!Need help!

Solve using Substitution Method

2x + 5y = 7
x = 2 - 4y ​

Hello !

Answer :

Explanation :

\( \to \boxed{ ({x}^{a}) {}^{b} = {x}^{ab} } \)

\( \to \boxed{ {x}^{ \frac{1}{n} } {}^{} = \sqrt[n]{x} } \)

\( ({x}^{4} ) {}^{ - \frac{2}{3} } = {x}^{- \frac{2}{3} \times 4} \\ \boxed{= {x}^{ - \frac{8}{3} } } \\ \boxed{= \sqrt[3]{ {x}^{ - 8} }} \\ \boxed{ = \sqrt[3]{ ({x}^{ 4}) {}^{ - 2} }}\)

Have a nice day ;)

Answer: 24/100 more

Step-by-step explanation:

Answer:

kendall ate 24/100 more than parker

Answer:

That's what they started out with.

Step-by-step explanation:

In this case, the sponsors each had different starting amounts of money.

Answer:

The answer is "Option 2".

Step-by-step explanation:

Please find the complete question in the attached file.

When there is a mean value k in a set of data. Otherwise, we will assert with certainty that at least one of the values is k. They can't say anything at all about the maximum or even the minimum using knowledge only. Nevertheless, we know that certain numbers cannot be over and that all numbers cannot be below than mean. Mean also no value throughout the data set must be equal.

For the following equation, the x-intercept is (3/2, 0) and the y-intercept is (0, 6).

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

Here,

y+2=-4(x-2)

for x-intercept=(x,0)

2=-4(x-2)

2=-4x+8

4x=6

x=6/4=3/2

for y-intercept=(0,y)

y+2=-4(*-2)

y=6

The x-intercept is (3/2,0) and y-intercept is (0,6) for given equation.

To know more about equation,

https://brainly.com/question/2228446

#SPJ1

Answer:

\(y=\dfrac{3x}{2\sqrt 2}+\sqrt 2\)

Step-by-step explanation:

\(\text{Given that,}\\\\y = f(x)= \sqrt{2x^2 +3x +2 }\\\\\text{Plug x = 0 in the equation,}\\\\y = \sqrt{2 \cdot 0^2 +3 \cdot 0 +2} =\sqrt{2}\\ \\\text{So, the coordinate is~} \left(0,\sqrt 2 \right).\\\\\text{Now,}\\\\\text{Slope} = f'(x)\\\\~~~~~~~~=\dfrac{1}{2\sqrt{2x^2 +3x +2 }} \cdot \left(4x+3+0\right)\\\\\\~~~~~~~=\dfrac{4x+3}{2\sqrt{2x^2 +3x +2}}\\\\\\\)

       \(~~~~~=\dfrac{4\cdot 0 +3 }{2 \sqrt{ 2 \cdot 0^2 +3 \cdot 0 + 2}}~~~~~~~~~~~~~~;[\text{at x = 0}]\\\\\\~~~~~~=\dfrac{3}{2\sqrt 2}~~~~~~~~~~~~~~\)

\(\text{Equation of tangent line,}\\\\~~~~~~~y-y_1 = f'(x) (x-x_1)\\\\\\\implies y - \sqrt 2 = \dfrac 3{2 \sqrt 2} \left(x - 0\right)\\\\\\\implies y = \dfrac{3x}{2\sqrt 2}+\sqrt 2\\\)

Answer:

9x + 4

Step-by-step explanation:

Step 1: Write expression

4x - 2 + 5x + 6

Step 2: Combine like terms (x)

9x - 2 + 6

Step 3: Combine like terms (constants)

9x + 4

Answer:

9x + 4

Step-by-step explanation:

The implications for classroom practice relative to understanding implications for mathematics teaching .

What are the social cognitive theory's guiding principles?

The five following social cognition and behavior principles are discussed: (1) the influence of situation on conduct; (2) blindness to situational influences; (3) social perception and self-perception are constructive processes; (4) blindness to the constructed character of social and self-perception; and (5) self.

What does SCT mean by self-regulation?

When faced with externally imposed stimuli, self-regulation enables a person to maintain control over their behavior or response. A person's ability to self-regulate is strengthened through feedback, an externally imposed control that enables behavior modification.

Learn more about Self-regulation

brainly.com/question/14784828

#SPJ9

Solution :

a). According to the reports, 53.0% of the American households still have a landline phone service. Out of which 8 households are randomly called.

Here, the landline phone service is p = 53.0%

                                                           n = 8

Therefore, q = 1 - p

                     = 1 - 0.53

                     = 0.47

here we use the binomial distance because the probability of having the landline phone service is constant and the number of the trial are finite.

b). Let x be the number of household in the sample group having landline phone service.

  Probability that none of the household in the sample group have a landline service is

= P( x = 0)

\($=^8C_0 (0.53)^0(0.47)^8$\)

= 0.002 (using the binomial calculation )

c). Probability that exactly 5 of the household in the sample have a landline service is given by :

 P(x = 5)

\($=^8C_5 (0.53)^5(0.47)^3$\)

= 0.24

Answer:

.5

Step-by-step explanation:

30 miles a hour divide by 60 so your going half a mile a minute

Your speed in feet per minute is 2640 ft/min.

