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3 years ago

Which statement best describes La Trishas work

Mathematics

1 answer:

ELEN [110]3 years ago

8 0

Answer:

Option A that is best describes the given scenario is option A that is “LaTricia is not correct. The word product does mean to multiply, but 12 should be the product and 3 should be one of the factors.”

Step-by-step explanation:

Given that LaTricia wrote a sentence as an equation. Given sentence is “Twelve is the product of three and a number”

Expression written by LaTricia =

Lets first concentrate on sentence and we will create our expression based on sentence and check it against the expression created by LaTricia. Let the number represented by variable w.

So product of 3 and the number will be represented by

And as Twelve is the product of three and a number

That is three is one of the factor and result product is 12. Hence option A that is best describes the given scenario is option A that is “LaTricia is not correct. The word product does mean to multiply, but 12 should be the product and 3 should be one of the factors.”

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Suppose that the probability that any particle emitted by a radioactive material will penetrate a certain shield is 0.01. If 10

AnnyKZ [126]

Answer:

a)P=0.42

b) $n\geq 297$

Step-by-step explanation:

We have a binomial distribution, since the result of each experiment admits only two categories (success and failure) and the value of both possibilities is constant in all experiments. The probability of getting k successes in n trials is given by:

$P=\begin{pmatrix}n\\ k\end{pmatrix} p^k(1-p)^{n-k}=\frac{n!}{k!(n!-k!)}p^k(1-p)^{n-k}$

a) we have k=2, n=10 and p=0.01:

$P=\frac{10!}{2!(10!-2!)}0.01^2(1-0.01)^{10-2}\\P=\frac{10!}{2!*8!}0.01^2(0.99)^{8}\\P=45*0.01^2(0.99)^8=0.42$

b) We have, $1-(1-p)^n=P$ , Here P is the probability that at least one particle will penetrate the shield, this probabity has to be equal or greater than 0.95. Therefore, this will be equal to subtract from the total probability, the probability that the particles do not penetrate raised to the total number of particles.

$1-0.99^n\geq 0.95\\0.99^n\leq 1-0.95\\0.99^n\leq 0.05\\n\geq 297$

4 0

3 years ago

4(-x+4) =12 solve for x

VashaNatasha [74]

Answer: x=1

Step-by-step explanation:

4 (-x+4）=12

（-4x+16）=12

-4x+16-16 =12-16

-4x/-4 =-4/-4

x=1

I don't know if this is right, please let me know if it is wrong ο(=•ω＜=)ρ⌒☆

4 0

3 years ago

M + 5 greater than or equal to -1

sladkih [1.3K]

Answer:

m>=-6

Step-by-step explanation:

m+5>=-1

m>=-1-5

m>=-6

3 0

3 years ago

Please help me with this algebra PLEEASSEee!!!

amid [387]

11. 5x^2-30=0
+30 to both sides
5x^2=30
÷5 both sides
x^2=6
square root both sides
x= +square root 6 ,- square root 6

12. 4x^2+10=26
-10 both sides
4x^2=16
÷4 both sides
x^2=4
square root both sides
x=+2,-2

13. a=72yrd^2
l=2w
w=?
a=l×w
72=2w×w
72=2w^2
÷2 both sides
36=w^2
square root both sides
w=+6,-6
a measurement can't be - so w=6
Plug into l=2w
l=2×6

l=12
w=6

5 0

3 years ago

Claire has 5 more pencils then her friend Stan. Claire has 18 pencils. how many does stan have ?

Tcecarenko [31]

Answer:

Stan has 13 pencils.

Step-by-step explanation:

s+5=18

-5 -5

s=13

Hope this helps! ;)

<em>(plz mark me as brainliest?)</em>

8 0

3 years ago