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3 years ago

I will thank your mom

Mathematics

1 answer:

Dahasolnce [82]3 years ago

3 0

Factor dem groups

find greatest common factor
24=2*2*2*3
40=2*2*2*5

common is 2*2*2=8

answer is 8 groups

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Out of 28 students in a class, 7 have blue eyes. What is the probability a student picked at

mars1129 [50]

Answer:

3/4

Step-by-step explanation:

7/28 have blue eyes

So 28-7=21

21/28 don't have blue eyes

21/28 simplified=3/4

7 0

3 years ago

Read 2 more answers

The number of typing errors made by a typist has a Poisson distribution with an average of five errors per page. If more than fi

xeze [42]

Answer:

0.61596

Step-by-step explanation:

Given that:

λ = 5 (5 errors per page)

Poisson distribution formula :

P(x = x) = (λ^x * e^-λ) / x!

Probability that page does not need to be retyped means that error on page is less than or equal to 5

P(x ≤ 5) = p(x = 5) + p(x = 4) +... + p(x = 0)

The individual probabilities can be obtained using the formula above or the use of a calculator

P(x ≤ 5) = 0.17547 + 0.17547 + 0.14037 + 0.08422 + 0.03369 + 0.00674

P(x ≤ 5) = 0.61596

4 0

3 years ago

A sector with a radius of 8 cm has an area of 56pi cm2. What is the central angle measure of the sector in radians?

Maurinko [17]

Answer:

$\frac{7\pi}{4}$ .

Step-by-step explanation:

Given information:

Radius of circle = 8 cm

Area of sector = $56\pi\text{ cm}^2$

Formula for area of sector is

$A=\dfrac{1}{2}\theta r^2$

where, r is radius and $\theta$ is central angle in radian.

Substitute $A=56\pi$ and r=8 in the above formula.

$56\pi=\dfrac{1}{2}\theta (8)^2$

$56\pi=\dfrac{64}{2}\theta$

$56\pi=32\theta$

$\dfrac{56\pi}{32}=\theta$

$\dfrac{7\pi}{4}=\theta$

Therefore, the measure of the sector in radians is $\frac{7\pi}{4}$ .

6 0

3 years ago

Multiply and simplify 3a(4a^2 - 5a + 12)

elena-s [515]

3a(4a^2 - 5a + 12)=12a^3-15a^2+36a (C)

4 0

3 years ago

Last week a pound of strawberries cost $4. This week they are 24% more expensive. What is the current price of a pound of strawb

puteri [66]

Answer:

$5.96

Step-by-step explanation:

I divided 4 by 100 then multipley by 24

8 0

2 years ago