How to calculate the ground bearing pressure under the crawler track of crawler crane?
Example: During lifting the pressure on the track is 85ton/m2.

Answer:

Infant mortality will reduce to 33% in 1.63 years

Step-by-step explanation:

Let the population be X

Population after 1 year

\(X - 7.3\) % of \(X\)

\(X -0.073 X\\0.927X\)

As we know

\(P = P_0 * e^{rt}\)

Substituting the given values we get -

\(\frac{P_0 - 0.33P_0}{P_0} = e^{-0.33 * t}\\0.67 = e^{-0.33 * t}\\\)

Taking log on both sides we get -

\(-0.20273 = -0.33 * t\\t = 1.627\)

You can form a general expression for resultant reduction percentage after t years. Then equate it with 33% to get the value of t

The time that will be taken by the program to reduce the infant mortality rate by 33% is approx 3.35 years.

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

\(\dfrac{a}{100} \times b\)

The rate of decrement for infant mortality rate is 7.3% per year.

Let the mortality rate in the start be \(r\)

Then after 1 year it becomes

\(r - \dfrac{r}{100} \times 7.5 = r(1-\frac{7.5}{100}) = r_1 \text{\: (say)}\)

After 1 more year, we will have:

\(r_1 -> r_1(1 - \frac{7.5}{100}) = r(1-\frac{7.5}{100})(1-\frac{7.5}{100}) = r(1-\frac{7.5}{100}) ^2 = r_2 \text{\: (say)}\)

Thus, after t years, we will have:

\(r_t = r(1-\frac{7.5}{100})^t\)

Simplifying it, we get:

\(r_t = r(1 - 0.075)^t = r(0.925)^t\)

The percent of decrement can be calculated by:

\(p = \dfrac{\text{old rate - new rate}}{\text{old rate}} \times 100\)

Thus,

the percent of decrement after t years will be

\(p = \dfrac{r - r_t}{r} \times 100 = \dfrac{r(1- (0.925)^t)}{r} \times 100 = 100(1-0.925^t)\\\\p = 100(1-0.925^t)\)

We need the time after which the infant mortality rate would be reduced by 33%, thus, p = 33%

or

\(p = 33\\p = 100(1-0.925^t) = 33\\1 -0.925^t = \dfrac{33}{100}\\t = log_{0.925}(1 - \dfrac{33}{100}) \approx 3.3525\)

Thus, after approx 3.35 years, the mortality rate would decrease by 33%

Thus,

The time that will be taken by the program to reduce the infant mortality rate by 33% is approx 3.35 years.

Learn more about percentage here;

https://brainly.com/question/11549320

Step-by-step explanation:

2A = ph+qh

2A-qh = ph

(2A-qh)/h = ph/h

p = (2A - qh)/h

Therefore Table 1 represents the function g(x) obtained by shifting f(x) 5 units down.

To shift a function f(x) 5 units down, we need to subtract 5 from the y-values of f(x) or add a constant -5 to the function. This means that the new function g(x) will be f(x) - 5. In other words, we take the table of values for f(x) and subtract 5 from each of the y-values to get the new table of values for g(x).Let's take a look at the given tables of values and see which one represents the function g(x) obtained by shifting f(x) 5 units down.

Table 1:  From this table, we can see that when x = 2, f(x) = 5. If we subtract 5 from this value, we get 0, which is the correct value of g(2). Similarly, when x = 3, f(x) = 7. If we subtract 5 from this value, we get 2, which is the correct value of g(3). Therefore, this table represents the function g(x) obtained by shifting f(x) 5 units down.

Table 2: From this table, we can see that when x = 0, f(x) = 1. If we subtract 5 from this value, we get -4, which is not the correct value of g(0). Therefore, this table does not represent the function g(x) obtained by shifting f(x) 5 units down.

Table 3: From this table, we can see that when x = -2, f(x) = -3. If we subtract 5 from this value, we get -8, which is not the correct value of g(-2). Therefore, this table does not represent the function g(x) obtained by shifting f(x) 5 units down.

Table 4: From this table, we can see that when x = 5, f(x) = 0. If we subtract 5 from this value, we get -5, which is not the correct value of g(5). Therefore, this table does not represent the function g(x) obtained by shifting f(x) 5 units down.In conclusion,

For such more question on subtract

https://brainly.com/question/28467694

#SPJ8

A

0.0036

Bsshsjsjsjsnsn

Answer:

A 0.0036

Is correct

ED2021

The calculated base area of the paperweight is 9.6 square cm.

To calculate the base area of the paperweight, we can use the formula for the volume of a three-dimensional object:

Volume = Base area x Height

In this case, we know that the height of the paperweight is 4cm and the volume is 38.4 cubic cm.

So we can rearrange the formula and solve for the base area:

Base area = Volume / Height

Substituting the values we have:

Base area = 38.4 cubic cm / 4cm

Base area = 9.6 square cm

Therefore, the base area of the paperweight is 9.6 square cm.

