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Talja [164]
3 years ago
12

Whats the explitic rule for the goemetric ? 4,8,16,32

Mathematics
1 answer:
Mila [183]3 years ago
5 0
 <span>2**n. (That's two to the nth power: 2 to the first, 2 to the second (or two squared), 2 to the third (or two cubed), 2 to the fourth, etc.) 

2**1 = 2 = 2 
2**2 = 2 * 2 = 4 
2**3 = 2 * 2 * 2 = 8 
2**4 = 2 * 2 * 2 * 2 = 16 </span>
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A car can travel 120 km in 2 hours.How long will it take the car to travel 300 km?
kakasveta [241]

We first find out time taken to travel for just 1 km

2hrs is equivalent to 120 minutes

120 km  = 120 min

1 km  =  x        (where x is the time taken to travel 1 km).

we simplify the equation by cross - multiplying the equation , so:

120  × x = 1 × 120  → 120x = 120  → x  = 120/120 → x = 1

So  the car covers 1km  in 1 minute

For 300 km the car will take 300 × 1 minute = 300 minutes

we convert minutes to hours by dividing by 60 → 300 / 60 = 5

Therefore the car will take 5 hours to cover 300 km.





8 0
3 years ago
Read 2 more answers
Consider randomly drawing two students without replacement from a class of 40 students in which 3 are left handed. Below is a tr
Lapatulllka [165]

Answer:

a. 3/40

b. 37/40

c. 2/39

d. 37/39

e. 3/39

h. 36/39

k. 1/260

m. 37/520

n. 37/520

w. 111/130

Step-by-step explanation:

First person:

a. 3/40

b. 37/40

_____

Second person:

left-handed branch of tree diagram: since the first person was left-handed, it means there is one less left-handed person, and one less person for the total

c. 2/39

d. 37/39

not left-handed branch of tree diagram: since the first person wasn't left-handed, there are still 3 left-handed people, and there is one less person for the total.

e. 3/39

h. 36/39

_____

for the final probabilities, just multiply along the tree branches:

k = a × c = 1/260

m = a × d = 37/520

n = b × e = 37/520

w = b × h = 111/130

6 0
3 years ago
According to the general equation for conditional probability, if P(An B)=4/7 and P(B)= 7/8, what is P(A|B)
uranmaximum [27]

The rule for conditional probability states that

P(A|B) = \dfrac{P(A\cap B)}{P(B)}

Since we're given both numerator and denominator, we only need to plug the values in:

P(A|B) = \dfrac{\frac{4}{7}}{\frac{7}{8}} = \dfrac{4}{7}\cdot \dfrac{8}{7} = \dfrac{32}{49}

5 0
4 years ago
Find (f*f)(0)<br> f(x)=3x-2
Lemur [1.5K]

Answer:

Option C. -8

Step-by-step explanation:

They ask us to find

(fof)(0)

To solve this problem we must introduce the function f(x) within the function f(x)

That is, we must do g(f(x)).

So, we have:

f(x) = 3x-2

Then:

f(f(x)) = 3(3x-2)-2

This is:

f(f(x)) = 9x-6 -2

f(f(x)) = 9x-8

Now we must do x = 0

f(f(0)) = 9(0) -8

(fof)(0)  = -8

The answer is: option c (fof)(0) = -8.

6 0
3 years ago
Read 2 more answers
Jaden and Isabella share a reward of $40 in a ratio of 2:3 how much does Jaden get
Triss [41]
Jaden gets 2/5 of 40 which is 16 and Isabella gets 3/5 of 40 which is 24.

Jaden gets $16
4 0
3 years ago
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