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irina [24]
2 years ago
9

Factorise. Help would be massively appreciated:)

Mathematics
1 answer:
kenny6666 [7]2 years ago
4 0

Answer:

A. 2x(x+3)

B. 2y(y-4)

C. 5p(p+2)

D. 7c(c-3)

E. 3x(2x+3)

I hope this helps

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Look for a pattern and complete the conjecture.
denis-greek [22]

Answer:

390

Step-by-step explanation:

The formula of sum of arithmetic sequence is \frac{n}{2} (a+Tn)

The number of this series are 2, 4, 6, 8, 10, 12, .  .  .  .  , 60.

The first term ( a ) = 2

The 30th even number is 60

The Tn is the term of the sequence

So the equation is

30/2 x ( 2 + T_{30})

T_{30} = 60

30/2 x ( 2 + 60 )

30/2 x (62)

1860/2

390

4 0
2 years ago
Read 2 more answers
If the probability of observing at least one car on a highway during any 20-minute time interval is 609/625, then what is the pr
andreyandreev [35.5K]

If the probability of observing at least one car on a highway during any 20-minute time interval is 609/625, then the probability of observing at least one car during any 5-minute time interval is 609/2500

Given The probability of observing at least one car on a highway during any 20 minute time interval is 609/625.

We have to find the probability of observing at least one car during any 5 minute time interval.

Probability is the likeliness of happening an event among all the events possible. It is calculated as number/ total number. Its value lies between 0 and 1.

Probability during 20 minutes interval=609/625

Probability during 1 minute interval=609/625*20

=609/12500

Probability during 5 minute interval=(609/12500)*5

=609/2500

Hence the probability of observing at least one car during any 5 minute time interval is 609/2500.

Learn more about probability at brainly.com/question/24756209

#SPJ4

8 0
2 years ago
Simplify (-8z+4) + (7z-7)
Karo-lina-s [1.5K]

Answer:

1. -1z-3

2. 4x+2

3. -y+11

4. 7a-22

Step-by-step explanation:

Not too sure about the last one

5 0
3 years ago
At the market, 8 apples cost $4, 4. How much do 9 apples cost?
ella [17]

Answer: i need more information 8 apples cost $4, 4???????


Step-by-step explanation:


7 0
3 years ago
Find the approximate surface-area-to-volume ratio of a bowling ball with a radius of 5 inches.
Nataly_w [17]
Surface area of a ball: 
S=4πr^2=4*π*5^2=100π

Volume of a circle:
V=4/3*π*r^3=4/3*π*125=(500/3)*π=165π

The approximate surface-area-to-volume ratio would be 1:1,5
6 0
3 years ago
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