SOLVE ASAP POINT THEIF = BAN HAMMER!

The correct way to replace equation 1 into equation 2 using the substitution method is 2x+(-5x+10) = 7.

According to the question,

We have the following two equations:

Equation 1: y = -5x+10

Equation 2: 2x+y = 7

Now, we will substitute the value of y from equation 1 in equation 2.

So, we have the following expression:

2x+(-5x+10) = 7

(More to know: we can also solve this equation to find the value of x and then the obtained value of x can be put in equation 1 to find the value of y.)

Hence, the correct option is B.

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The balance in Larry's savings account at the end of these 8 years is 1698 dollars and 84 cents

The given parameters are

Principal, P = 1287

Rate, R= 4%

Time, T = 8

The balance in dollars and cents in Larry's savings account at the end of these 8 years

Balance = P * PRT

This gives

Balance = 1287 + 1287 * 4% * 8

Evaluate

Balance = 1698.84

Hence, the balance in Larry's savings account at the end of these 8 years is 1698 dollars and 84 cents

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Answer:

θ = 64.98310506 degrees (65 degrees rounded to unit)

Step-by-step explanation:

4.2 * tanθ = 9

4.2 * tanθ/ 4.2 = 9/4.2

tanθ = 2.142857

θ = arctan 2.142857

θ = 64.98310506

Step-by-step explanation:

using the SOH CAH TOA Rule,

tan 0=opp÷adj

tan 0=9÷4.2

tan 0=2.14

0=tan inverse of 2.14

There will be 90 grams of the element remaining after the 5.3 minute

From the question, we have the following parameters that can be used in our computation:

Mass of element = 430 grams

Rate of decay = 25.4% per minute

The above implies that the decay follows an exponential path

An exponential function that represents a decay function is represented as

A(n) = a * (1 -r)ⁿ

Where

A(n) = remaining amount at the nth minute

a = Initial amount = 430

r = rate of decay = 25.4%

So, we have

A(n) = 430 * (1 -25.4%)ⁿ

Evaluate the difference

A(n) = 430 * (0.746)ⁿ

When there are 90 grams, we have

430 * (0.746)ⁿ = 90

This gives

(0.746)ⁿ = 0.21

So, we have

n = log(0.21)/log(0.746)

Evaluate

n = 5.3

Hence, the number of minutes is 5.3

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By graphing or visualizing the parabolic shape, we can observe where the graph intersects the x-axis, which represents the solutions to the equation. In this case, the solutions are x = -3 and x = 1.

To solve the quadratic equation x^2 + 2x - 3 = 0 by graphing, we can plot the graph of the equation and find the x-values where the graph intersects the x-axis.

First, let's rearrange the equation to the standard form: x^2 + 2x - 3 = 0.

We can create a graph by plotting points for different values of x and then connecting them. However, I can describe the process and the key points on the graph.

1. Find the x-intercepts: These are the points where the graph intersects the x-axis. To find them, set y (the equation) equal to zero and solve for x:

  0 = x^2 + 2x - 3.

  This quadratic equation can be factored as (x + 3)(x - 1) = 0.

  Therefore, x = -3 or x = 1.

2. Plot the points: Plot the points (-3, 0) and (1, 0) on the graph. These are the x-intercepts.

3. Draw the graph: The graph of the equation x^2 + 2x - 3 = 0 is a parabola that opens upward. It will pass through the x-intercepts (-3, 0) and (1, 0).

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Answer:

Integrate from 3 to 1 and then you should get 4/3

So C.

Answer: A

Step-by-step explanation:

Using the 3D Pythagorean theorem, \(AB=\sqrt(6^2 + 4^2 + 1^2)=\sqrt(53)\)

Answer:

15 divided by 1/5 is equal to 1.

The irrational number is:

and the solution is:

So the solution is B)

Answer: A. According to the line of best fit, the object would have hit the ground 0.6 seconds later than the actual time the object hit the ground.

The statement first "According to the line of best fit, the object would have hit the ground 0.6 seconds later than the actual time the object hit the ground" is correct.

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

We have a line of best fit:

h = –21.962x + 114.655

As per the data given and line of best fit, we can say the object would have impacted the ground 0.6 seconds later than it did according to the line of best fit.

Thus, the statement first "According to the line of best fit, the object would have hit the ground 0.6 seconds later than the actual time the object hit the ground" is correct.

