Answer:
6??
Step-by-step explanation:
the width of a book is about ("25 x 20cm")
the length of a pencil is about 15cm (19cm if unsharpened)
Answer:
Step-by-step explanation:
The density formula is
Rearrange the formula for v. Multiply both sides of the formula by v, then divide both sides by d.
The volume can be found by dividing the mass by the density. The mass is 7525 grams and the density is 1.25 grams per milliliter.
Divide. Note that the grams, or "g" will cancel each other out.
The volume of the rock is 6,020 milliliters.
Answer:
<h2>a) length x = 45ft</h2><h2>b) maximum area = 4050 ft²</h2>
Step-by-step explanation:
Given the quadratic equation A=−2x2+180x that gives the area A of the yard for the length x, to maximize the area of the yard then dA/dx must be equal to zero i.e dA/dx = 0
If A=−2x²+180x
dA/dx = -4x + 180 = 0
-4x + 180 = 0
Add 4x to both sides
-4x + 180 + 4x = 0 + 4x
180 = 4x
x = 180/4
x = 45
<em></em>
<em>Hence the length of the building that should border the yard to maximize the area is 45 ft</em>
<em></em>
To find the maximum area, we will substitute x = 45 into the modelled equation of the area i.e A=−2x²+180x
A = -2(45)²+180(45)
A = -2(2025)+8100
A = -4050 + 8100
A = 4050 ft²
<em>Hence the maximum area of the yard is equal to 4050 ft²</em>
Hello and Good Morning/Afternoon:
<u>Let's take this problem step-by-step</u>:
<u>The problem want's to find h(4)</u>
<u>Answer: h(4) = 62</u>
<u></u>
Hope that helps!
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