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3 years ago

A rectangle has length 4 inches and width 3 inches. What is the area? 100pts

Mathematics

2 answers:

aliya0001 [1]3 years ago

7 0

Answer:

12 sq in

Step-by-step explanation:

L=4 in

W=3 in

Formula for Area is length x width (or bxh)

So, l x w = 4 x 3 = 12 sq in (in^2)

Ugo [173]3 years ago

5 0

Answer:

12 inches²

Step-by-step explanation:

Area of rectangle = Length × Width

Length = 4 in

Width = 3 in

Area = 4 × 3

Area = 12 in

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A silo (base not included ) is to be constructed in the form of a cylinder surmounted by a hemisphere. The cost of construction

DENIUS [597]

We are given the equation:

C = (16,000 / r) + (26πr^2 / 3)

<span>First get the 1st derivative:</span>

dC/dr = (-16,000 / r^2) + (52π r / 3)

Equate dC/dr to get the minima:

(-16,000 / r^2) + (52π r / 3) = 0

Multiply everything by r^2:

-16,000 + (52π/3) r^3 = 0

r = 6.65

Therefore the cost at radius = 6.65 is:

C = (16,000 / 6.65) + (26π (6.65)^2 / 3)

C = 3,610.07

So perhaps the interval interest is (0, 3,610.07] if cost or (0, 6.65] if based on radius.

4 0

3 years ago

Fencing encloses a rectangular backyard that measures 300 feet by 600 feet. A blueprint of the backyard is drawn on the coordina

liubo4ka [24]

Answer:

$(x-15)^2+(y-30)^2=36$

Step-by-step explanation:

we know that

The dimensions of the rectangular backyard in the actual are 300 feet by 600 feet

The dimensions of the rectangular backyard in the blueprint are 30 units by 60 units

therefore

If the radius of the circular flower garden in the actual is 60 feet

then

the radius of the circular flower garden in the blueprint is 6 units

Find the center of the radius in the blueprint

Remember that the circular flower garden is in the center o the backyard

To find out the center, determine the midpoint of the rectangular backyard

C((0+30)/2,(0+60)/2)

C(15,30)

The equation of a circle in center radius form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(15,30)\\r=6\ units$

substitute

$(x-15)^2+(y-30)^2=6^2$

$(x-15)^2+(y-30)^2=36$

4 0

3 years ago

Which table represents the graph of a logarithmic function in the form Y-log, when 5 > 1?

Viktor [21]

Answer:

Determine the domain and range of a logarithmic function.

Determine the x-intercept and vertical asymptote of a logarithmic function.

Identify whether a logarithmic function is increasing or decreasing and give the interval.

Identify the features of a logarithmic function that make it an inverse of an exponential function.

Graph horizontal and vertical shifts of logarithmic functions.

Graph stretches and compressions of logarithmic functions.

Graph reflections of logarithmic function

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Identify the fraction that represents the following ratio in simplest form: 13:39

bogdanovich [222]

1:3 because 13/39 is basically 1/3 when simplified

8 0

4 years ago

Can someone help me find the volume of this shape?

ira [324]

Answer:

Step-by-step explanation:

To find volume you have to use the formula (length x width x height.)

So by looking at it you can see that it's 3 units long, 3 units in wide, and 2 units tall. Knowing that, you then plug in those numbers to the formula. That would be 3x3x2. Any calculator will work.

7 0

3 years ago