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Solve :-
9n²-64=0​

Answers

Answer 1
Factorize

(3n + 8) (3n - 8) = 0
3n + 8 = 0 and 3n - 8 = 0

Solve both for n

3n + 8 = 0
3n = -8
n = -8/3


3n - 8 = 0
3n = 8
n = 8/3

Therefore n = -8/3 and n = 8/3

Related Questions


If AABC undergoes a dilation of scale factor 3 centered at the origin, what will be the coordinates of the image of
point B?

A (5,6)

B (6,3)

C (6,9)

D (2,9)

Answers

The answer would be C (6,9)

Where is ( 0 , -5 ) on the coordinate plane?

Question 5 options:

Quadrant III


Quadrant II


x axis


y axis


origin

Answers

Answer:

y-axis

Step-by-step explanation:

It lies on the vertical y-axis

14. A normal distribution has a mean of 700 and a standard deviation of 35. What is the
probability that a value selected at random is at most 630?

Answers

Answer: 0.025

Step-by-step explanation:

1. A box without a top is to be made from a rectangular piece of cardboard, with dimensions 3 in. b)
in., by cutting out square corners with side length x and folding up the sides.

Answers

Answer:

a) The volume of the box is represented by [tex]V = 21\cdot x - 20\cdot x^{2}+4\cdot x^{3}[/tex].

b) A side length of 0.653 inches leads to the maximum volume of the box: 6.299 inches.

Step-by-step explanation:

a) The volume of the box ([tex]V[/tex]), in cubic inches, is modelled by the equation for the cuboid:

[tex]V = (3-2\cdot x) \cdot (7-2\cdot x) \cdot x[/tex] (1)

Where [tex]x[/tex] is the side length of the cutted square corners, in inches.

[tex]V = (21 - 20\cdot x + 4\cdot x^{2})\cdot x[/tex]

[tex]V = 21\cdot x - 20\cdot x^{2}+4\cdot x^{3}[/tex]

The volume of the box is represented by [tex]V = 21\cdot x - 20\cdot x^{2}+4\cdot x^{3}[/tex].

b) The method consist in graphing the polynomial and looking for a relative maximum. We graph the equation found in a) by means of a graphic tool. We present the outcome in the image attached below. According to this, a side length of 0.653 inches leads to the maximum volume of the box: 6.299 inches.

Zane needs 20 yards of fencing to go around his rectangular yard. What are possible dimensions for Zane's yard? Select all that apply .

Answers

Answer:

1 yard by 9 yards

2 yards by 8 yards

3 yards by 7 yards

4 yards by 6 yards

Step-by-step explanation:

the perimeter of the rectangular yard needs to be 20 yards

Perimeter of a rectangle = 2 x ( length + width)

20 = 2 x ( length + width)

( length + width) = 20 /2

( length + width) = 10

The sum of the length and width should equal 10

Possible dimensions that would equal 10 are :

1 yard by 9 yards

2 yards by 8 yards

3 yards by 7 yards

4 yards by 6 yards

​ simplify 2 × n × p × 4

Answers

Answer:

8np

Step-by-step explanation:

2 x 4 = 8

8 * n * p = 8np

A square picture frame has a perimeter of 32 inches. What is the length of the diagonal of the picture frame?

Answers

Answer:

The diagonal length is the square root of 128 so 11.31 inches

A recipe calls for 2,000 grams of sweet potatoes. Which expression can be used to find how many kilograms of sweet potatoes are needed?

Answers

Answer:

2 kilograms of sweet potato

Step-by-step explanation:

1 kilogram = 1000 grams.

So, to find how many kilograms there are divide by 1,000

2,000 ÷ 1,000 = 2

So, there are 2 kilograms needed.

Have a great day!

