Solve the system algebraically.

3x - 2y - 1 = 0
y = 5x + 4

What is the solution?


{(-9/7,-17/7)}


{(9/7,17/7)}


{(9/7,-17/7)}

Answers

Answer 1
3x -2(5x + 4) - 1 = 0

3x - 10x -9 = 0

3x - 10x = 9 

-7x = 9 x= 9/-7 x=-9/7

y = 5(-9/7) + 4 

y= -17/7

The answer is A

Related Questions

What is 3 divided by 363

Answers

Do you mean "363 divided by 3"?

If you meant "363 divided by 3", the answer would be: 363/3 = 121
If you meant "3 divided by 363", the answer would be: 3/363= 0.0083

***I, personally, would go for the first answer: 121***
3 divided by 363 is0.0082644628

Using synthetic division, how do you know if a given value is a root of a polynomial function?

Answers

When using synthetic division, if the answer has no remainder, it means it is a root of the polynomial function

Final answer:

A given value is a root of a polynomial function if, after using synthetic division, the remainder is zero. The remainder is found in the last position of the bottom row after performing synthetic division with the given value.

Explanation:

To determine if a given value is a root of a polynomial using synthetic division, follow these steps:

Write down the coefficient of the polynomial.

Place the value you want to test for being a root (let's call it 'c') to the left of the coefficients.

Bring down the leading coefficient to the bottom row.

Multiply 'c' by the value you just brought down and write the result underneath the second coefficient.

Add the second coefficient to the product you just wrote down and write the sum in the bottom row.

Repeat the multiplication and addition process until you reach the end of the row.

If the last number in the bottom row, which represents the remainder, is zero, then 'c' is a root of the polynomial. If the remainder is not zero, 'c' is not a root.

Understanding how to perform such operations is essential, especially when dealing with complex equilibrium problems where square roots, cube roots, or higher roots come into play. If unsure about carrying out these operations, particularly on a calculator, it is advisable to seek assistance from your instructor.

Someone please help!!

Answers

To determine what the value of X is simply use the appropriate trigonometric ratio, which in this case is cos.

Cos 21 = 3/X
X • cos 21 = 3
X = 3/(cos 21)
X = 3.123 about 3.1

The value of X to the nearest tenth would be about 3.1.

7,005.9 rounded to the nearest one

Answers

One in this case is the 5 before the decimal point, so if you're rounding you look to the right and its a 9 so you would have to round one number up.

Answer: 7, 006

Hope this helps :)
Please give brainliest
the answer is 7,006 to the nearest one as 0.9 is over 0.5 so u go up and the one unit is the 5 so u round it up to 6 

answer=7006 to nearest one

brainliest g and thanks plz:))))))))))))

What is 64,005,874 in word and expanded form and 30,679,100

Answers

64005874  
word form: sixty-four million, five thousand, eight hundred and seventy-four
expanded form: 60000000 + 4000000 + 5000 + 800 + 70 + 4
30679100
word: thirty million, six hundred seventy nine thousand, and one hundred
30000000 + 600000 + 70000 + 9000 + 100

hope this helps

Find the midpoint of diagonal BD. Figure ABCD is shown. A is at negative 3, 2. B is at 0, 6. C is at 6, 6. D is at 3, 2.

Answers

We just need the points B and D to solve this. B = (0,6) and D = (3,2).
Add the components together and average them.

midpoint(B,D) = ((0 + 3) / 2) , ((6 + 2) / 2)

= (1.5, 4)

Hopefully this is the right answer.

Find the product. (2p 3)3 · (3p 2)2

Answers

(2p^3)^3 * (3p^2)^2
= 2^3 p^9 * 3^2 p^4
= 8 p^9 * 9 p^4
= 72 p^13
The answer will be 72p^13

Help!

Which of the following is not a condition for a tessellation?

The shape or shapes must be repeated.
The shapes must not overlap.
There can be no gaps.
The shapes must be polygons.

Answers

Answer:

The shapes must be polygons.

Answer:

The shapes must be polygon

Step-by-step explanation:

did a test that was the answer, also if ur looking up answers for a test look them all up cuz im not big brain and a got a 72 thinking i was smart and knew how to do the questions

Kenji wants to divide 48.6 by 0.15. What is the first step that Kenji must complete?

Multiply the divisor and dividend by 10.

Multiply the divisor and dividend by 100.

Divide the divisor and dividend by 100.

Divide the divisor and dividend by 10.

Answers

The first step that Kenji must complete is option (B) multiply the divisor and dividend by 100 is the correct answer.

What is a division?

A division is a process of splitting a specific amount into equal parts. The number to be divided by another number is called the dividend. The number by which we divide another number (dividend) into equal parts is called the divisor.

For the given situation,

Kenji wants to divide 48.6 by 0.15.

[tex]\frac{48.6}{0.15}[/tex]

Step 1:

To perform division, the first step is to make the divisor and dividend without decimals.

So multiply the divisor and dividend by 100.

