plz help me with thi quston

Answer:

-7  -4  0 1 7

Step-by-step explanation:

x=0

x²-49=0

x²=49

x=±7

x²+3x-4= ² + 4 − − 4= ( + 4 ) − 1 ( + 4 )=(x+4)(x-1)=0

x+4=0

x=-4

x=1

Answer:

16 is the answer ....................

Answer:

9 i guess

Step-by-step explanation:

Answer:

the answer is 3since x is 2 so it becomes 5times 2 minus 7 equals to 3

Given:

A figure of an isosceles trapezoid with bases 18 and 24, and the vertical height is 4.

To find:

The legs of the isosceles trapezoid.

Solution:

Draw another perpendicular and name the vertices as shown in the below figure.

From the figure it is clear that the AEFD is a rectangle. So,

\(EF=AD=18\)

Since ABCD is an isosceles trapezoid, therefore in triangle ABE and DCF,

\(AB=DC\)               (Legs of isosceles trapezoid)

\(AE=DF\)                (Vertical height of isosceles trapezoid)

\(m\angle AEB=m\angle DFC\)             (Right angle)

\(\Delta ABE\cong \Delta DCF\)                (HL postulate)

\(BE=CF\)                (CPCTC)

Now,

\(BE+EF+FC=BC\)

\(2BE+18=24\)

\(2BE=24-18\)

\(2BE=6\)

\(BE=3\)

Using Pythagoras theorem in triangle ABE, we get

\(Hypotenuse^2=Perpendicular^2+Base^2\)

\((AB)^2=(AE)^2+(BE)^2\)

\((AB)^2=(4)^2+(3)^2\)

\((AB)^2=16+9\)

\((AB)^2=25\)

Taking square root on both sides, we get

\(AB=\pm \sqrt{25}\)

\(AB=\pm 5\)

Side length cannot be negative. So, \(AB=5\).

Therefore, the length of legs in the given isosceles trapezoid is 5 units.

The value x in the equation h(x) = 4x-4 is, x =1

Polynomial functions are functions of a single independent variable.

To solve for x

Since h(x) =0

substitute h(x) into equation  

h(x) = 4x - 4

0=4x - 4

Add 4 to both sides

4x = 4

Divide both side by 4

4x/4 = 4/4

x = 1

therefore, the value of X= 1

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Answer:

between 10 and 12

Step-by-step explanation:

Given the measure of angles:

m∠B = 70°

m∠C = 60°

m∠A = 50°

Following this information, since the side lengths are directly proportional to the angle measure they see:

Angle B is the largest angle. Therefore, side AC is the longest side of the triangle since it is opposite of the largest angle.

Angle C is the smallest angle, so the side AB is the shortest side.

Therefore, side BC must be between 10 and 12 inches.

Answer: If they're equal sized sections, I would expect it to land on green about 36 times.

Step-by-step explanation:

110/3=36.666667

The diameter of each round pizza should be approximately d ≈ 2r ≈ 39.6

Rounding to the nearest tenth, we get a diameter of 39.6 cm.

The rectangular pizza has an area of:

35 cm x 70 cm = 2450 \(cm^2\)

Dividing the area by 24 gives us the area of each square piece:

\(2450 cm^2 / 24 = 102.08 cm^2\)

For the round pizzas, each slice is a sector of the circle, and the area of each sector is given by:

\(A = (θ/360)\pi r^2\)

where θ is the angle of the sector in degrees, and r is the radius (half the diameter) of the circle.

Since each round pizza is cut into 12 slices, each slice covers an angle of:

θ = 360/12 = 30 degrees

We want the area of each slice to be equal to the area of each square piece from the rectangular pizza, which is 102.08 \(cm^2\). Therefore, we can set up the equation:

\((30/360)\pi r^2 = 102.08\)

Simplifying, we get:

\(\pi r^2/12 = 102.08\)

\(\pi r^2 = 1224.96\)

\(r^2\) ≈ 391.2

r ≈ 19.8

Therefore, the diameter of each round pizza should be approximately:

d ≈ 2r ≈ 39.6

Rounding to the nearest tenth, we get a diameter of 39.6 cm.

