HELP THIS IS MY LAST QUESTION

Answer:

Step-by-step explanation:

ur mother

Select a random sample of 35 unmarried and 15 married subjects

A researcher who wishes to study the effects of a prenatal breastfeeding education program on the length of time African-American inner-city women breastfeed infants learns that 70% of women in the target population are unmarried.

To achieve stratified random sampling in a sample of 50 subjects, the researcher will:

Select a random sample of 35 unmarried and 15 married subjects.

hence, Select a random sample of 35 unmarried and 15 married subjects.

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Answer:

12 yd^2 (c)

Step-by-step explanation:

A=1/2bh

= 1/2 x 8 x 3

=12 yd^2

Hope it helps!!!

Answer: 12 yd^2

Step-by-step explanation:

Area=[tex](1/2) *base*height\\[/tex]

here

base= 8yd

height =3 yd

putting values

area=(1/2)*(8)*(3)

area=12 yd^2

The complete factor of the given expression is 2x(x-2y)(x+5)

Given the following expression shown below

2x^3 + 10x^2 − 4x^2y − 20xy

Factor out the GCF

2x^2(x+5)-4xy(x+5)

Group

(2x^2-4xy)(x +5)

2x(x-2y)(x+5)

Hence the complete factor of the given expression is 2x(x-2y)(x+5)

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Answer: 9

Step-by-step explanation:

 Given:

n², n = 3

  Plug-in:

(3)²

  Square 3:

3 * 3 = 9, so (3)² = 9

  Simplify:

9

The answers are D.)3, B.) Values were not subtracted from each side, and A.) The substitution property of equality

A straight line is a combination of endless points joined on both sides of the point.

We have;

UX=WZ

VW=XY

In line 3 the statement does not justify.

Because values were not subtracted from each side.

The reason should be substitution property of equality.

Thus, the answers are D.)3, B.) Values were not subtracted from each side, and A.) The substitution property of equality

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Answer:

I just got it right on the test

Step-by-step explanation:

The statistical goal of multiple regression analysis is to build a linear equation model that identifies the optimal weighted linear combination of independent variables in the study in order to optimally predict the reference variable.

Regression analysis is usually performed for one of two purposes. Predicting the value of the dependent variable of a person whose information about the explanatory variable is available, or estimating the effect of the explanatory variable on the dependent variable.

In multiple regression analysis, researchers can determine the strength of the relationship between the outcome (dependent variable) and multiple predictors, and the importance of each predictor in the relationship, often the effect of other predictors. It can be evaluated by statistically eliminating it.

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Answer:

5c-9h

Step-by-step explanation:

1) 7c-4h-2c-5h

2) 5c-4h-5h

3) 5c-9h

Answer:

Step-by-step explanation:

For there to be no solution, the graphs must never intersect.

An equation is formed of two equal expressions. The graphs that indicate that the equation has no solution are the first graph from the top row and the last graph from the second row.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The solution of a pair of equations is the point at which the graph of the two functions intersects each other. The number of times the two graphs intersect is the number of solutions to the pair of equations.

Since there are only two graphs where the graphs do not intersect.

Thus, the graphs that indicate that the equation has no solution are the first graph from the top row and the last graph from the second row.

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Answer:

B

Step-by-step explanation:

In order the angles <C and <F are shared, then <B and <E, then the side equaling 10. This together proves that this triangle is congruent because of AAS (angle,angle,side) a triangle congruency rule.

The solutions by suitable arrangement are:

a)4x2984x250

By suitable arrangement, we would arrange this as

(4 x 250) x 2984

= (1000 * 2984)

= 2,984,000

b. b) 495+114+205

By suitable arrangement we would have:

(495 + 205) + 114

= 814

c. The factors of 13965 are all of the numbers that can divide this number.

They are: 1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2793, 4655, and 13965

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The equation of the perpendicular line as required is; y = 2x -3.

