How do I Solve for x.
4x^2-64=0

Answers

Answer 1

Answer:

Step-by-step explanation:

.

4

2

Answer 2

Answer:

x = 4, -4

Step-by-step explanation:

You can do this by simply pressing the calculator OR by simplify

4x^2 - 64 = 0

(2x)^2 - 8^2 = 0

(2x - 8)(2x + 8) = 0

∴ 2x - 8 = 0 or 2x + 8 = 0

x = 4 or x = -4


Related Questions

The daily advertising revenue (in dollars) for a local newspaper is given by the function R(t) = -18t2 + 720t – 103, where t is number of years that the paper has been in production. What is the daily advertising revenue after the paper has been in business for 15 years?

Answers

Answer:

6647

Step-by-step explanation:

The computation of the advertising revenue for 15 years is shown below:

Given that

r(t) = -18t^2 + 720t - 103

where

t = number of years = 15

now put the value of t in the above equation

= -18(15)^2 + 720(15) - 103

= -4050 + 10,800 - 103

= 6647

Which expression is equivalent to the expression -3(4x - 2) - 2x?
Answers:
-8x
-16x
-14x - 2
-14x + 6

Answers

Answer:

-14x+6

Step-by-step explanation:

we distribute -3 in to get:

-12x+6-2x

Combine like terms

-14x+6

what is this plzzz help
8(2-4y)+5y(6-3)

Answers

Answer:

8(2-4y)+5y(6-3)

16-32y+30y-15

16-2y-15

16-15-2y

1-2y

Did they Ask you to simplify or to solve it ?

1. What relationship do you notice between the area of a 3x 3 square, 4 x 4 square, and 5x5 square?
2. What relationship do you notice between the area of a 5x 5 square, 12 x 12 square and 13x13 square?
Whoever answers these thanks!

Answers

Answer:

1) increasing the side by a quantity of 1 causes the new square to increase by 2 times the previous side quantity + 1.

Example 1: 3x3=9, if you increase the sides to 4x4 increases the square by (2x3+1) to be 16.

Example 2: 12x12=144, if you increase the sides to 13x13 increases the square by (2x12=1) to be 169.

2) The same relationship

Step-by-step explanation:

1)

3 x 3  = 9

4 x 4 = 16

5 x 5 = 25

2)

5 x 5 = 25

12 x 12 = 144

13 x 13 = 169

Please help


Please, please

Answers

Answer:

dang you lazy this so easy

if i helped 255 people and i only answered 38 questions whats my average number of people that i help per question?

Answers

Answer:

About 7 users per question

Step-by-step explanation:

Just divide the number of users helped by the number of questions answered.

can anyone help!
WITH STEPS!

Answers

Answer:

When we have something like:

[tex]\sqrt[n]{x}[/tex]

It is called the n-th root of x.

Where x is called the radicand, and n is called the index.

Then the term:

[tex]\sqrt[4]{16}[/tex]

is called the fourth root of 16.

And in this case, we can see that the index is 4, and the radicand is 16.

At the end, we have the question: what is the 4th root of 16?

this is:

[tex]\sqrt[4]{16} = \sqrt[4]{4*4} = \sqrt[4]{2*2*2*2} = 2[/tex]

The 4th root of 16 is equal to 2.

Help me with this!!!!

Answers

Answer:

v = 21

Step-by-step explanation:

BE = ED

So:

v + 63 = 4v

63 = 4v - v

63 = 3v

v = 63 / 3

v = 21

Solve for x please. :)

Answers

Answer:

180-130=50

Step-by-step explanation:

done hope you like it

i use the 180 because its a straight line from the x to the 130

-please help this is the last question i have for tonight and im struggling big time D:

Answers

Answer:

108 or 72

Step-by-step explanation:

:) cdhhyvfhjyvfyhgfvhghghhhjbh

do you have S s-n-a-p-c-h-a-t

Quadratic function Murder in a Hotel

Answers

what lol i didn’t understand

Find the area of the shaded polygons
PLS HELP ASAP!!

