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4 years ago

7

Applewood Elementary boasts a student to teacher ratio of 14 : 1. What percent of the school makes up the number of teachers at

Applewood Elementary? (Round percent to the nearest tenth.)

1 answer:

strojnjashka [21]4 years ago

3 0

That would be 100/15, about 6,7%.

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-4x^2 (3x^2 + 25x - 7)

disa [49]

In the instructions for this problem I am told to distribute -4x^2. Why?
the order of operations is the order in which to simlify
if you look inside the parenthases, all like terms have been combined so the inside of parenthasees have already been simlified
expanding the exponents won't make it any easier so we move to distriubiting (or mulitplying)
so then the next step is mulitply -4x^2 by the trinomial

<span>In the order of operations you must do problems inside parentheses first. Why does multiplying monomials by polynomials change this? </span>multiplying monomails by polynomials does not change this

<span>Would the answer come out different if I did the work according to the order of operations?
no because distributing first is what you should do if you follow order of operations
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3 years ago

What is a prediction that suggests what you expect will happen? PLZ help.

mel-nik [20]

A prediction that suggests what you expect will happened is called a Conjecture.

It is different from probability.

8 0

3 years ago

What is the algebraic representation (rule) of a figure that has been dilated using a scale factor of 2?

Illusion [34]

Answer:

Okay 2

Step-by-step explanation:

Okay since that is that you gotta that 23u172, got it?

5 0

3 years ago

Find the angle complementary to the angle 80°. A. 90° B. 180° C. 10° D. 100°

Alex_Xolod [135]

Complementary Angles is a pair of any two acute angles that add up to make 90 degrees

90-80 = 10

the angle is 10 degrees

C is the correct answer

4 0

3 years ago

Read 2 more answers

Indicate the equation of the line, in standard form, that is the perpendicular bisector of the segment with endpoints (4, 1) and

jenyasd209 [6]

Equation of a line is $x+3y =-3$ .

<h3>What is a perpendicular bisector of the line segment?</h3>

A perpendicular bisector is a line that cuts a line segment connecting two points exactly in half at a 90 degree angle. To find the perpendicular bisector of two points, all you need to do is find their midpoint and negative reciprocal, and plug these answers into the equation for a line in slope-intercept form.

Given that,

Endpoints of the line segment are ( $x_{1},y_{1}$ ) = (4, 1) and ( $x_{2},y_{2}$ ) = (2, -5).

First find the midpoints of the given line segment.

M = $\left(\frac{x_{1}+x_{2} }{2},\frac{y_{1}+y_{2} }{2}\Right)$

= $\left(\frac{4+2 }{2},\frac{1-5 }{2}\Right)$

M = $(3,-2)$

Now, Find the slope of the line :

It is perpendicular to the line with (4,1) and (2,-5)

Slope between ( $x_{1},y_{1}$ ) and ( $x_{2},y_{2}$ ) = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

so,

the slope between (4,1) and (2,-5) = $\frac{-5-1 }{2-4 }$

= 3

perpendicular lines have slopes the multiply to get -1

3 times m=-1

m= $\frac{-1}{3}$

The equation of a line that has a slope of m and passes through the midpoints M(3,-2) is

$y-y_{1} =m(x-x_{1} )$

$y-(-2) =\frac{-1}{3} (x-3 )$

$(y+2) =\frac{-1}{3} (x-3 )$

if we want slope intercept form

$(y+2) =\frac{-1}{3} x+1$

$y= \frac{-1}{3} x-1$

If we want standard form

$\frac{1}{3} x+y = -1$

$x+3y =-3$

Hence, Equation of a line is $x+3y =-3$ .

To learn more about perpendicular bisector of the line segment from the given link:

brainly.com/question/4428422

#SPJ4

7 0

1 year ago