Since the line in discuss is perpendicular to the given line whose slope is; -1/2. It therefore follows that the slope of the line to be determined is;

m = -1/(-1/2) = 2.

The equation of the required line can therefore be written as;

2 = (y-7)/(x-2)

2x -4 = y -7

Hence, y = 2x -3 is the equation of the line.

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The step you would take to evaluate an expression is to follow the order of operation

Expressions are mathematical statements that involve variables, terms, coefficients and mathematical operators

Different expressions require different ways of solving

However, the general guide is that the order of operation must be followed

The order of operation is represented by the acronym BEDMAS

Which means

Bracket

Exponent

Division

Multiplication

Addition

Subtraction

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Answer:

x = 3y + 4

Step-by-step explanation:

add 4 to both sides

simplify

Answer:

f(x)=x²-3x-10

Step-by-step explanation:

\begin{gathered}f(x) = x {}^{2} - 3x - 10 \\ to \: find \: x \: intercept \:o r \: zero \: substitute \: f(x) = 0\: \\ 0 = x {}^{2} - 3x - 10 \\ x {}^{2} - 3x - 10 = 0 \\ x {}^{2} + 2x - 5x - 10 = 0 \\ x(x + 2) - 5x - 10 = 0 \\ x(x + 2) - 5(x + 2) = 0 \\ (x + 2).(x - 5) = 0 \\ x + 2 = 0 \\ x - 5 = 0 \\ x = - 2 \\ x = 5\end{gathered}

f(x)=x

2

−3x−10

tofindxinterceptorzerosubstitutef(x)=0

0=x

2

−3x−10

x

2

−3x−10=0

x

2

+2x−5x−10=0

x(x+2)−5x−10=0

x(x+2)−5(x+2)=0

(x+2).(x−5)=0

x+2=0

x−5=0

x=−2

x=5

therefore the zeros of the equation are x₁=-2,x₂=5

Answer:

a₂₁ = 638

Step-by-step explanation:

substitute n = 21 into the explicit formula

a₂₁ = - 2 + 32(21 - 1) = - 2 + 32(20) = - 2 + 640 = 638

To plot more the points, we move up one and right two.

The ratios are given as:

(1, 0.5), (2, 1), and (5, 2.5)

Calculate the slope (m) using:

[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]

So, we have:

[tex]m = \frac{1 - 0.5}{2 - 1}[/tex]

Evaluate

[tex]m = \frac{0.5}{1}[/tex]

This gives

[tex]m = \frac{1}{2}[/tex]

The above means

Vertical : Horizontal = 1 : 2

This means a vertical movement of 1, followed by an horizontal movement of 1

Hence, to plot more the points, we move up one and right two.

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Complete question

Three equivalent ratios are shown on the graph. On a coordinate plane, points (1, 0.5), (2, 1), and (5, 2.5) are plotted. Starting on one of the plotted points, how can you plot more equivalent ratio points?

All the points which are at the distance of PQ from the center of the circle will be located on the circle.

A circle is a closed shape created by following a moving point on a plane while maintaining a constant distance from another point.

According to the given question, the circle named A has it's center at the point P and has a point Q on the circumference of the circle, so any point at the distance of PQ from the center of the circle will lie on the circumference of the circle.

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Answer:

Points S, T, and W

Hope this helps!

Step-by-step explanation:

The logarithmic form of  13² = 169 is ㏒₁₃ 169 = 2

Using the logarithmic rule , we have that

㏒ₙn = bⁿ

Given 13² = 169

It is important to  note that it can be written either in the logarithmic form or in the index form.

In this case, we have written in the index form as .

㏒₁₃ 169 = 2

Thus, the logarithmic form of  13² = 169 is ㏒₁₃ 169 = 2

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A disadvantage of debt consolidation is you can pay more money in the long term.

Debt consolidation is when a person takes out a new loan in order to pay off an existing loan. Debt consolidation increases the money you pay in the long term because you would still have to pay for the new debt incurred.

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The proportion shows that the time taken to do the same job by Mrs. Squirrel is 6 hours.

