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3 years ago

Help with the perpendicular lines please

Mathematics

1 answer:

Dimas [21]3 years ago

7 0

Answer:

Red and Green are parallel

Black and Blue are perpendicular

Step-by-step explanation:

Parallel lines need to have the same slope. Lines red and green both have a slope of 1/2.

The slopes of two lines that are perpendicular have to be opposite reciprocals, and must be multiplied together to get -1. Line black has a slope of -4, and line blue has a slope of 1/4. Both of them multiplied together equals -1.

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What is 3x+2y=2x+8 in point slope form

polet [3.4K]

Answer:
3x+2y=2x+8
3x-2x+2y=8
3x-2x=8-2y
x=8-2y

8 0

4 years ago

Descending order of 2.061,0.66,2.612,6.21,2.62<br>

bonufazy [111]

Answer:

Step-by-step explanation:

Descending order:

6.21 ; 2.62 ; 2.612 ; 2.061 ; 0.66

First see the whole number. write the number with biggest whole number.

6.21

2) Then three numbers have 2 . So, now compare the tenth place.

Two numbers have same place value 2.62 and 2.612.

Compare the hundredth place value in these two numbers.

So, 2.62

3) 2.612

4) 2.061

5) 0.66 is the smallest

8 0

3 years ago

Please find x! Thank you, only if you know!

ikadub [295]

Answer:

$\boxed {\boxed {\sf x \approx 23.49 \ cm }}$

Step-by-step explanation:

This is a right triangle (the small square in the corner signifies a 90 degree angle), so Pythagorean Theorem can be used.

$a^{2} + b^{2} =c^{2}$

where a and b are the legs of the triangle and c is the hypotenuse. In this triangle, 17 and x are the legs because they form the right angle. 29 in the hypotenuse because it is opposite the right angle.

$a= 17 \\b=x \\c= 29$

$17^{2} + x^{2} =29^{2}$

Solve the exponents.

17²=17*17=289
29²= 29*29=841

$289+x^{2} =841$

289 is being added to x and the inverse is subtraction. Subtract 289 from both sides to isolate the variable.

$289-289+ x^{2} =841-289\\x^{2} =552$

x is being squared and the inverse is a square root. Take the square root of both sides of the equation.

$\sqrt {x^{2} }=\sqrt {552}$

$x=23.4946802489$

Let's round to the nearest hundredth. The 4 in the thousandth place tells us to leave the 9.

$x \approx 23.49$

x is approximately 23.49 centimeters.

4 0

3 years ago

Solve for c: f= 9/5 * c+ 32

Irina18 [472]

F = (9/5)*c + 32

(9/5)c + 32 = f

(9/5)c = f - 32

9c/5 = (f - 32)

9c = 5*(f - 32)

c = 5*(f - 32) / 9 or c = (5/9)*(f - 32)

I hope this explains it. Cheers.

7 0

3 years ago

Crystal earns $4.00 per hour mowing lawns. how much does crystal earn if she works 2 hours and 30 minutes?

zlopas [31]

10 dollars i got this by finding 4 times 2 is 8 and half of 4 is 2 so it is exactly 10 dollars

7 0

4 years ago