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Research on aging uses a **longitudinal** design.

A longitudinal design is a research design in which the same participants are studied over time. This is in contrast to a **cross-sectional** design, in which different participants are studied at different times.

Because age cannot be manipulated as an independent variable, research on aging must use a longitudinal design. This allows researchers to track changes in participants' behavior, cognition, and other factors as they age.

Longitudinal studies can be expensive and time-consuming to conduct, but they can provide valuable insights into the aging process. For example, longitudinal studies have shown that cognitive decline is not inevitable with age, and that certain lifestyle factors, such as exercise and social engagement, can help to protect against cognitive decline.

Here are some examples of longitudinal studies on aging:

* The Baltimore Longitudinal Study of Aging, which has been following a group of adults for over 70 years.

* The Framingham Heart Study, which has been following a group of adults for over 70 years.

* The Study of Adult Development and Aging, which has been following a group of adults for over 80 years.

These studies have provided valuable insights into the aging process, and they continue to be an important source of information for researchers and policymakers.

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Answer:

at the picture or the a b c d ?

Answer:

its a

Step-by-step explanation:

Segment RT bisects ∠QRS in ΔQRS and therefore, the angles ∠1 and ∠2

formed are equal.

The valid reason for the statement ∠1 ≅ ∠2 is; A. Definition of Angle Bisector.

Reasons:

The information on the triangle ΔQRS are;

The angle bisector of ∠QRS = RT

Therefore;

∠QRT = ∠1, ∠SRT = ∠2 Given in the diagram

∠QRS = ∠QRT + ∠SRT by angle addition property

∠QRT ≅ ∠SRT  by definition of angle bisector

∠1 ≅ ∠2 by definition of ∠QRT and ∠SRT

By substituting ∠QRT with ∠1 and ∠SRT with ∠2, we have;

∠1 ≅ ∠2 by definition of angle bisector

The valid reason for the statement is therefore; A. Definition of angle

bisector.

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Answer:

The answer is -4

Step-by-step explanation:

Hope this helps! :)

First way :

1.9×(1/4)

1.9×0.25

0.475

Second way :

1.9×(1/4)

1.9/4

0.475

PLEASE GIVE BRAINLIEST

Answer:

0.425

Step-by-step explanation:

1.9*0.25=0.425

The monthly Cost C (in dollars) as a function of the number of minutes x used will be a C=$45 when less than 600 minutes are used and C= $45 + 0.1(x -600)  when more than 600 minutes are used.

It is given that, The charge of the plan is $45, so our function of Cost C must include this price. Now, the plan includes 600 minutes of usage for free, So our definition of function should include this information as well.

Now, There will be 2 cases, Case 1 : when the minutes of usage is less than or equal to 600 and Case 2 : when the minutes of usage is greater than 600.

For the first case, the equation will be a simple constant function as no other additional cost is required :

⇒ C = 45

For the 2nd case, there is a 10 cent charge for every extra minute of usage + the plan charge of $45 and to find the number of extra minutes of usage we simply subtract 600 from 'x' (total minutes used). Therefore, our equation will be :

⇒C = 45 + 0.1 (x-600)

In conclusion, we can write our equation with proper format like this :

\(C = \left \{ {{45}\atop {45 + 0.1(x-600)}} \right.\)

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Answer:

Taylor will earn $27.60 after the raise.

Step-by-step explanation:

If you take $24.00 and multiply it by $1.15, your answer should be $27.60. Therefore, this is the answer to your question.

Hopefully this helps, did the best I could!

In the case of coinciding lines with the same y-intercept, the number of solutions to the equation system is unlimited.

An equation is a mathematical statement that contains the symbol "equal to" between two expressions with identical values. as in 3x + 5 = 15, for example.

There are many different types of equations, such as linear, quadratic, cubic, etc.

Equations are statements in mathematics that have two algebraic expressions on either side of the equals (=) sign.

It shows that the expressions printed on the left and right sides have an equal relationship. In any mathematical equation, we have LHS = RHS (left hand side = right hand side).

