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Kazeer [188]
3 years ago
12

Log, 2 + log 7(x – 5) = 2

Mathematics
1 answer:
kipiarov [429]3 years ago
3 0

Answer:

85/7

Step-by-step explanation:

log2 + log7(x-5) = 2

log(14(x-5)) = 2

14x - 70 = 10²

14x = 170

x = 170/14

x = 85/7 or 12 1/7

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4 0
3 years ago
Read 2 more answers
Question 9
True [87]

Answer:

17

Step-by-step explanation:

m<1 = (4x + 2)

m<3 = (5x - 15)

To find the value of x, we need to generate an equation.

<1 and <3 are vertical angles. Vertical angles are congruent. Therefore:

m<1 = m<3

(4x + 2) = (5x - 15)

Use this equation to solve for x

4x + 2 = 5x - 15

Subtract 5x from both sides

4x + 2 - 5x = 5x - 15 - 5x

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5 0
3 years ago
Write the equation of a line that is perpendicular to the line y= - 1/3x +8 and passes through the point (0,-4)
pantera1 [17]
The answer would be y = 3x-4
8 0
3 years ago
Write the equation for the following relation. R = {(x, y): (4, 5), (8, 7), (12, 9), (16, 11), . . .} and show work
timama [110]

Let

A(4,5) B(8,7) C(12,9) D(16,11)

1) Find the slope AB

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

m=(7-5)/(8-4)=0.5

2) Find the slope BC

m=(9-7)/(12-8)=0.5

3) Find the slope CD

m=(11-9)/(16-12)=0.5

The points represent a linear function

so

<u>Find the equation of the line with m=0.5 and the point A(4,5)</u>

we know that

y-y1=m*(x-x1)

y-5=0.5*(x-4)

y=0.5*x-2+5

y=0.5*x+3

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The equation is equal to y=0.5*x+3

8 0
3 years ago
5000 at 12% compound quarterly compared interest earned after 5 year's
hichkok12 [17]

Answer:

A = P(1+r÷100)^n

where A is amount after some days

r is the rate

n is the number of years

p is the principle (the amount of money before the interest)

A = 5000 ( 1 + 12÷100)^5

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A = 8812

8 0
3 years ago
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