3x-7y=11;x=-3,0,3
Solve for y

Answer:

• General equation of a line:

\( { \rm{y = mx + b}}\)

→ m is the slope, m = -5

→ b is the y-intercept, b = 4

• therefore:

\({ \tt{y = ( - 5)x + (4)}} \\ \\ { \boxed{ \boxed{ \rm{y = - 5x + 4}}}}\)

The slope intercept form is given by:

y = mx + b

m = slope and b = y-intercept

The equation of the line in slope-intercept form is y = -5x + 4.

The equation of a line is an algebraic form of representing the set of points, which together form a line in a coordinate system.

The slope intercept form is given by:

y = mx + b

m = slope and b = y-intercept

We have,

b = 4 and m = -5

The equation of the line in slope-intercept form is:

y = mx + b

substitute b = 4 and m = -5

y = -5x + 4

Thus the equation of the line in slope-intercept form is y = -5x + 4.

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Answer:

B(6, 5), C(1, -7)

Step-by-step explanation:

A(2, 5)

From A to B, there is translation x, (4, 0).

Add 4 to A's x-coordinate, and add 0 to A's y-coordinate.

B(2 + 4, 5 + 0) = B(6, 5)

From C to B there is the translation y, (5, 12).

Since we are going from B to C, we undo translation y.

The translation from B to C is (-5, -12).

C(6 - 5, 5 - 12) = C(1, -7)

No, the trapezoids are not similar because their corresponding angles do not have the same measures.

The given trapezoids ABCD and EFGH can be analyzed to determine if they are similar. Similarity in geometric figures implies that their corresponding angles are congruent, and their corresponding sides are proportional.

Let's examine the angles of the trapezoids:

In trapezoid ABCD:

Angle A = 137 degrees

Angle B = 90 degrees

Angle C = 90 degrees

Angle D = 43 degrees

In trapezoid EFGH:

Angle E = 136 degrees

Angle F = 90 degrees

Angle G = 90 degrees

Angle H = 44 degrees

By comparing the angles, we can observe that angles B and F are both right angles (90 degrees) in both trapezoids. Additionally, angles C and G are also right angles (90 degrees) in both trapezoids.

However, angles A and E, as well as angles D and H, do not have the same measures. Angle A measures 137 degrees in trapezoid ABCD, while angle E measures 136 degrees in trapezoid EFGH. Similarly, angle D measures 43 degrees in trapezoid ABCD, while angle H measures 44 degrees in trapezoid EFGH.

Since the corresponding angles in the two trapezoids do not have the same measures, we can conclude that trapezoids ABCD and EFGH are not similar.

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if the ratio of two sample variances exceeds the critical value of f at a defined confidence level, then the level of confidence also exceeds the critical level.

All tests that make use of the F-distribution are collectively referred to as "F Tests." The F-Test to Compare Two Variances is often what is meant when the term "F-Test" is used. However, a number of tests, including regression analysis, the Chow test, and the Scheffe test, use the f-statistic. If we are conducting an F-Test, we might employ a variety of technological tools. since doing an F-test manually while accounting for variations is a difficult and time-consuming operation.

if the ratio of two sample variances exceeds the critical value of f at a defined confidence level, then the level of confidence also exceeds the critical level.

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Answer:

  a) 7 m

  b) 22 cm

Step-by-step explanation:

Given plans at a scale of 1 : 50, you want (a) the actual length corresponding to a plan length of 14 cm, and (b) the plan length corresponding to an actual length of 11 m.

The actual lengths are wanted in meters, so we can rewrite the scale to translate between plan cm and actual m.

  plan : actual = 1 cm : 50 cm

  = 1 cm : 0.5 m

  = 2 cm : 1 m

Multiplying the scale by 7, we have ...

  2 cm : 1 m = 14 cm : 7 m

The actual length is 7 meters.

Multiplying the scale by 11, we have ...

  2 cm : 1 m = 22 cm : 11 m

The plan length is 22 cm.

Answer:

To reflect a graph, f(x) over the x-axis, you take -f(x).

So if f(x)=x^2, then -f(x) is -x^2.

Then g(x)=-x^2 is the reflection of your function f(x) over the x-axis.

Step-by-step explanation:

Answer:

I'm sorry if i'm wrong but i think Its 6.

Step-by-step explanation:

Answer:

42 I believe

Step-by-step explanation:

They way I think about it is if you think about one girl there are 6 other girls around her and so on. So 6 times 7 is 42

But it could be a trick question and it only be 7, because a circle doesn't have a definite start place like a line

Answer:

a ≈ 1.59

b ≈ 6.69

Step-by-step explanation:

Law of Sines: \(\frac{a}{sinA} =\frac{b}{sinB} =\frac{c}{sinC}\)

Step 1: Find c using Law of Sines

\(\frac{6}{sin58} =\frac{c}{sin13}\)

\(c = sin13(\frac{6}{sin58})\)

c = 1.59154

Step 2: Find a using Law of Sines

\(\frac{6}{sin58} =\frac{a}{sin109}\)

\(a = sin109(\frac{6}{sin58} )\)

a = 6.68961

Answer:

Neck

Step-by-step explanation:

Which one is closest to your head?