Equations can be solved to find the value of an unknown variable that represents an unknown quantity. If there is no "equal to" symbol in the sentence, it is not an equation.

Hence, In the case of coinciding lines with the same y-intercept, the number of solutions to the equation system is unlimited.

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Complete question-

Using the equation y = 2/3 x - 5, describe how to create a system of linear equations with an infinite number of solutions.

Answer:

349.6 - 112.8 = 236.8

Step-by-step explanation:

Answer:

238

Step-by-step explanation:

Let's calculate the products and check if they indeed have the same value:

Product of 32 and 46:

32 * 46 = 1,472

Reverse the digits of 23 and 64:

23 * 64 = 1,472

As you mentioned, the products are the same. This phenomenon is not unique to this particular pair of numbers. In fact, it occurs with any pair of two-digit numbers whose digits, when reversed, are the same as the product of the original numbers.

To find two other pairs of two-digit numbers that have this property, we can explore a few examples:

Product of 13 and 62:

13 * 62 = 806

Reversed digits: 31 * 26 = 806

Product of 17 and 83:

17 * 83 = 1,411

Reversed digits: 71 * 38 = 1,411

As for determining if a given pair of two-digit numbers will have this property without actually performing the multiplication, there is a simple rule. For any pair of two-digit numbers (AB and CD), if the sum of A and D equals the sum of B and C, then the products of the original and reversed digits will be the same.

For example, let's consider the pair 25 and 79:

A = 2, B = 5, C = 7, D = 9

The sum of A and D is 2 + 9 = 11, and the sum of B and C is 5 + 7 = 12. Since the sums are not equal (11 ≠ 12), we can determine that the products of the original and reversed digits will not be the same for this pair.

Therefore, by checking the sums of the digits in the two-digit numbers, we can determine whether they will have the property of the products being the same when digits are reversed.

Four conditions of congruency are: SSS, ASA, SAS, RHS

Using SSS congruency,

Side: PS = PQ (by the rule, all sides of rhombus are equal)

Side: ST = TQ (by the rule, diagonals bisect each other)

Side: PT = PT (common)

Therefore, Area(PQT) = Area(PST) by SSS congruency

Using ASA congruency,

Angle: ∠TPS = ∠TPQ (diagonals bisect the angles)

Side: PS = PQ (by the rule, all sides of rhombus are equal)

Angle: ∠PST = ∠PQT (opposite angles are equal, and diagonals bisect the angles)

Therefore, Area(PQT) = Area(PST) by ASA congruency

Using SAS congruency,

Side: ST = TQ (by the rule, diagonals bisect each other)

Angle: ∠PTS = ∠PTQ (by the rule, diagonals bisect each other at 90°)

Side: PT = PT (common)

Therefore, Area(PQT) = Area(PST) by SAS congruency.

Using RHS congruency,

Right angle: ∠PTS = ∠PTQ (diagonals bisect each other at 90°)

Hypotenuse: PS = PQ (all sides of rhombus are equal)

Corresponding Side: ST = TQ (by the rule, diagonals bisect each other)

Therefore, Area(PQT) = Area(PST) by RHS congruency

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Two rational numbers between −7/2 and 4/3 are -20/6 and 7/6.

The two given rational numbers are −7/2 and 4/3.

A rational number is a number that is of the form p/q where p and q are integers and q is not equal to 0.

Now, two rational numbers between −7/2 and 4/3 can be found as follows:

Make denominators the same by taking the LCM of denominators.

LCM of 2 and 3 is 6.

Change denominators of both the rational numbers to 6 by multiplying the same number by numerator and denominator.

So, the rational numbers become −21/6 and 8/6.

Now, two rational numbers between −21/6 and 8/6 are -20/6 and 7/6.

Therefore, two rational numbers between −7/2 and 4/3 are -20/6 and 7/6.

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Answer:

3,072m

Step-by-step explanation:

32 × 12× 8= 3,072 (This is only you are multiplying them all)

If you are trying to find the area then its: 384m

The area represented by g(x) is a triangular region with base 1 and height (7/3) x, where x is the variable along the horizontal axis. The resulting shape will be a right triangle with vertices at (0,0), (1,0), and (0, (7/3) x).

