Solve the inequality.
-2c-7-9
Enter the correct answer

If the sampled points are spatially correlated in kriging, then one would expect an increase in the semivariance with an increase in the distance between sampled points.

Step-by-step explanation:

1. Kriging is a geostatistical interpolation technique used to estimate values at unsampled locations based on sampled data points.
2. Spatial correlation refers to the relationship between values at different locations in space.
3. Semivariance is a measure of how much the values at different locations vary, and it is used to quantify the spatial correlation in kriging.
4. When the sampled points are spatially correlated, the semivariance will generally increase as the distance between sampled points increases.
5. This increase in semivariance with distance is due to the fact that points that are farther apart are less likely to have similar values than points that are closer together.

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Answer:

All of those options apply to 100.

Answer:

A, B, C, D

Step-by-step explanation:

100 is a whole number there are no decimals or fractions

its a real number because practically every number is a real number.

its rational because it doesnt repeat, it ends

its an integer because all whole numbers are integers

c, d, and e. this is because c equals 21, d equals 27, and e equals 9

Answer:

slope = (2 - 4) / (3 - (-1)) = -2 / 4 = -1/2

Step-by-step explanation:

Answer:

Step-by-step explanation:2

The number of birth twins in 2000 is 119,500.

Given,

Between 2000 and 2015 the number of twin births in a certain country increased by 12% to approximately 133,840.

We need to find out how many twin births were there in 2000.

We always represent the original value to be 100%.

If x% increased then we will represent it as:

100% + x% = ( 100 + x ) % is the final value.

If x% decreases then,

( 100 - x ) % is the final value.

Find the number of twin births between 2000 and 2015.

It increased by 12% so, we have

100% + 12% = 133,840

112% = 133,840

Find the number of twin births in 2000.

If from 2000 to 2015 it was increased by 12% then in 2000 we have,

= 100%

We have,

112% = 133,840

Multiply both sides by 100/112.

100/112 x 112% = 100/112 x 133,840

100% = 119500

Thus the number of birth twins in 2000 is 119,500.

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Answer:

Triangles are similar using AAA rule of similarity.

Step-by-step explanation:

Let's take triangle ACD. Where <D =60 degrees. <A =74.9 degrees and let's find <C using angle sum property of a triangle.

Please remember the sum of interior angle of a triangle is 180 degrees.

So, m<D= 180-60-74.9 =45.1 degrees.

Other triangle RST has the two angles as 74.9 degrees and 45.1 degrees.

So, third angle <T= 180-74.9-45.1= 60 degrees.

If we see the angles of a triangle, both has same angle measures.

That's <A= <R

<C= <S

<D= <T

So, the triangles are similar using AAA rule of similarity.

Applying the AA similarity theorem, the statements about the relationship of both triangles that are true are:

∠C ≅ ∠S

∠D ≅ ∠T

ΔDCA ~ ΔTSR

The AA similarity theorem states that when two angles in a triangle are congruent to corresponding two angles in another triangle, then both triangles can be proven to be congruent to each other.

Given triangles DCA and TSR, the following are true based on the AA similarity theorem:

∠C is congruent to ∠S (both are 45.1° each)

∠D is congruent to ∠T (60.0° each)

ΔDCA is similar to ΔTSR

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The graph shows the  inequality x² ≤ 16

An inequality is a relationship that makes a non-equal comparison between two numbers or other mathematical expressions e.g. 2x > 4.

Inequalities are often used to describe conditions or constraints in real-world problems.

You will notice that the values represented in the graph ranges from -4 to 4. Thus, solving x² ≤ 16 will produce these values. That is:

x² ≤ 16

x ≤ ±√16

x ≤ ±4

x ≤ -4 or x ≤ 4

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Some examples of he most common types of retirement accounts are:

The 401 (k) is a type of requirement plan that allows employees to contribute a percentage of their wages to individual accounts. Some of it's features are:

The term 401(k) is derived from the section of the US Internal Revenue Code that established the 401(k) retirement plan.