⇒ [tex]\frac{48.6}{0.15}=\frac{48.6(100)}{0.15(100)}[/tex]

⇒ [tex]\frac{4860}{15}[/tex]

Hence we can conclude that the first step that Kenji must complete is option (B) multiply the divisor and dividend by 100 is the correct answer.

Learn more about division here                

https://brainly.com/question/16831412

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The floor of a rectangular room will be tiled with square tiles that measure 3 inches on each side. The room is 109 inches long and 103 inches wide. How many tiles, including parts of tiles, are needed to complete the job?

Answers

109 *103 = 11227 square inches

tile = 3^2 = 9 square inches

11227/9 = 1247.44 tiles are needed.

 you can't buy a partial tile so you would need 1248 tiles

Answer:

We need 1248 tiles to complete the job.

Step-by-step explanation:

First we have to get the area of the  room and the area of each tile

Area = long x wide

Room Area = 109 x 103 = 11227 square inches

Tile area = 3 x 3 = 9 square inches

To get how many tiles we need, we must divide the room area by the tile area

Q=11227/9= 1247,44 ≅1248

find the greatest common factor of each set of numbers 24,30,42

Answers

the creates common factor for all of them is 6
The greatest common factor of 24,30,and 42 is 6
If you look at all their multiples the highest is 6

What is the relationship between the 6's in the number 6647

Answers

We can break down the number 6647 into:
6647=6000+600+40+7
The first 6 in the number is in the thousands place (6,000), and the second 6 is in the hundreds place (600). 
The first 6 is 10 times greater than the second one.

What is the surface area of a cube with a side length of 10 inches?

Answers

okay so one side is area is 10x10 or 100 there are 6 sides on a cube, so I can do 6x100 which is 600

:)
the answer is 600
10 * 10 = 100
100 * 6 = 600

Which line represents the line of reflection in this diagram?


f
g
h
i

Answers

The answer would be H, Because it is in the very center of both shapes which creates a line of symmetry which is used for the line of reflection


Hope this helped...

Answer:  The correct option is (C) h.

Step-by-step explanation:  We are given to select the correct line that represents the line of reflection in the given diagram.

We know that

A line of reflection is a line such that each point of the original figure and the image are equidistant from it.

In other words, we can say that the line of reflection is equidistant from the original figure and the image.

Now, from the figure, we can see that the line g is close on the figure on the left than that in the right. So, line g cannot be the line of reflection.

Line i is close the right figure on the upper half and it is close to the left figure on the lower half. So, line i also cannot be the line of reflection.

Line f cannot be the line of reflection because the shape of the figure is not same in both the sides of f.

The only line that is equidistant from both the figures is line h.

Thus, the line of reflection is line h.

Option (C) is CORRECT.

The calculated average of a data set best describes which of the following

A: Mean
B: Median
C:Mode
D:Mean Absolute Deviation

Answers

The calculated average of a data set best describes A: Mean.

What is twice 2 to the 30 power? Write in exponents. Explain your reasoning

Answers

Twice 2 to the 30-th power is
2*2³⁰ = 2¹*2³⁰ = 2³¹

For very large numbers, it is the usual practice to use scientific notation.
From the calculator, obtain
2³¹ = 2.1475 x 10⁹

Answer:  2.1475 x 10⁹

The table shows the price of bagels at two different stores: Store Price Bagels Bagel Stop $6.00 15 bagels Yummy Bagels $14.00 35 bagels' Yummy Bagels sells bagels at a lower unit price than Bagel Stop. True False

Answers

you divide the price by the amount of bagels. 6/15 is .4, and 14/35 is also .4 each bagel is 40 cents at both places so false
store price : 6 / 15 = 0.40 per bagel
yummy bagels : 14/35 = 0.40 per bagel

false...bagels at both stores have the same unit price

Mark wants to know how many families in his neighborhood plan to attend the neighborhood party. he puts all 80 of neighborhood addresses in a hat and draws a random sample of 20 addresses. He then asked those families if they plan to attend the party he finds that 20% of the family is planning to attend the party. He claims that 20% of the neighborhood families would be expected to attend the party is this a valid inference ???????explain why.

Answers

No this is not a valid reference because those were 20 random families, if he does another test the next twenty families 50% of them could attend the party. Too much chance to be valid.

Answer:  It is c

it is not a or b or d because they don't make since

also i took the flvs test

:)

heartbeat takes 0.8 seconds.how many seconds is this written as a fraction?

Answers

0.8 = 8/10

simplified = 4/5 seconds

hope this helps
0.8 written as a fraction is 4/5

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Hey there Duolingocom4! :)

To solve this, you need to first input the value given for the variables:
[tex]mx-y [/tex]
is 
[tex]1*5-2 [/tex]
Follow BEDMAS to simplify the expression.
[tex]5-2 [/tex]
[tex]=3[/tex]

The answer would be 3.

