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Alina [70]
2 years ago
15

What is the relationship between the bridge strength and bridge thickness?

Mathematics
1 answer:
ivanzaharov [21]2 years ago
7 0
I need more context to answer this question
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Find the volume of a cylinder that has a radius of 5 inches and a height of 3 inches
Over [174]

Answer:

235.5 cubic inches

Step-by-step explanation:

The volume of a cylinder is found using the volume formula V=\pi r^2h.

Substitute h=3 and r = 5.

V = \pi r^2h\\V = \pi (5^2)(3)\\V=\pi *25*3\\V = 75\pi \\V= 235.5

6 0
3 years ago
WILL MARK BRAINLIEST!!! A contractor has 34 meters of fencing that he is going to use as the perimeter of a rectangular garden.
snow_tiger [21]

Given

Shape of garden: Rectangle

Perimeter: 34 meters

Area: 72 square meters

Length of one side = x

Required

Find the dimension of the rectangle

Let the length of the other side of the rectangle be represented with y.

We start by writing out the perimeter of a rectangle

Perimeter, P = 2(L + B)

Where P is the perimeter; L and B are the length and width of the sides of the rectangle.

In this case L and B are represented by x and y

So,

P = 2(x + y)

By substituting 34 for P

34 = 2(x + y)

Multiply both sides by ½

½ * 34 = ½ * 2(x + y)

17 = x + y

Make y the subject of formula

y = 17 - x

Recall that the sides of the rectangle are represented by x and y.

Hence, the area of the rectangle is as follows.

Area = x * y

Substitute 72 for Area and 17 - x for y

72 = x(17 - x) --- Open bracket

72 = 17x - x² ---- Reorder

x² - 17x + 72 = 0

Now, we have a quadratic equation

Solving by factorisation

x² - 8x - 9x + 72 = 0

x(x - 8) - 9(x - 8) = 0

(x - 8)(x - 9) = 0

x - 8 = 0 or x - 9 = 0

x = 8 or x = 9

Recall that

y = 17 - x.

When x = 8

y = 17 - 8

y = 9

When x = 9

y = 17 - 9

y = 8

Writing out the result, we have

x = 8 , y = 9

Or

x = 9, y = 8

Hence, the dimension of the rectangle is 8 metres by 9 metres

7 0
3 years ago
Solve the problem below
Aliun [14]

1 cm^3 is equal to 1 mL so the answer would probably be 210 mL

6 0
3 years ago
Read 2 more answers
Aniya states that the quotient of -5 divided by 20 is an irrational number. Explain if you agree or disagree with her statement.
pochemuha

Answer:

-5 divided by 20 isn't an irrational number because the quotient of that problem equals -0.25. If the decimal form of a number stops or repeats, the number is rational. If the decimal does not stop and does not repeat, the number is irrational. Therefore, since -0.25 stops, it is a rational number, and not an irrational number.

Step-by-step explanation:

Sorry if the explanation isn't good, or there are some grammar mistakes. But i hope this helps :)

6 0
3 years ago
Use the quadratic formula to determine the exact solutions to the equation. 6x2+4x−3=0 Enter your answers in the boxes. x = or x
Black_prince [1.1K]
The quadratic formula is x= -b +/- √b²-4ac / 2a

In this problem,

a=6
b=4
c=-3

Now, we can plug this into the formula:

x= -4 +/- √4²-(4)(6)(-3) / (2)(6)
x= -4 +/- √16+72 / 12
x= -4 +/- √88 /12
x= -4 +/- 2√22 /12
x= -2 +/- √22 / 6

So,

x= -2 + √22 / 6
x= -2 - √22 / 6
8 0
3 years ago
Read 2 more answers
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