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sergey [27]
3 years ago
11

Jane has her height measured using a metric ruler as 1.6 meters. She would like to know her height in inches. She knows that the

re are 100 centmeters in a meter and 2.54 centimeters in an inch. Use these facts to find jane's height to the nearest inch. Show the work that leads to your answer.
Mathematics
1 answer:
slavikrds [6]3 years ago
4 0

Answer:

Jane's height is <u>63 inches</u>.

Step-by-step explanation:

Given:

Jane has her height measured using a metric ruler as 1.6 meters. She would like to know her height in inches. She knows that there are 100 centimeters in a meter and 2.54 centimeters in an inch.

Now, to find jane's height to the nearest inch.

The height of Jane measured using metric ruler = 1.6 meters.

As, 1 meter = 100 centimeters.

So, by using conversion factor we convert the height of Jane into centimeters from meters:

1.6\ meter=1.6\times 100

               =160\ centimeters.

<em>Height of Jane in centimeters = 160.</em>

As given, 2.54 centimeters in an inch.

Now, we convert the centimeters by using unitary method:

If, 2.54 centimeters = 1 inch.

Then, 1 centimeters =  \frac{1}{2.54} \ inch

So, 160 centimeters = \frac{1}{2.54}\times 160

=\frac{160}{2.54}

=62.99\ inches.

<em>Thus, the height nearest to inch = 63 inches.</em>

Therefore, Jane's height is 63 inches.

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Evaluate (15 – 4x) + 5 when x = 3.
Svetradugi [14.3K]

Answer:

The value is 8.

Step-by-step explanation:

ok so substitute the x=3, and work on the inside of parentheses

(15-4(3))+5

now multiply

(15-12)+5

now subtract

3+5

add

8

I hope this helps!!

Have a great day!!!

8 0
3 years ago
Read 2 more answers
Use the matrix method to solve the system of equations 2x + 4y = 8 and 6x + 3y = -3. The resulting matrix is:
nikklg [1K]
So we are given the system:
2x+4y=8\\&#10;6x+3y=-3
Written in matrix form we get:
\left[\begin{array}{cc}2&4\\6&3\end{array}\right] &#10;  \left[\begin{array}{c}x\\y\end{array}\right] =&#10;\left[\begin{array}{c}8\\-3\end{array}\right]
We compute the solution like this:
&#10;  \left[\begin{array}{c}x\\y\end{array}\right] =&#10; \left[\begin{array}{cc}2&4\\6&3\end{array}\right] ^{-1}&#10;\left[\begin{array}{c}8\\-3\end{array}\right]  \\=&#10;\left[\begin{array}{cc}-3&4\\6&-2\end{array}\right]&#10;\left[\begin{array}{c}8\\-3\end{array}\right] \dfrac{1}{18}\\=&#10;\left[\begin{array}{c}2\\-3\end{array}\right]
The solution is :
\left[\begin{array}{c}2\\-3\end{array}\right]
8 0
3 years ago
Find the domain of the function f(x)=<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%5E3-16x%7D" id="TexFormula1" title="\sqrt{x^3
Anon25 [30]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the function

f\left(x\right)=\sqrt{x^3-16x}

We know that the domain of the function is the set of input or arguments for which the function is real and defined.  

In other words,  

  • Domain refers to all the possible sets of input values on the x-axis.

Now, determine non-negative values for radicals so that we can sort out the domain values for which the function can be defined.

x^3-16x\ge 0

as x³ - 16x ≥ 0

\left(x+4\right)\left(x-4\right)\ge \:0

Thus, identifying the intervals:

-4\le \:x\le \:0\quad \mathrm{or}\quad \:x\ge \:4

Thus,

The domain of the function f(x) is:

x\left(x+4\right)\left(x-4\right)\ge \:0\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-4\le \:x\le \:0\quad \mathrm{or}\quad \:x\ge \:4\:\\ \:\mathrm{Interval\:Notation:}&\:\left[-4,\:0\right]\cup \:[4,\:\infty \:)\end{bmatrix}

And the Least Value of the domain is -4.

3 0
3 years ago
PLEASE HELP DUE IN 10 MINTUES SDJKFHKJSHDH
Alex_Xolod [135]

the 2nd answer makes the most since

6 0
3 years ago
9/10 = z/8 round to the nearest tenth
jeka57 [31]
9/10 = z/8

cross multiply

9/10(10)(8) = z/8(8)(10)

9(8) = z(10)

72 = 10z

Isolate the z, divide 10 from both sides

72/10 = 10z/10

z = 72/10

z = 7.2

7.2, or D) is your answer

hope this helps
4 0
3 years ago
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