Read more about area at

https://brainly.com/question/24487155

#SPJ1

The fish tank has a total volume of 288 inch³. As a result, Jessica's new fish tank has a capacity of 288 inch³ for water.

The volume of a rectangular prism can be calculated using the formula:

V = l x b x h..........(i)

where,

V ⇒ Volume

l  ⇒ length

b ⇒ width

h ⇒ height

From the question, we are given the values,

l = 8 inches

b = 4 inches

h = 9 inches

Putting these values in equation (i), we get,

V = 8 x 4 x 9

⇒ V = 288 in³

Therefore, the fish tank has a total volume of 288 inch³. As a result, Jessica's new fish tank has a capacity of 288 inch³ for water.

Learn more about the volume of rectangular prism on:

https://brainly.com/question/24284033

Answer:

₱ 248,452.51

Step-by-step explanation:

₱ 248,452.51

The SSS congruence theorem is used to prove that triangles MAH and THA are congruent to each other. See proof below.

"SSS" stands for side-side-side congruence theorem, which says that given the criteria that two triangles both have three corresponding sides that are equal or congruent to each other, both triangles are congruent.

The proof below shows how we can apply the SSS to prove that triangles MAH and THA are congruent to each other.

Statement                                 Reason                                            

1. MA ≅ TH                               1. Given

2. MH ≅ AT                              2. Given

3. AH ≅ HA                              3. Reflexive property of congruence

4. ΔMAH ≅ ΔTHA                   4. SSS congruence theorem

Learn more about the SSS congruence theorem on:

https://brainly.com/question/2102943

#SPJ1

The value of m ∠ABC=86° ,because of the cyclic quadrilaterals.

Hence, Option (B) is correct.

Since, We know that,

A cyclic quadrilateral is a four-sided polygon whose vertices all lie on a common circle.

The opposite angles of a cyclic quadrilateral have a total of 180°.

Hence, We can formulate;

m ∠ABC +  m ∠ADC  = 180°

m ∠ABC + 94° = 180°

m ∠ABC = 180° - 94°

m ∠ABC = 86°

Similarly, one can find m∠DCB

m∠DAB +  m∠DCB  = 180°

99° + m∠DCB = 180°

m∠DCB = 180° - 99°

m∠DCB = 81°

Hence, m∠ABC = 86°

Learn more about cyclic quadrilaterals here:

brainly.com/question/14352697

#SPJ1

The following form has two parallel sides, and, in accordance with the provided assertion, its area is 21 cm².

Area is the entire amount of space occupied by a flattened (2-D) surface or form of an item. The area of a planar figure is the space that its perimeter encloses. The quantity of unit rectangles that completely encircle a closed figure's surface is its area. Square units such as cm² and m² are used to measure area.

The ratio will also be 1/2 * (bases 1 + base 2) * length since it is a trapezium.

So, 1/2 * ( 9+5) * 3

   = 1/2 * 14 * 3

   =  1/2 * 42

   =  21 cm²

To know more about Area visit:

https://brainly.com/question/17335144

#SPJ1

The period of the sound wave created by the tuba is approximately 0.0134 seconds.

The speed of sound in air is given as 343 meters per second. The formula relating the speed of sound, wavelength, and period of a wave is:

v = λ × f

Where:

v = speed of sound (343 m/s)

λ = wavelength (4.61 m)

f = frequency (unknown)

To find the period, we need to determine the frequency of the sound wave. The period (T) is the reciprocal of the frequency (f), so we can rewrite the formula as:

v = λ / T

Rearranging the equation to solve for the period (T), we get:

T = λ / v

Substituting the given values, we have:

T = 4.61 m / 343 m/s

Calculating the value, we find:

T ≈ 0.0134 seconds

Therefore, the period of the sound wave created by the tuba is approximately 0.0134 seconds.

for such more question on wavelength

https://brainly.com/question/10728818

#SPJ8

9514 1404 393

Answer:

  B.  line AB

Step-by-step explanation:

The terminal point must be named first when naming a ray.

The vertex must be named in the middle when naming an angle.

The order of points does not matter when naming a line.

Answer:

The range of values from one job is between $50 and $650.

Step-by-step explanation:

An electrician charges y amount to work x hours on a job. The electrician charges a $50 service fee and $30 per hour.

This means that his earnings in a job can be modeled by the following function:

\(y = 30x + 50\)

The electrician works maximum of 20 hours on any job. What is the range of values for one job?

Minimum, he works 0 hours, and earns:

\(y(0) = 30(0) + 50 = 50\)

Maximum, he works 20 hours, and earns:

\(y(20) = 30(20) + 50 = 650\)

The range of values from one job is between $50 and $650.

Answer:

Step-by-step explanation:

The answer is 1.25

In order to calculate a partial product, we need to separate each digit from each number, then we multiply them similar to the distributive property:

The mistake in Nick's steps was made in Step 2, where he multiplied 30 by 2 tens, that is, 30 by 20, resulting in 600. The correct product in this step should be 30 by 2 ones, that is, 30 by 2, resulting in 60.