It seems like you are asking to sketch the area represented by the function g(x) given as the integral of x with respect to t from 1 to 2. However, there seems to be a typo in your question. I will assume that you meant g(x) = ∫[1 to x] t^2 dt. Please follow these steps to sketch the area represented by g(x):

1. Draw the function y = t^2 on the coordinate plane (x-axis: t, y-axis: t^2).

To sketch the area represented by g(x) = x t2 dt 1, we first need to evaluate the definite integral. Integrating x t2 with respect to t gives us (1/3) x t3 + C, where C is the constant of integration. Evaluating this expression from t=1 to t=2 gives us (1/3) x (2^3 - 1^3) = (7/3) x.

2. Choose an arbitrary x-value between 1 and 2 (e.g., x = 1.5).
3. Draw a vertical line from the x-axis to the curve of y = t^2 at x = 1.5. This line represents the upper limit of the integral.
4. Draw another horizontal axis from the x-axis to the curve of y = t^2 at x = 1. This line represents the lower limit of the integral.
5. The area enclosed by the curve y = t^2, the x-axis, and the vertical lines at x = 1 and x = 1.5 represents the area for the given value of x.

In conclusion, the area represented by g(x) = ∫[1 to x] t^2 dt can be sketched by plotting the curve y = t^2, choosing a specific x-value between 1 and 2, and then finding the enclosed area between the curve, x-axis, and the vertical lines at x = 1 and x = chosen x-value.

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The key underlying assumption of the single index model is that the return of a security can be explained by the return of a broad market index.

This assumption forms the basis of the single index model, also known as the market model or the capital asset pricing model (CAPM).

In this model, the return of a security is expressed as a function of the return of the market index. The single index model assumes that the relationship between the returns of a security and the market index is linear.

It suggests that the risk and return of a security can be explained by its exposure to systematic risk, which is represented by the market index.

The single index model assumes that the return of a security can be decomposed into two components: systematic risk and idiosyncratic risk.

Systematic risk refers to the risk that cannot be diversified away, as it affects the entire market. Idiosyncratic risk, on the other hand, is the risk that is specific to a particular security and can be diversified away by holding a well-diversified portfolio.

The single index model assumes that the systematic risk is the only risk that investors should be compensated for, as idiosyncratic risk can be eliminated through diversification.

It suggests that the expected return of a security is determined by its beta, which measures its sensitivity to the market index. A security with a higher beta is expected to have a higher return, as it is more sensitive to market movements.

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Answer:

18

Step-by-step explanation:

direct variation = y/x

54 / 3 = 18

Answer:

approx. 33 large buttons

Step-by-step explanation:

30% of 100= 33.3, round down because the number in the tenth place is less than 5.

The approximate change formula for a function z=f(x, y) at the point (a, b) in terms of differentials is given by Δz ≈ ∂z/∂x |(a, b) dx + ∂z/∂y |(a, b) dy

Function is equal to,

z=f(x, y)

In terms of differential the approximate change formula at (a, b) is,

Δz ≈ ∂z/∂x |(a, b) dx + ∂z/∂y |(a ,b) dy

where,

Δz is the approximate change in z

∂z/∂x is the partial derivative of z with respect to x

∂z/∂y is the partial derivative of z with respect to y

dx is the small change in x

dy is the small change in y

The vertical bars indicate that the partial derivatives are evaluated at the point (a, b).

This formula represents the total differential of z at the point (a, b).

Which is the linear approximation of the change in z due to small changes in x and y.

It is based on the assumption,

That the change in z is approximately proportional to the changes in x and y and is valid for small changes in x and y.

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Answer:

14

Step-by-step explanation:

First divide 24 and 6 to find how much 6's there are in 24.

24/6=4

Now, we take that number and multiply it by 3.5 to find how long it will take the group to walk 24km.

3.5*4=14.

It will take the group 14 hours to walk 24 km.

Hope this helps!

If not, I am sorry.