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3 years ago

How do I solve this?

Mathematics

1 answer:

prisoha [69]3 years ago

7 0

$y = - 7 \\ x = 3$

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Log 15 (2x − 2) = log 15 (x+9)

notka56 [123]

Answer:

$x=11$

Step-by-step explanation:

Given the equation

$\log_{15}(2x-2)=\log_{15}(x+9)$

Note that

$2x-2>0\\ \\2x>2\\ \\x>1$

and

$x+9>0\\ \\x>-9$

Combined, $x>1$

Solve the equation:

$2x-2= x+9\\ \\2x-x=9+2\\ \\x=11$

Since $11>1,$ this is the solution to the equation.

5 0

3 years ago

Please help me ASAP with part A and B

Troyanec [42]

Answer:

Step-by-step explanation:

Area of rectangle is

A = 5(4x) = 20x

Part A

(D) 100 ≤ 20x ≤ 1,000

Part B

$\frac{100}{20}$ ≤ $\frac{20x}{20}$ ≤ $\frac{1000}{20}$

5 ≤ x ≤ 50

3 0

3 years ago

Please help me with this (i attached photos to cause less confusion) Thanks :) 25 Points!!!

navik [9.2K]

Answer:

See below

Step-by-step explanation:

The first two questions are slope = 0

a horizontal line has zero slope

slope = rise/run = 0 / run = 0

Greatest y value is + 4 from x = 3 to 4

the least y value is -3 fro x = -4 to -3

4 0

2 years ago

Read 2 more answers

Write the equation in slope-intercept form of a line with slope -2 that passes through the point (1.-7)

tiny-mole [99]

Answer:

y=-2x-5

Step-by-step explanation:

y-y1=m(x-x1)

y-(-7)=-2(x-1)

y+7=-2x+2

y=-2x+2-7

y=-2x-5

6 0

3 years ago

Help help help math math

solniwko [45]

Answer:

y=-1/2x-3

Step-by-step explanation:

Let's pick two points for slope.

$\frac{-1+3}{-4-0}$

$\frac{2}{-4}$

For the y-inctercept, the line intersect at the y-axis at (0,-3)

CHECK:

$y=-\frac{1}{2} (-4)-3$

$y=2-3$

$y=-1$

6 0

2 years ago