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2 years ago

please answer the question in the photo below ,will mark brainleat when gives me option to do it! Thanks :)

Mathematics

2 answers:

monitta2 years ago

8 0

Answer:

yes

Step-by-step explanation:

8+4=12>10.5

10.5+4>8

and 10.5+8>4

again

10.5-8=1.5<4

10.5-4=5.5<8

8-4=4<10.5

sum of two sides> third side.

and

difference of any two sides <third side.

Juliette [100K]2 years ago

6 0

Answer:

um yes it can it can if you look at a ruler in try it it would be the same

Step-by-step explanation:

please just say thank you in please rate this

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Converting measures 48ft= yd

Vera_Pavlovna [14]

Answer:

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Step-by-step explanation:

5 0

2 years ago

A radioactive substance decays at a continuous rate of 12% per year, and 90 mg of the substance is present in the year 2000. (a)

Alla [95]

Answer:

A(t) = 90e^0.12t ;

299 mg

Step-by-step explanation:

General Continous growth rate equation :

A = Pe^rt

A = amount present, t years after year of initial amount.

Here,

P = 90 mg, amount in year 2000

r = rate = 12% = 0.12

t = years after 2000

Therefore,

A is written as ;

A(t) = 90e^0.12t

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t = 2010 - 2000 = 10

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5 0

2 years ago

One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s

siniylev [52]

Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

For sample 1:

n₁ = 10

variance, s₁² = 20

For sample 2:

n₂ = 15

variance, s₂² = 30

Now,

The pooled variance is calculated using the formula,

$S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}$

on substituting the given respective values, we get

$S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}$

$S^{2}_{p}$ = 26.0869

Hence,

the pooled variance will be closer to 30 than to 20

Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

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gayaneshka [121]

Answer:

Step-by-step explanation:

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