Answers

Answer:

4.5

Step-by-step explanation:

I do RSM

Brainliest if correct

Answers

Answer:

C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The polygons to the right are similar. Find the value of each variable. (Simply your answers.)
x = ___

y = ___

Answers

Answer:

x=15

y=8

if the triangles are proportional, then the smaller triangle is half the size of the large triangle

the point-slope for mhm of a line that has a slope of -2 and passes through point (5,-2) is shown below y+2=-2(x-5)

A. y=-2x+12
B. y=-2x+8
C. y=-2x-7
D. y=-2x-3

Answers

Answer:

y = -2x + 8 (B)

Step-by-step explanation:

Just expand y + 2 = -2(x-5)

y + 2 = -2x +10

y = -2x +8 (minus both sides by 2)

There are 15 counters. One-third of the counters are yellow . How many counters are yellow?

Answers

Answer:

5

Step-by-step explanation:

15 counters/3groups=5 counters per group

What's the slope for (9,6)and (5,4)

Answers

Answer:

1/2

Step-by-step explanation:

Use the slope formula.

[tex]m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

4-6/5-9 = -2/-4 = 1/2




A car bought for $13,000 depreciates at 15% per year. Use an exponential function to find the value of the car after 5 years.

Answers

Answer:

$5768.1

Step-by-step explanation:

Given data

Cost price= $13,000

Depreciation= 15%

Time= 5 years

The expression for the depreciation is given below

A= P(1-r)^t

Substitute

A=13000(1-0.15)^5

A=13000(0.85)^5

A=13000*0.4437

A=$5768.1

Hence after 5 years, the car will be $5768.1

Solve each equation b+3.3=8.9 what is b?

Answers

the answer will be 5.6 !

you can get this by doing 8.9 - 3.3 ! remember you can apply this to all problems by turning division to multiplication, addition to subtraction, etc.

please mark brainliest if this was useful ♡

(2-3)(x-3X2)
Which is the simplified form of the expression
(4-2)(x4) )
?
4x2y 16
4
2..16
X
4
1
14
4
14,8

Answers

Answer:

9x³-9x²+2x

Step-by-step explanation:

Let the expression be given as

(2-3x)(x-3x²)

Expand

= 2(x)-2(3x²)-3x(x)-3x(-3x²)

= 2x - 6x² -3x²+9x³

Rearrange

= 9x³-6x²-3x²+2x

= 9x³-9x²+2x

Hence the simplified form of the expression is 9x³-9x²+2x

Can someone please help me with math.

Answers

Answer:

D. m<0

Step-by-step explanation:

When there is negative correlation the line of best fit has a negative slope and the slope equation is y=mx+b where m determines direction.

Total amount = P (1 + i)t Alisha has a five–year car loan of $15,000 with an interest rate of 6 percent. If the interest is compounded annually, how much will she pay in total for her car?

Answers

Answer:

$20070

Step-by-step explanation:

Given data

Time= 5 years

Principal= $15,000

Rate= 6%

Total amount=  P (1 + i)^t

substitute

Total amount=  15000(1 + 0.06)^5

Total amount=  15000 (1.06)^5

Total amount=  15000*1.338

Total amount=  $20070

Hence the total amount will be $20070

Find the percentage change from
75 to 50.

Answers

Step-by-step explanation:

50÷75 is .6667. that means that 50 is 66.7 percent of 75.

100 minus 66.7 is 33.3. It is a 33.3 percent change

Answer:

-25%

Step-by-step explanation:

hope this helps!! please mark brainliest.

Can somebody help me with this math question, all you have to do is answer the equation, then it's described, and then it draw it out I'll give you 100 points and a Brainliest

Answers

___________________________________

[tex]\huge\underline{\tt{\red{Solution:}}}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶- 3(5x + 6) - 3x = 6 - 6x}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶(-15x - 18) - 3x = 6 - 6x}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶( - 15x - 3x)- 18 = 6 - 6x}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶( - 18x)- 18 = 6 - 6x}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶( - 18x) + 6x = 6 + 18}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶-12x = 24}[/tex]

[tex]\quad\quad\quad\quad\tt{⟶\frac{-12x}{-12} = \frac{24}{-12} }[/tex]

[tex]\quad\quad\quad\quad\tt{ ⟶\frac{ \cancel{ \red{-12}} \: x}{ \cancel{ \red{-12}}} = \frac{24}{-12} }[/tex]

[tex]\quad\quad\quad\quad ⟶\boxed{\tt{x = -2}}[/tex]

[tex]\huge\underline{\tt{\red{Answer:}}}[/tex]

[tex] \huge\quad\quad \underline{\red {\boxed{ \tt{x = -2}}}}[/tex]

___________________________________

#CarryOnLearning

✍︎ C.Rose❀

Is it A, B, C, or D?

