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GrogVix [38]
3 years ago
9

Charlie's teacher claims that he does not study you just guess it on the exam with 201 true-false questions Charlie answers 53.7

% of equations correctly calculator calculating using these results show that if we were really guessing they would be probably one in one chance and 7 that he would do well in this difficult evidence significant evidence that Charlie is just guessing why or why not​
Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer: No there isn't

Explanation:

A score of 53.7% is quite close to 50% and this is a true or false exam. Charlie could have easily gotten this result by indeed guessing and not studying. This test mark is therefore not high enough to disregard the teachers's claim. Were the results to be significantly high enough above 50% then it could be said that indeed Charlie does study for his exams.

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P+12=17 what does p equal in this situation ​
victus00 [196]

Answer:

5

Step-by-step explanation:

5+12= 17

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3 years ago
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I need help with geometry
ivolga24 [154]

Answer:

Choice A, x=1

Step-by-step explanation:

So, to start, there's two routes that you can take there. I am going to show one of these routes.

Within the image, you see two triangles, you are able to tell that these triangles share two of the same sides, because of congruency lines on each of them.

The first group of congruent sides have 1 line going through them, the second group has 2 lines going through them. Let's go with the first group.

With the first group, we are using the lines CB and FE, where the measurements on each of them are 3x+1 and x+3 respectively.

Since they are congruent, they are equal and we can just set them equal to each other.

Starting With:

3x+1 = x+3

Step 1) Cancel out the +1

3x+1 -1 = x+3 -1

3x = x+2

Step 2) Cancel out the x

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Step 3) Divide by 2 get x by itself

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All done!

5 0
3 years ago
What does 40 divided by 1+3-(3x7)+7-5 equal?
Serjik [45]
It equal to 24 because you have to multiply or divide first then you can add or subtract
6 0
3 years ago
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Galina-37 [17]

Answer

<h2>\sqrt{105}</h2>

Step by step explanation

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The product of roots with the same index is equal to root of the product

=  \sqrt{3 \times 5 \times 7}

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=  \sqrt{105}

Hope this helps...

Best Regards!

3 0
3 years ago
Use trigonometric ratios to solve the right triangle. Pls Help
s2008m [1.1K]
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cos60=DE/FE
1/2=DE/18 Root 3
DE= 18 Root 3/2
DE= 9 Root 3 units
5 0
3 years ago
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