A unit rate means a rate for one of something.

Given that, Your rate of speed is 30 miles for every 1 hour

We know, 1 mile = 5280 feet

Therefore, 30 miles = 30x5280 = 158400 feet

That means, you are travelling 158400 feet for every hour

In an hour, there are 60 minutes,

Therefore, you are travelling 158400 feet in every 60 minutes.

In 60 minutes = 158400 feet

In 1 minute = 158400/60 = 2640 feet

That means you are travelling 2640 feet in every 1 minute.

Hence, your speed in feet per minute is 2640 ft/min.

For more references on unit rate, click;

https://brainly.com/question/11258929

#SPJ2

Answer:

C

Step-by-step explanation:

This is because C is the only answer that equals 2 2/3

Option C (2 2/3 = 1 + 1 +1/3 + 1/3) is the correct equation.

A) 2 + 2 + 3 = 7

B) 1 + 1 + 2 + 3 = 7

C) 1 + 1 + 1/3 + 1/3 = 2 2/3

D) 1 + 1 + 1/3 = 2 1/3

I attached a picture to make it simpler!

—————

Please remember to revise this and make it in your own words if you want! I hope this helps you. -Doodle

—————

The player made 38 foul shots.

Let's indicate the player's total number of field goals made by F and foul shots attempted by S. Based on the data in the problem, we may construct an equation system:

F + S = 55 (the player made a total of 55 baskets) (the player made a total of 55 baskets)

2F + S = 89 (the player scored a total of 89 points) (the player scored a total of 89 points)

The substitution approach can be used to find the values of F and S. We start by resolving the initial S equation:

S = 55 - F

Next, we change S in the second equation to the following expression:

2F + (55 - F) = 89

When we simplify and find F, we obtain:

F = 17

Hence, the player connected on 17 field goals. We may change this value of F into the first equation and then solve for S to determine the total number of foul shots:

17 + S = 55

S = 38

The player so scored 38 fouls.

To know more similar question visit:

https://brainly.com/question/11338475

#SPJ1

Answer: x=7

Step-by-step explanation:

To find the value of x, we can set a proportion since the problem states that "y varies directly with x".

\(\frac{13}{65} =\frac{x}{35}\)              

Here, we see that the x is the numerator and y is the denominator.

\(\frac{13}{65} =\frac{x}{35}\)              [cross multiply]

\(455=65x\)          [divide both sides by 65]

\(x=7\)

Now, we know that x=7. Logically, we know this is also correct because y=35 is less than y=65. This tells us that x has to be smaller than x=13.

Answer:

A. Graph attached

B. It's a function. One input has only one output, it passed the vertical line test.

Step-by-step explanation:

a₀ = 3  a₁ = 6 = 3 x 2¹   a₂ = 6 x 2 = 3 x 2²  ..... aₙ = 3 x 2ⁿ

answer graph attached

A list of ordered pairs may or may not represent a function.

(a) The ordered pair

Let x represent the number of folds, and y represent the thickness.

So, the first ordered pair is:

\(\mathbf{(x,y) = (0,3)}\)

When x increases by 1, the value of y gets doubled.

So, the six ordered pairs are:

\(\mathbf{(x,y) = \{(0,3),(1,6),(2,12),(3,24),(4,48),(5,96)\}}\)

(b) Is the ordered pair, a function

In (a), we have:

Every x value has a different corresponding y value.

This means that the ordered pair is a function.

Read more about functions and relations at:

https://brainly.com/question/6241820

Answer:

l dont know l am not studying it sorry

Answer:

hey what was the answer?

Step-by-step explanation:

I need help im going to failllll!!!!!!

Answer:

40 grams

Step-by-step explanation:

........................

Answer: 0.10x grams

Step-by-step explanation:

Answer:

33 candies in each bag but there's 1 bag with 34 candies

Answer:

33 and 34 in 1

Step-by-step explanation:

Answer:

a) 100π

Step-by-step explanation:

A = πr²

A = (10²)π

A = 100π

There is sufficient statistical evidence at 5% level of significance that there is   relationship between degree attainment and AGEKDBRN for women.

What is ANOVA model for men?

To ascertain whether there are any statistically significant differences between the means of three or more independent (unrelated) groups, the one-way analysis of variance (ANOVA) is used.

An n-way ANOVA allows a researcher to employ more than two independent variables (with n being the number of independent variables you have). For instance, any disparities in IQ scores can be investigated concurrently by country, gender, age group, ethnicity, etc.

Relationship between degree attainment and AGEKDBRN for women

To learn more about educational degree visit:https://brainly.com/question/14197325

#SPJ4

The component form of V is 0.650i + 0.375j

< 0.650 , 0.375 >

Horizontal Component

The direction of a vector in a two-dimensional coordinate system is determined by the angle it makes with the positive x-axis. Vector V is split into two components: v x and v y. V x is known as the Horizontal Component of the vector V. V y is known as the vertical component of the vector V.