Find the Area in terms of pi

Answers

Answer:

121 π

Step-by-step explanation:

A= π * r^2

r^2 = 121 * π

whoever has the right answers for ALL will get brainiest and all points

Answers

Answer:

1st:  Equal to

2nd:  Greater than

3rd:  Less than

Answer:

Step-by-step explanation:

So the second problem 325 x 1 2/3 is greater then 325

and the third problem 325 x 1/4 is equal to 325

Melinda takes out a loan to purchase a car. The balance on her loan after x months is represented by the equation y = 10,000 – 250x and the value of the car after x months is represented by y = 8,000 – 50x. Which statement describes when Melinda’s loan will be equal to the value of the car?

After 10 months, the loan and value of the car will both be equal to $7,500.
After 12 months, the loan and value of the car will both be equal to $7,000.
After 14 months, the loan and value of the car will both be equal to $6,500.
After 16 months, the loan and value of the car will both be equal to $6,000.

Answers

Yooooooooooooo iky yoooio we go to the same

Answer:

lol

Step-by-step explanation:

Latasha ran a mile in 7.03 minutes and Erik ran a mile in 6.8 minutes. How many more minutes did it take Latasha to run the mile?

0.23
0.35
0.5
0.95

Answers

7.03-6.8= 0.23 therefore your answer is 0.23

Latasha needs to run 0.23 minutes more minutes to complete the mile.

What is the speed of a runner?

The speed of a runner is the ratio of the distance covered in a specific time.

Given,

Latasha ran a mile in 7.03 minutes and Erik ran a mile in 6.8 minutes.

Therefore, difference in time = (7.03 - 6.8) minutes = 0.23 minutes.

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IN DESPERATE NEED OF HELP!!!! TIMED TEST!!! WILL GIVE BRAINLYEST!! No links or I will report u

Answers

Answer:

a) Slope is -4/3 y-intercept is 2

b) Slope is 2 y-intercept is -1

Step-by-step explanation:

y=mx+c

m=gradient (or in this case slope)

c=y-intercept

Please and thank you​

Answers

Answer:

D

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

b/c 2x·2x-7·7

=4x²-49

if 100 students surveyed, 25 said they would vote for Jen for class president. If 2,000 students voted in the school's election, about how many votes should Jen receive?

A 25
B 100
C 500
D 1,900​

Answers

Answer:

500 Votes

Step-by-step explanation:

25/100 = 0.25

500/2000 = 0.25

Therefore 500 students would vote for Jen.

C.

The reason is because only a quarter of 100 said they'd vote which is found by doing 25/100 = 1/4 or 25% or .25 (all mean the same)

Apply that to 2000 by doing 2000 x 1/4 (or .25) and it should be 2000 x 1/4 = 500

What shape will result when you make a vertical cross section through the picture below?
A) Circle
B) Cylinder
C) Rectangle
D) Sphere​

Answers

Answer:

rectangle

Step-by-step explanation:

Inverse tangent is used to find a missing angle measure when we are given the___ and the ____.

a. opposite side; adjacent side
b. same side; other side
c. adjacent side; hypotenuse
d. opposite side; hypotenuse

Answers

I believe the answer is A hope this helps

We can infer here that the inverse tangent is used to find a missing angle measure when we are given the opposite side and the adjacent side.

What is inverse tangent?

An inverse tangent is known to be the formula that is used to find an angle of a right-angled triangle when certain sides are given. This is true when opposite and adjacent sides are given.

Thus, to find an angle using inverse tangent, we will have: θ = tan-1[ (opposite side) / (adjacent side) ].

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answer this for brainilest and 30points (no links or internet answer or you will get flagged

Answers

Answer:

0.6 is your answer if you need explanation than comment me

The green object below,is best defined as a ___ named____.

Answers

ray AC is your answer

The green object below, is best defined as a Ray named AC.

In geometry, a ray is a part of a line that consists of a single initial point called the endpoint and extends infinitely in one direction. It can be thought of as a half-line, with one end point and the other end extending infinitely.

Rays are named using two points, with the endpoint being mentioned first.

Here, in the figure the green line has one point A and the next C and it is further extending.

Thus, the Green line is a Ray name as ray AC.

Learn more about ray here:

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a) If a/b=3/4, find: 6a+b/3a+2b​

Answers

Answer:

22/17

Step-by-step explanation:

If a/b = 3/4, then a = 3 and b = 4.

