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Ilya [14]
3 years ago
6

Enrollment at Roosevelt Middle School is being reviewed by the school staff. The table gives the numbers of boys and girls in gr

ades 6 to 9.
Grade Girls Boys
6 9 12
7 12 18
8 15 20
9 25 36

In which two grades is the relationship between the numbers of girls and boys proportional?
Mathematics
1 answer:
tekilochka [14]3 years ago
8 0
Grades 6 and 8 have proportional ratio
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How do i find the decumal equivalent for 2 over 3
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To find the decimal equivalent for 2/3, you simply divide 2 by 3.
2 \div 3
After dividing, the decimal equivalent will be about 0.6666666667
3 0
3 years ago
If f(x) = 4x + 3 and g(x) = 3x, evaluate for X = -1/2
miskamm [114]

Answer:

 f(-\frac{1}{2}) = 1

g(-\frac{1}{2} ) = -\frac{3}{2}

Step-by-step explanation:

Given the function f(x) = 4x + 3 and the function g(x) = 3x, to evaluate for x=-\frac{1}{2}, you need to substitute it into each function.

Then, for the function f(x), when  x=-\frac{1}{2}, you get:

 f(-\frac{1}{2}) = 4(-\frac{1}{2}) + 3

 f(-\frac{1}{2}) = 4(-\frac{1}{2}) + 3

 f(-\frac{1}{2}) = -\frac{4}{2}+ 3

 f(-\frac{1}{2}) = -2 + 3

 f(-\frac{1}{2}) = 1

For the function g(x), when  x=-\frac{1}{2}, you get:

g(-\frac{1}{2} ) = 3(-\frac{1}{2})

 g(-\frac{1}{2} ) = -\frac{3}{2}

4 0
3 years ago
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Write 9-³ in standard form
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3 years ago
Consider the point P = (3,8) and the line L, given by the equation y = 3x -4.
Fofino [41]

Answer:

A parallel y = 3x-1

B perpendicular y = -1/3x+9

Step-by-step explanation:

y = 3x-4 is written in slope intercept form  (y=mx+b) so the slope is 3.

A.  If the lines are parallel they have the same slope

m parallel is 3

Using point slope form

y-y1 = m(x-x1)

y-8 = 3(x-3)

Distribute

y-8 = 3x-9

Add 8 to each side

y-8+8 = 3x-9+8

y = 3x-1

This is slope intercept form

B If we want perpendicular lines, the slope is the negative reciprocal

m perpendicular is -(1/3)  = -1/3

Using point slope form

y-y1 = m(x-x1)

y-8 = -1/3(x-3)

Distribute

y-8 = -1/3x+1

Add 8 to each side

y-8+8 = -1/3x+1+8

y = -1/3x+9

This is slope intercept form

3 0
3 years ago
The weights of a bat in a zoo are normally distributed with a mean of 2.2 pounds and a standard deviation of 0.3 pounds. About w
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The correct answer for the question that is being presented above is this one: "B. 68%." The weights of a bat in a zoo are normally distributed with a mean of 2.2 pounds and a standard deviation of 0.3 pounds. The percent of the bats at the zoo that weigh 1.9 pound and 2.5 pounds is <span>B. 68%</span>
3 0
4 years ago
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