10. Find the solution set for the following
y=x²-3x-4
y-x=-4

Answers

Answer 1

Answer:

I have no idea tbh I need help with this too

Step-by-step explanation:

PLEASE HELP!!!!!!!!!!!!!!!

Answer 2
We want all equations in terms of “y.” The first equation (the quadratic) is already in terms of y, but the second equation (linear equation) is not in terms of y.

Solving second equation in terms of y:

Add x to both sides:

y=-4+x

Use the commutative property if addition to rearrange the Rayo to y=mx+b form:

y=x-4

So, we have a quadratic function and a linear equation.

Pay close attention to the equations below:

y=x²-3x-4

y=x-4

Both equations are equal to y, and because a system of equation solves for interception points on the two functions (the point where the two functions contain the same x and y-coordinates), the y-coordinates must be equal to each other. Therefore, the equations can be set equal to each other:

(x-4)=x²-3x-4

Factor the quadratic:

(x-4)=(x+1)(x-4)

Now, let’s solve for x:

Divide both sides by (x-4):

(x-4)/(x-4)=[(x+1)(x-4)]/(x-4)

Simplify:

1=(x+1)

Subtract 1 to both sides:

1-1=x

0=x

Apply the symmetric property:

x=0

Now that we know the two equations intercept at x=0, let’s plug 0 back into “y” to find its value. Since both equations are set equal, plug x=0 in for either one.

y=(0)-4

y=-4

So, a solution set is (0, -4) and (4, 0)


Related Questions

Squares $ABCD$ and $EFGH$ are equal in area. Vertices $B$, $E$, $C$, and $H$ lie on the same line. Diagonal $AC$ is extended to $J$, the midpoint of $GH$. What is the fraction of the two squares that is shaded

Answers

The fraction of the two squares that is shaded exists 5/16 area shaded.

What is the difference between diagonal and vertices?

A diagonal is a line segment connecting two opposite corners (vertexes) of a polygon, however it is not an edge (side). In other words, it connects any two non-adjacent polygonal vertices. Therefore, by connecting any two vertices in a polygon directly (i.e., without using a side), we create a diagonal.

A line segment known as a diagonal joins two polygonal vertexes (corners), although it is not an edge (side). To put it another way, it joins any two polygonal vertices that are not adjacent. Therefore, by connecting any two vertices in a polygon directly (i.e., without using a side), we create a diagonal.

The triangle on the bottom exists 1/2 × 1/2 × 1/2  of the original area of the lower square = 1/8 of the lower square

2 square =  [1/2 (square) + 1/8 (square) ] / 2 square  

= 5/16 area shaded

Therefore, the fraction of the two squares that is shaded exists 5/16 area shaded.

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The fraction of the two squares that is shaded exists 5/16 area shaded.

What is the difference between diagonal and vertices?

A diagonal is a line segment that joins two opposed polygonal corners (vertexes), although it is not an edge (side). In other words, it joins any two polygonal vertices that are not neighbouring. As a result, we can make a diagonal by directly joining any two vertices of a polygon (i.e., without utilising a side).

Although it is not an edge, a line segment known as a diagonal connects two polygonal vertexes (corners) (side). In other words, it connects any non-adjacent pair of polygonal vertices. As a result, we can make a diagonal by directly joining any two vertices of a polygon (i.e., without utilising a side).

The triangle on the bottom exists 1/2 × 1/2 × 1/2  of the original area of the lower square = 1/8 of the lower square

2 square =  [1/2 (square) + 1/8 (square) ] / 2 square  

= 5/16 area shaded

Therefore, the fraction of the two squares that is shaded exists 5/16 area shaded.

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1. Write two word expressions for each problem using different math vocabulary for each
expression

5d-10​

a/b+2

Answers

Step-by-step explanation:

for the first one

subtract 10 from 5 times a certain number

par teme
d
Bookwork code, 021
Cessss chance Review your workings and see if you can comes your make
Ria buys 19 textbooks, which cost £6.82 each,
By first rounding both numbers to 1 significant figure, estimate the total
amount of money Ria spends,
Give your answer in pounds (L),
Answer?

