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3 years ago

How do I work it out step by step y^2+5y+6

Mathematics

2 answers:

vova2212 [387]3 years ago

5 0

Hello There!

Here is how to do step by step!

The middle number is 5 and the last number is 6.

Factoring means we want something like

(y+_)(y+_)

Which numbers go in the blanks we ask?

We need two numbers that...

Add together to get 5
Multiply together to get 6

Can you think of the two numbers?

Fill in the blanks in

(y+_)(y+_)

with 2 and 3 to get...

(y+2)(y+3)

Get your answer: (y+2)(y+3)

Hope This Helps!

enyata [817]3 years ago

3 0

Answer:

7y+6

Step-by-step explanation

You have to do 2 times y first. That is 2y. Then you have to add 2y plus 5y, which is 7y. 7y plus 6 equals 7y+6.

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What is ( 2 ^8 x 5^-5 x 19^0) ^-2 x ( 5^-2 / 2^3 ) ^4 x 2^28

Lera25 [3.4K]

(2^8x5^-5x19^0)^-2 x (5^-2/2^3)^4 x 2^28

(256x0.00032x1)^-2 x (0.04/8)^4 x 2^28

0.08192^-2 x 0.005^4 x 268,435,456

149.0116119384766 x 0.000000000625 x 268,435,456

0.000000093132257 x 268,435,456

= 25

7 0

3 years ago

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Andreas93 [3]

Answer:

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Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

In ideal conditions, 200 colony-forming units (cfu) of E. coli can grow to 400 cfu in 20 minutes, to 800 cfu in 40 minutes, and

kvasek [131]

Answer:

(a)Yes, it is an exponential function.

(b) $P(t)=200\cdot 2^{t/20}$

Step-by-step explanation:

(a)A population grows exponentially if it increases by a common ratio(called the growth ratio). We can see from the given information that the population of E.coli doubles every 20 minutes, therefore it is an exponential growth with a growth ratio of 2.

(b)The population, P(t) at any time t of an initial population, $P_o$ with a growth ratio of r over a period k can be modeled using the function: