0.50 = 0.27^(d/180)

  log(0.50) = (d/180)log(0.27)

  180(log(0.50)/log(0.27) = d ≈ 95.3

The half-life is about 95.3 days.

__

b) For the proportion remaining to be 60/100, we can use the same solution process. In the end, 0.50 will be replaced by 0.60, and we have ...

  d = 180(log(0.60)/log(0.27) ≈ 70.2 . . . days

60 mg will remain of a 100 mg sample after 70.2 days.

8 0
3 years ago
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