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Fantom [35]
3 years ago
14

Math 7 . Grade 7

Mathematics
2 answers:
k0ka [10]3 years ago
7 0
We can combine like terms. -2y +2y cancels each other out and it is 0
 The remaining 10-8 is 2, so the answer is 2.
alukav5142 [94]3 years ago
4 0
It's just 2 because -2y and +2y cancel each other. 
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About 12% of individuals write with their left hands. If a class of 130 students meets in a classroom with 130 individual desks,
Lynna [10]

Answer:

0.1019

Step-by-step explanation:

Probability, p=12%=0.12

Sample size, n=130 students

Those writing with left=14 students

Using the formula for binomial distribution

P(X≤x)=\left[\begin{array}{}n\\x\end{array}\right]p^{x}(1-p)^{n-x}

Substituting 0.12 for p, 130 for n, 14 for x we obtain

P(X≤x)=\left[\begin{array}{}130\\14\end{array}\right]0.12^{14}(1-0.12)^{130-14}

P(X≤x)=130C14*0.12^{14}(0.88)^{116}

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3 years ago
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7 0
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kirza4 [7]
No, yes, no, yes

What part of comparing number values do you not understand? Most folks figure out enough about place value to be able to answer this by 3rd grade. If there's something about this question that really stumps you, please advise in the comments.
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3 years ago
A line has a y-intercept of 6 and a slope of 1/2. what is the equation in slope intercept form
Oksana_A [137]

Answer:

y= 1/2x+6

Step-by-step explanation:

Slope intercept form is y=mx+b, where m is the slope and b is  the y intercept. Using the information given, we know the slope-intercept form of the line is y=1/2x+6

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Recall that two angles are complementary if the sum of their measures is 90°. Find the measures of two complementary angles if o
nirvana33 [79]

Answer:

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Step-by-step explanation:

Write out the expression:

let x and y be two angles that are complementary and the sum of their measures is 90°

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if one angle is 6º more than three times the other angle:

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Plug x = 6+3y into x° + y° = 90°

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4 0
3 years ago
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