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Alla [95]
3 years ago
5

Do the ratios 4/9 and 12/20 form a proportion?

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
4 0

Answer:

no

Step-by-step explanation:

12/20 = 60%

4/9 = 44.44%

These are not equal.

please mark brainleyst

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A recipe that serves 6 people calls for 1 1/2 ( mixed number) pounds of meat. You have 8 pounds of meat. How many people can you
Gnom [1K]
72 people. Multiply 8 times one and a half, and then by six. 
5 0
3 years ago
The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are 0.4521, 0.3970, 0.1307, 0.0
kicyunya [14]

Answer:

The standard deviation of given probability distribution is 0.767.

Step-by-step explanation:

We are given the following information in the question:

  X:      0                  1                  2                3                  4

P(x):      0.4521         0.3970       0.1307        0.0191          0.0010

Formula:

\text{Mean} = \sum X.P(x)\\= 0(0.4521) + 1(0.3970) + 2(0.1307) + 3(0.0191) + 4(0.0010)\\= 0.7197

\mu = 0.7197

Formula:

\text{Variance} = \sum (X-\mu)^2E(x)\\= (0-0.7197)^2(0.4521)+(1-0.7197)^2(0.3970)+(2-0.7197)^2(0.1307)+(3-0.7197)^2(0.0191)+(4-0.7197)^2(0.0010) \\=0.587

\text{Standard Deviation} = \sqrt{\text{Variance}}\\= \sqrt{0.587} = 0.767

The standard deviation of given probability distribution is 0.767.      

3 0
4 years ago
adam is three years younger than twice bobs age. in 5 years adams age will be 8 years more than bobs age. what are their 2 ages
n200080 [17]
Adam is 9 years old and Bob is 6. Twice Bob’s age is 12, three years younger than that is 9. If Adam is 9 now then in five years, Adam will be 14, which is 8 more than 6.
3 0
3 years ago
The graph of a linear function is shown,
Ivan

Answer:

postive

Step-by-step explanation:

im asian

8 0
2 years ago
Why did I get it wrong ? I’m finding constant B and idk what’s wrong with my step.
Klio2033 [76]

Answer:

\large \boxed{\sf \ \ A=5, \ \ B=-13 \ \ }

Step-by-step explanation:

Hello,

What you did is correct...

(Ax-3)(x-2)=5x^2+Bx+6\\\\\text{*** we develop the left side ***}\\\\Ax^2+(-2A-3)x+6=5x^2+Bx+6

... and you found A by identifying the term in x^2 to get A = 5, right?

<u>What about the other terms?</u>

<u />

We can then identify the like terms:

>>> term in x^2\\

   A = 5

>>> term in x

   -2A+3=B

>>> constant term

   6 = 6

As we know that A=5 it means that B = -2*5-3=-13

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0
4 years ago
Read 2 more answers
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