All categories

3 years ago

What's the simplest form of 28/49, 96/144, 40/45

Mathematics

2 answers:

-Dominant- [34]3 years ago

6 0

4/7 for the 1st one., 8/9 for he 3rd dunno about middle one soz

anzhelika [568]3 years ago

3 0

28/49 = 4/7
96/144= 2/3
40/45= 8/9

You might be interested in

Please Help To Find That Question...

allochka39001 [22]

V = ( $\pi$ r^2) (h/3)

so $( \pi \frac{3}{4} ^{2} )3/3 = 1.77$

6 0

3 years ago

Read 2 more answers

As John walks 16 ft towards a chimney, the angle of elevation from his eye to the top of the chimney changes from 30° to 45°. Id

levacccp [35]

ANSWER

The height is $22ft$

EXPLANATION

Let the height of the chimney be x.

$\tan(45 \degree) = \frac{x}{y}$

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

$x = y$

$\tan(30 \degree) = \frac{x}{16+ y}$

$\frac{ \sqrt{3} }{3} = \frac{x}{16 + y}$

Cross multiply

$\sqrt{3} (16 + y) = 3x$

$16 \sqrt{3} + y \sqrt{3} = 3x$

Put

$y = x$

into the equation;

$16 \sqrt{3} + x \sqrt{3} = 3x$

Group similar terms:

$16 \sqrt{3}= 3x - x \sqrt{3}$

$16 \sqrt{3}= (3 - \sqrt{3})x$

$\frac{16 \sqrt{3} }{3 - \sqrt{3} } = x$

$x=21.856$

The height of the chimney to the nearest feet is 22

6 0

3 years ago

If two lines intersect in one point, then exactly one plane contains both lines.

horsena [70]

The answer is theorem.

5 0

3 years ago

Which series of transformations results in the image being congruent to the pre-image?

erik [133]

For the element to be congruent only rotations, reflections or translations are allowed to be applied
1)
(x, y) → (x, –y)=reflection
(x, y) → (x + 5, y)=translation
(x, y) → (–x, y)=reflection
->is congruent
2)
(x, y) → (x + 1, y)=translation
(x, y) → (–x, –y)=reflection
(x, y) → (2x, y)=scaling->can't be congruent
3)
(x, y) → (0.5x, 0.5y)=scaling->can't be congruent
(x, y) → (x, –y)
(x, y) → (x, y + 8)
4)
(x, y) → (x – 4, y)=translation
(x, y) → (x, y + 3)=translation
(x, y) → (3x, 3y)=scaling->can't be congruent

so 1) is the only series of transformations with a congruent solution

4 0

3 years ago

Read 2 more answers

I don't know how to show the work for this problem. can anyone help me

Contact [7]

I would rewrite the question then show how you got your answer

7 0

3 years ago