Solve by factoring 3x^2-3x-60=0

Answers

Answer 1

Answer:

x = 5 or x = -4

Step-by-step explanation:

3x^2 - 3x - 60 = 0

Factor out 3 from the left side.

3(x^2 - x - 20) = 0

Divide both sides by 3.

x^2 - x - 20 = 0

Factor the trinomial.

(x - 5)(x + 4) = 0

x - 5 = 0 or x + 4 = 0

x = 5 or x = -4


Related Questions

what is one half times negative 2​

Answers

Answer:

the answer is -3 ihope your happy

Step-by-step explanation:

Answer:

the answer is -1

Step-by-step explanation:

o.5 x -2= -1

Can anyone help me please

Answers

Answer:

$35.64

Step-by-step explanation:

$5.78 + $19.87 + $24.99 = $50.64

$50.64 - $15 = $35.64

Answer:

35.64

Step-by-step explanation:

24.99 + 19.87 + 5.78 = 50.64

50.64 - 15= 35.64

what is the surface area of this design ?

Answers

The surface area is 392in squared

Compute the perimeter of the rectangle using the distance formula. (round to the nearest integer)

Answers

do you have a picture

Having a hard time with this one.

Answers

answer for this question is 1/16

Loretta is rolling an unfair 6 sided die with a single number between 1 and 6 on each face. She has a 70% chance of rolling a four. She is playing a game with a friend and knows that if she rolls a four on three of her next five rolls she will lose the game. She wants to determine the probability that she rolls a four on three of her next five rolls.

Which simulation design has an appropriate device and a correct trial?
A) Using a fair coin let heads represent rolling a four and tails represent not rolling a four. Flip the coin five times.
B) Using a table of random digits select a digit between 0 and 9. Let 0-6 represent rolling a four and 7-9 represent not rolling a four. Select five digits.
C) Roll a fair die with a single digit between 1 and 6 on each face. Let four represent rolling a four and 1-3 and 5 and 6 represent not rolling a four. Roll the die five times.
D) Using a table of random digits select a digit between 1 and 6, ignoring digits 0, 7, 8, and 9. Let 4 represent rolling a four and 1-3 and 5 and 6 represent not rolling a four Select five digits.

Answers

Answer:

The answer is option B.

Step-by-step explanation:

Loretta is rolling an unfair 6 sided die with a single number between 1 and 6 on each face and she has a 70% chance of rolling a four.

She is playing a game with a friend and knows that if she rolls a four on three of her next five rolls she will lose the game.

She wants to determine the probability that she rolls a four on three of her next five rolls.

The simulation design that is helpful here is :

B) Using a table of random digits select a digit between 0 and 9. Let 0-6 represent rolling a four and 7-9 represent not rolling a four. Select five digits.

use a percent proportion or equation to answer: 150% of what number is 24

Answers

Answer is 36

150 • 24= 3,600

3,600/100= 36

The students at Strawberry Lakes High were complaining that the $0.99 bags of chips from the vending machine are mostly air. The bags are 6.0 inches, by 1.0 inch, by 4.5 inches Eric put a ruler inside the bag before eating any chips and measured that there were 2.7 inches of chips a.) What is the percent of air in the bag? What is the cost per ounce of chips? ( 1 oz. = 8.1 cm^3)​

Answers

Answer:

3.3 inches of air in the bag.

I don't know how to get the second part. Hope this helps! :)

The answer to the first question.

Answers

Answer:?

Step-by-step explanation: what am I exactly reading it would better help if you typed it.

Answer:

see explanation

Step-by-step explanation:

Given

5x² - 4 - 8x

To find the zeros equate to zero and rearrange into standard form, that is

5x² - 8x - 4 = 0 ← in standard form

To factor the quadratic

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 5 × - 4 = - 20 and sum = - 8

The factors are - 10 and + 2

Use these factors to split the x- term

5x² - 10x + 2x - 4 = 0 ( factor the first/second and third/fourth terms )

5x(x - 2) + 2(x - 2) = 0 ← factor out (x - 2) from each term

(x - 2)(5x + 2) = 0

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

5x + 2 = 0 ⇒ 5x = - 2 ⇒ x = - [tex]\frac{2}{5}[/tex]

