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Harrizon [31]
3 years ago
6

Which choice is NOT a way to find 7 ÷ 3? A- 1/3 of 7 B- 7 × 1/3 C- 1/7 of 3 D- 7/3

Mathematics
2 answers:
Igoryamba3 years ago
6 0
C is wrong. A B C and 7 divided by 3 equal 2.33. C equals 0.43
lutik1710 [3]3 years ago
4 0
The answer is C) 1/7 of 3.
Because all others are correct and this one is incorrect.
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Answer:

4 better inbox

Step-by-step explanation:

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3 years ago
The diagonals of a rhombus are 10 inches and 24 inches. What is the perimeter of the rhombus, in inches?
umka2103 [35]

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Answer:

P<em>=52in is ya answer!</em>

3 0
3 years ago
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vovangra [49]

Answer:

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8 0
3 years ago
Consider the function f given by f(x)=x*(e^(-x^2)) for all real numbers x.
NISA [10]

Answer:

\frac{\sqrt{\pi}}{4}

Step-by-step explanation:

You are going to integrate the following function:

g(x)=x*f(x)=x*xe^{-x^2}=x^2e^{-x^2}  (1)

furthermore, you know that:

\int_0^{\infty}e^{-x^2}=\frac{\sqrt{\pi}}{2}

lets call to this integral, the integral Io.

for a general form of I you have In:

I_n=\int_0^{\infty}x^ne^{-ax^2}dx

furthermore you use the fact that:

I_n=-\frac{\partial I_{n-2}}{\partial a}

by using this last expression in an iterative way you obtain the following:

\int_0^{\infty}x^{2s}e^{-ax^2}dx=\frac{(2s-1)!!}{2^{s+1}a^s}\sqrt{\frac{\pi}{a}} (2)

with n=2s a even number

for s=1 you have n=2, that is, the function g(x). By using the equation (2) (with a = 1) you finally obtain:

\int_0^{\infty}x^2e^{-x^2}dx=\frac{(2(1)-1)!}{2^{1+1}(1^1)}\sqrt{\pi}=\frac{\sqrt{\pi}}{4}

5 0
3 years ago
Read 2 more answers
The line plot below shows the number of juice boxes Leon drank on specific days. Which three dates did Leon drink ten juice boxe
swat32
<h3>Answer: Choice C</h3>

Explanation:

Each X on that chart represents 2 juice boxes.

On the following days

  • October 6
  • October 16
  • October 24

is when Leon drank 10 juice boxes (stack of 5*2 = 10 total)

3 0
2 years ago
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