Answers

Therefore , the solution of the given problem of unitary method comes out to be total amount spent by Ria £129.58.

Define unitary method.

By multiplying the value about one unit by the quantity of units required, one can apply the unit technique to solve a problem. The unit procedure is used to separate a single entity integer from a given many, to put it simply. One pen, or 400 rupees, would be needed to purchase 40 needle. There might be a common way to verify this. only one nation. Anything has a unique feature. Algebra, grid logic, and its laminates and reverse are all identical terms used to describe mathematical analysis.

Here,

Given : Ria purchases 19 books for £6.82 apiece.

Thus,

Total cost of book = 19 * 6.82

=> 129.58

Therefore , the solution of the given problem of unitary method comes out to be total amount spent by Ria £129.58.

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Can you please help me with this problem

Answers

Answer: what’s the problem

Step-by-step explanation:

with what problem there isn't one posted

Lani is making a cake in the shape of a cone. to make the cake, she uses a cone shape mold. the mold has a diameter of 10 inches and a height of 12 inches. what is the volume of the cake? use 3.14 for pi. round to the nearest tenth, if necessary. responses 125.6 in³ 125.6 in³ 314 in³ 314 in³ 942 in³ 942 in³ 1256 in³

Answers

The volume of the cake Lani is making is 314 inches³.

Volume is defined as the amount of space a figure occupies. The formula for the volume of a cone is given by:

V = πr²h/3

where V = volume

r = radius of the base of the cone

h = height of the cone

π = 3.14

If the cone shape mold has a diameter of 10 inches, then its radius is equal to half of 10 which is 5 inches.

Plug in the values to the formula and solve for the volume.

V = πr²h/3

V = (3.14)(5 inches)²(12 inches)/3

V = 314 inches³

Hence, the volume of the cake is 314 inches³.

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A. 109.45
B. 115.14
C. 117.85
D. 154.13

Answers

Answer: C

Step-by-step explanation: i dont know srry

1. Combine the like like terms
14 + 8x + 2y -5x - 2

Answers

Answer :
12-3x+2y
Explanation:

Answer: 12 +3x +2y

Step-by-step explanation:

like terms:

14 and -2

8x and -5x

2y

combine and there you go. hope this helped.

(btw. the equation can vary in different forms, like 3x+2y+12 or 2y+3x+12. They are all correct.)

a snail traveled 3/4 mile. a radar gun clocked it at 3/10 of a mile per hour. how many hours will it take to reach 3/4 mile ?

Answers

Answer:12/30

Step-by-step explanation:

3/10 divided by 3/4 what is your answer? divide. 3/10 divided by 3/4 is 12/30. Simplify if you need to.

Answer-12/30

Just like the other person said follow his instructions and you should get the correct answer

A rectangle measures 1 3/4
inches by 3 3/4
inches. What is its area?
please help!

Answers

Answer:

6 and 9/16

Step-by-step explanation:

The area of a rectangle can be calculated by multiplying the width and length. So 1 3/4*3 3/4=7/4*15/4=105/16 or 6 and 9/16

PLEASE ANSWER ASAP!
Help please??????????????

Answers

Answer:

The answer is B. 1/8

Step-by-step explanation:

Half of the garden is planted by seeds. The quarter of that half will be equal to 1/8 for the whole garden.

A geologist visits 60 volcanoes in Alaska and California. What if 40% of the volcanoes were in California? How many volcanoes would the geologist have visited in California and how many in Alaska?

Answers

Answer : in California there are 24 volcanoes while in Alaska there are 36 volcanoes.

Step-by-step explanation:

Total number of volcanoes = 60.

40% of the volcanoes where in California.

i.e 100% - 40% = 60%.

60% of the volcanoes were in Alaska.

In California = 40/100 × 60 = 24 volcanoes.

In Alaska = 60/100 × 60 = 36 volcanoes.