SEP is the accronym for Simplified Employee Pension. SEP IRA is a retirement savings plan a sort of domesticated plan that employers created to the advantage of themselves and their employees.

The advantages of the SEP IRA are:

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We would need to add 8 more sets of 3 candies to 23 candies in order to have the same amount as Casey.

To find this, we can divide the total amount of candy Johnny has (23) by the amount of candy Casey has (3) and round up to the nearest whole number:

(23) / (3) = 7.666...

Since we can't have a fraction of a set of candies, we must round up to the nearest whole number, which is 8.

So, to have the same amount of candy as Casey, we would need to add 8 more sets of 3 candies to Johnny's 23 candies.

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Answer:

4.75 h

Step-by-step explanation:

Answer:

13.5%

Step-by-step explanation:

8100 interest/4 years=2,025 interest per year

principal x interest rate=interest per year

15000 x interest rate=2025

interest rate =2025/15000

interest rate=.135 or 13.5%

tuesday: -28.5

Wednesday: -5

Thursday: -11.8

Friday: -4.5

Answer:

C.  2 StartRoot 2 EndRoot + 2 StartRoot 5 EndRoot units

Step-by-step explanation:

Answer:

The Answer is C.

Step-by-step explanation:

2 StartRoot 2 EndRoot + 2 StartRoot 5 EndRoot units

The correct value of the number would have to be added to "complete the square" is, 89

We have to given that;

The expression is,

⇒ x²- 14x - 40 = 0

Now, We can formulate;

⇒ x² - 14x - 40 = 0

Add 89 to complete square as;

⇒ x² - 14x + 89 - 40 = 0

⇒ x² - 14x + 49 = 0

⇒ (x - 7)² = 0

Hence, The correct value of the number would have to be added to "complete the square" is, 89

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Answer: 1/245

Step-by-step explanation:

to find the answer, multiply the two together.

The rate of change of the function is -4, as the change in y (from 15 to 11 and then to 7) is -4 for each unit change in x (from 1 to 2 and then to 3).

A unit is a standard measure of a quantity. It is a normalized quantity used as a reference to compare other measurements. Units are used in mathematics, science, engineering, and many other disciplines. The most common units of measure are length, mass, volume, time, and temperature. Other quantities, such as electric current and light intensity, also have their own units. Units are important because they provide an easy way to express the size and type of a measurement.

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Answer:

178.50

Step-by-step explanation:

8.50 · 7

59.5 · 3

178.50

Aisha earned C178.50 in a week.

First, multiply the number of hours worked per day with the amount earned per hour.

7 × C8.50 = C59.50

Then, use that answer and multiply it by the number of days worked.

3 x C59.50 = C178.50

Answer:3a4-2a2+5a-10)-(2a4+4a2+5a-2)  

remove first set of parentheses:

apply "-" sign to second parentheses (distributive prop):

the - of a - becomes a + :

combine like terms:

Factor out the variables that are alike:

{(1)a^4 + (-6)a^2 + 0a + (-8)}}}  

0a is just 0, makea the "a" term go away:

can try to factor as squares, but it doesn't work out:

8 = (-4) x (+2) product factors cannot add to make 6.

Step-by-step explanation:

Answer:

\( \frac{88}{7} units\)

Step-by-step explanation:

Circumference of semi-circle=

\(\pi \: r\)

\( \frac{22}{7} \times 4 \\ \frac{88}{7} \)

Rewrite the root expressions as fractional exponents:

\(\dfrac{\sqrt[3]{7}}{\sqrt[5]{7}} = \dfrac{7^{1/3}}{7^{1/5}}\)

Recall that \(\frac{a^m}{a^n} = a^{m-n}\), so that

\(\dfrac{7^{1/3}}{7^{1/5}} = 7^{1/3 - 1/5}\)

