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nasty-shy [4]
3 years ago
6

Evaluate. 418! 2!7! plzzzz helpppp

Mathematics
2 answers:
zavuch27 [327]3 years ago
7 0

Answer:

whatttttt6 whattttt whattt

ZanzabumX [31]3 years ago
7 0

59.7

Step-by-step explanation:

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Bob has a dog who weighs 12 pounds. His cat weighs 2/3 as much as the dog. How many pounds does his cat weigh?
zheka24 [161]
The dog weighs 12 lbs.
The cat weighs 2/3 as much as the dog


- Divide 12 by 3
= 4

- Then multiply by 2
= 8

His cat weighs 8 pounds.
5 0
3 years ago
College freshmen took a psychology exam. If the mean is 80, the SD is 10, and the scores have normal distribution, what percent
gayaneshka [121]

Answer:

  (a)  2%

Step-by-step explanation:

A score of 60 is 2 standard deviations below the mean (80 -2·10 = 60). The empirical rule tells you that 95% of the distribution is within 2 standard deviations of the mean. The remaining 5% is split evenly between those that are more than 2 SD above the mean and those that are more than 2 SD below the mean.

That tells you the percentage who failed is about 2.5%. The best answer choice is 2%.

_____

<em>Additional comment</em>

The empirical rule is a little bit sloppy, but it gets you in the ballpark. The actual percentage is closer to 2.275%.

6 0
2 years ago
Pleaee help me with this im stuck
AURORKA [14]

the answers are clear if you use priority and equation rules.

  1. q=11
  2. u=2
  3. a=13
  4. l=8
  5. s=12
6 0
3 years ago
Read 2 more answers
10
Natasha_Volkova [10]

Answer:

x = 2, y = -1.

Step-by-step explanation:

2x + y = 3

x  -   y  = 3

Adding the 2 equations eliminates y:

3x = 6

x = 2.

Substitute for x in the first equation:

2(2) + y = 3

y = 3 - 4

y = -1.

Check the results by substitution in equation 2:

2 - (-1)

= 2 + 1 = 3 .

Checks OK.

6 0
2 years ago
Read 2 more answers
Complete the steps to solve the inequality: 0.2(x + 20) – 3 &gt; –7 – 6.2x
sergeinik [125]
The answer is A.(x>-1.25)
5 0
3 years ago
Read 2 more answers
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