In the i-direction is the horizontal component:

x = ||v|| cos(theta)

x = ¾ cos(30)

x = 0.6495190528

Vertical Component

Vertical component means the calculated vertical distance from the point of entry to the terminus of the lateral.

In the j-direction is the vertical component:

y = ||v|| sin(theta)

y = ¾ sin(30)

y = 0.375

0.650i + 0.375j

To learn more about Horizontal and Vertical Component visit:

brainly.com/question/11776718

#SPJ4

5t + 9

Step-by-step explanation:

"The product of five times the number of tires t" means that you need to multiply 5 and t. "Nine more" means you need to add 9 to the product of 5 and t.

Answer:

\(5 \: times \: the \: number \: of \: tires \: t \: = 5t. \\nine \: more \: than \: that \: is \: 9 + 5t.\)

hence the statement is represented by the expression 9 + 5t.

The number of sodas sold at the baseball game was 119, while the number of hot dogs sold was 72.

Let's assume the number of sodas sold as 'x' and the number of hot dogs sold as 'y'.

According to the problem, the total number of sodas and hot dogs sold is 191, so we can write the equation:

x + y = 191   ...(1)

The problem also states that the number of hot dogs sold was 47 less than the number of sodas sold. Mathematically, we can express this as:

y = x - 47   ...(2)

To find the values of x and y, we can solve the system of equations (1) and (2). Substituting equation (2) into equation (1), we have:

x + (x - 47) = 191

Simplifying the equation:

2x - 47 = 191

2x = 191 + 47

2x = 238

Dividing both sides by 2:

x = 238/2

x = 119

Substituting the value of x back into equation (2):

y = 119 - 47

y = 72

As a result, the total amount of sodas sold is 119, and the total amount of hot dogs sold is 72.

For more such questions on number, click on:

https://brainly.com/question/24644930

#SPJ8

Option A. c - 0 = b - a is the missing statement in Step 4 of the proof.

To determine the missing statement in Step 4 of the proof, let's examine the given table and image related to the relationship between the slopes of two parallel lines.

Step 1: Given the slopes of two parallel lines, m₁ and m₂.

Step 2: Assume two points on each line: (0, a) and (c, b).

Step 3: Calculate the slopes using the slope formula: m₁ = (b - a) / (c - 0) and m₂ = (d - a) / (0 - c).

Step 4: ??? (Missing Statement)

Step 5: Since the lines are parallel, the slopes are equal, so m₁ = m₂.

By analyzing the given information, we can identify the missing statement by comparing the calculated slopes:

From Step 3, we have:

m₁ = (b - a) / (c - 0)

m₂ = (d - a) / (0 - c)

Comparing the two slopes, we can see that (b - a) / (c - 0) = (d - a) / (0 - c).

To express this relationship, the missing statement in Step 4 should be:

A. c - 0 = b - a

For similar question on missing statement.

https://brainly.com/question/30113873

#SPJ8  

Answer:

b or c i think

Step-by-step explanation:

not for sure just a guess

The vertical component of the particle's location, when its horizontal component is 2, is:

y = -1.25

To find the vertical component of the particle's location when its horizontal component is 2, we need to first find the value of t when x = 2.

Given the equation:

x = 3sin(t)

Substitute x with 2:

2 = 3sin(t)

Now, isolate t by dividing both sides by 3:

sin(t) = 2/3

Take the inverse sine (arcsin) of both sides:

t = arcsin(2/3)

Now, plug the value of t back into the y equation:

y = t - 4cos(t) + 1

y = arcsin(2/3) - 4cos(arcsin(2/3)) + 1

Using a calculator to find the approximate value of y, we get:

y ≈ -1.25

Therefore, the vertical component of the particle's location when its horizontal component is 2 is:

y = -1.25

Read more about vertical components here:

https://brainly.com/question/25854506
#SPJ1

The characteristic of the researcher having direct control over at least one variable to both surveys and Observational .

The option that is not a characteristic of both surveys and observational studies is:

a. The researcher has direct control over at least one variable.

Surveys and observational studies have several characteristics in common, such as collecting data about a population and not proving cause and effect. However, the characteristic of the researcher having direct control over at least one variable is not applicable to both surveys and observational studies.

In a survey, the researcher collects data by asking questions to individuals or groups. They do not have direct control over the variables being studied but rather collect information based on participants' responses. The researcher's role is primarily in designing the survey, selecting the sample, and analyzing the data.

In an observational study, the researcher observes and records data without intervening or manipulating any variables. The researcher does not have control over the variables being observed; instead, they observe and document the existing conditions or behaviors.

the characteristic of the researcher having direct control over at least one variable is not applicable to both surveys and observational studies. Both methods involve data collection about a population and do not establish cause and effect relationships, but control over variables is not a shared characteristic.

To know more about Observational .

https://brainly.com/question/14354714

#SPJ11

Answer:

I am not sure if I understand the question correctly, but I believe it would be 1 hundred in each group.

Step-by-step explanation:

400 divided by 4 = 100