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2 years ago

What is the slope of the line that goes through (-5,-5) and (5,-7)?

Mathematics

2 answers:

stira [4]2 years ago

6 0

Answer:c

Step-by-step explanation:

irinina [24]2 years ago

4 0

Answer:

C) 1/5

Step-by-step explanation:

Slope=(y2-y1) /(x2-x1)

(-5,5)...........x1=-5, y1 =5

(5,7).............x2=5, y2=7

Slope=(7-5)/(5-(-5))

Slope=2/(5+5)

Slope=2/10

Slope=1/5

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X=2π/3

Marina86 [1]

Answer:

$cos{\frac{2\pi}{3}}=-\frac{1}{2}$ .

Reference angle is $\frac{\pi}{3}$

Step-by-step explanation:

Given the value of x. we have to find the correct value of cosx.

$x=\frac{2\pi}{3}$

Now, we have to find the exact value of $cos{\frac{2\pi}{3}}$

$cos{\frac{2\pi}{3}}=cos(\frac{\pi}{2}+\frac{\pi}{6})$

$=-sin(\frac{\pi}{6})$

$=-\frac{1}{2}$

Now, we have to find the reference angle of $x=\frac{2\pi}{3}$ .

Since the angle $x=\frac{2\pi}{3}$ lies in second quadrant, the reference angle formula is

Reference angle= $\pi-given angle$ .

= $\pi-\frac{2\pi}{3}=\frac{\pi}{3}$

3 0

2 years ago

Which value is the solution to the open sentence? 2 + 3x= 5

3241004551 [841]

Answer:

x = 1

Step-by-step explanation:

2 + 3*x = 5

3*x = 5 - 2

3*x = 3

x = 3/3

x = 1

3 0

2 years ago

Read 2 more answers

Which of the following is a difference of cubes? x^6 + 27y^9 3x^9 - 64y^3 27x^{15} - 9y^3 125x^{21} - 64y^3

astraxan [27]

Answer:

D) 125x²¹- 64y³

Step-by-step explanation:

A) x⁶ + 27y⁹ = (x²)³ + (3y³)³ - sum of cubes
B) 3x⁹ - 64y³ - the first term is not a cube
C) 27x¹⁵ - 9y³ - the second term is not a cube
D) 125x²¹- 64y³ = (5x⁷)³ - (4y)³ - difference of cubes

Correct option is the last one

7 0

3 years ago

Read 2 more answers

Please help me with this thankyou

DerKrebs [107]

The answer would be 60

The first think you would need to do would simply 144. Which would be 12.

Then you are going to want to multiply-5 by 12.
Which would be 60.
With 12 as a positive number, being greater or to than 60 then will become a positive.

7 0

2 years ago

two mountain bikers leave from the same parking lot and head in opposite directions on two different trails. the first rider goe

sveta [45]

Applying the required rule or theorem, it can be concluded that the second biker is farther from the parking lot. The distance of the bikers to the parking lot are:

i. First biker = 17.0 km

ii. Second biker = 20.22 km

The path of travel of both bikers would form a triangle. Applying the Pythagoras theorem to the path of the first biker would give his distance from the starting point. While applying the cosine rule to the path of second rider would gives his distance to the starting point.

Thus,

a. To determine the distance of the first biker from the parking lot.

Let the required distance be represented by x. Applying the Pythagoras theorem, we have:

$hyp^{2}$ = $adj 1^{2}$ + $adj 2^{2}$