-----------------------------------------------------------------------------

The sum of the zeros = - [tex]\frac{b}{a}[/tex]

The product of the zeros = [tex]\frac{c}{a}[/tex]

with a = 5, b = - 8 and c = - 4

The sum = 2 - [tex]\frac{2}{5}[/tex] = [tex]\frac{8}{5}[/tex]

and - [tex]\frac{b}{a}[/tex] = - [tex]\frac{-8}{5}[/tex] = [tex]\frac{8}{5}[/tex]

Thus verified

The product = 2 × - [tex]\frac{2}{5}[/tex] = - [tex]\frac{4}{5}[/tex]

and [tex]\frac{c}{a}[/tex] = [tex]\frac{-4}{5}[/tex] = - [tex]\frac{4}{5}[/tex]

Thus verified

What is the slope of the line described by the data in the table below?
A 2/5
B 2/3
C 5/4
D 5/2

Answers

Answer:

D

Step-by-step explanation:

General Equation: y = mx + b

You need two pieces of data to solve this.

When x = 1, y = 8

8 = 1x + b

When x = -1, y = 3

3 = - x + b

==================

8 = x + b

3 = -x + b     If we add we get b so let's add.

11 =2b          Divide by 2

11/2 = b

==================

y = mx + b

y = mx + 11/2      Now we can solve for m

3 = -m + 11/2      Subtract 11/2

3 - 11/2 = - m

- 2  1/2 = -m        multiply by - 1

2  1/2 = m

m = 5/2

The answer is D

The answer to the problem is C

Plz help me with this

Answers

Answer:  [tex]\bold{B)\quad y=4sin\bigg(\dfrac{3}{2}x+\dfrac{2\pi}{3}\bigg)}[/tex]

Step-by-step explanation:

A sin graph is a cosine graph shifted to the left [tex]\dfrac{\pi}{2}[/tex] units.

[tex]y=4cos\bigg(\dfrac{3}{2}x + \dfrac{\pi}{6}\bigg)\qquad \implies y=4sin\bigg(\dfrac{3}{2}x+\dfrac{\pi}{6}+\dfrac{\pi}{2}\bigg)\\\\\\.\qquad \qquad \qquad \qquad \qquad \implies y=4sin\bigg(\dfrac{3}{2}x+\dfrac{4\pi}{6}\bigg)\\\\\\.\qquad \qquad \qquad \qquad \quad \implies \large\boxed{y=4sin\bigg(\dfrac{3}{2}x+\dfrac{2\pi}{3}\bigg)}[/tex]

Hannah measured the length, width, and height of her microwave in order to determine if it would fit in the space above her stove. Her measurements are shown below.

What is the volume of the microwave?

A. 1 9/16 cu ft.
B. 1 11/12 cu ft.
C. 1 3/4 cu ft.
D. 3 2/3 cu ft

Answers

Answer:

the answer is A.  1  9/16 cubic feet

Step-by-step explanation:

V = lwh

V = (5/3 ft) (5/4 ft) (3/4 ft)

V = 75/48 cu. ft.

V = 25/16 cu. ft.

V = 1  9/16 cu. ft

Please help me! 20 points!

A wooden block in the shape of a cube has a side length of 0.3 meter and has a mass of 18.954 kilograms.

What is the density of the block?


_______ ​kg/m³​

Answers

Answer:

We first have to find the volume of the cube: (0.3 * 0.3 * 0.3) we then get 0.027, then we plug in the numbers for the density formula. D = 18.954/0.027 will give us 702.

The density of the wooden block in the shape of a cube with the given side length and mass is 702kg/m³.

What is the density of the block?

Density is expressed mathematically as;

p = m / v

Where m is mass and v is volume.

Given the data in the question;

Mass of the cube wood block m = 18.954kgside length a = 0.3mDensity p = ?

First, we calculate the volume of the cube wood block.

Volume of a cube v = a³

v = ( 0.3m )³

v = 0.027m³

Now, we determine the density.

p = m / v

p = 18.954kg / 0.027m³

p = 702kg/m³

Therefore, the density of the wooden block in the shape of a cube with the given side length and mass is 702kg/m³.

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What is two times the quantity of a number minus 12

Answers

Answer: B Or Option 2

Step-by-step explanation: Your Answer Will Be The Second Choice Have A Great Day!

