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Svetach [21]
3 years ago
13

A negative number is. A positive number

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
6 0
" The opposite of " could be the answer
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Parametros pára describir el movimiento
VikaD [51]

Answer:

Step-by-step explanation:

Parameters to describe the movement

6 0
3 years ago
It takes ten identical pieces to form a circular track for a pair of toy racing cars. If the inside arc of each piece is 3.4 inc
dsp73
 <span>Length of outer track = sum of length of 10 pieces = circumference of the outer circle 


if R is the Radius of outer circle then... 

Circumference of the outer track = 2pi*R 


Similarly the circumference of the inner track (with radius r) = 2pi*r 


length of each outer piece is 3.4 inch more than length of inner piece 

So total outer length is 10*3.4 =34 inches more than the inner length. 


=> Outer Circumference - Inner Circumference = 34 inches 

=> 2pi*R - 2pi*r = 34 

=> 2pi(R -r) = 34 

=> R-r = 34/2pi = 5.41 inches 

=> R-r = Width of the track = 5.41 inches</span>
6 0
3 years ago
Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth.
Readme [11.4K]
To determine the solution of the quadratic equation, use the quadratic formula which states that,
                                x = ((-b  +/- sqrt (b² - 4ac)) / 2a
From the equation, a = 1, b = 14, and c = 112. Substituting these to the quadratic formula,
                               x = <span>((-14  +/- sqrt (14² - 4(1)(12)) / 2(1) = indeterminate
Thus, the equation does not a real number solution. </span>
6 0
3 years ago
Read 2 more answers
A packing box has the dimensions 3 by 2 by 5 1/2 feet. What is the volume of the box?
dem82 [27]
As already mentioned, the volume for a rectangular prism, namely a box in this case, is just the product of its dimensions, length * width * height.

\bf \textit{volume of a rectangular prism}\\\\&#10;V=LWH\quad &#10;\begin{cases}&#10;L=length\\&#10;W=width\\&#10;H=height\\&#10;------\\&#10;L=3\\&#10;W=2\\&#10;H=5\frac{1}{2}&#10;\end{cases}\implies V=3\cdot 2\cdot 5\frac{1}{2}&#10;\\\\\\&#10;V=3\cdot 2\cdot \cfrac{5\cdot 2+1}{2}\implies V=6\cdot\cfrac{11}{2}\implies V=3\cdot \cfrac{11}{1}&#10;\\\\\\&#10;V=33

now, as far as another one... hmm is easier if you post in the channel, that way I can include any graphs if needed or tables and such.

so, what happens if you double up the dimensions?

\bf \textit{volume of a rectangular prism}\\\\&#10;V=LWH\quad &#10;\begin{cases}&#10;L=length\\&#10;W=width\\&#10;H=height\\&#10;------\\&#10;L=6\\&#10;W=4\\&#10;H=10&#10;\end{cases}\implies V=6\cdot 4\cdot 10\implies V=240\\\\&#10;-------------------------------\\\\&#10;\begin{cases}&#10;L=6(2)\\&#10;W=4(2)\\&#10;H=10(2)&#10;\end{cases}\implies V=6(2)8(2)10(2)\implies V=(2)(2)(2)6\cdot 8\cdot 10&#10;\\\\\\&#10;V=(8)6\cdot 8\cdot 10\implies V=(8)\stackrel{original~volume}{240}

notice, how many times the new size is, is 8 times the original.
6 0
3 years ago
Simplify <br> Help me this answer <br> Please!!!
Komok [63]

Answer:

(cos^2 y) /(1-sin y) = (1 - sin^2 y) / (1-sin y) = ((1-sin y)(1+sin y)) / (1-sin y) = 1+sin y

5 0
3 years ago
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