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earnstyle [38]
3 years ago
13

What is the slope of the line that passes through the points (1, -7), and (3, 1)? -4 - 4

Mathematics
2 answers:
Mazyrski [523]3 years ago
8 0
The way to find a slope is to use the formula:
mx+b

m= y2 - y1/ x2 - x1
m= 1 - - 7/ 3 - 1
m= 1+7/ 2
m = 8/2

the slope for this would be 8/2
lozanna [386]3 years ago
4 0
I’m not sure what the negative fours are at the end of your problem are for, but the slope of the line passing through those points is 4.

The line itself is y = 4x - 11
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What is the simplified form of the expression <br> 2 radical 18 - 5 radical 32
Alex Ar [27]

Answer:

-14√2

Step-by-step explanation:

Note that 18 = 2*9, and that 9 is a perfect square.  Therefore,

2*√18 = 2*3*√2, or 6√2.

Next, note that 32 = 2*16, and that 16 is a perfect square.  Therefore,

-5*√32 = -5*√2*√16, or -5*√2*4, or -20√2.

Combining these two results, we get:

6*√2 - 20√2, or -14√2

7 0
3 years ago
Use the properties of 30-60-90 and 45-45-90 triangles to solve for x in each of the problems below. Then decode the secret messa
Tcecarenko [31]

The trigonometric function gives the ratio of different sides of a right-angle triangle. The given problems can be solved as given below.

<h3>What are Trigonometric functions?</h3>

The trigonometric function gives the ratio of different sides of a right-angle triangle.

\rm Sin \theta=\dfrac{Perpendicular}{Hypotenuse}\\\\\\Cos \theta=\dfrac{Base}{Hypotenuse}\\\\\\Tan \theta=\dfrac{Perpendicular}{Base}\\\\\\Cosec \theta=\dfrac{Hypotenuse}{Perpendicular}\\\\\\Sec \theta=\dfrac{Hypotenuse}{Base}\\\\\\Cot \theta=\dfrac{Base}{Perpendicular}\\\\\\

where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite to the 90° angle.

1st.) x = 5 /Sin(30°)

x = 10

!) sin(45°) = 4/x

x = 4/sin(45°)

x = 4√2

I) Cos(45°) = √3 / x

x = √3 / Cos(45°)

x = √6

E) Tan(60°) = 3√3 / x

x = 3√3 / 3

W) For isosceles right-triangle, the angle made by the legs and the hypotenuse is always 45°.

x = 45°

N) x² + x² = (7√2)²

x = 7

V) Tan(60°) = 7 / x

x = 7√3/3

K) x² + x² = (9)²

x = 9/√2

Y) Sin(60°) = 7√3/x

x = 14

M) Sin(30°) = x/11

x = 11/2

T) Sin(45°) = x/√10

x = √5

A) x + 2x + 90° = 180°

x = 30°

O) Sin(45°) = √2 / x

x = 2

R) Tan(30°) = x / 4

x = 4/√3 = 4√3 / 3

S) Sin(60°) = x / (10/3)

x = 5√3 / 3

Learn more about Trigonometric functions:

brainly.com/question/6904750

#SPJ1

8 0
2 years ago
What is the domain of f(x) = 3^x
babunello [35]

Domain of 3ˣ = ( -∞, ∞ )

<em>Note : Domain of an exponential function is always ( -∞, ∞ )</em>

3 0
3 years ago
Please help me with this​
Alex

Answer:

i wanna say d but i might be wrong

Step-by-step explanation:

4 0
3 years ago
R^2-3r-54=0
laila [671]

Answer:

r = 9, -6

Step-by-step explanation:

4 0
3 years ago
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