Factor 6x^4 - 5x^2 + 12x^2 - 10 by grouping. What is the resulting expression?

Answers

Answer:

[tex](6x^2 -5) (x^2 +2 )[/tex]

Step-by-step-explanation:

We are given the following expression and we are to factorize it by grouping:

[tex]6x^4 - 5x^2 + 12x^2 - 10[/tex]

We will group the first two terms and the last two terms to get:

[tex](6x^4 - 5x^2) + (12x^2 - 10)[/tex]

For the first group we need to factor out x^2 and for the second group we will factor out 2.

[tex]x^2(6x^2 - 5) + 2(6x^2 - 5) [/tex]

[tex](6x^2 -5) (x^2 +2 )[/tex]

What is the value of x?



Enter your answer in the box.

Answers

Answer:

50 =x

Step-by-step explanation:

The two angles are vertical angles, so they are equal

2 (x+10) = 3x-30

Distribute the 2

2x+20 = 3x-30

Subtract 2x from each side

2x-2x+20 = 3x-2x-30

20 = x-30

Add 30 to each side

20+30 = x-30+30

50 =x

Answer:

x = 50

Step-by-step explanation:

We are given a diagram showing two vertically opposite angles and we are to find the value of x.

We know that when two lines intersect each other, vertically opposite angles are formed which are equal to each other.

Therefore, we can write them as:

[tex] 2 ( x + 1 0 ) = 3 x - 3 0 [/tex]

[tex] 2 x + 2 0 = 3 x - 3 0 [/tex]

[tex] 3 x - 2 x = 2 0 + 3 0 [/tex]

x = 50

Help! This one right here I didn’t learn please

Answers

For this case we have to define trigonometric properties of rectangular triangles that, the sine of an angle is given by the leg opposite the angle on the hypotenuse of the triangle. So:

[tex]Sin (53) = \frac {x} {10}[/tex]

We clear x:

[tex]x = 10 * without (53)\\x = 10 * 0.79863551\\x = 7,986,351[/tex]

Rounding:

[tex]x = 8[/tex]

ANswer:

8.0

Answer:

x could be the opposite or adjacent side ( sin or cos ) but it will still give you the same answer

Step-by-step explanation:

     sin Ф = opp/hyp                    

    sin 53 = x/10

10 sin 53 = x

            x = 7.99

 

  cos Ф = adj/hyp

   cos 37 = x/10

10 cos 37 = x

             x = 7.99

Which situation is represented by the inequality?

5.00 + 1.00r ≤ 16.00
A) Tom wants to attend the town carnival. Suppose he can spend at most $16.00 at the carnival. The price of admission to the carnival is $1.00, and each ride costs an additional $5.00. What is r, the minimum number of rides he can go on?
B) Tom wants to attend the town carnival. Suppose he can spend at most $16.00 at the carnival. The price of admission to the carnival is $5.00, and each ride costs an additional $1.00. What is r, the minimum number of rides he can go on?
C) Tom wants to attend the town carnival. Suppose he can spend at most $16.00 at the carnival. The price of admission to the carnival is $1.00, and each ride costs an additional $5.00. What is r, the maximum number of rides he can go on?
D) Tom wants to attend the town carnival. Suppose he can spend at most $16.00 at the carnival. The price of admission to the carnival is $5.00, and each ride costs an additional $1.00. What is r, the maximum number of rides he can go on?

Answers

Answer:

Option D. The maximum number of rides is 11

Step-by-step explanation:

Let

r -----> the number of rides

we have

[tex]5.00+1.00r \leq 16.00[/tex]

Solve for r

[tex]1.00r \leq 16.00-5.00[/tex]

[tex]1.00r \leq 11.00[/tex]

[tex]r \leq 11.00[/tex]

The maximum number of rides is 11

therefore

Tom can spend at most $16.00 at the carnival

The price of admission to the carnival is $5.00

Each ride costs an additional $1.00

The maximum number of rides is 11

Answer:

The answer is D

Step-by-step explanation:

Tom wants to attend the town carnival. Suppose he can spend at most $16.00 at the carnival. The price of admission to the carnival is $5.00, and each ride costs an additional $1.00. What is r, the maximum number of rides he can go on?

