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AfilCa [17]
2 years ago
11

Which expression has a value of 20? O (16 – 8) x 2 +4 (16 – 8) x (2+4) 16 - 8 X (2+4) O 16 — (8 x 2 + 4)​

Mathematics
1 answer:
Paha777 [63]2 years ago
4 0

Answer:

(16-8)*(2+4) is the correct answer

SO it's A

Step-by-step explanation:

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Can some one please help me.
Otrada [13]
X = 29 and y = 101.

To find this, you need to set up an equation.

6x - 95 = 79. Once you solve this, x would equal 29.

Since 6x - 95 and y are on a straight line, they would have to equal 180. So you make another equation except you plug in 29 for x this time.

6(29) - 95 + y = 180. Once you solve this, y would equal 101.
6 0
3 years ago
A sample of computer tablet batteries has a mean battery life of 28 months and standard deviation of 4 months. What is the lifes
Ulleksa [173]

Using the Empirical Rule, it is found that the lifespans, in months, are given by:

1. 24 and 32.

2. 20 and 36.

3. 16 and 40.

<h3>What is the Empirical Rule?</h3>

It states that, for a normally distributed random variable:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of  the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

Hence, considering the mean of 28 months and the standard deviation of 4 months, the life spans are given by:

1. 24 and 32.

2. 20 and 36.

3. 16 and 40.

More can be learned about the Empirical Rule at brainly.com/question/24537145

5 0
2 years ago
A litre bottle of KERPOW washing up liquid costs £1.95.
Alex_Xolod [135]

Answer:

<u>500 washes</u>

Step-by-step explanation:

<u>Number of washes</u>

  • Total volume / Volume used each time
  • 5 L / 10 mL

But remember : 1 L = 1000 mL

  • 5000 mL / 10 mL
  • <u>500 washes</u>
4 0
2 years ago
What is 7 raised to the second power
zavuch27 [327]

Answer:

49

Step-by-step explanation:

7x7=49

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6 0
2 years ago
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BaLLatris [955]

Answer:

The RANGE of the function f is

A) [1, 3]

( :

6 0
3 years ago
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