18 - 2n2 for n = 3
Need help

Answers

Answer 1

Answer:

Step-by-step explanation:

Here are some steps to help you

Step 1

18 - 2n2  We are gonna be evaluating

Step 2

18 - 2n^2  Substitute n for 3

18-2(3^2)

Step 3

18-2(3^2)  simplify

0

So therefore, your answer is 0

Hope this helps


Related Questions

Write the values in the boxes that make the statement true

Answers

Answer:

[tex]\frac{5}{3}xz^8*9x^6y^0z^2 = 15x^7z^{10}[/tex]

Step-by-step explanation:

Given

[tex]\frac{5}{3}xz^a*bx^cy^dz^2 = 15x^7z^{10}[/tex]

Simplify

[tex]\frac{5}{3}b*x^{1+c}z^{a+2}y^d = 15x^7z^{10}y^0[/tex]

Compare left and right sides and

Find b:

[tex]\frac{5}{3}[/tex] b = 15 ⇒ b = 15*3/5 = 9

Find c:

1 + c = 7 ⇒ c = 7 - 1 = 6

Find a:

a + 2 = 10 ⇒ a = 10 - 2 = 8

Find d:

d = 0

Solution is:

[tex]\frac{5}{3}xz^8*9x^6y^0z^2 = 15x^7z^{10}[/tex]

When a triangular prism is intersected by a plane parallel to the bases, what is
the resulting cross-section?
A) rectangle B) circle. C)triangle

Answers

Answer:

C:  triangle

Step-by-step explanation:

the cross section is a triangle that is smaller than the base triangle.

Is "three less than a number" equivalent to "the difference of three and a number?"
Explain your answer.

Answers

I’ll use “x” as “a number”

So it’s basically asking if-

X-3=X-3

Obviously the answer is yes.
X-3 is equal to X-3.

Nolan reports the weather for TV 12's popular afternoon news show. Last month, he tracked
the noon temperature each day in the two largest cities in the area, Hooverville and Deeson
City.
Which city had a lower median temperature?
Hooverville
Deeson City

Answers

Answer:

Hooverville

Step-by-step explanation:

The Hooverville has lower median temperature.

What is Box and Whisker Plot?

A box and whisker plot is a method for abstracting a set of estimated data using an interval scale. Another name for it is simply a box plot. Most of the time, these are used to interpret data. It is one kind of graphical method that shows how the data in the dataset changes. The histogram can also be used to show the data. However, the histogram provides an adequate display. Since multiple sets of data can be displayed in the same graph, a box and whisker diagram will provide additional information, making it superior to a histogram.

Given Box and Whisker Plot of two cities which show's the  noon temperature each day,

From the graph Median of Hooverville is 36 and

median of Deeson City is 38

we can say that Hooverville has lower median temperature.

Hence the lower median temperature is of Hooverville.

Learn more about Box and Whisker Plot;

https://brainly.com/question/2742784

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PLEASE HELP IM DESPRATE 50 POINTS

Explain a real world example of a combination where repetition is allowed. You need to EXPLAIN WHY, not just give an example.

Answers

A real world example where repetition is allowed is in the sport of archery, where players get multiple attempts to shoot an arrow as close to the center of the target as possible

f(x) = -2x + 9 What is f(2h) ?

Answers

Answer:

f(2h) = -4h + 9

Step-by-step explanation:

Jacob:  Start with the given function f(x) = -2x + 9 and replace 'x' with 2h:

f(x) = -2x + 9 becomes:

f(2h) = -2(2h) + 9, or

f(2h) = -4h + 9

Answer:

-4h + 9

Step-by-step explanation:

f(x) = -2x + 9

f(2h) = -2(2h) + 9

f(2h) = -4h + 9

SOMEONE DO THIS QUICKLY! ITS DUE IN AN HOUR

Answers

Answer:

10. Y=151°

Z=29°

X=29°

11.

y: 61°

X: 151°

z:119°

12.

y:125°

x:55°

z:55°

13.63°

14.115°

15.131°

16.X=13°

17.X=4°

18.X=21°

19= X=7°

20= X=12°

21= X=9

Solve for the surface area please

Answers

Answer:

77.35

Step-by-step explanation:

8x7=56

7x6.1=42.7

42.7x0.5=21.35

56+21.35=77.35

What is the radius of this circle?

Answers

Answer:

5 cm

Step-by-step explanation:

Here, In given circle the radius is 5cm

-TheUnknownScientist

Convert 60% into a decimal and a Fraction(Simplify)
Decimal
Fraction

Answers

Answer:

decimal: .6

fraction: 3/5

Find the volume of a right circular cone that has a height of 16 m and a base with a
circumference of 14.7 m. Round your answer to the nearest tenth of a cubic meter.

Answers

Answer:

Step-by-step explanation:

Start earning $78/hourly for working online from your home for few hours each day... Get regular payment on a weekly basis... All you need is a computer, internet connection and a little free time..... Read more here... www.Nifty2.com

A hiker begins at 2,000 feet above sea level and takes a break at 1,600feet above sea level. What is the hiker change in elevation?