T-T

The ratio of the number of baskets scored by team A to the number of baskets by team B is 2: 5. Then the correct option is B.

In a basketball game, team B scored 5 baskets for every 2 that team A scored.

The utilization of two or more additional numbers that compares is known as the ratio.

Assume that Team A scored two baskets while Team B netted five.

The problem statement states that for every two baskets Team A scored, Team B scored five. This may be expressed as the ratio shown below:

Ratio = 2x : 5x

Ratio = 2: 5

Thus, the correct option is B.

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y = -1/4x + 34/4 is the equation of the line which is perpendicular to the line  y = -4x - 3

Given,

The line, y = -4x - 3

Point, (x₁, y₁) = (10, 6)

We have to find the equation of line that is perpendicular to the given line;

Here,

Slope of the line, m = -1/4 (Because the line is perpendicular)

We have to find the equation line by using the formula;

y - y₁ = m(x - x₁)

Here,

y - 6 = -1/4(x - 10)

y - 6 = -1/4x + 10/4

y = -1/4x + 10/4 + 6

y = -1/4x + 34/4

That is,

The equation of the line perpendicular to the given line is y = -1/4x + 34/4

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The amount of radioactive material that would remain by the 7th hour of decay is 0.12 grams.

An exponential function is in the form:

y = abˣ

where y,x are variables, a is the initial value and b is the multiplicative factor.

Let y represent the amount of substance remaining after x hours. Hence:

a = 9375, at x = 4, y = 15:

15 = 9375(b)⁴

b = 0.2

y = 9375(0.2)ˣ

For the 7th hour, x = 7:

y = 9375(0.2)⁷ = 0.12

The amount of radioactive material that would remain by the 7th hour of decay is 0.12 grams.

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Answer:

B

Step-by-step explanation:

-3 by 4 = -12

then you add the -5

Answer:

yes sir and thank u very good sir I am not sure how to get a new job

Here we have a dilation of scale factor 2.

We can see that bot figures we have the same slope, so we just have a dilation of scale factor K to go from figure A to figure B.

To find the value of K, notice that for some side length L in figure A, the correspondent length L' in figure B must be:

L' = K*L

Here if we use the left sides, we will get:

for figure A; L= 2

for figure B: L = 4

4 = K*2

4/2 = K

2 = K

So this is a dilation of scale factor k = 2.

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Answer:

70,000,000

8,000,000

900,000

2,000

10

Step-by-step explanation:

x= 6;

y= 4.

\((1)7x-8y=10\\\\ (2)x-8y=-26\\\)

\((1)7x-8y=10\\-\\ (2)x-8y=-26\\--------\\\\6x+0y=36\\ \\6x=36\)

\(\frac{6x}{6} =\frac{36}{6} \\ \\x=6\)

For this solution, we are going to use equation 2 to get the value of "y".

\((6)-8y=-26\\\\-8y=-26-6\\ \\-8y=-32\\ \\\frac{-8y}{-8} =\frac{-32}{-8} \\ \\y=4\)

If the answers are correct, both equations should return the same value in both sides of the equal (=) sign.

\(7(6)-8(4)=10\\ \\42-32=10\\ \\10=10\)

That's correct.

\((6)-8(4)=-26\\ \\6-32=-26\\ \\-26=-26\)

That's correct.

Hence, the answers are correct.

The correct graph of the following condition. {(x, y) : x - y6} is depicted in the graph attached.

A graph is a diagram showing the relation between variable quantities each measured along one of a pair of axes at right angles.

In this case, the correct graph of the following condition. {(x, y) : x - y6} is depicted in the graph attached.

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The range of the data is the difference between the highest and lowest values, which is 8 inches. Adding another plant with a height of 14 inches would not change the range, so the range would remain 8 inches.

Data is a collection of facts, figures, or information that can be processed and used to draw conclusions or make decisions. It can be stored in a variety of formats, including numerical, text, images, audio, and video. Data can be collected from a variety of sources, such as surveys, observations, experiments, or transactions. It can be used to inform decisions in areas such as business, health care, education, and research. Data can be analyzed to gain insight, develop strategies, identify trends, and make predictions. Data is a valuable resource and is increasingly important in today's digital age.

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Solving the proportion 22 miles/ 55 hours :: 12 miles/ k hours using cross products, value of h is 30.