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The correct conclusion based on the given statements is:

If the time is between 8:00 a.m. and 6:00 p.m., then people may swim or dive into the pool.

A conditional statement, also known as an "if-then" statement, is a type of logical statement that consists of two parts: a condition (the "if" part) and a result (the "then" part).

It expresses a cause-and-effect relationship, stating that if a certain condition is true, then a specific result or action will follow.

"If the time is between 8:00 a.m. and 6:00 p.m., then people may swim or dive into the pool." This conclusion follows from the given information that if the time is within the specified range, the public swimming pool is open, and if the pool is open, people are allowed to swim or dive into it.

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The regression equation is y = 28.0 + 0.0510x.

The best predicted temperature at a time when the cricket chirps 3000 times in 1 minute, based on the regression equation is 181°F.

What is wrong with this predicted temperature: B. It is unrealistically high. The value 3000 is far outside of the range of observed values.

In this scenario, the chirps in 1 min would be plotted on the x-axis (x-coordinate) of the scatter plot while the temperature would be plotted on the y-axis (y-coordinate) of the scatter plot through the use of Microsoft Excel.

From the scatter plot (see attachment) which models the relationship between the chirps in 1 min and the temperature, a regression equation or an equation for the line of best fit is given by:

y = 28.0 + 0.0510x

When x = 3000, the temperature can be calculated as follows;

y = 28.0 + 0.0510(3000)

y = 181°F

In conclusion, a temperature of 181°F is unrealistically too high because a chirps of 3000 times in 1 min is an outlier.

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The outcomes that are contained in the events are

1 - P(X) = 4/5 and 1 - P(X) is the same as P(Not X)

From the question, we have the following parameters that can be used in our computation:

X = gray colours

Given that

gray colours = 3 and 10

We have

X = 3 and 10

Not X =1, 2, 4, 5, 6, 7, 8

The probability is then calculated as

P(X) = 2/10 = 1/5

For P(Not X), we have

P(Not X) = 1 - 1/5 = 4/5

In (a), we have

P(Not X) = 1 - 1/5 = 4/5

This means that

P(Not X) = 1 - P(X)

So, the solution is

1 - P(X) = 4/5

Using the above (a) and (b) as a guide, we have the following:

1 - P(X) is the same as P(Not X)

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The scale factor is: 1.8

because of :

\(\frac{36}{20}=1.8\\ \\\\\frac{25.2}{14}=1.8\)

The minimum and the maximum y-values represent a quadratic function.

The function in factored form is \(f(x) = (x + 2)(x- 1)(x - 3)\)

From the question, the graph crosses the x-axis at:

Next, we equate the above equations to 0

This gives:

\(x + 2 = 0\)

\(x - 1 = 0\)

\(x - 3 = 0\)

Multiply the above equations

\((x + 2)(x- 1)(x - 3) = 0 \times 0 \times 0\)

\((x + 2)(x- 1)(x - 3) = 0\)

Represent as a function

\(f(x) = (x + 2)(x- 1)(x - 3)\)

Hence, the required function is:

\(f(x) = (x + 2)(x- 1)(x - 3)\)

See attachment for the graph of \(f(x) = (x + 2)(x- 1)(x - 3)\)

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Answer:  Triangle 4

The red triangle (that's unlabled) is reflected over the vertical line x = 6 to produce triangle 4.

Answer:

No is not the solution to that system

Step-by-step explanation:

Answer:

y = 22

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the angles in the lower triangle and equate to 180°

∠ 1 + 19° + 41° = 180°

∠ 1 + 60° = 180° ( subtract 60° from both sides )

∠ 1 = 120°

∠ 1 and ∠ 2 are vertically opposite angles and are congruent , so

∠ 2 = 120°

Sum the angles in the upper triangle and equate to 180

y + 120 + 38 = 180

y + 158 = 180 ( subtract 158 from both sides )

y = 22

Answer:

Step-by-step explanation:

#1

No

See in first one the angle included is in between the two similar sides( corresponding to other triangle)

In second one the angle marked is not between the corresponding similar sides .

So not congruent

#2

Yes

Three angles of both are equal

Answer:

Option 1 and 3

Step-by-step explanation:

jdnfkfnkdksnd

Answer: 3rd answer is the correct answer.