Answers

The hikers change in elevation is 400 feet.

Since they are both above sea level, all you would do is subtract

2000-1600=400

Ann picked 29 apples. She took a apples to school. Then, she took 13 apples to soccer practice. Now, she has 8 apples left. How many apples did Ann take to school?
Which equation could be used to solve the question below?
A.
29 − a + 13 = 8
B.
29 + a − 13 = 8
C.
29 − a − 13 = 8
D.
29 + a + 13 = 8

Answers

Answer:

C

Step-by-step explanation:

Because each time she kept taking away apples

Answer:  A

The total apples minus the apples she took to school + the apples she took to school, youre looking for the apples she took to school not how many she has left

This year, The Springfield Times had 11,322 subscribers. That is 85% more than they had last year, before the paper was bought out. How many subscribers did the paper have last year?

Answers

Answer:

The paper had 1698.3 subscribers last year.

Step-by-step explanation:

11,322 * 85% = 9623.7

11,322 - 9,623.7 = 1698.3

So, the answer is 1698.3

Hope this helps! :)

B3BB
Which graph represents the solution set of the inequality x+226?
986
08
4
9 S
7
8
6
+
0 1 -
SS 986
1
2
3
S
6
7
6 8
1 S 986
0
1
2 3
4.
5
9
7 8 9
0
1
2
S
4
5
9
B 2
6

Answers

Answer:

C is correct

Step-by-step explanation:

Firstly, we have to solve for x in the solution set of the inequality

We have this as follows;

x + 2 ≥ 6

x ≥ 6-2

x ≥ 4

To graph this, we consider the middle sign which is greater than or equal to

So, the inequality sign has to face the right side

secondly, it has to be shaded on the point 4 due to the fact that it has the ‘equal to’ beneath the single inequality symbol

so, the correct answer here is option C

Mark pays $4.68 for 0.72 of a pound of almonds. How much is one pound of almonds?

Answers

Answer:
The answer is 6.50
Step-by-step explanation:
To solve and to find the cost ratio, we will do the cross multiplying process;
4.68 = x
0.72 1
Next, we will solve for x;
0.72x = 4.68
x = 4.68 / 0.72
x = 6.50

Answer:

$6.50/lb

Step-by-step explanation:

4.68/0.72 = $6.50/lb

3/4 + (-1/2) + (-2/3)

Answers

Answer:[tex]- \frac{5}{12}[/tex]

Step-by-step explanation:

https://www.symbolab.com/

Answer:

Okay so you are going to get -5/12

Step-by-step explanation:

what you are going to do first is look at your signs the plus and minus signs are there to try and mix you up. What you are doing is subtracting all three of these fractions... Okay?

3/4 - 1/2 - 2/3

What you need to do is turn 1/2 into 1/4 because when adding or subtracting fractions you need to have the same denominator.

Subtract:

3/4 - 2/4 = 1/4

Now you are going to have to multiply the tops and the bottom of 2/3 by four (you should get 8/12) and multiply 1/4 (top and bottom) by three (you should get 3/12). This allows you to subtract 2/3 and 1/4 to get a product of 5/12. You can not simplify this fraction any further so you have your answer!

-5/12

*EDIT

Don't forget the minus sign.

In UVW, u=51 inches,v= 61 inches and w= 62 inches.find the measure of angle V to the nearest degree

Answers

Answer:

49degrees

Step-by-step explanation:

Using the cosine rule

u² = v²+w²-2vwcosU

Substitute the given values

51² = 61²+62²-2(61)(62)cosU

2601 = 3721+3844-7564 cosU

2601 = 7565-7564cosU

-7564cosU = 2601-7565

-7564cosU = -4964

CosU =-4964/-7564

CosU = 0.6563

U = arccos(0.6563)

U = 49degrees(to nearest degree)

Which of these can not form a perpendicular bisector?
O A. a line segment
O B. a circle
O C. a pair of parallel lines
O D. a right triangle

Answers

B. Is the correct answer. A circle can not form a perpendicular bisector as it is rounded and not straight.

The solution is : Second option is correct. O B. a circle, can not form a perpendicular bisector.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”. The perimeter around the circle is known as the circumference.

here, we have,

Since we know that to form perpendicular bisector .

We need atleast two lines which form right angle.

So, right triangle can form perpendicular bisector with base and height.

Parallel lines can also form perpendicular bisector if a line is drawn from mid point of one line to mid point of another line.

A line segment can form perpendicular bisector.

But circle can't as it is curved shape it needs line to make perpendicular bisector.

Hence, Second option is correct. O B. a circle, can not form a perpendicular bisector.

Learn more about circle here:

brainly.com/question/11833983

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The repeating decimal, 0.27, is converted to the fraction 0.27 =
What is the value of x in the fraction?

Answers

Answer:

The value of x is 11

Step-by-step explanation:

The product of 3 and a number is at most nine

Answers

9y is the answer I believe

I really need help guys plz help me and thank you.

Answers

Answer:

It's A

Step-by-step explanation:

............none...........

I think is A. It looks kinda reasonable.

