What is the solution to the system of equations shown?
y=2x+2
y=4x-2

No, your friend's statement is incorrect as she did not correctly apply the properties of exponents.

According to the properties of exponents, when a base is raised to a negative exponent, it can be rewritten as the reciprocal of the base raised to the positive exponent. In this case, (k²)⁻⁵ should be equal to 1/(k²)⁵.

Expanding further, (k²)⁻⁵ should be equal to 1/(k²)⁵

= 1/k¹⁰.

So, the correct expression should be (k²)⁻⁵

= 1/k¹⁰, not -k¹⁰.

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Answer:

no solution

Step-by-step explanation:

4x-7=4x+2

-4x +7 -4x +7

0 = 9

0 doesn't equal 9, so there is no solution.

Answer:

no solution

Step-by-step explanation:

4x-7=4x+2

4x-4x=2+7

0=9

that's not true

thus no solution

The corresponding parts are:

The statement is given as:

△ABC was transformed using two rigid transformations.

The rigid transformations imply that:

The images of the triangle after the transformation would be equal

So, the corresponding parts are:

The results are true because rigid transformations do not change the side lengths and the angle measures of a shape

To do this, we simply make use any of the following congruent theorems:

The classmate's claim is that

Only two pairs of corresponding parts are enough to prove the congruent triangle

The above is true because of the following congruent theorems:

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Answer:

Step-by-step explanation:

False. The expected cell frequency in statistical analysis, specifically in the context of contingency tables and chi-square tests, is not based on the researcher's opinion. Instead, it is determined through mathematical calculations and statistical assumptions.

In contingency tables, the expected cell frequency refers to the expected number of observations that would fall into a particular cell if the null hypothesis of independence is true (i.e., if there is no relationship between the variables being studied). The expected cell frequency is calculated based on the marginal totals (row totals and column totals) and the overall sample size.

The expected cell frequency is computed using statistical formulas and is not influenced by the researcher's opinion or subjective judgment. It is a crucial component in determining whether the observed frequencies in the cells significantly deviate from what would be expected under the null hypothesis.

By comparing the observed cell frequencies with the expected cell frequencies, statistical tests like the chi-square test can assess the association or independence between categorical variables in a data set.

Thus, the statement "the expected cell frequency is based on the researcher's opinion" is false. The expected cell frequency is derived through statistical calculations and is not subject to the researcher's subjective input.

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Answer:

To find the x-intercept, substitute in

0

for

y

and solve for

x

. To find the y-intercept, substitute in

0

for

x

and solve for

y

.

x-intercept(s):

(

5

,

0

)

y-intercept(s):

(

0

,

10

)

Step-by-step explanation:

hope it helps make brainlliest ty

Answer:15 hours

Step-by-step explanation:

You have to subtract to get your answer.I'll show you how I got 15:

374-8=366

366-8=358

358-8=350

350-8=342

Whatever number you get after you subtracted, you subtract that number from 8 until you get your answer.

Answer: B) 7x-6=-2x+2

Step-by-step explanation:

Thus, the test for homogeneity follows the same procedures as the test for independence because the assumptions for performing the chi-square test for independence and chi-square test for homogeneity are the same.

The procedures for the chi-square test of homogeneity are the same as for the chi-square test of independence. The data is different for both tests. Tests of independence are used to determine whether there is a significant relationship between two categorical variables from the same population. One population is segmented based on the value of two variables. So there will be a column variable and a row variable.

The chi-square test of homogeneity of proportions can be used to compare population proportions from two or more independent samples, determining whether the frequency counts are distributed identically among different populations.

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a ball of radius 13 has a round hole of radius 3 drilled through its center. then the volume of the resulting solid is 8.5528 x 10³  units³

The radius of the ball is 13 units.

Its volume is

V₁ = (4π*13³)/3

    = 9.2028 x 10³ units³

The drilled hole has the approximate shape of a solid cylinder with radius = 3 and length = 26. Its volume is

V₂ = π*(3²)*26

    = 0.650 x 10³ units³

The volume of the resulting solid is

V₁ - V₂ = 8.5528 x 10³

Answer: 8.5528 x 10³  units³

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Answer:

I agree with Hiroko's statement. Dividing 109.2 by 6 is the same as dividing 109.2 by 6/1, which is the same as dividing 109.2 by 60/10, or 1092/60.

