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sveta [45]
2 years ago
13

You invite your best friend Sheila out for a picnic on Thursday. Sheila tells you "If it rains, there is a 20% probability

Mathematics
1 answer:
den301095 [7]2 years ago
3 0

Answer: 56%

 

Probably that it will rain and she goes + probably that it will be sunny and she goes

 

=     0.4 * 0.2     +           0.6*0.8

 

=          0.08      +              0.48

 

=   0.56

 

56% chance

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enyata [817]

Answer:

2(7x-3)=9

14x-6=9

14x=9+6

14x=15

x=15/14

5 0
2 years ago
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Does taking ginkgo tablets (i.e., and extract from a tree species) twice a day provide significant improvement in mental perform
Dmitriy789 [7]

Answer:

D. These results do not provide good statistical evidence that taking ginkgo tablets twice a day provides some improvement in mental performance. If 200 tests are being performed at the 5% significance level, some are bound to show statistically significant results, even if the treatment does not have any effect. It is premature to draw statistical conclusions from this study in which the percentage of significant tests is about 5%.

Step-by-step explanation:

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5 0
3 years ago
Pls help! 16 points:)
kenny6666 [7]

Answer: 52 degrees

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7 0
2 years ago
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- 7(2-1) = 28<br> The solution is?
Aneli [31]

Answer:

Is there a x somewhere or is that litteraly how the equation is?

If so, -7 multiplied by 2 is -14,

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you could add 7 to both sides or subtract 28 from both sides and you'll get either 0=35 or -35=0

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6 0
3 years ago
What is x<br>-5(x-2)-(x-2)=50
stich3 [128]
X= -14/3 that's the answer there bud i need to make this 20 caracters longs so yeah x=-14/3
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3 years ago
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