A student has three puzzles each puzzle has 1250 pieces what is the total number of pieces in the puzzle’s

Answers

the answer is 3,750. you would multiply 1250 by 3

The total number of pieces in the puzzle’s is 3,750 pieces.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit,  followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

we have,

3 puzzle having 1250 pieces in each.

So, the total number of pieces are

= 1250 x 3

= 3,750 pieces

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Find the surface area of the square pyramid. Round your answer to the nearest hundredth

Answers

Answer:

175.415

Step-by-step explanation:

surface area of square pyramid is given by:

Area= s^2 + 2(s)(l)

where s is the base and l is the slant height

in given problem, slant height l is not given, so by using Pythagoras theorem finding l:

c^2= a^2 + b^2

     =  8^2 + 4^2

     = 48.49

c     = 6.96348

Now putting values of s=8 and l= 6.96 in first formula

Area= 8^2 + 2(8)(6.96)

      =  64 + 111.41

      = 175.415

!

The equation of line 1 is 3x−2y=5, and the equation of line 2 is x+2y=7. What is the point of intersection of the two lines?


A. (3,2)

B. (2,3)

C. (5,5)

D. (5,1)

Answers

Answer:

(3, 2)

Step-by-step explanation:

This is a system of equations so I'll solve it using the 'Addition method'.

3x - 2y = 5 | x + 2y = 7

Add the two equations together to get:

4x = 12

x = 3

Then we solve for y using the 2nd expression because it's easier.

3 + 2y = 7

2y = 4

y = 2

The point of intersection of the two lines 3x-2y=5 and x+2y=7 is found to be (3,2) by solving the system of equations simultaneously, making option A the correct answer.

To find the point of intersection of the two lines represented by the equations 3x−2y=5, and x+2y=7, we need to solve these equations together. This involves finding a common solution for x and y that satisfies both equations simultaneously.

Steps to Find the Intersection

Rewrite each equation in standard form if necessary. The equations are already in standard form.Solve one of the equations for one of the variables. Let’s solve the second equation for x: x = 7 - 2y.Substitute the expression for x from step 2 into the first equation: 3(7 - 2y) - 2y = 5.Simplify and solve for y: 21 - 6y - 2y = 5, which simplifies to -8y = -16. Solving for y gives y = 2.Substitute the value of y back into one of the original equations to solve for x. Using the second equation: x + 2(2) = 7, simplifying gives x = 3.

Therefore, the point of intersection of the two lines is (3,2), which corresponds to option A.

What is the angle measure of D?

52°


56°


74°


102°

Answers

Answer:

52°

Step-by-step explanation:

<D = 360 - (78+106 + 124)

<D = 360 - 308

<D = 52°

Answer:

52

Step-by-step explanation:

<106+ 78+ 124>= 308

360-308=52

HOPE THIS HELPS!!!

What is the sum of of the odd numbers from 101 to 299?

Answers

Answer:

400

Step-by-step explanation:

maybe

i hope that helps

The manger of a large store notices that there are 72 customers waiting to be check out, spread across 9 different check-out lines. Select all of the scenarios that would be proportional to what the manger saw.

Answers

72 divided by 9 = 8

Hope I helped

what is the value of z in the diagram?

Answers

Answer:

2

Step-by-step explanation:

PLS HELP. Find the first four terms of the recursive sequence defined by the following formula:

Answers

Answer:

see explanation

Step-by-step explanation:

Given the recursive formula [tex]a_{n}[/tex] = [tex]\frac{a_{n-1} }{4}[/tex] and

[tex]a_{4}[/tex] = 2 [tex]\frac{1}{4}[/tex] = [tex]\frac{9}{4}[/tex], then

[tex]\frac{a_{3} }{4}[/tex] = [tex]\frac{9}{4}[/tex] ( multiply both sides by 4 )

a₃ = 4 × [tex]\frac{9}{4}[/tex] = 9

[tex]\frac{a_{2} }{4}[/tex] = 9 ( multiply both sides by 4 )

a₂ = 36

[tex]\frac{a_{1} }{4}[/tex] = 36 ( multiply both sides by 4 )

a₁ = 144

The first 4 terms are

144, 36, 9, 2 [tex]\frac{1}{4}[/tex]

The first four terms of the recursive formula are 144, 36, 9, 9/4 .

