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Vitek1552 [10]
3 years ago
15

NEED HELP ASAP Which of the following equations describe the line shown below?

Mathematics
1 answer:
bagirrra123 [75]3 years ago
6 0
(-1,6)(2,-6)
slope = (-6 - 6) / (2 - (-1) = -12/3 = -4

y = mx + b
slope(m) = -4
(-1,6)...x = -1 and y = 6
sub and find b, the y int
6 = -4(-1) + b
6 = 4 + b
6 - 4 = b
2 = b

so the equation is : y = -4x + 2 <=== here is one

y - y1 = m(x - x1)
slope(m) = -4
(-1,6)...x1 = -1 and y1 = 6
sub
y - 6 = -4(x - (-1) =
y - 6 = -4(x + 1) <=== here is one

y - y1 = m(x - x1)
slope(m) = -4
(2,- 6)...x1 = 2 and y1 = - 6
sub
y - (-6) = -4(x - 2) =
y + 6 = -4(x - 2) .... here is one, but it is not an answer choice
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the length of an arc of a circle is 269⁢πcentimeters and the measure of the corresponding central angle is 65∘. what is the leng
scZoUnD [109]

The length of the circle's radius = 744.92 cm

Given the length of arc of a circle, arc length = 269⁢π cm

Central angle of a circle is the angle made between the radius through the arc length at the center of the circle.

The corresponding central angle = 65°

To find the corresponding central angle in radians = 65° x π/180 = 13π/36 radians

We have, arc length of a circle = radius x central angle

Therefore, radius of the circle = arc length / central angle

                                                  =  269⁢π /(13π/36)

                                                  = 744.92 cm

Learn more about arc length of a circle at brainly.com/question/28108430

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6 0
1 year ago
Solve the system of equations by substitution method
mina [271]

( - 0.625, - 1.75 )

so since the first equation is already simplified , just replace it in the second equation

6 0
2 years ago
HELP PLEASE!! THANK YOU!
dmitriy555 [2]

Answer: choice B, 40.5 degrees

The triangle is isosceles based on the fact that AC = BC (the tick marks are the same). The angles opposite the congruent sides are also congruent

angle A = angle B = x for some unknown number x

The three angles A,B,C add to 180, so,

A+B+C = 180

x+x+99 = 180

2x+99 = 180

2x = 180-99

2x = 81

x = 81/2

x = 40.5

So angle A and angle B are both 40.5 degrees

Check:

A+B+C = 180

40.5+40.5+99 = 180

180 = 180 answer is confirmed

==============================

Edit

The sides with the two tick marks are the same length, so 7x-4 is the same as length as 31

7x-4 = 31

7x = 31+4

7x = 35

x = 35/7

x = 5

Answer is choice B) 5

3 0
3 years ago
Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems please se
Nikitich [7]

Correct option is  B)

Cross-multiplication is helpful in Solving proportions.

<h3>What is Solving Proportions?</h3>

Solving proportions is simply a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying and solving the resulting equation.

<h3>What are the 2 methods for solving proportions?</h3>

Method I: Draw a double-sided number line, label the parts, set up a proportion and solve.

Method II: Using any method, calculate unit rate and then calculate how many pounds you can get for $30. Method III: Graph a point to represent the original ratio.

<h3>What is the rule for solving proportions?</h3>

The product of the means is equal to the product of the extremes.

Learn more about  solving proportions here: brainly.com/question/14752332

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I understand the the question you are looking for is :

Cross-multiplication is helpful in:

a. quadratic equations

b. solving proportions

c. linear equations

d. word problems

please select the best answer from the choices provided a b c d

5 0
1 year ago
Factor f(x)=x^(3)-2x^(2)-x+2
DanielleElmas [232]
X=-1
x=1
x=2

if wrong sorry
6 0
2 years ago
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