In general, when performing division, we can divide by any equivalent fraction instead of the divisor. For example, instead of dividing by 3, we can divide by 6/2, or 9/3, or 15/5, etc. These fractions are all equivalent to 3, since they represent the same value.

Therefore, dividing 109.2 by 6 is the same as dividing 1092 by 60, and the result will be the same in both cases.

The polynomial solution of the Laplace's equation within R= {(x, y): 1 < x < 2, 0 < y < π/2} is ,

⇒ u(x, y) = Σ[Bn sin(nx)][Cm sin(ωy)].

Given:

Laplace's equation ur + Uyy = 0 within R= {(x, y): 1 < x < 2, 0 < y < ∏/2}

Polynomial solution of Laplace's equation is to be found

We assume the polynomial solution of Laplace's equation in the form of Pn(x) Qm(y).

Let's substitute the given equation in Laplace's equation and simplify it.

ur + Uyy = 0

u Pn(x) Q''m(y) + v P''n(x) Q m(y) = 0

Let's consider only the x dependent part.

u Pn(x) Q''m(y) + v P''n(x) Qm(y) = Pn(x) [uQ''m(y)] + Qm(y) [vP''n(x)] = 0

This is possible only if the terms inside the square bracket are constants.

u Q''m(y) = -λ Qm(y) v P''n(x) = λPn(x)

where λ is a constant and λ = -ω^2vP''n(x) + ω^2Pn(x) = 0

This is a homogeneous differential equation, the solution of which is of the form Pn(x) = An cos(nx) + Bn sin(nx)

We apply the same method for Qm(y).uQ''m(y) + ω²Qm(y) = 0

where ω² = n² + λ and λ = -ω²Qm(y) = Cm sin(ωy) + Dm cos(ωy)

The general solution is of the form:

u(x, y) = [An cos(nx) + Bn sin(nx)][Cm sin(ωy) + Dm cos(ωy)]

where An, Bn, Cm, and Dm are constants.

u(x, y) = Σ[An cos(nx) + Bn sin(nx)][Cm sin(ωy) + Dm cos(ωy)]

The polynomial solution of the Laplace's equation within R= {(x, y): 1 < x < 2, 0 < y < ∏/2} is:

u(x, y) = Σ[An cos(nx)][Cm sin(ωy)]

We know that at x=1, u(x, y) = 0.

Therefore, An = 0 for all n.

So, the polynomial solution of Laplace's equation is,

u(x, y) = Σ[Bn sin(nx)][Cm sin(ωy)]

Thus, the polynomial solution of the Laplace's equation within R= {(x, y): 1 < x < 2, 0 < y < ∏/2} is u(x, y) = Σ[Bn sin(nx)][Cm sin(ωy)].

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Complete question is,

Find the polynomial solution of the Laplace's equation Ur + Uyy = 0 within R= {(x, y): 1 < x < 2, 0 < y < π/2} .

Answer:

I believe its A

Step-by-step explanation:

Found the answer and its A, good luck.

Answer:

x=3

y=6

Step-by-step explanation:

Step-by-step explanation:

answer

Are you clear your doubt with my answer?

Answer:

D

Step-by-step explanation:

Only way you apply Pythagoras is if the triangle is a right triangle. it won't work anyway else

The two triangles in this problem are similar, and the reason for their similarity is given as follows: AA.

Similar triangles are triangle that share these following two features:

The two right triangles in this problem are similar, as they have two common angle measures, given as follows:

As the angles have two common angle measures, the reason is given as follows:

AA.

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Using a 35-bag sample with a mean of 406.0 grams, a known standard deviation of 25.0 grams, and a level of significance of 0.05, you can perform a one-tailed Z-test to determine whether to reject or fail to reject the null hypothesis.

To test if the potato chip manufacturer's bag filling machine is working correctly at the 411.0-gram setting, we will state the hypotheses using the given terms.