What is a recursive sequence ?

A recursive sequence is an infinite sequence of numbers where each number in the sequence is equal to a fixed linear combination of one or more of its before or after number. In a recursive sequence, the series of the number present follows a particular sequence of logic.

How to solve the given recursive sequence ?

Given series is an = (an-1)/4 and also a4 = 9/4

Putting n = 4 in the given recursive sequence,

⇒ a3/4 = a4

∴  a3 = a4 * 4 = 9/4 * 4 = 9

Again putting n = 3 in the given recursive sequence,

⇒ a2 = 4*a3

∴  a2 = 4 * 9 = 36

Finally putting n = 2 in the recursive sequence,

⇒ a1 = 4 * a2

∴  a1 = 4 * 36 = 144

Therefore, the first four terms of the recursive formula are 144, 36, 9, 9/4 .

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an equilateral triangle has a perimeter of 36 cm. what is the area?

Answers

Answer:

Each side of this equilateral triangle is 12 cm.

A = (1/2)(12)(6√3) = 36√3 cm²

The equilateral triangle, with a perimeter of 36 cm, has a side length of 12 cm. Its area is [tex]\(36\sqrt{3} \, \text{cm}^2\)[/tex], calculated using the formula [tex]\(\frac{\sqrt{3}}{4} \cdot s^2\)[/tex].

For an equilateral triangle, the perimeter (P) is related to the side length (s) by the formula P = 3s. From this, you can find the side length s by dividing the perimeter by 3:

[tex]\[ s = \frac{P}{3} = \frac{36}{3} = 12 \, \text{cm} \][/tex]

Now, you can use the side length to find the area (A) of the equilateral triangle. The formula for the area of an equilateral triangle is:

[tex]\[ A = \frac{\sqrt{3}}{4} \cdot s^2 \][/tex]

Substitute the value of (s):

[tex]\[ A = \frac{\sqrt{3}}{4} \cdot 12^2 \]\[ A = \frac{\sqrt{3}}{4} \cdot 144 \]\[ A = \frac{144\sqrt{3}}{4} \]\[ A = 36\sqrt{3} \, \text{cm}^2 \][/tex]

Therefore, the area of the equilateral triangle is [tex]\(36\sqrt{3} \, \text{cm}^2\)[/tex].

The following frequency table shows the number of players on the Russian Bears volleyball team that have been
injured for each match this year.
Number of injured players
Number of matches
Find the median number of injured players.


Help me please​

Answers

Final answer:

The median of injured players in a match is found by arranging the number of injuries in each game in ascending order and identifying the middle value. The method slightly varies depending on whether the total number of matches is odd or even. The question lacks specifics for a detailed calculation.

Explanation:

To find the median of injured players, you need to arrange the number of injured players in each match in ascending order and identify the middle value. However, your question doesn't provide the specifics of the frequency table for me to proceed with a step-by-step calculation. The median is found differently depending on whether there's an odd or even number of matches. If there's an odd number of matches, the median would be the value directly in the middle of the organized list. If it's an even number, you'd average the two middle values.

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decide whether each statement is possible or impossible for some angle theta. tan theata =-35.4 possible or impossible ​

Answers

Answer:

It is possible

Step-by-step explanation:

x = 1.5990374 + π     n , for any integer  n

Use the formula d=rt to find the distance traveled by a car driving at an average speed of 65 miles per hour for 4.5 hours. How far would you travel? A. 144.5 miles B. 292.5 miles C. 325 miles D. 487 miles

Answers

B: 292.5; multiply 65x4.5

Using the formula d = rt, the distance traveled by a car moving at 65 miles per hour for 4.5 hours is calculated to be 292.5 miles.

Calculating Distance Traveled

To calculate the distance traveled by a car, we can use the formula d = rt, where d represents distance, r represents average speed (rate), and t represents time.

Given: average speed r = 65 miles/hour, time t = 4.5 hours.

Find: distance d.

We use the formula to solve for d:

d = (65 miles/hour)(4.5 hours) = 292.5 miles

Therefore, the car would travel a distance of 292.5 miles at an average speed of 65 miles per hour over 4.5 hours.

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