6a + b/3a + 2b

Substitute the variables.

6(3) + 4/3(3) + 2(4)

Multiply 6 and 3, 3 and 3, and 2 and 4.

18 + 4/9 + 8

Add 18 and 4, 9 and 8.

22/17.

-6x+48=60
-48
-6x=12/-6
where does 12 come in ?

Answers

Answer:

from the police department -_-

Step-by-step explanation: sike they subtracted 48 from 60 they put the -48 on the wrong side

bill spent $19 at starbucks on a coffee and some cookies. if the coffee cost $5 each cookie cost $2, how many cookies did he buy?

Answers

Answer:

this is easy. we know that he spent $19 total, 1 coffee that costed $5, and that each cookie costs $2. all you have to do is subtract 5 from 19 and divide the remaining amount of money (14) by 2. this makes 7 the amount of cookies Bill bought.

What is the value of c?

Answers

Step-by-step explanation:

d=100° <------opposite angle of a parallelogram are equal

then c=96°

Fiona deposited $900 in the bank over 2 years. She earned $60 in
simple interest at the end of the 2 years. What was the annual
interest rate?

Answers

If Fiona deposited $900 in the bank over 2 years. She earned $60 in

simple interest at the end of the 2 years then 3.33% is the annual

interest rate.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that Fiona deposited $900 in the bank over 2 years.

She earned $60 in simple interest at the end of the 2 years.

We have to find the annual interest rate

I=PRT

60=900×2×T

60=1800T

Divide both sides by 1800

T=3.33%

Hence,  the annual interest rate is 3.33%

To learn more on Percentage click:

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A kangaroo hopped 3{,}5203,5203, comma, 520 yards to the lake with her baby in her pouch. She hopped the remaining 5{,}2805,2805, comma, 280 yards without her baby in her pouch. How many miles did the kangaroo hop to the lake? Miles

Answers

Answer:

5 miles

Step-by-step explanation:

Here is a more clear question :

A kangaroo hopped 3,520 yards to the lake with her baby in her pouch. She hopped the remaining 5,280 yards without her baby in her pouch. How many miles did the kangaroo hop to the lake? Miles

to determine the answer

1. add the yards hopped with the baby with the yards hopped without the baby together

3520+5280=8800 yards

2. convert yards to miles

1 yards = 0.000568182 miles

0.000568182 x 8800 = 5 miles

9.52 Times 6.7=?Show explanation too

Answers

Answer:

63.784

Step-by-step explanation:

(9.52)(6.7)

=63.784

wym explain just use your calculator and multiply

mrk brainliest plz

Answer:

348.4 (if that is the number of the question then 52 times 6.7)

63.78 (if 9.52 times 6.7)

elena bought 49 packs of red balloons, 66 packs of blue balloons, and 35 packs of yellow balloons. each pack contains 12 gallons. How many balloons there altogether? How many more red were balloons were there than yellow balloons?

Answers

Answer:

First, let's add 49 + 66 + 35 = 150 packs of balloons.

Each pack has 12 balloons, so 150 x 12 = 1800 balloons.

Step-by-step explanation:  

 

plz help me do this

Answers

Answer:

Data set doesn't go to 17

Step-by-step explanation:

None of the numbers go to 17

Answer:

1st option. the data set doesn't GO to seventeen

Step-by-step explanation:

look at the number line. I always had trouble with this so I get where your coming from first, look at where the line is touching don't pay attention to the box yet because it's confusing the entire point of this line is to show you that there MAY have been 1 or two people who where at 0 for this data and 1 or two people who were at 15

the point here is that the bulk of the data was 11-14, but because there were less people down lower, the mean of the data is at 13, and the data is bigger (skewed) to the left.

making everything lekse true except for the first option.

PLS ASAP Find the volume of the sphere.

Answers

Answer:

523.598776

Step-by-step explanation:

round to 524

Which expression is equivalent to

Answers

Answer:

it is not clear i cant see well the question

Step-by-step explanation:

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