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2 years ago

Solve:

Mathematics

1 answer:

kodGreya [7K]2 years ago

8 0

I did the calculations and he walks 13 miles a day.

Explanation: So we just write in this form:

1 × 52 divided by 4 which gives the answer 13 miles.

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Hope this helps

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Evaluate the expression for n = 8. 6(n + 1) =?

e-lub [12.9K]

Answer:

Step-by-step explanation:

n = 8

6(n + 1)

6(8 + 1)

6(9)

7 0

3 years ago

I need help what is 1+1=? I’ll give brainliest to whoever gets it first

ANTONII [103]

Answer:

hmmmm. probably 2? I think it's two

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3 years ago

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A pigpen is to be enclosed using 640 m of fencing along three of its sides, the fourth side being a barn. Determine the dimensio

Basile [38]

Answer:

$W_{max}=480m\\ L_{max}=160m$

Step-by-step explanation:

Since we know we only have 640 feet of fence available, we know that L + W + L = 640, $\implies$ 2L + W = 640. This allows us to represent the width, W, in terms of L: W = 640 – 2L

Remember, the area of a rectangle is equal to the product of its width and length, therefore,

$A_{\rm pigpen}=L(640-2L)\implies 640L-2L^2$

Notice that, quadratic has been vertically reflected, since the coefficient on the squared term is negative, so the graph will open downwards, and the vertex will be a maximum value for the area.

recall,

$x_{max}=-b/2a$
$f(x)_{max}=f(x_{max})$

Since our function is A(L)=640L-2L², we get

a=-2
b=640

plug in the value of a and b into the first formula:

$L_{max}=-(640)/2(-2)\implies 160$

$A(L)_{max}=640(160)-2(160)^2\implies 76800$

hence,the dimensions of the pen that will maximize the area are L=160m and W=76800/160=480m

and we're done!

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2 years ago

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Lelechka [254]

Answer:

1. 1.6

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3 years ago

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Number the steps for balancing equations:

Stels [109]

Step 1: The Unbalanced Chemical Equation. The unbalanced chemical equation is given to you. ...
Step 2: Make a List. ...
Step 3: Identifying the Atoms in Each Element. ...
Step 4: Multiplying the Number of Atoms. ...
Step 5: Placing Coefficients in Front of Molecules. ...
Step 6: Check Equation. ...
Step 7: Balanced Chemical Equation.

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3 years ago