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4vir4ik [10]
3 years ago
8

100 points Solve for djjejerbehje

Mathematics
1 answer:
Nataly_w [17]3 years ago
7 0

\dfrac t{2.7} = \dfrac{4}{3.6}\\\\\\\implies t = \dfrac{ 4 \times 2.7}{3.6} \\\\\\\implies t = \dfrac{ 4 \times 27 \times \tfrac 1 {10}}{36 \times \tfrac 1{10}}\\\\\\\implies  t = \dfrac{4 \times 27}{4 \times 9 }\\\\\\\implies t =\dfrac{27}9\\\\\\\implies t = 3

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Are natural numbers always sometimes never rational numbers
Ipatiy [6.2K]
Natural numbers are always rational numbers,

Rational numbers can be defined as numbers that can be represented as a ratio of two integers. All natural numbers can be represented as a ratio because theycan be over one. For example, 3/1 or 19838645752641/1.
7 0
4 years ago
Find anequation for the perpendicular bisector of the line segment whose endpoints are(3, -1) and (-9,5).
Mariulka [41]

The perpendicular bisector goes through the midpoint.

What is the midpoint of the 2 points?

We simply add up the x points and divide by 2. Then we add up the y points and divide by 2.

So,

Midpoint is:

(\frac{3-9}{2},\frac{-1+5}{2})=(-3,2)

Also, the perpendicular bisector's slope is the negative reciprocal of the line's slope.

The slope of the line is change in y points divided by change in x points.

Slope =

\frac{5--1}{-9-3}=\frac{5+1}{-12}=\frac{6}{-12}=-\frac{1}{2}

The slope (m) of the perpendicular line (negative reciprocal) is basically:

2

Equation of line is:

y-y_1=m(x-x_1)

m is the slope (what we got "2")

x1 and y1 are the respective point where it passes through (which is the midpoint, which is (-3,2)

So, equation of perpendicular bisector is:

\begin{gathered} y-y_1=m(x-x_1) \\ y-2=2(x+3) \\ y=2x+6+2 \\ y=2x+8 \end{gathered}

4 0
1 year ago
a builder is building a fence with 6 and 1/4 inch wide wooden boards arranged side-by-side with no gaps. How many borders are ne
Ne4ueva [31]
<h2>Number of boards required is 24</h2>

Step-by-step explanation:

A builder is building a fence with 6 and 1/4 inch wide wooden boards arranged side-by-side with no gaps.

\texttt{Length of 1 board = }6\frac{1}{4}in\\\\\texttt{Length of 1 board = }\frac{6\times 4+1}{4}=\frac{25}{4}in

We need to build a fence that is 150 in long​.

Length of fence = Number of boards required x Length of 1 board

150=\texttt{Number of boards required }\times \frac{25}{4}\\\\\texttt{Number of boards required }=\frac{150\times 4}{25}\\\\\texttt{Number of boards required }=6\times 4=24

Number of boards required = 24

5 0
3 years ago
What is the range of y=2(x+7)^2-5?
strojnjashka [21]

Answer:

15.5 I think

Step-by-step explanation:

welp

4 0
3 years ago
20 kilograms to pounds
xeze [42]

Answer:

44.0925 pounds

Step-by-step explanation:

4 0
3 years ago
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