All categories

3 years ago

Write an equation in slope-intercept form for the following line: (15,-5) and (1,-7)

Mathematics

2 answers:

ella [17]3 years ago

4 0

(-14,-2)
You have to subtract the x and then the y and you get your new answer

pshichka [43]3 years ago

4 0

This is ur answer y= 1/7x - 50/7

You might be interested in

Are the triangles similar? If so, write the similarity statement and state which theorem or postulate is used to prove the two t

Zigmanuir [339]

The answer would be D) no, these triangles are not similar. I'm pretty sure they would be similar if one of the answer choices said ΔABC ~ ΔCED

3 0

3 years ago

Read 2 more answers

Solve - 4x2 - 4x - 9 = 0, stating your solutions in the form a = bi. Someone please answer!!

PIT_PIT [208]

Answer:

$x=-0.5 \pm -i\sqrt{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Algebra II

Imaginary Roots: √-1 = i
Standard Form: a + bi

Step-by-step explanation:

Step 1: Define

-4x² - 4x - 9 = 0

a = -4

b = -4

c = -9

Step 2: Find roots

Substitute: $x=\frac{4\pm\sqrt{(-4)^2-4(-4)(-9)} }{2(-4)}$
Exponents: $x=\frac{4\pm\sqrt{16-4(-4)(-9)} }{2(-4)}$
Multiply: $x=\frac{4\pm\sqrt{16-144} }{-8}$
Subtract: $x=\frac{4\pm\sqrt{-128} }{-8}$
Factor: $x=\frac{4\pm \sqrt{-1} \cdot \sqrt{128} }{-8}$
Simplify: $x=\frac{4\pm 8i\sqrt{2} }{-8}$
Factor: $x=\frac{4(1\pm 2i\sqrt{2}) }{-8}$
Divide: $x=\frac{1\pm 2i\sqrt{2}}{-2}$
Expand: $x=\frac{-1}{2} \pm \frac{-2i\sqrt{2} }{2}$
Simplify: $x=\frac{-1}{2} \pm -i\sqrt{2}$
Evaluate: $x=-0.5 \pm -i\sqrt{2}$

6 0

3 years ago

He earns $100 each week, plus $25 for each lawn he mows. Write a function,

Ulleksa [173]

Answer:

100W + 25L

Step-by-step explanation:

100 (week) + 25 (lawn) = money earned

100W + 25L

6 0

3 years ago

Read 2 more answers

In ΔCDE, the measure of ∠E=90°, the measure of ∠D=23°, and EC = 1.3 feet. Find the length of DE to the nearest tenth of a foot.

BabaBlast [244]

Answer: length of DE is about 3.3 ft

Step-by-step explanation: A calculator is necessary!

DE is the unknown hypotenuse of the triangle

get the sine of 23° = 0.3907311285

Use the equation for sine

sin = o/h .

To find h, Substitute values for sin and o. O is EC, Opposite the 23° angle D

0.3907311285 = 1.3/h multiply both sides by h

h(0.3907311285) = 1.3 divide both sides by 0.3907311285

h = 1.3/0.3907311285

3.327096065 = h, the length of the hypotenuse, DE.

7 0

3 years ago

It costs $12 to get into the San Diego County Fair and $1.50 per ride.

yan [13]

Answer:

Step-by-step explanation:

(24-12)/1.50=8

8 0

3 years ago