The area of a triangle is 36 cm square. Give three possible sets of dimensions for the triangle and explain whether or not you can also give the triangles' side length.

Answers

Answer:

[tex]Base = 6cm[/tex] and [tex]Height = 12cm[/tex]

[tex]Base = 4cm[/tex] and [tex]Height = 18cm[/tex]

[tex]Base = 9cm[/tex] and [tex]Height = 8cm[/tex]

Step-by-step explanation:

Given

Shape: Triangle

[tex]Area = 36cm^2[/tex]

Solving (a): Three possible dimensions

The area of a triangle is:

[tex]Area = 0.5 * Base * Height[/tex]

Let: [tex]Base = 6cm[/tex]

So, we have:

[tex]36= 0.5 * 6* Height[/tex]

[tex]36= 3* Height[/tex]

Solve for Height

[tex]12 = Height[/tex]

[tex]Height = 12[/tex]

So, a possible dimension is: [tex]Base = 6cm[/tex] and [tex]Height = 12cm[/tex]

Let: [tex]Base = 4cm[/tex]

So, we have:

[tex]36= 0.5 * 4* Height[/tex]

[tex]36= 2* Height[/tex]

Solve for Height

[tex]18 = Height[/tex]

[tex]Height = 18[/tex]

So, a possible dimension is: [tex]Base = 4cm[/tex] and [tex]Height = 18cm[/tex]

Let: [tex]Base = 9cm[/tex]

So, we have:

[tex]36= 0.5 * 9* Height[/tex]

[tex]36= 4.5* Height[/tex]

Solve for Height

[tex]8 = Height[/tex]

[tex]Height = 8[/tex]

So, a possible dimension is: [tex]Base = 9cm[/tex] and [tex]Height = 8cm[/tex]

So, the three possible dimensions are:

[tex]Base = 6cm[/tex] and [tex]Height = 12cm[/tex]

[tex]Base = 4cm[/tex] and [tex]Height = 18cm[/tex]

[tex]Base = 9cm[/tex] and [tex]Height = 8cm[/tex]

Solving (b): Can the side lengths be given

We can only determine the base and the height of the triangle, the third side length can not be determined using the available information

Carol has eight and 4 3/4 yard of material do you need to use 1/3 material to make a dress how many yards of material will she need to make the dress

Answers

Answer:

2 11/12

Step-by-step explanation:

(1/3)×(35/4=35/12=2 11/12 yards

PLEASE HELP!!
Find the volume of the following
square pyramid.
Help Resources
8 cm
6 cm
6 cm
V = [?] cm3
Enter

Answers

Answer:

96

Step-by-step explanation:

The volume of the square pyramid is 96 cm³.

How to find the volume of a square pyramid?

You can locate the extent of a normal square pyramid with the use of the volume formula= base location² × height / 3. Take be aware that the bottom vicinity equals the square of the pyramid's base side period. However, the peak is the perpendicular distance between the pyramid's base and the pyramid's vertex.

By using the given formula, we get

V= a² h/3

=6² * 8 / 3 = 96

The answer is 96 cm³.

The volume of a pyramid is found using the formula V = (1/3) B*h, where 'B' is the base area and 'h' is the height of the pyramid.

Learn more about the volume of a pyramid here: https://brainly.com/question/21510592

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Find the output y when the input x is -4
y=?

Answers

Answer:

[tex]y=1[/tex]

Step-by-step explanation:

on the graph find the x value -4 then find the y value where the line is.

Answer:

y = 1

Step-by-step explanation:

taking x as - 4

plotting it on a graph and cross pointing from hence the y will be like a straight line before it came down to -4

A rectangular prism has a volume of 220 cubic cm and a height of 5 cm it's base might have side that measure A. 11 cm and 4 cm B. 6 cm and 8 cm C. 12 cm and 3 cm D. 14 cm and 5 cm

Answers

Answer:

The answer is A 11 and 4= 44

Step-by-step explanation

IV
Une porte est munie d'un dispositif portant les touches 1; 2; 3; 4; 5; 6 ; A;B; C.
La porte s'ouvre lorsqu'on compose un code formé de trois chiffres distincts suivis d'une lettre .
1° Déterminer le nombre de codes possibles.
2º Déterminer le nombre de codes si les trois chiffres sont impairs .

Answers

Answer:

1. 648

2. 81

Step-by-step explanation:

1.

6 * 6 * 6 * 3 = 648

2.

3 * 3 * 3 * 3 = 81

please help me i'm going to give you brainless

Answers

Answer: 280 children

Explanation: Each grade has 70 kids. You have 4 total grades (3rd, 4th, 5th, and 6th grade). You have to add the number of kids you have in every grade. In this case, 70 children in 3rd grade, 70 children in 4th grade, 70 children in 5th grade, and 70 children in 6th grade. The problem would look like this:

70 + 70 + 70 + 70

Then your answer is 280 when you add them all together!

What is the best estimate for 42% of 68?

Answers

Answer:

29 when rounded up 27 when rounded down and 28.56 in genral

Step-by-step explanation:

Answer:

28 or 30

Step-by-step explanation:

42 to 40 and 68 to 70 then

hope this helps :b

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