Can some please help me with this questions

Answers

9514 1404 393

Answer:

y = 100,000(1 + 0.15)^t y = 1200(1 -0.06)^t y = 49.50(1 -0.07)^t y = 135(1 +0.05)^t value of $200 decreases (decays) by 25% each year

Step-by-step explanation:

It should be no stretch to understand that "increases" means the function is a growth function (+ sign), and "decreases" means the function is a decay function (- sign).

The multiplier in front (a) is the initial value — the value when t=0.

Find the value of x.

Answers

Answer: X = 121

Step-by-step explanation:

Because 180 degrees is a flat line, you subtract 59 from 180 to get the remaining angle values

What is the standard from of the equation for the line of y=1/4x+4. (Please help meeee)

Answers

Answer: - x + 4y = 16

1. Move your ax term to the other side by subtracting it on both sides.
y - 1/4x = 4

2. Now multiply everything by 4 to get rid of the fraction.
4y - x = 16

3. Reorder the terms into standard form
- x + 4y = 16

Hey I need some help,

If you were typing an 300 page essay and you finished 6 3/5 pages every hour, how long would it take you to complete a 300-page essay?

Answers

Good question at least 2 hours for me

Find the measure of the exterior angle with 24 degrees
(3x+6) and (2x+18)

Answers

The measure of the exterior angle of the triangle is 114 degrees.

How to find the angles of a triangle?

A triangle is a polygon with three sides. The sum of angles in a triangle is 180 degrees.

The measure of the exterior angle of the triangle can be found using exterior angle theorem.

Therefore, the exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two remote interior angles of the triangle.

Hence,

24 + 2x + 18 = 3x + 6

2x - 3x = 6 - 18 - 24

-x = -36

divide both sides of the equation by -1

x = 36

Hence,

exterior angle = 3x + 6 = 3(36) + 6 = 108 + 6 = 114 degrees

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The average sale price of new one-family houses in the United States for a recent year was . Find the range of values in which at least of the sale prices will lie if the standard deviation is . Round your to the nearest whole number

Answers

The price range for 75% of sales will be between $149,300 and $343,300.

What is meant by Chebyshev's Theorem?

The minimum percentage of observations falling within a given range of standard deviations from the mean is calculated using Chebyshev's Theorem. Numerous probability distributions can use this theorem. Also known as Chebyshev's Inequality, Chebyshev's Theorem.

Between $149,300 and $343,300 is where 75% of transactions are priced. Only 75% of the distribution's numbers must fall within two standard deviations for Chebyshev's theorem to hold, which makes it weaker than the proportion of numbers that are within two standard deviations of the mean.

Since the standard deviation given exists 48500, 2 standard deviations will be 2 × 48500 = 97000.

The lower limit will be 246300 - 97000 and the upper limit will be 246300 + 97000.

Lower limit = 246300 - 97000 = 149300

Upper limit = 246300 + 97000 = 343300

So 75% of the sales prices will be between $149,300 and $343,300

The complete question is:

The average sale price of new one-family houses in the United States for 2003 was $246,300. Using Chebyshev's theorem, find the range of values in which at least 75% of the sale prices will lie if the standard deviation is $48,500. Hint: You should memorize that when k is 2, it is 75% and when k is 3 it is 88.89%. Please answer with whole numbers: ex. 55,232 to 65,450 with commas

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Suppose x is 5 and y is 7. Choose the value of the following expression: (x != 7) && (x <= y) a. false b. true c. 0 d. null Suppose that x is an int variable. Which of the following expressions always evaluates to true? a. (x > 0) || ( x <= 0) c. (x > 0) && ( x <= 0) b. (x >= 0) 11 (x == 0) d. (x > 0) && (x == 0)

Answers

1)correct option is b) true

2)Which of the following expressions always evaluates to true?

 correct option is d)(x > 0) && (x == 0)

given that

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles. Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Many authors make a distinction between an expression and a formula, with the former designating a mathematical object and the latter a claim about such objects.

x = 5 and y = 7

Choose the value of the following expression: (x != 7) && (x <= y)

a. false

b. true

c. 0

d. null

(5! = 7) && (5<=7)

5 ≠ 7

correct option is b) true

Suppose that x is an int variable.