From the information given, the ratios are:

Turtle / Squirrel = Squirrel / Pigeon

3/x = x/(1/48)

x² = 1/16

x = 1/4

The number of days will be:

= 1/4 × 24

= 6 hours.

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Answer: Option 2 or B. AAS

Step-by-step explanation:  B. AAS

Trust me!

If you are working on Edge the answer is correct. The proof is down below. I hope someone finds this helpful.

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When two angles and the non-included side of one triangle are congruent to other triangle the by AAS congruency they are congruent. Therefore, option B is the correct answer.

Triangle congruence theorem or triangle congruence criteria help in proving if a triangle is congruent or not. The word congruent means exactly equal in shape and size no matter if we turn it, flip it or rotate it.

AAS, two angles and one side of a triangle are equal to two angles and one side of another triangle then they are congruent.

Therefore, option B is the correct answer.

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For the triangle ABC, if B or C is an obtuse angle, then a = b cos C + c cos B  according to the law of sines and the addition formula.

For a triangle ABC with angles ∠A, ∠B, and ∠C and with sides a, b, and c

Thus, we can write,

sinA/a = sinB/b = sinC/c

or

a/sinA = b/sinB = c/sinC

It is given that in a ΔABC,

The ∠B or ∠C is an obtuse angle.

So, ∠A = 180° - (B + C)

⇒ sin A = sin (180° - (B + C))

⇒ sin A = sin (B + C) (since we know that sin(180° - θ) = sinθ)

From the addition formula,

sin (B + C) = sin B cos C + sin C cos B

⇒ sin A = sin (B + C)

⇒ sin A = sin B cos C + sin C cos B

From the law of sines,

a/sinA = b/sinB = c/sinC = K

⇒ aK =sin A, bK = sin B, cK = sin C

On substituting,

⇒ sin A = sin B cos C + sin C cos B

⇒ aK = bK cos C + cK cos B

⇒ K(a) = K(b cos C + c cos B)

∴ a = b cos C + c cos B

Hence it is proved.

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Answer:

5/4 is the correct answer for this question

Graph fourth shows a system of equations with a solution at (2, -1) option fourth is correct.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

The question is incomplete.

The complete question is

Which graph shows a system of equations with a solution at (2,-1)?

The graph is in the picture, please refer to the attached picture.

As we can see in the graph there are two graphs of a function shown.

The first one is a parabola and the second one is a linear graph.

From the graph, the intersection point of the two groups is at (2, -1)

The intersection point is shown in graph fourth.

Thus, graph fourth shows a system of equations with a solution at (2, -1) option fourth is correct.

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Answer:

Graph 4

Step-by-step explanation:

Answer:

x-7y

Step-by-step explanation:

7x-9y-6x+2y

Combine like terms

7x -6x    -9y +2y

x       -7y

x-7y

Answer:

x -7y

Step-by-step explanation:

7x - 9y - 6x + 2y

Rearrange so like terms are together (these are terms that are similar such as 5b and 7b; 7 and 1)

7x - 6x - 9y + 2y

Group into brackets one-by-one and solve

(7x-6x) -9y + 2y

x -9y + 2y

x (-9y + 2y)

x -7y

Note that 1x, 1b, 1z etc are simply written as their variable eg x, b and z

The y-intercept = 127 and the slope = -10

The function is given as:

y = 127 - 10x

A linear function is represented as:

y = c + mx

Where

c = the y-intercept

m = slope

This means that:

y-intercept = 127

slope = -10

The y-intercept implies that, the initial amount of water is 127 ounces and the slope implies that the water leaks by 10 ounces per minute

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Complete question

The amount of water in a leaky bucket is given by the linear function y = 127 - 10x, where y is in ounces and x is in minutes. Find and interpret the slope and y-intercept of the linear equation.

Answer:

you would get about 6:20 of sleep

you would have gotten at least 6 hours of sleep and 20 mins

Step-by-step explanation: