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3 years ago

Can someone please explain to me how to solve this? I don't really understand how.

Mathematics

1 answer:

natali 33 [55]3 years ago

7 0

Step-by-step explanation:

If a point on a line is the midpoint, that means that the two segments created by the point are equal. In this case, XA = AY

We can set the two lengths equal to each-other.

$3x = 5x - 12\\3x + 12 = 5x -12 + 12\\3x+12 = 5x\\2x = 12\\x =6$

Now that we know x = 6, we can solve for the lengths of each segment.

XA = 3x = 3(6) = 18

AY = 5x - 12 = 5(6) - 12 = 30 -12 = 18

XY = 3x + 5x - 12 = 8x - 12 = 8(6) - 12 = 48 - 12 = 36

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aniked [119]

Answer:

Step-by-step explanation:

Find the surface area:

Bottom base: 57 × 27 = 1,539

Top base: 21 × 27 = 567

Rectangular face: 23 × 27 = 621

Trapezoidal face: (21 + 57) ÷ 2 × 15 = 585

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3 years ago

25-3x-2-4x+5 has how many coefficients and how many expressions

adoni [48]

Answer:

This expression has 2 coefficients, (-3 and -4), because any number with a variable is a coefficient. That means 25, -2, and 5 are all constants, because they don't have variables.

Variables are the x's in this case.

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3 years ago

What is the solution to log (9x)-log 3 = 3?

xeze [42]

Answer:

The solution x = $\frac{e^{3} }{3}$

Step-by-step explanation:

<u>Step 1</u>:-

Given $log(9 x) -log 3 =3$

we have to use formula $log a-log b=log\frac{a}{b}$

$log(9 x)- log 3 = log(\frac{9 x}{3} )$ = $3$

Again by using formula $log a =b$

$a = e^{b}$

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<u>step 2:</u>-

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$x = \frac{e^{3} }{3}$

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3 years ago

Convert 5280 vodas to pivos. Show three significant figures for your answer.

Finger [1]

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3 years ago

Air is a solution composed of 78% nitrogen and 21% oxygen. Identify the solute and the solvent. *

bagirrra123 [75]

Answer:

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Step-by-step explanation:

Most of the time the solute will be present in a smaller quantity and the solvent will appear in a larger quantity.

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3 years ago

Read 2 more answers

Can someone please explain to me how to solve this? I don't really understand how.​

Can someone please explain to me how to solve this? I don't really understand how.