Which of the following expressions always evaluates to true?

a. (x > 0) || ( x <= 0)

b. (x > 0) && ( x <= 0)

c. (x >= 0) 11 (x == 0)

d. (x > 0) && (x == 0)

a) x = 1,2,3.... || x =0,-1,-2,-3......

b)x = 1,2,3.... && x = 0,-1,-2,-3,.....

c) x = 0,1,2,3..... 11 x = 0

d) x = 1,2,3.... && x = 0

correct option is d)(x > 0) && (x == 0)

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To get an A in her math class, Jada needs to have at least 90% of the total number of points possible. The table shows Jada’s results before the final test in the class.

1. ) Does Jada have 90% of the total possible points before the final test? Explain how you know.

2. ) Jada thinks that if she gets at least 92 out of 100 on the final test, she will get an A in the class. Do you agree? Explain

Answers

1) Jada does not have 90% of the total possible points before the final test.

2) If Jada gets at least 92 out of 100 on the final test, she will not get an A in the class.

From the following table of Jada’s results before the final test in the class the total number of points possible:

150 + 100 + 100 + 100 = 450

And Jada’s total points before the final test:

141 + 87 + 81 + 91 = 400

To check whether Jada have 90% of the total possible points before the final test, we find the percentgae of  Jada’s total points.

(400/450) × 100 = 88.89%

This means, Jada does not have 90% of the total possible points before the final test.

After final test, the total number of points possible:  450 + 100 = 550

And if she gets at least 92 out of 100 on the final test, her total points would be,

400 + 92 = 492    

And the percentgae of  Jada’s total points would be,

(492/550) × 100 = 89.45%

Given that Jada needs to have at least 90% of the total number of points possible.

so, she will notl get an A in the class.

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Contradiction Club holds a yearly proof competition, with special unique prizes for first, second, third, and fourth place. If 16 students enter the competition this year, how many ways can these prizes be distributed among the students

Answers

A proof competition is held annually by Contradiction Club, with special prizes awarded for first, second, third, and fourth place. If 16 students participate in the competition this year, the awards can be allocated among the students in 120 different ways.

How many ways can five different prizes be distributed among five people?120 ways, The first person has a choice from 5 prizes, the second has a choice from 4 prizes, and so on. The awards can be awarded in 5 different ways, or 5 × 4 × 3 × 2 × 1 = 120 different ways. When each student is qualified for each reward, the number of ways that 5 prizes can be distributed to 8 students is. [tex]5^(8)``8^(5)``8xx5!``5 xx 8!`[/tex] You may clear your doubts and achieve good exam results with the help of step-by-step solutions provided by specialists.For the first reward, there are 8 options. There are then 7 options for the second prize. Furthermore, there are 6 options for the third prize. As a result, there are 336 ways: 8 × 7 × 6.                                                             ∴ Total ways = 4× 3 ×2 = 24 ways = 4!

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Help answer part a and b please no links!!!

Answers

Answer:

a) 64.37m^2   b) 15.71 meters

Step-by-step explanation:

Area of circle = [tex]\pi r^2[/tex]

Rectangle: quadrilateral, parallelogram, all angles are 90 degrees

a) The area of the park not covered by the wading pool is equivalent to the area of the wading pool subtracted from the total area:

because the radius of the pool is 2.5

Area of wading pool = [tex]\pi 2.5^2=6.25\pi m^2[/tex]

The total area of the park is length x width because it is a rectangle

Area of park = [tex]14*6=84m^2[/tex]

Area of the park not covered by the wading pool = [tex]84-6.25\pi[/tex] ≈ 64.37m^2

b) The meters of fence needed to surround the circular pool is the circumference of the circle

Circumference: [tex]2.5*2\pi=5\pi[/tex] ≈ [tex]15.71[/tex]

1. |2x + z| + 2y


a = –2, b = –3, c = 2, x = 2.1, y = 3, and z = –4.2.

