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never [62]
2 years ago
11

20 POINTS & BRAINLIEST TO WHO EVER SOLVE

Mathematics
1 answer:
Zigmanuir [339]2 years ago
4 0

Answer:

PQ = 20 cm

QR = 15 cm

Step-by-step explanation:

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If 900 square centimeters of material is available to make a box with a square base and an open top, find the largest possible v
pentagon [3]

Answer:

1400

Step-by-step explanation:

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2 years ago
Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 4,9,14,
scZoUnD [109]

Answer:

It is an arithmetic sequence and the common difference is 5

Step-by-step explanation:

4+5 = 9; 9+5=14 (adding is arithmetic, multiplying is geometric)

7 0
2 years ago
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Find the values of x when y=1
kirill [66]

Answer:

x=1+\sqrt{5}, 1-\sqrt{5}

Step-by-step explanation:

  1. x^{2} -2x-4=0
  2. (x-1)^{2} -1-4=0
  3. (x-1)^{2} -5=0
  4. (x-1)^{2} =5
  5. x-1=\sqrt{5} ,-\sqrt{5}
  6. x=1+\sqrt{5} , 1-\sqrt{5}

<u>FINAL ANSWER</u>

x=1+\sqrt{5} , 1-\sqrt{5}

<u><em>In Decimal Form (Rounded to 3 significant figures)</em></u>

<em>x≈-1.24, 3.24</em>

6 0
3 years ago
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The original pulse rates are measure with units of​ "beats per​ minute". what are the units of the corresponding z​ scores? choo
posledela
the complete question is

 Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute. The original pulse rates are measure with units of "beats per minute". What are the units of the corresponding z scores? Choose the correct choice below.

A. The z scores are measured with units of "beats per minute."

B. The z scores are measured with units of "minutes per beat."

C. The z scores are measured with units of "beats."

D. The z scores are numbers without units of measurement.

we know that

A z-score is the number of standard deviations from the mean a data point is. But more technically it’s a measure of how many standard deviations below or above the population mean a raw score is

The z scores are numbers without units of measurement

therefore

the answer is the option D

8 0
3 years ago
Students at a local elementary school were shown a painting and asked which emotion—joy, happiness, love, or anger—they felt by
Ilya [14]

Answer:

28/89

Step-by-step explanation:

8 0
3 years ago
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