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AlexFokin [52]
3 years ago
8

Find the distance from the point (4,2) to the line y= −2.

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0

Answer:

The distance is 4.

Step-by-step explanation:

The shortest distance from the point (4,2) to the line y=-2, in this case, would be a straight line perpendicular to y=-2.

For each and every value of "x" on the line, y = -2. The shortest distance occurs at y(4) = - 2.

At this point the distance is:

d^{2} =(4 - 4)^{2} + (2-(-2))^{2} \\d^{2} =4 ^{2}\\\\d = 4

The distance is 4.

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The diagonal of one side of a rhombus are of equal length. Find the measure of angles of the rhombus.​
MatroZZZ [7]
<h3><u>Explanation</u><u>:</u></h3>

Consider ABCD is a rhombus

We know that

All sides are equal in rhombus

=> AB=BC=CD=DA

and AC and BD are digonals

Given that

Diagonal and the side of the rhombus are equal.

=> AB = BC = CD = DA = AC

Diagonal AC divides the rhombus into two triangles .

They are ∆ BAC and ∆ DAC

In triangle BAC

BA=BC=AC,(Given)

=> < BAC=<ABC= < ACB =60°………(1)

Similarly in ∆DAC ,

DA=DC=AC

=><DAC=<ACD=<ADC=60°……….(2)

From (1) and (2)

<A=<BAC+< DAC=60°+60°=120°

and

< B= < ABC = 60°.

and

<C=<ACB+<ACD=60°+60°=120°

and

< D =<ADC=60°

Therefore, <A = 120° , <B = 60° ,<C = 120° ,<D = 60°

<u>Answer:-</u>

The measures of the all angles in the rhombus are 120° , 60° ,120° and 60°

<u>Used formulae:-</u>

all sides in a rhombus are equal

3 0
2 years ago
URGENT, ALL HELP ACCEPTED PLEASE!<br><br> Solve y= 3x-1 and (1/2)y+x=1 for their COMMON solution.
faust18 [17]
Simplify the second equation.

1/2y = -x + 1

Multiply both sides by 2

y = -2x + 2

Since both equations equal y you can set them equal to each other.

-2x + 2 = 3x - 1

Solve for X

-5x = -3

x = 3/5

Plug this into one of the equations.

3(3/5) - 1 = y

1.8 - 1 = y

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(0.6, 0.8)
6 0
3 years ago
Which sets of side lengths could form a triangle
olga2289 [7]
A 
No 9 is bigger than the other 2 added together.
B
3+ 6 = 9. A triangle cannot be formed.
C
4+5 = 9. A triangle cannot be formed. The shorter two will just make the length of the longest side. No triangle made.
D
Yes 4+6 > 9 A triangle will be formed.
E
Yes 5 + 5 = 10 which is greater than 9. A triangle will be formed.

 
5 0
3 years ago
How much would 500$ invested at 9% interest compounded annually be worth after 4 years?
erma4kov [3.2K]

Answer:

$705.79

Step-by-step explanation:

(see attached for reference)

the formula for compound interest is

A = P [1 + (r/n) ]^(nt)

Where:

P = Principal Amount = $500

r = annual interest rate = 9% = 0.09

t = 4 years

n = 1 (compounded annually)

A = 500 [1 + (0.09/1) ]^(1 x 4)

A = 500 [1 + 0.09 ]^(4)

A = 500 [1.09 ]^(4)

A = $705.79

7 0
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JulsSmile [24]

Answer:

solve for x first and then y

Step-by-step explanation:

once you know what x is than y , ur answer will equall out

6 0
3 years ago
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