Hope this helps.
-Benjamin

Which scenario best matches the linear relationship expressed in the equation y = 32x + 80? (4 points)


a. Joseph has $80 in his bank account and spends $32 each day.
b. Joseph has $80 in his bank account and earns $32 each day.
c. Joseph had $32 in his bank account and deposited another $80.
d. Joseph has $32 in his bank account and earns $80 each day.

Answers

Each day the amount increases by $32 and at days=0 he had $80 so:

b. Joseph has $80 in his bank account and earns $32 each day.

Find the volume of the cylinder to the nearest tenth use 3.14

Answers

the answer is 3.14 r^2 h

the h is the height

if 1.4 is the radius then the answer is 36.9 if 6 is the radius then the answer is 158.3

Show work please. If you need to

Answers

dishwasher:

1200*0.15 = 180

1200-180 =$1,020

area:

middle section 6x6 = 36

left triangle 6*6*0.5 = 18

right triangle Area=base x height/2 = 6x6/2 = 18


36 +18 +18 =

72 in^2

Triangle ABC is a right triangle
The length of BC is 5 units.
The area of ABC is ____ square units.

Answers

Answer:

50 square units.

Step-by-step explanation:

Given in the picture is a right angled triangle

The coordinates of A are (-9,10) and B are (7,-2) and C is (4,-6)

Given that BC = 5 units

AB = distance between A and B

=distance between two points (-9,10) and (7,-2)

=[tex]\sqrt{(-9-7)^2+(10+2)^2} =\sqrt{256+144} \\=20[/tex]

Thus if we consider BC as base then AB is the height

Area of triangle = 1/2 bh = 1/2 (5)(20)

= 50 square units

The area of the triangle is: 50 square units.

What is the Area of a Triangle?

Area of a triangle = 1/2(base × height).

Given right triangle ABC:

Base = BC = 5 units

Height = AB = ?

Using the distance formula, [tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex] to find AB:

Let,

A(-9, 10) = (x1, y1)

B(7, -2) = (x2, y2)

Thus:

[tex]AB = \sqrt{(7 -(-9))^2 + (-2 - 10)^2}\\\\AB = 20 $ units[/tex]

Area of triangle = 1/2(5 × 20) = 50 square units.

Learn more about the area of triangle on:

https://brainly.com/question/21735282

The
6

students in Mrs. Flores' class were asked how many minutes it takes them to get to school in the morning. Here is what they answered:

7, 10, 16, 8, 5, 13

Find the mean and median travel times for these students.
If necessary, round your answers to the nearest tenth.

Answers

The median is nine (9). You add each number up, and then you divide by the amount of numbers you have. 
The mean is 9.83 according to my calculations. 

what is the circumference of a circle

Answers

the circumference is the distance around the outside of a circle.

 If you know the radius you can use the formula

 circumference = 2 x PI x radius

 

The table below shows the radius y, in inches, created by growing algae in x days: Time (x) (days) 5 10 15 20 Radius (y) (inches) 1 3 9 22 Part A: What is the most likely value of the correlation coefficient of the data in the table? Based on the correlation coefficient, describe the relationship between time and radius of the algae. [Choose the value of the correlation coefficient from 1, 0.94, 0.5, 0.02.] (4 points) Part B: What is the value of the slope of the graph of radius versus time between 5 and 10 days, and what does the slope represent? (3 points) Part C: Does the data in the table represent correlation or causation? Explain your answer. (3 points)

Answers

PART A:

The data is plotted in the graph below. The line best fit is drawn to show the trend of the data. Since the plots form a cluster that follows the line best fit and there are no outliers, the most likely coefficient is 0.94 which is a strong positive correlation.  

PART B:

The value of slope between x = 5 and x = 10 is
Slope = (3-1) ÷ (10-5) = 2/5

The slope represents the rate of change of the radius, which is 2/5 for every 5 days

PART C:

The data in the table represents correlation, that the algae grow longer as the days increase. It might not be necessary a causation because the growth of algae doesn't necessarily depend on the number of days.

Of 480 students in a high school, 180 were in ninth year. What percent of the students in the school were in the ninth year

Answers

180/480 =0.375

0.375 = 37.5%

so 37.5% of kids are in 9th grade

5y-x=10 solve for y

Answers

[tex]5y-x=10\\\\ 5y=10+x \ |:5 \ Both \ sides \\\\ y=\frac{10}{5}+\frac{x}{5}\\\\ y=2+\frac{x}{5}[/tex]

because
[tex]5y-x=5(2+\frac{x}{5})-x=5\cdot 2 +\frac{x}{\not5}\cdot 5 - x= 10+x-x=10[/tex]



From the equation 5y - x = 10; the solution for y is; y = (10 + x)/5

According to the question;

We are required to determine the solution in terms of y for the equation.

To solve for y; we must solve as follows;

5y - x = 10

5y = 10 +x

y = (10+x)/5

y = 2 + x/5

Read more on subject of formula:

https://brainly.com/question/23957741

Which expression can be used to determine 50% of 42?

42 - 2
42 / 2
42 / 10
42 - 10

Answers

Answer:

The answer is B

Step-by-step explanation:

Correct answer is 42 / 2.:)

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