Simplify the exponent:

\(\dfrac13 - \dfrac15 = \dfrac5{15} - \dfrac3{15} = \dfrac{5-3}{15} = \dfrac2{15}\)

Then you end up with

\(\dfrac{\sqrt[3]{7}}{\sqrt[5]{7}} = 7^{2/15}\)

Answer:

I think it is 3 feet

Step-by-step explanation:

12:9 is equal to 4:3

4:? should also be equal to 4:3, so ?=3

Hope this helps

let me know if it does and if it is right

The mass of the triangular region with vertices (0, 0), (5, 0), and (0, 3), with density function ρ(x,y) = x^2y^2, is approximately 10.625 units.

To find the mass of the triangular region, we need to integrate the density function ρ(x,y) = x^2y^2 over the region's domain. By integrating the density function over the region, we can calculate the total mass.

In this case, the region is a triangle with vertices (0, 0), (5, 0), and (0, 3). To integrate the density function, we need to set up the double integral over the triangle's domain, which is determined by the range of x and y values that cover the triangle.

By evaluating the double integral and performing the calculations, we can find the mass of the triangular region to be approximately 10.625 units.

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The basic unit of mass of the ball in the metric system is the gram.

The base units of length (distance), capacity (volume), and weight (mass) in the metric system are the meter, liter, and gram, respectively. We utilize units that are derived from metric units to measure smaller or greater quantities.

Mass is a physical body's total amount of matter. Inertia, or the body's resistance to acceleration when a net force is applied, is also measured by this term. The strength of an object's gravitational pull to other bodies is also influenced by its mass.

Therefore, the basic unit of mass of the ball in the metric system is the gram.

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Answer:

\(f^{-1} (x)\)=\(\frac{4}{1+x}\)

Step-by-step explanation:

The first step is to switch y for x and x for y so the equation will look like

x=\(\frac{4-y}{y}\)

the next thing you do is isolate y so you have to multiply y to both sides to get

\(xy=4-y\) now you got to add y to both sides which would get you

xy+y=4

since xy and y share a y value you have to try and factor out y which would get you

y(x+1)=4

the final step is to divide x+1 on both sides

y\(\frac{(x+1)}{x+1}\)=\(\frac{4}{x+1}\)

which since x+1 and x+1 crosses each other out we are left with

y=\(\frac{4}{1+x}\)

The true statements are The grapefruit is 15 feet above the ground when it is launched. The domain of the function h only contains values greater than or equal to 0.

The grapefruit will hit the ground at 3 seconds.

This statement cannot be determined solely based on the given information. The equation provided, h(t) = 15 + 60t - 16t^2, represents the height of the grapefruit as a function of time. To determine when the grapefruit hits the ground, we need to find the value of t for which

h(t) = 0.

The value 10 does not belong to the domain of h.

The domain of the function h(t) is determined by the restrictions on the variable t. In this case, since h(t) represents the height of the grapefruit, it should be defined for all values of t that are relevant to the situation. From the given information, it is not clear whether the domain includes or excludes the value 10. Therefore, we cannot determine the validity of this statement.

The grapefruit is 15 feet above the ground when it is launched.

According to the equation h(t) = 15 + 60t - 16t^2, the initial height when t = 0 is 15 feet. Therefore, this statement is true.

The domain of the function h only contains values greater than or equal to 0.

The domain of a function represents the set of all valid inputs for the function. In this case, since t represents time, it cannot be negative. Therefore, the domain of h is indeed values greater than or equal to 0. This statement is true.

The same height 1 second after launch and 2 seconds after launch.

To determine if the grapefruit reaches the same height 1 second after launch and 2 seconds after launch, we need to evaluate the function h(t) at those time points.

At t = 1 second, h(1) = 15 + 60(1) - 16(1)^2 = 15 + 60 - 16 = 59 feet.

At t = 2 seconds, h(2) = 15 + 60(2) - 16(2)^2 = 15 + 120 - 64 = 71 feet.

