Mathematics High School

Solve for the values of x:

(2x-1)(x+4) = 0

Answers

Answer 1

Step-by-step explanation:

x = -4, 1/2 is the value of x

Answer 2

The values of x that satisfy the equation (2x - 1)(x + 4) = 0 are

x = 1/2 and x = -4.

Here, we have,

To solve for the values of x in the equation (2x - 1)(x + 4) = 0, we can use the zero-product property, which states that if the product of two factors is equal to zero, then at least one of the factors must be zero.

So, we set each factor equal to zero and solve for x:

2x - 1 = 0

Adding 1 to both sides:

2x = 1

Dividing both sides by 2:

x = 1/2

x + 4 = 0

Subtracting 4 from both sides:

x = -4

Therefore, the values of x that satisfy the equation (2x - 1)(x + 4) = 0 are x = 1/2 and x = -4.

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Related Questions

What is 0.23 divided by 0.7?

Answers

0.328571428571

ly guys <3

easyyy, put it into a calculator and u get 0.32857

round 4.30132 to the nearest thousandth

Answers

The answer would be 4.301

Answer:

4.301

Step-by-step explanation:

I need help with something maybe if I can send a picture of it it will be easier

Answers

Answer:

sure send it and I will do my best to help you..

What does the - 8 do in the function k(x)?

k(x) = x^2 - 8

Answers

Answer:

the negative 8 is the y-intercept of the equation. This means that this is y value of where 0 is on the x-axis. The point for the y-intercept is (0,8)

Complete the following problems.
Amy has $50 in her lunch account. Amy spends $3 a day for lunch. Amy's mother receives a notification when Amy's
account balance reaches $5 or lower. How many lunches can Amy purchase until her mother receives a notification? And what is the equation in slope intercept form

Answers

Answer:

Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.

Step-by-step explanation:

The balance Amy has in her lunch account is a function of the number of lunches she has consumed.

The initial balance is $50 and it decreases by $3 for every lunch Amy has. Thus, the function that models the balance in her lunch account is:

[tex]B(x)=50-3x[/tex]

Where x is the number of lunches.

Her mother receives a notification when the balance goes at $5 or lower, thus the condition that triggers the notification is:

[tex]B(x) \le 5[/tex]

Or, equivalently:

[tex]50-3x\le 5[/tex]

Subtracting 50:

[tex]-3x\le 5-50[/tex]

[tex]-3x\le -45[/tex]

Multiplying by -1 (and flipping the sign):

[tex]3x\ge 45[/tex]

Solving:

[tex]x\ge45/3[/tex]

[tex]x\ge 15[/tex]

Answer:

Fractions with variablies are proportional anyway, and any number is proportional as long as it has the same ratio.

Step-by-step explanation:

Andy drove 840 miles in 12 hours. How far could he drive in 1 hour?

Answers

Answer:

Step-by-step explanation:

Divide 840 by 12 and you get 70 miles.

Hey, he's speeding! I should give him a ticket.

Can I have brainlliest?

Hope it helped.

V I’mhjhvcbjvcvjhvvvggujvvcghhhvcccgggghh

Answers

Answer:

the like terms were not grouped together.

Write the first 4 terms of the sequence.
f(1) = 2 and f(n) = f(n - 1) + 2 for each whole number n greater than 1.
A 1,3,5, 7
B) 2,4,6,8
C) 1,2,3,4
D) 2,3,4,5

How do I write the First 4 terms so I can solve for the answer?

Answers

Answer:

Use the given functions to set up and simplify

7B.4=f(1)=2=Always(true)n=Always(true)1A⋅1=A3=A5=A7B=A

Step-by-step explanation:

LOOK AT THE IMAGE ABOVE & SOLVE IT BY SHOWING FULL STEPS! I will mark you brainlist if you show full steps

Answers

Answer:

Area of original shape: x1

Area of zoomed shaped: x4

Perimeter of original shape: x1

Perimeter of zoomed shaped: x2

Step-by-step explanation:

Since the image is zoomed in by 2, it means that all measurements are doubled. When calculating the area, the zoomed shape had an area 4 times greater than the original shape! With perimeter, instead of the same multiplier, the perimeter of the zoomed shape was only doubled of the original shape.

What is -11 x -8?

I suck at math :(

Answers

i didnt see the - on the 11 and 8 my bad :(

Answer:

88?

Step-by-step explanation:

Jason takes 3 pages of notes during each hour of class. In all, how many hours will Jason have to spend in class before he will have a total of 36 pages of notes in his notebook?

Answers

Answer:

36 pages/12 hours

Step-by-step explanation:

3 pages per hour

36 pages per ? hours

36 / 3 = 12

36 pages per 12 hours

Hope this helps!

please help me with this it's worth 80 points
and please show all work
3x - 4 + 6x = -31

17 = 3x - 10

2x + 6 = 4x - 8

17x - 5(3x - 11) = 41

5x - (3x - 6) = 18

6x - 3(4 - 5x) = 30

x - (-5) = 7

Answers

This is a lot of questions-

I did them all on a calculator.

1.)