Answer:

There are 35 books

Step-by-step explanation:

I hope this HELP! :)

The perimeter of the rectangle is 62 square units.

The perimeter of a rectangle can be calculated using the formula:

P = 2(L + W)

Where:

L is the length of the rectangle

W is the width of the rectangle

We have:

L = 20 units

W = 11 units

Substituting into the formula:

P = 2(20 + 11)

P = 2(31)

P = 62 square units

Learn more about perimeter of rectangle on:

https://brainly.com/question/19819849

#SPJ1

Question in English

What is the perimeter of a rectangle if it is 20 long and 11 wide?

Answer:

D. (1, 1), (2, 2), (3, 3), (4,4), (5,5)

Hope this helps!

Answer:7 boxes

Step-by-step explanation:

She has 115 books which each box hold 17 so 115/17 is 6. Something so you have to round it to 7 to be able to fit them all

Answer:

4.2.1)  R140 000

4.2.2)  R144 758.28

4.2.3)  Option 2

Step-by-step explanation:

To calculate the return on Ayanda's investment using Option 1, we can use the simple interest formula.

\(\boxed{\begin{minipage}{7 cm}\underline{Simple Interest Formula}\\\\$ I =Prt$\\\\where:\\\\ \phantom{ww}$\bullet$ $I =$ interest accrued \\ \phantom{ww}$\bullet$ $P =$ principal amount \\ \phantom{ww}$\bullet$ $r =$ interest rate (in decimal form) \\ \phantom{ww}$\bullet$ $t =$ time (in years) \\ \end{minipage}}\)

Given values:

Substitute the given values into the formula and solve for I:

\(I=200000 \cdot 0.12 \cdot 6\)

\(I=24000 \cdot 6\)

\(I=144000\)

Therefore, the return on Ayanda's investment using Option 1 is R144000.

\(\hrulefill\)

To calculate the return on Ayanda's investment using Option 2, we can use the compound interest formula.

\(\boxed{\begin{minipage}{7 cm}\underline{Annual Compound Interest Formula}\\\\$ I=P\left(1+r\right)^{t}-P$\\\\where:\\\\ \phantom{ww}$\bullet$ $I =$ interest accrued \\ \phantom{ww}$\bullet$ $P =$ principal amount \\ \phantom{ww}$\bullet$ $r =$ interest rate (in decimal form) \\ \phantom{ww}$\bullet$ $t =$ time (in years) \\ \end{minipage}}\)

Given values:

Substitute the given values into the formula and solve for I:

\(I=200000(1+0.095)^6-200000\)

\(I=200000(1.095)^6-200000\)

\(I=200000(1.72379142...)-200000\)

\(I=344758.28426...-200000\)

\(I=144758.28426...\)

\(I=144758.28\)

Therefore, the return on Ayanda's investment using Option 2 is R144758.28.

\(\hrulefill\)

Comparing the returns from both options, we find that Option 1 offers a return of R144000, while Option 2 offers a return of R144758.28. As R144758.28 > R144000, then Option 2 will render the most money for Ayanda's investment.

Answer:

54°

Step-by-step explanation:

Let ∠CYX=x

AB║CD

∠AXE=∠CYX  (corresponding angles)

∠AXE=3∠CYX-108

x=3x-108

3x-x=108

2x=108

x=108/2=54°

∠AXE=∠CYX=x=54°

∠BXY=∠AXE=54° (Vertically opposite angles)

Answer:

3 + 11x

Step-by-step explanation:

Nuestra ecuación será: 3 + 8x + 3x

No sabemos qué es x, así que simplemente sumamos términos semejantes y obtenemos 3 + 11x

Espero que esto haya ayudado, por favor marque lo más inteligente, ¡gracias!

The most appropriate viewing window for determining the domain and range of the function f(x) = (x^2 - 81)/(x^2 - 11x + 18) would be:

Xmin: -10, Xmax: 10

Ymin: -10, Ymax: 10

This window allows you to see a wide range of x-values and y-values, giving you a comprehensive view of the graph and helping you determine the domain and range of the function accurately.

Answer:

1/12

Step-by-step explanation:

Answer:

486 feet will reached after 5.25 seconds, when rounded to nearest tenth would be 5.3

Step-by-step explanation:

The group of people who participated in the study's sample survey was chosen at random to participate in it by the national grocery store chain. In this instance, the sample comprises the 1,000 customers from throughout the nation that participated in the survey. They are a segment of the total consumer base that frequents the chain's retail outlets.

The chain randomly surveyed 1,000 customers from around the country. It concluded from the study that 80% of all customers who hopped into the chain's stores were interested in the service. The nationwide grocery store chain randomly selected the participants in the study's sample survey from the general public.

Learn more about Sample Survey here:

https://brainly.com/question/31670694

#SPJ1