2. 4a – |3b + 2c|

Answers

Answer:

6 and -13

Step-by-step explanation:

Absolute Value

Absolute Values are magnitudes (only positive values) of any values (be it positive or negative.)

Example: |4.5| = 4.5, |-6.7| = 6.7

Solution

1. |2x + z| + 2y

= |2(2.1) + (-4.2)| + 2(3)

= |4.2 - 4.2| + 6

= 0 + 6

= 6

2. 4a - |3b + 2c|

= 4(-2) - |3(-3) + 2(2)|

= -8 - |-9 + 4|

= -8 - |-5|

= -8 - 5

= -13

Steve noticed that there were 72 lights on and 78 lights turned off.
what precent of the lights are on?

Answers

Answer:

49% of the lights are on!

is 120,110,105… a geometric sequence

Answers

Answer: No

Step-by-step explanation:

Look at the 3 numbers in the sequence,

Geometric sequence means the ratio between two consecutive numbers in the sequence is a constant (eg. 10, 5, 2.5 is a geometric sequence as the ratio is a constant at 1/2)

However, for the sequence listed above

Looking at 1st and 2nd term,

Ratio = 110/120 = 11/12

Looking at 2nd and 3rd term,

Ratio = 105/110 = 21/22 which is not the same as 11/12.

Hence, since the ratio is not the same, this sequence is not a geometric sequence.

ILL BRAINLIEST YOU AND GIVE YOU 10 extra points

Answers

Answer:

it's b

Step-by-step explanation:

it satifies Pythagoras theorem.

29² = 20²+21²

Marty and Ethan both wrote a function, but in different
ways.
Whose function has the larger slope?
Marty
y+3 = {(x +9)
Marty's with a slope of 2/3
Ethan's with a slope of 2/5
Marty's with a slope of 1/3
Ethan's with a slope of 1/5
Ethan
х
y
-4
9.2
-2
9.6
0
10
2
10.4

Answers

Answer:

Marty's with a slope of 1/3

Step-by-step explanation:

edge2021

Marty's function has the larger slope of 1/3.

What is meant by slope of a line ?

The slope of a line is computed as the ratio of the change in the y-axis to the change in the x-axis.

Marty's equation is given as,

y + 3 = 1/3(x + 9)

The equation for point slope form is,

y - y₁ = m(x - x₁)

Where, m is the slope of the line.

So, m = 1/3

Consider a function written by Ethan,

(-4, 9.2) and (-2, 9.6)

Slope of the line,

m = (y₂ - y₁)/(x₂ - x₁)

m = (9.6 - 9.2)/(-2 - -4)

m = 0.4/2 = 0.2

Hence,

Marty's function has the larger slope of 1/3.

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9) $36,500 at 2% compounded
semiannually for 2 years
A) $37,993.74 B) $37,982.05
C) $37,960.00 D) $37,974.60

Answers

Answer: I think it is B

Step-by-step explanation:

Sry if wrong pls don’t be mad

How do you solve a 45 45 90 and 30 60 90 triangle?

Answers

All 45-45-90-degree triangles have sides that are in a unique ratio. The two legs are exactly the same length.

This triangle is important because any time we're given one side of a 45-er triangle, we can figure out the other two sides.

If one leg is given, the hypotenuse is calculated by multiplying this length by the square root of 2.The hypotenuse is given, and the leg is calculated by dividing the hypotenuse by the square root of 2.

The 30-60-90 degree triangle is half of an equilateral triangle, cut straight down the middle along its altitude. This triangle has angles of 30°, 60°, and 90°.

The shortest leg is over from the 30-degree angle, the length of the hypotenuse is always double the length of the shortest leg,If the hypotenuse is given, the long leg is calculated by dividing the hypotenuse by 2.If the long leg is given, the hypotenuse is calculated by dividing this side by the square root of 3.

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formula of quadratic function and their graph​

Answers

Answer:

-b +/- √b^2-4ac

_____________

2a

Help me, please pleeeeeeeeeeeease

Answers

Answer:done

Step-by-step explanation:

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