3x - 4 + 6x = -31

3x + 6x - 4 = -31

9x - 4 = -31

9x = -27

Answer: x= -3

2.)

17 = 3x - 10

3x -10 = 17

-10 = -10

3x = 27

divide both sides by 3

Answer: x= 9

3.)

2x + 6 = 4x - 8

-6 = -6

2x = 4x -14

-4x (both sides)

-2x = -14

divide both sides by -2

Answer: x = 7

4.)

17x - 5(3x - 11) = 41

2x +55 = 41

-55 (both sides)

2x = -14

divide 2 both sides

Answer: x = -7

5.)

5x - (3x - 6) = 18

2x + 6 = 18

-6 both sides

2x = 12

divide both sides by 2

Answer: x = 6

6.)

6x - 3(4 - 5x) = 30

21 - 12 = 30

+12 boh sides

21x = 42

divide both sides by 21

Answer: x = 2

7.)

x - (-5) = 7

x + 5 = 7

-5 both sides

Answer: x = 2

this month, Carla caught the following fish in lake George: 24 trout, 41 sunfish, 12 perch, and 23 bluegills. If Carla catches another fish this month , what's the probability of her catching a trout

Answers

Answer:

I believe the answer is about 1/2!

Step-by-step explanation:

I don't have a step-by-step but when I took a test this question was on it and I got the question right by putting about 1/2!

The probability of her catching a trout is 6/25

What is probability ?

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

According to the question

based on given condition , formulate

24 ÷ (23 + 12 + 24 + 41)

Calculate sum or difference = 24/23 + 12 + 24 + 41

Calculate sum or difference = 24/59 + 41

Calculate sum or difference = 24/100

Reduce the fraction = 6/25

Hence, the probability of her catching a trout is 6/25

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Use the distributive property to write an equivalent expression.
2(n+8p)

Answers

Answer:

2n+16p

Step-by-step explanation:

The diagram at the right shows a path through a garden.

The approximate length of the path, p, can be found with the formula

[tex]} p^{2}[/tex] =[tex]8^{2}[/tex] + [tex]10^{2}[/tex]

Which of the following measures is closest to the length

of the path?

A. 10 m

B. 12 m

C. 13 m

D. 18 m

Answers

Answer: B about 13 m

Step-by-step explanation:

Calculate 8² = 64 and 10² = 100 Add to get 16

Then get √164 = =12.80624847

Round up to 13.

1-2 Properties of Operations: I can use properties of numbers to rewrite expressions. Type the name of the property that each equation represents.
5) 12 + 8 = 8 + 12 The property is

6) 19 + (42 + 8) = (19 + 42) + 8 The property is

7) 24 + 0 = 24 and 36 x 1 = 36 The property is
help me pleaseee

Answers

number 7 is identity I think

Plz help! Are they right? The questions are below!

Answers

Answer:

The sencond is wrong but the first is good

Step-by-step explanation:

Find the value of x.
55°
79°
110°
x°

Answers

Answer:

i think its 158

Step-by-step explanation:

i think what theyre doing here is a pattern because

79-55=24 and 110-79=31 which has no pattern but when u subtract 55 from 110 you get 110-55=55 so i just multiplied 79 by 2 getting the answer 158.

what is the slope and y-intercept of y=4x+2

Answers

Answer:

slope: 4

y-intercept: 2

Step-by-step explanation:

We are given an equation, y = 4x + 2, and we are asked to find the slope and y-intercept of the line. Looking carefully, we can see that the equation is given to us in slope-intercept form.

Slope-intercept form is:

y = mx + b

where m is the slope and b is the by-intercept.

Knowing this, we can find that 4 is the slope of the line and 2 is the y-intercept.

I hope you find my answer and explanation to be helpful. Happy studying.

For the given functions f and g, complete parts (a)-(h). F
f(x) = 5x + 8; g(x) = 7x-2

Answers

Answer:

Step-by-step explanation:

use math and add way after it

u welcome does work for u

6. Claire buys DVDs online. Each DVD that she orders costs $15 and shipping for her order is $10.
Claire can spend no more than $100. How many DVDs can she buy?

Answers

Answer:

5 dvds

Step-by-step explanation:

15 per dvd

15x+10 and then it has to be less then 100

I think the answer would be 5:)

please help!!!!!!!!!!!!

Answers

I Did This And I Somehow Came Out To B. So B I Guess Sorry if Im Wrong

Find the variation constant and an equation of variation for the given situation.

y varies directly as x, and y = 7 when x = 1/2.

Answers

Answer:

[tex]\displaystyle y=14\cdot x[/tex]

Step-by-step explanation:

Directly Proportion

It's said that y varies directly proportional as x, if:

[tex]y=k\cdot x[/tex]

Where k is a constant of proportionality.

We know that y=7 when x=1/2.

Using the above condition, we can find the value of k:

[tex]\displaystyle 7=k\cdot \frac{1}{2}[/tex]

Solving for k:

k=14

Thus, the equation is:

[tex]\boxed{\displaystyle y=14\cdot x}[/tex]

Other Questions

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Solve for the values of x: (2x-1)(x+4) = 0

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Solve for the values of x:

(2x-1)(x+4) = 0