Answers

Answer:

It's option D. 8(8x + 9y).

is y+7=2x a direct variation

Answers

Answer:

No, y+7=2x does not represent direct variation

Step-by-step explanation:

No, y+7=2x does not represent direct variation, because of the constant (initial value) 7.

y = 2x represents direct variation; y = 2x - 7 does not.

What's 0.016 as a fraction

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 2/125

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:

16/1,000

Understanding place values:

The first 0 before the decimal point in 0.016 represents ones, the 0 after the decimal point represents tenths, the 1 represents hundredths and the 6 represents thousandths. We use 1,000 in our fraction because of the place value.

Step-by-step explanation:

1. Convert 0.016 into a fraction:

   0.016 = 16/1,000

2. Simpilfy the fraction 16/1,000:

   16/1,000 ÷ 8 = 2/125

2/125 is equivalent to 0.016

Side Note: Step 2. is only for people looking for the simplified answer!

            ~Hope this helps!

           ~Hocus Pocus

Mike said he is thinking of a number. If you divide Mike's number by 4, the result is 20. What number was Mike thinking of? Use (n) to represent Mike's number.​

Answers

Answer:

4x20= n

n= 80

.............

Answer:

n = 80

Step-by-step explanation:

n ÷ 4 = 20

n = 4 × 20

n = 80

Is (a + b) and (a - b)? perfect square trinomials?
O True
O False

Answers

Answer:

False

Step-by-step explanation:

Pos and negs cannot be perfect square trinomials

the answer should be false

Need help asap will give brainlest whatever it is call

Answers

4 small and 2 large: $17.90
x small and y large: 1.95x + 5.05y
Other Questions
What is the area of a rectangular shaped yard enclosed by a fence that is 35 feet along the North side and 20 feet along the west side? What is not a franchise?In n outMcDonalds Burger KingOr high school Which expression has the greatest value? The Jamison Company's inventory was destroyed on July 4, 2016, when its warehouse caught on fire early in the morning. Inventory was totally destroyed. The accounting records, which were located in a fireproof vault, contained the following information: Sales (1/1/16 through 7/3/16)$240,000 Purchases (1/1/16 through 7/3/16)180,000 Inventory (1/1/16)45,000 Gross profit ratio25% of cost Using the gross profit method, what is the estimated cost of the inventory that was destroyed by the fire 1. Find the degree measure and the length of arc AB:12020 in. Katherine buys a tv with a normal price of $200 and she has a 25% off coupon. How much money did she save???? Los profesionales tienen muchas responsabilidades. De los dos verbos entre parntesis,encierra en un crculo el que mejor completa la oracin. Evaluate the following expression when x = -2 y = 3 z = - 4 A pet shop sells a 6 can multipack of dog food for 3.18 and a 15 can multipack for 7.80. Whichmultipack is the best value for money?B UTI-Write your answerCOOLE SETTINGS Add. Enter a number only as your answer in the space provided. -4/5 + 4/5 Please help me with my homework The hyperfocus on crime among athletes is limited to what two sports? please give the answer fast one Sunday, number of visitors of a zoo was 840. on Monday, the number of visitors is decreased to 420, by what percentage was it decreased ? Chelsea fills four bottles with water. She then places the four bottles of water in the sun. Each bottle contains one-half liter of water. After a few hours, Chelsea measures the water temperature in each bottle.Select the bottle that most likely has the highest water temperature. How do mountains affect the climate of a region?(Giving brainlist for a summary and correct answer) It asked you to determine thw heat change in the reaction CH4+Cl2-> CH3Cl + HClYou were given the bond energy of C-H= 414 kj/mol C-Cl= 244 kj/mol And the bond energy of H-Cl= 431 kj/molHow do you find the bond energy of CH3Cl then? Assume that a $1,000,000 par value, semiannual coupon US Treasury note with three years to maturity has a coupon rate of 3%. The yield to maturity (YTM) of the bond is 11.00%. Using this information and ignoring the other costs involved, calculate the value of the Treasury note:$960,214.55$504,112.64$680,151.97$800,178.79 Discuss how the pressure cooker is designed to achieve temperatures above 100C. Niagara Falls is a good example of...Energy being lost.Energy being created.Potential energy being converted into kinetic energy.Kinetic energy being converted into potential energy.