Null Hypothesis (H0): The machine fills bags correctly, with a mean weight of 411.0 grams (µ = 411.0 grams)
Alternative Hypothesis (H1): The machine is underfilling bags, with a mean weight less than 411.0 grams (µ < 411.0 grams)

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Answer:

B=9*5=45m²

P=4+5+3=12m

H=9m

Now

S.A=P*H+2B=12*9+2*45=198m²

V=BH=45*9=405m³

here

B:base area of rectangle

P=perimeter of triangle

H=length of rectangle

S.A=surface area

V=Volume

The denominator degrees of freedom of the F statistic for testing the null hypothesis of homoskedasticity is equal to the number of total observations (N) minus the number of groups (k). So, it can be represented as (N - k).

The denominator degrees of freedom of the F statistic for testing the null hypothesis of homoskedasticity depend on the sample size and the number of groups being compared.

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Step-by-step explanation:

There are 52 cards     13 are diamonds   26 are black

   13 out of 52   times    26 out of 52 =

     13/52 X 26/52 = 1/8 = .125

Answer:

sin is .6, Cos is .8 and tan is .75

Step-by-step explanation:

Ez

Answer:

C. angle bisector

Step-by-step explanation:

Answer:

the third one

Step-by-step explanation:

Hope this helps and hope you have a happy and joyful day <3

Answer:

y = 4x - 2

y = -x + 3

Step-by-step explanation:

Answer:

A)  Canned and Packet

    Grain, Meat and Vegetables

B)  Let C = canned goods, let P = packet goods

     20C + 7P

     Let G = grain, let M = meat, let V = vegetables

     7G + 3M + 17V

C)  The number of grain and packet goods are the same in each expression, as this food group has been packaged in the same way.

The other variables in both expression are different.  The meat and vegetable food groups have been separated in the second expression, whereas they are part of the same group in the first expression.

To disprove the null hypothesis a researcher must develop a number that demonstrates the existence of a difference between two variables. this is called the alternative hypothesis.

Null hypothesis and Alternative hypothesis are two basic types of hypothesis that express the criteria of a research problem as a relationship between two or more variables.

Null hypothesis refers to the hypothesis which clarifies that there is no relationship between two variables.

An alternative hypothesis is the inverse of the null hypothesis which tells that there is a relationship between two variables.

Hence, demonstrating that there exist a difference between two variables is an alternative hypothesis.

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The party will have a total of 70 attendees, including members from both the dance club and the boxing club. Option (c)is right.

To determine the total number of people invited to the party, we need to add the number of members from the dance club and the number of members from the boxing club who are not also members of the dance club.

Number of members in the dance club = 50

Number of members in the boxing club = 30

Number of members from the boxing club who are also members of the dance club = 10

To find the number of members from the boxing club who are not members of the dance club, we subtract the number of overlapping members from the total number of members in the boxing club:

Number of members from the boxing club who are not members of the dance club = Number of members in the boxing club - Number of members from the boxing club who are also members of the dance club       = 30 - 10

             = 20

Now, to find the total number of people invited to the party, we add the number of members from the dance club to the number of members from the boxing club who are not members of the dance club:

Total number of people invited = Number of members in the dance club + Number of members from the boxing club who are not members of the dance club

          = 50 + 20

          = 70

Therefore, the correct answer is c. 70.

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The scale distance of given object is 5.4 cm wide, 7 cm tall, from missing corner its 2.2 cm wide and 1.4 cm tall.

Given that, a rectangle around Utah is about 270 miles wide and about 350 miles tall.

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).

Here scale factor = 1/50

Width of rectangle around Utah is 1/50 × 270

= 5.4 cm

Length of rectangle around Utah is 1/50 × 350

= 7 cm

Now, 110 miles = 1/50 × 110

= 2.2 cm

70 miles = 1/50 × 70

= 1.4 cm

Therefore, the scale distance of given object is 5.4 cm wide, 7 cm tall, from missing corner its 2.2 cm wide and 1.4 cm tall.

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Answer:

so the plants will grow more

Answer:

Multiply the different species in large number. Protect the plant species which are endangered. Improve the characteristics and quality of the plants. Produce quality and healthy plants on commercial base.

hope helpful <3