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statuscvo [17]
3 years ago
6

120.4 divided by 4 in long division step by step PLEASE HELP I DONT UNDERSTAND

Mathematics
1 answer:
Assoli18 [71]3 years ago
7 0

Answer

30.1

Step-by-step explanation:

120/4=30

.4/4=.1

30+.1=30.1

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Line segment NY has endpoints N(-11, 5) and Y(3,-3).
777dan777 [17]

Given:

Line segment NY has endpoints N(-11, 5) and Y(3,-3).

To find:

The equation of the perpendicular bisector of NY.

Solution:

Midpoint point of NY is

Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)

Midpoint=\left(\dfrac{-11+3}{2},\dfrac{5-3}{2}\right)

Midpoint=\left(\dfrac{-8}{2},\dfrac{2}{2}\right)

Midpoint=\left(-4,1\right)

Slope of lines NY is

m=\dfrac{y_2-y_1}{x_2-x_1}

m=\dfrac{-3-5}{3-(-11)}

m=\dfrac{-8}{14}

m=\dfrac{-4}{7}

Product of slopes of two perpendicular lines is -1. So,

m_1\times \dfrac{-4}{7}=-1

m_1=\dfrac{7}{4}

The perpendicular bisector of NY passes through (-4,1) with slope \dfrac{7}{4}. So, the equation of perpendicular bisector of NY is

y-y_1=m_1(x-x_1)

y-1=\dfrac{7}{4}(x-(-4))

y-1=\dfrac{7}{4}(x+4)

y-1=\dfrac{7}{4}x+7

Add 1 on both sides.

y=\dfrac{7}{4}x+8

Therefore, the equation of perpendicular bisector of NY is y=\dfrac{7}{4}x+8.

6 0
3 years ago
In a sample of 77 children , the mean age as at which they first began to combine words was 16.51 months
astraxan [27]

Answer:

Mean age = 1271.27

Step-by-step explanation:

No of children = 77

The age at which children first began to combine words = 16.51 months

Mean age = No of children × age at which children first began to combine words

                = 77 × 16.51

                 = 1271.27

Mean age = 1271.27

7 0
3 years ago
F and g are inverse functions.<br> f(n) = -(n + 1)^3<br> g(n) = 3 + n^3<br> a) True<br> b) False
Sophie [7]

Answer:

false

Step-by-step explanation:

hello

if f and g are inverse then (fog)(n)=n

as (fog)(n) is different from n it is false

hope this helps

6 0
3 years ago
What is equivalent to 10x - (5x -1)
Alisiya [41]

Answer:

5x + 1  is the simplest form

Step-by-step explanation:

what is equivalent to 10x - (5x -1)

10x - (5x -1) = 10x  - 5x + 1

=  5x + 1

4 0
3 years ago
Read 2 more answers
How do you simplify <br> -5(a-6) + 2a
Vilka [71]
Easy, take your problem,

-5(a-6)+2a

Multiply the 5.

-5a+30+2a

Then just add apples and oranges.

-5a+2a= -3a.

Making your equation -3a+30.
4 0
3 years ago
Read 2 more answers
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