Applying the Pythagorean theorem, we find that the length of the hypotenuse is equal to the square root of 2. In other words, the hypotenuse is root 2 times the length of either leg.

Answer:

x/3-10=8

x/3=18

x=48

Step-by-step explanation:

Answer:

No, it cannot have a unique solution. Because there are more variables than​ equations, there must be at least one free variable. If the linear system is consistent and there is at least one free​ variable, the solution set contains infinitely many solutions. If the linear system is​ inconsistent, there is no solution.

Step-by-step explanation:

the questionnaire options are incomplete, however the given option is correct

We mark this option as correct because in a linear system of equations there can be more than one solution, since the components of the equations, that is, the variables are multiple, leaving free variables which generates more alternative solutions, however when there is no consistency there will be no solution

To solve such problems we must know about the system of equations and underdetermined systems.

The system of equations doesn't have a unique solution.

When a system of equations has more variables than the equation, therefore, it has fewer rules to curb the variables, giving the variables more freedom to take up values from their respective domain(Usually it is a set of real numbers), in such a condition the system of equations has infinite solutions. This kind of system is known as an underdetermined system.

Hence, the system of equations doesn't have a unique solution.

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Answer:

Step-by-step explanation:

the answer is 20248.59

The amount of money in the account after 14 years would be $20257.

Compound interest is the interest on savings calculated on both the initial principal and the accumulated interest from previous periods. Mathematically -

\($A = P(1 + \frac{r}{n})^{nt}\)

where -

{A} = final amount

{P} = initial principal balance

{r} = interest rate

{n} = number of times interest applied per time period

{t} = number of time periods elapsed

Given is that a person places $8620 in an investment account earning an annual rate of 6.1% compounded continuously.

The given formula is -

V = P\(e^{rt}\)

From the question, we can write -

V = 8620 x \(e^{(0.061)(14)}\)

V = 8620 x \(e^{0.854}\)

V = 8620 x 2.35

V = 20257

Therefore, the amount of money in the account after 14 years would be $20257.

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Answer:

I need more context

Step-by-step explanation:

Answer:

-60 divided by -10

Answer:

answer on edmentum.

Step-by-step explanation:

Answer:

\(d =\frac{10}{3}t + 11\)

Step-by-step explanation:

Given

Represent time with t and distance with d

The time at which he sets his timer is 0.

So:

\((t_1,d_1) = (0,11)\)

After 3 seconds:

\((d_2,d_2) = (3,21)\)

Required

Determine the linear equation

First, we need to determine the slope (m):

\(m = \frac{d_2 - d_1}{t_2 - t_1}\)

Substitute in, values

\(m = \frac{21 - 11}{3 - 0}\)

\(m = \frac{10}{3}\)

Next, we determine the equation sing

\(d - d_1 = m(t - t_1)\)

Where

\((t_1,d_1) = (0,11)\)

\(m = \frac{10}{3}\)

\(d - 11 =\frac{10}{3}(t - 0)\)

\(d - 11 =\frac{10}{3}t - 0\)

\(d - 11 =\frac{10}{3}t\)

Add 11 to both sides

\(d - 11+11 =\frac{10}{3}t + 11\)

\(d =\frac{10}{3}t + 11\)

Hence, the linear equation is: \(d =\frac{10}{3}t + 11\)

The linear equation used to represent Carlos distance (d) from his starting position after t seconds is d = 3t + 12

A linear equation is given by:

y = mx + b;

where y, x are variables, m is the rate of change and b is the y intercept.

Let d represent Carlos distance from his starting position after t seconds.

Given that He starts a timer when he is  12 feet from his starting position, hence b = 12 feet. After 3 seconds, Carlos is 21 feet from his starting position. Therefore:

21 = 3m + 12

3m = 9

m = 3 ft per second

The linear equation used to represent Carlos distance (d) from his starting position after t seconds is d = 3t + 12

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Answer:

Option B,  two variables are measured and two groups are compared

Step-by-step explanation:

In a correlation study relationship between two variable is established.

The two variables represents two group.

For instance correlation study is conducted to determine the relationship between two variables X and Y

X and Y are variable

While X represents the group "number of cars passing through a lane"

Y represents the group "width of the road".

Hence, Option B is correct  

Answer:

a. 37

b. 420

c. 0.67

d. 4.6

Step-by-step explanation: