2 years ago

How would you solve this equation when -14-7=-7?

Mathematics

1 answer:

uysha [10]2 years ago

8 0

Answer:

r = -8/5

Step-by-step explanation:

-7 log4 (-10r) = -14

Divide each side by -7

-7/-7 log4 (-10r) = -14/-7

log4 (-10r) = 2

Raise each side to the base of 4

4^ log4 (-10r) = 4^2

-10r = 16

Divide each side by -10

-10r/-10 = 16/-10

r = -116/10

r = -8/5

You might be interested in

Find the unit rate. 360 miles in 8 hours

NikAS [45]

Answer:

45 miles per hour.

Step-by-step explanation:

360 / 8

= 45 miles per hour.

6 0

2 years ago

Read 2 more answers

The hours of daylight, y, in Utica in days x from January 1, 2013 can be modeled by the equation y = 2.89sin(0.0145x-1.40) + 10.

Pie

Answer:

9.3 hours

Step-by-step explanation:

Given

$y = 2.89\sin(0.0145x-1.40) + 10.99.$

Required

Hours of sunlight on Feb 21, 2013

First, calculate the number of days from Jan 1, 2013 to Feb 21, 2013

$days = 52$

So:

$x = 52$

So, we have:

$y = 2.89\sin(0.0145x-1.40) + 10.99.$

$y = 2.89\sin(0.0145*52-1.40) + 10.99.$

$y = 2.89\sin(0.754-1.40) + 10.99.$

$y = 2.89\sin(-0.646) + 10.99.$

$y = 2.89*-0.6020 + 10.99.$

$y = -1.740 + 10.99.$

$y = 9.25$

$y = 9.3$ --- approximated

8 0

2 years ago

Convert 7,200 in scientific notation

Nitella [24]

Answer:

7.2*10^3.

7,200 in scientific notation, is 7.2*10^3

8 0

2 years ago

State the first 3-digit multiple of 7

Elis [28]

Da answer is 7, 14, 21

5 0

2 years ago

Parabolas, hyperbolas, ellipses, and circles are all types of __________.

Harman [31]

Parabolas, hyperbolas, ellipses, and circles are all types of (A) roulette's.

4 0

2 years ago