Therefore, the grapefruit does not reach the same height 1 second after launch and 2 seconds after launch. This statement is false.

In summary, the true statements are The grapefruit is 15 feet above the ground when it is launched. The domain of the function h only contains values greater than or equal to 0.

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The given initial value problem's exact solution: y(t) = 1, and thus y(1) = 1. The Euler approximation of y(1) using a step-size h = 0.5 i: y(1) ≈ 1. Given the initial value problem:

y' = ty ' (0)

 = 0

We are to determine the exact solution y(t) and compute y(1), and also find the Euler approximation of y on the interval [0, 1] using a step-size h = 0.5 (half step size).

(a) The given initial value problem is a first-order linear differential equation, whose standard form is:

y' + P(t)y = Q(t), where P(t) = 0 and Q(t) = 0. Thus, the integrating factor is:

I(t) = e^∫ P(t)dt

      = e^∫ 0 dt

      = 1.

The exact solution y(t) is obtained by multiplying both sides of the differential equation by the integrating factor,

I(t) = 1, and integrating:

y' + P(t)y = Q(t) becomes

y' + 0y = 0, which implies

y' = 0.

Hence, y(t) = Ce^0 = C, where C is a constant determined using the initial condition y(0) = 1. Therefore, we have:

C = y(0) = 1.

Hence, the initial value problem's exact solution is y(t) = 1, and thus y(1) = 1.

(b) Euler Approximation of y using step-size h = 0.5We have h = Δt = 0.5, t0 = 0, tn = 1. The number of steps, n, is given by:

n = (tn - t0)/h

n = (1 - 0)/0.5

n = 2.

Therefore, we have two grid points:

t0 = 0, and

t1 = 0 + 0.5

  = 0.5

For the Euler approximation of y on [0, 1], we use the formula:

yi+1 = yi + h * f(ti, yi), for i = 0, 1, 2, ..., n - 1, where

f(ti, yi) = tiyi

= (0)(yi)

= 0, for i = 0, 1, 2, ..., n - 1.

Hence, we have:

y0 = y(0) = 1, and

y1 = y0 + h * f(t0, y0)

= y0 + h * 0

= 1 + 0

= 1

Therefore, the Euler approximation of y(1) using a step-size h = 0.5 is: y(1) ≈ y1 = 1. Therefore, y(1) ≈ 1. The exact solution of the given initial value problem is: y(t) = 1, and thus y(1) = 1. The Euler approximation of y(1) using a step-size h = 0.5 is: y(1) ≈ 1.

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Answer:

Yes it is correct.

2×3=6 (expression) Calculation of index/power:3×0=0.

Hence it is written as six to the power of zero (as you have written above in your QnA)

Answer:

(a) Box model for keeping track of net gain:

Win $3 with probability 2/10 (represented by +3)

Lose $2 with probability 3/10 (represented by -2)

Lose $1 with probability 5/10 (represented by -1)

Box model for keeping track of the number of winning plays:

Win with probability 2/10

Lose with probability 8/10

(b) The expected value for the number of winning plays can be calculated as:

E(X) = np = 5 * 2/10 = 1

The variance can be calculated as:

Var(X) = np(1-p) = 5 * 2/10 * 8/10 = 0.8

The standard error can be calculated as:

SE = sqrt(Var(X)/n) = sqrt(0.8/5) = 0.4

(c) Yes, it would be appropriate to use the normal approximation for the number of winning plays since the number of trials is large enough (n=5) and the probability of success (p=2/10) is not too close to 0 or 1. We can assume that the number of winning plays follows a normal distribution with mean 1 and standard deviation 0.4.

Step-by-step explanation:

Answer:

15.6

Step-by-step explanation:

2(6.5)+2.6

13+2.6

15.6

Answer

0.2 (10y+13

I'm pretty sure this is the answer , your question is not very clear