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3 years ago

How much time has passed from the first clock to the second clock? The time passed us less than 12 hours.

Mathematics

2 answers:

Elodia [21]3 years ago

7 0

5 hours and 4 minutes

<h3>Reason</h3>

The first clock is 4:25

The second clock is 9:29

9:29-

4:25=

5:04

Jet001 [13]3 years ago

3 0

Answer:4:44

Step-by-step explanation:First clock is 4:45 And second clock is 9:29 now 4:45 + X = 9:29

So take 9:29 subtract 4.45 and you get your answer 4:44

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What are the converse, inverse, and contrapositive of the following true conditional? What are the truth values of each?

ser-zykov [4K]

In logic, the converse of a conditional statement is the result of reversing its two parts. For example, the statement P → Q, has the converse of Q → P.

For the given statement, 'If a figure is a rectangle, then it is a parallelogram.' the converse is 'if a figure is a parallelogram, then it is rectangle.'
As can be seen, the converse statement is not true, hence the truth value of the converse statement is false.

The inverse of a conditional statement is the result of negating both the hypothesis and conclusion of the conditional statement. For example, the inverse of P → Q is ~P → ~Q.
For the given statement, 'If a figure is a rectangle, then it is a parallelogram.' the inverse is 'if a figure is not a rectangle, then it is not a parallelogram.'
As can be seen, the inverse statement is not true, hence the truth value of the inverse statement is false.

The contrapositive of a conditional statement is switching the hypothesis and conclusion of the conditional statement and negating both. For example, the contrapositive of P → Q is ~Q → ~P. 
For the given statement, 'If a figure is a rectangle, then it is a parallelogram.' the contrapositive is 'if a figure is not a parallelogram, then it is not a rectangle.'
As can be seen, the contrapositive statement is true, hence the truth value of the contrapositive statement is true.

4 0

3 years ago

Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve the following. The half-life of a certai

Akimi4 [234]

Answer:

It will take 7 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of the substance after t years,

$A=A_0 e^{kt}$

Where,

$A_0$ = Initial amount of the substance,

If the half life of the substance is 19 years,

Then if t = 19, amount of the substance = $\frac{A_0}{2}$ ,

i.e.

$\frac{A_0}{2}=A_0 e^{19k}$

$\frac{1}{2} = e^{19k}$

$0.5 = e^{19k}$

Taking ln both sides,

$\ln(0.5) = \ln(e^{19k})$

$\ln(0.5) = 19k$

$\implies k = \frac{\ln(0.5)}{19}\approx -0.03648$

Now, if the substance to decay to 78% of its original amount,

Then $A=78\% \text{ of }A_0 =\frac{78A_0}{100}=0.78 A_0$

$0.78 A_0=A_0 e^{-0.03648t}$

$0.78 = e^{-0.03648t}$

Again taking ln both sides,

$\ln(0.78) = -0.03648t$

$-0.24846=-0.03648t$

$\implies t = \frac{0.24846}{0.03648}=6.81085\approx 7$

Hence, approximately the substance would be 78% of its initial value after 7 years.

5 0

3 years ago

Carlos is going to an amusement park for his 11th birthday with his 2 yr old brother and parents. His parents brought $100 to sp

amm1812

They have $49.00 left for desert because a ticket is $15 for each person 7 and older. So 15 × 3 people = $45.00. $1.50 per slice and they got 4 slices so 1.50 × 4 = $6.00. $45.00 + $6.00 = $51.00. $100 - $51 = $49.00

8 0

3 years ago

All ______ numbers, which include rational and irrational numbers, can be plotted on a number line.

777dan777 [17]

Answer:

The letter D is correct (real)

8 0

3 years ago

Read 2 more answers

Why who is bored lol top ten tallest buildings

solong [7]

Answer:

Burj Khalifa: in Dubai - United Arab Emirates the height is 2,722′ to the tip
Shanghai Tower: in Shanghai, China the height is 2,073´
Makkah Clock Tower: in Saudi Arabia the height is 1,972´
Entisar Tower: in Dubai - United Arab Emirates the height is 1,870′
Ping An Finance Centre: in Shenzhen, China the height is 1,966′ to the tip
Lotte Tower: in Seoul, South Korea the height is 1,821′
One World Trade Center: in New York City the height is 1,792′ to the tip
Tianjin Chow Tai Fook Binhai Center: in Tianjin, China the height is 1,739′
CTF Finance Centre: in Guangzhou, China the height is 1,739′
China Zun: in Beijing, China the height is 1,731′

Hope it helps answer the question:)

7 0

3 years ago