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2 years ago

Explain how you can find 4x754 different two way

Mathematics

2 answers:

vitfil [10]2 years ago

6 0

754+754+754+754=a

754 754
+754 +754
____ ____
a + a =

svetlana [45]2 years ago

4 0

4 of 754 and 754 of 4. Also, try different strategies of showing work.

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Simplify sqr 18<br> A 2 sqr 3<br> B 2 sqr 9<br> C 3 sqr 2<br> D 9 sqr 2

Tanzania [10]

$\bf \sqrt{18}~~ \begin{cases} 18=&2\cdot 3\cdot 3\\ &2\cdot 3^2 \end{cases}\implies \sqrt{2\cdot 3^2}\implies 3\sqrt{2}$

4 0

2 years ago

Read 2 more answers

An inspector samples four PC’s from a steady stream of computers that is known to be 12% nonconforming. What is the probability

yarga [219]

Answer: 0.067

Step-by-step explanation:

Binomial distribution formula :-

$P(X)=^nC_xp^x(1-p)^{n-x}$ , here P(x) is the probability of getting success in x trials , n is total number of trials and p is the probability of getting success in each trial.

Given : n = 4 , p = 12 % = 0.12 and x =2

Then , $P(2)=^4C_2(0.12)^2(1-0.12)^{4-2}$

$\Rightarrow\ P(2)=\dfrac{4!}{2!2!}(0.12)^2(0.88)^2=0.06690816\approx0.067$

∴ The probability of selecting two nonconforming units in the sample = 0.067

3 0

3 years ago

The illuminance of a surface varies inversely with the square of its distance from the light source. If the illuminance of a sur

lesya692 [45]

Answer: b) 6

Step-by-step explanation:

Given : The illuminance of a surface varies inversely with the square of its distance from the light source.

i.e. for d distance and l luminance , we have

$d^2\times l=k$ , where k is constant. (1)

If the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters.

From (1), we have

$\Rightarrow (6)^2\times 120=k\\\\\Rightarrow\ k=4320$ (2)

For the distance (d) corresponds to the illuminance to 30 lumens per square meter , we have

$d^2\times 30=k$

Put value of k , we get

$d^2\times 30=4320\\\\\Rightarrow\ d^2=\dfrac{4320}{30}=144\\\\\Rightarrow\ d^2=144\\\\\Rightarrow\ d= 12$

Then , the number of meters should the distance of the surface from the source be increased= 12 meters- 6 meters = 6 meters.

3 0

2 years ago

PLEASE ANSWER! Which expression is equal to the length of the hypotenuse of a right triangle, formed inside the unit circle, wit

IrinaVladis [17]

Answer:

Step-by-step explanation:

b: sin^2 0 + tan^2 0 this is just a gut feelings its been awhile since i done this kind of think i hope i could help

8 0

2 years ago

What’s that simplified

bearhunter [10]

Answer:

$2x^2\sqrt{5}$

Step-by-step explanation:

$\sqrt{20}x^2=x^2\sqrt{20}=x^2\sqrt{2*2*5}=x^2*2\sqrt{5}=2x^2\sqrt{5}$

7 0

2 years ago