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3 years ago

Are the numbers 4/7 and 10/17.5 a proportion? Same question for the following....

Mathematics

2 answers:

zhenek [66]3 years ago

8 0

Proportional:

4/7 and 10/17.5
2/3 and 9/12
18/8 and 9/4

NOT proportional:

3/8 and 6/141
7/5 and 27/50

Serjik [45]3 years ago

6 0

Answer:

previous answer is right -

Step-by-step explanation:

2/3 and 9/12 is not proportional

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Y = -2/3x + 2<br>y = 3/2x + 9<br>These lines are...

stellarik [79]

Answer:

Perpendicular

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes

-2/3 negated is

2/3

The reciprocal (flip the numerator and denominator) of 2/3 is

3/2

So, the lines are perpendicular

Hope this helps! :)

4 0

3 years ago

Read 2 more answers

The diameter of circle X is 15 centimeters. The diameter of circle Y is 20 centimeters. Which measurement is closest to the diff

valina [46]

The difference between the circumference of circle X and circumference of circle Y is 5π cm.

<h3>What is circumference of a circle?</h3>

This is the distance round a circle.

The circumference of circle X is calculated as follows;

$C_X = \pi d\\\\
C_X = 15\pi \ cm$

The circumference of circle Y is calculated as follows;

$C_Y = \pi d\\\\
C_Y = 20 \pi \ cm$

The difference between the circumference of circle X and circumference of circle Y is calculated as follows;

$C_Y - C_X = 20\pi - 15 \pi = 5\pi \ cm \\\\
$

Thus, the difference between the circumference of circle X and circumference of circle Y is 5π cm.

Learn more about circumference of a circle here: brainly.com/question/9782777

8 0

1 year ago

Read 2 more answers

Simplified product ?

mel-nik [20]

Answer:

Last choice is correct.

Step-by-step explanation:

$\left(\sqrt{10x^4}-x\sqrt{5x^2}\right)\left(2\sqrt{15x^4}+\sqrt{3x^3}\right)$

$\left(x^2\sqrt{10}-x\cdot x\sqrt{5}\right)\left(2\cdot x^2\sqrt{15}+x\sqrt{3x}\right)$

$\left(x^2\sqrt{10}-x^2\sqrt{5}\right)\left(2x^2\sqrt{15}+x\sqrt{3x}\right)$

$x^2\sqrt{10}\left(2x^2\sqrt{15}+x\sqrt{3x}\right)-x^2\sqrt{5}\left(2x^2\sqrt{15}+x\sqrt{3x}\right)$

$2x^4\sqrt{150}+x^3\sqrt{30x}-2\sqrt{75}x^4-x^3\sqrt{15x}$

$2x^4\cdot5\sqrt{6}+x^3\sqrt{30x}-2\cdot5\sqrt{3}x^4-x^3\sqrt{15x}$

$10x^4\sqrt{6}+x^3\sqrt{30x}-10\sqrt{3}x^4-x^3\sqrt{15x}$

$10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}$

Hence final answer is $10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}$

5 0

2 years ago

Please help me ASAP I’ll mark Brainly

kondor19780726 [428]

Answer:

-2.3 repeating

Step-by-step explanation:

6 0

2 years ago

What is the gradient of the line that passes through the points (0,0) and (7,28)?

OLEGan [10]

Answer:

Step-by-step explanation:

and

are two typologies on non-empty set

, then ………………. is topological space.

5 0

2 years ago