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love history [14]
2 years ago
13

Feng needs to build a rectangular shipping box with a volume of 9 cubic feet. He has two pieces of plywood that measure 2 feet w

ide and 3 feet long to serve as the bases of the box. How tall must Feng make the box?
Mathematics
2 answers:
Nataly [62]2 years ago
7 0

Answer:

54 feet

Step-by-step explanation:

9x3x2=54

horsena [70]2 years ago
5 0

Answer:

1.5 feet

Step-by-step explanation:

The box needs to have a volume of 9 cubic feet.

Volume is l*w*h.

We know the width is 2 ft and the length is 3 ft.

2*3*h=9

6*h=9

Divide by 6

h=9/6

h=1.5

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To describe a specific arith-
Bezzdna [24]

Answer:

f(x) = 7x + 30

Step-by-step explanation:

We need at least two points to write the equation of a straight line.

The recursive formula that Elijah wrote is:

f(0) = 30

f(n + 1) = f(n) + 7

When we substitute n=0, we get:

f(0 + 1) = f(0) + 7

f(1) = 30 + 7

f(1) = 37

The points (0,30) and (1,37) lies on this line.

The equation of this line is of the form:

f(x) = mx + b

where b =30 is the y-intercept and m=7 is the slope.

We plug in these values to get:

f(x) = 7x + 30

Note that the slope of the line is equal to the common difference of the Arithmetic Sequence.

You could also use the two points to find the slope:

m =  \frac{37 - 30}{1 - 0}  = 7

4 0
2 years ago
If the perimeter of an equilateral triangle is 30 ft, what is the area?
Sergio039 [100]
Divide the perimeter by 3 to find the side length.
Since the formula for the are of a triangle is
1/2 * b * h the height must be found.
If a perpendicular line is drawn from the apex of the triangle, a right triangle is formed with a base of 5 and a hypotenuse of 10. Also since it originally was equilateral the base angle is 60 degrees. The rules for finding lengths of sides of equal. Triangles is long leg = sqrt3 * short leg
the height is the long leg so the height is 5sqrt3.
A=(1/2)(10)(5sqrt3)= 25sqrt3
8 0
3 years ago
The health benefits Daisy receives from his employer covers 45% of the total montly premium of $350.00. How much does Daisy have
aksik [14]

Answer:

$192.5

Step-by-step explanation:

1. turn 45% into .45

2. multiply .45 x 350

3. get 157.5 and then subtract 350-157.5

4. answer is 192.5

8 0
2 years ago
Jada has read 3/5 of a book. She has read 75 pages so far. How many pages are in the whole book? Consider drawing a model to hel
Lemur [1.5K]

75 \div  \frac{3}{5}  = 125

There are 125 pages in the whole book.

//

Proof:

125 \times   \frac{3}{5}  = 75

7 0
3 years ago
Read 2 more answers
Find the total area of a round section of land that has a 2.5 foot wide enclosure of pebbles surrounding a round garden of flowe
Elena-2011 [213]

Answer:

Step-by-step explanation:

Since the land is a round enclosure, and it has 2.5 foot wide enclosure of pebbles surrounding, then the circumference of the garden is 2.5ft.

First we need to get the diameter of the garden using the formula;

Circumference= πd

2.5 = πd

d = 2.5/π

d = 2.5/3.142

d =0.796 feet

The total area of a round section of the land = πd²/4

The total area of a round section of the land = π(0/796)²/4

The total area of a round section of the land  = 1.9892/4

<em>The total area of a round section of the land  = 0.4973 ft²</em>

5 0
3 years ago
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