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3 years ago

What is 2 + 3 because it is a little hard

Mathematics

1 answer:

Hatshy [7]3 years ago

5 0

Answer:

LOLOLOL its 5 :)

Step-by-step explanation:

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If az = 8 and an = -3an-1 then find the value of a4.

devlian [24]

The question doesn't make sense.

az = 8, the z should be a #

an = -3an-1, is this supposed to be

$a_{n} =-3(a_{n-1} )$ ?

What's the z?

6 0

3 years ago

tap A fills a tank in 6 hours tap B fills it in 8 hours and tap C empties it in 10 hours. starting with an empty tank and all th

Alex787 [66]

Answer:

It will take 5 hours and 5 minutes to fill the tank

Step-by-step explanation:

Here, we want to get the time taken to fill the tap

Let us have the rate per hour

A fills in 6 hours; so the fraction filled in an hour is 1/6

B fills in 8 hours, so the fraction filled in an hour is 1/8

C empties in 10 hours, so the fraction removed per hour is 1/10

So factoring the supply and removal, where removal is on a negative basis

we have it that in an hour, the fraction retained is;

1/6 + 1/8 - 1/10

= (20 + 15 - 12)/120

= 23/120

So this is the fraction retained per hour

The number of hours it will take to have a whole is simply the reciprocal of this fraction

That would simply be 120/23 = 5 5/23

5 hours and 5 minutes

6 0

3 years ago

What length is the shortest path from A to G in the graph below?

umka2103 [35]

Answer:

graph a

Step-by-step explanation:

3 0

3 years ago

What is the solution to the equation below? Round your answer to two decimal places. 4•e^x=17

bixtya [17]

Answer:

$\large\boxed{x\approx1.45}$

Step-by-step explanation:

$4e^x=17\qquad\text{divide both sides by 4}\\\\e^x=\dfrac{17}{4}\qquad \ln\ \text{of both sides}\\\\\ln e^x=\ln\dfrac{17}{4}\qquad\text{use}\ \log_aa^n=n\\\\x=\ln\dfrac{17}{4}\\\\x\approx1.45$

7 0

3 years ago

Calculate the highest common fac for it to the following 4 45, 6 o and is

kow [346]

Answer:

The greatest common factor is 1

Step-by-step explanation:

The factors of 4 are: 1, 2, 4

The factors of 6 are: 1, 2, 3, 6

The factors of 45 are: 1, 3, 5, 9, 15, 45

Then the greatest common factor is 1.

4 0

3 years ago