3 years ago

A set has 127 proper subsets. how many elements are in the set?

Mathematics

1 answer:

Mama L [17]3 years ago

8 0

The set has 7 elements

You might be interested in

Please include work! :)

UNO [17]

Answer:

m = 13.

Step-by-step explanation:

Recall that adding logarithmic equations, (ex: log a + log b) is the same as log (a·b). Therefore:

log 12 + log 5 = log (4m + 8)

log (12·5) = log (4m + 8)

log (60) = log (4m + 8) **Ignore 'Log' to solve for 'm'

60 = 4m + 8 **Subtract both sides by 8

52 = 4m **Divide both sides by 4

m = 13.

6 0

3 years ago

Maria bought seven boxes. a week later half of all her boxes were destroyed in fire

Kay [80]

Answer:ok

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Shannon test drives a car in Germany and drives 95 kilometers per hour. What is her speed in miles per hour?

kompoz [17]

Answer:59.03 miles

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A light bulb's brightness is reduced when placed behind a screen. The amount of visible light produced by the light bulb decreas

Rom4ik [11]

Answer:

Step-by-step explanation:

L=750(0.25)×

PLEASE MARK ME AS BRAINLIST

7 0

2 years ago

Logan is a land surveyor. He wants to determine d, the distance across a lake that cannot be directly measured. He draws this di

Mice21 [21]

Answer:

The first option (5.7km)

Step-by-step explanation:

Since we have a right angle triangle and we know two of its sides we can easily find out the thirds side (the value of d) by using the Pathagoras Theorem. In our case 7 and d are our legs and the hypotenuse is equal to 9, so...

(Based on the Pathagoras Theorem)

$c^{2} = a^{2} + b^{2}$

$9^{2} = 7^{2} + d^{2}$

$d^{2} = 9^{2} - 7^{2} \\d^{2} = 81 - 49\\d^{2} = 32\\d = \sqrt{32}\\$

d ≈ 5.7km

There for aproximate distance across the lake is equal to 5.7km

7 0

3 years ago

Read 2 more answers