Comparing two integers that each stand for a component of a whole results in a proportion. In essence, a percentage declares that two fractions are equal, regardless of the difference in amount. For instance, the ratio of half of 10 marbles to half of 50 marbles is 10. When determining if two ratios or fractions are equivalent, the proportion formula is utilized. By dividing the supplied values, we may determine the missing value. One way to express the percentage formula is as a: Whereas a and d are the extreme terms and b and c are the mean terms, b::c: d = a/b = c/d.

Given,

22 miles/ 55 hours = 12 miles/ k hours

Solving the proportion using cross products,

22 × h = 12 × 55

22 × h = 660

h = 660 ÷ 22

h = 30

Solving the proportion 22 miles/ 55 hours :: 12 miles/ k hours using cross products, value of h is 30.

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The equation that represents the situation is A = 3x + 15/2.

Two algebraic expressions having the same value and symbol '=' in between are called an equation.

Given:

A rectangle has length = x + 5/2 units.

And the width of 3 units.

Let the area of the rectangle is A.

So, A = length x width]

Substituting the value of length and width to the formula,

A = (x + 5/2) 3

A = 3x + 15/2

Simplifying,

2A = 6x + 15

Therefore, the equation is A = 3x + 15/2.

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Answer:

0.6781

Step-by-step explanation:

Answer:

edge 2021-22

Step-by-step explanation:

Answer: D

Step-by-step explanation:

I did it

The statement that correctly describes the function is:

The function is decreasing and nonlinear from x = 4 to x = 11.

Option D is the correct answer.

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

From the graph,

We see that,

The function is increasing and nonlinear from x = -7 to x = -4.

The function is constant and linear from x = -4 to x = 1.

The function is increasing and nonlinear from x = 1 to x = 4.

The function is decreasing and nonlinear from x = 4 to x = 11.

Thus,

The function is decreasing and nonlinear from x = 4 to x = 11.

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4) If a shoe of size 9.5 is added to the data, the way the median would change is that; The median will increase to 7

5) If a value of 50° is added, the way that the median will change is that; The Median decreased to 77°

6) If 101° is added, then ; Mean increases to 82°

4) Arranging the shoe sizes from least to greatest is;

5, 5.5, 6, 6.5, 6.5, 7, 7.5, 8, 8, 8.5

The median here will be; (7 + 6.5)/2 = 6.75

If a size of shoe of 9.5 is added, the sizes will be arranged as;

5, 5.5, 6, 6.5, 6.5, 7, 7.5, 8, 8, 8.5, 9.5

The median will increase to 7

5) Arranging the average high temperatures from least to greatest is;

57, 58, 61, 66, 71, 77, 82, 91, 95, 100, 102, 105

The median here will be; (77 + 82)/2 = 78.5

If we add 50° to the values, the median is now;

Median = 77

Median decreased to 77°

6) 57, 58, 61, 66, 71, 77, 82, 91, 95, 100, 102, 105

The mean is; (57 + 58 + 61 + 66 + 71 + 77 + 82 + 91 + 95 + 100 + 102 + 105)/12 = 80.42

If 101° is added, mean = (965 + 101)/13 = 82

Mean increases to 82°

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Answer:

Step-by-step explanation:

To create a frequency distribution with a first class of 13-19 and a class width of 7, we need to determine the boundaries for each class. The first class has a lower boundary of 13 and an upper boundary of 19. The upper boundary of each subsequent class is obtained by adding 7 to the previous upper boundary.

Using these boundaries, we can count how many values fall into each class:

Class Boundaries Tally Frequency

1             13-19  

2            20-26  

3            27-33  

4           34-40  

5           41-47  

6          48-54  

7          55-61  

8         62-68  

9         69-75  

To obtain the frequency, we count the number of values that fall into each class. The tally column is used to keep track of the values as they are counted.

I would say A but please wait for someone else to answer to make sure it's not wrong I would hate for you to get this wrong

Answer:

36 < (x - 2)² + (y + 3)² and 16 > (x - 4)² + y²

Step-by-step explanation:

This is because the shaded area is inside the first circle (centered at (4, 0) with a radius of 4) but outside the second circle (centered at (2, -3) with a radius of 6). The inequalities reflect these conditions by setting the inequality signs accordingly. The inequality with "<" for the first circle ensures that the shaded area is within the circle, and the inequality with ">" for the second circle ensures that the shaded area is outside the circle.

The point total possible for the given course is equal to 500.

What is a Percent?

In the question, it is given that you were 6 points shy of a B and the current total points you have is 394.

So, the total number of points you require for a B is calculated as,

\(394+6=400\)

So, the value of x is 400.

It is given that you need 80% of the course total for a B.

\(\implies p=\frac{80}{100}\\ \implies p=0.8\)

Here, we have to find the base number (b).

We have, x = 80% of b

\(\implies x=0.8 \times b\\\implies 400= 0.8 \times b\\\implies x=\frac{400}{0.8}\)

Simplifying, we get

\(x=500\)

Therefore, 500 points were possible in the course.

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