1. Which of the expressions below has a sum of 0? Select all that apply.
A) -18 + 81
B) -12 + 12
C) -6 + 6
D) 12 + (-21)
E) 3.3 + (-3.3)

Answer:

729

Step-by-step explanation:

Each side of the cube measures 9cm

The volume of a cube is V^3

Therefore the volume can be calculated as follows

= 9^3

= 729

Hence the volume is 729

Answer:

(a)

Step-by-step explanation:

x^-4 + -4 + -4 + -4 + -4 + -4 = x^-24

hope it helps :)

Answer:

60

Step-by-step explanation:

To find the area of a triangle, multiply the base and height, then divide by two

The center triangle's area is (5*6)/2, which is also 15.

Since all the triangles are congruent, multiply 15 by 4 to get the total surface area, which is 60

Answer:

25 dollars ?????????????????

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

Answer:

Kirsten travels 7.5 miles to go to work.

Step-by-step explanation:

Bike: 10 MPH

Time: 1/4 Hour

1/4 of 10 = 2.5

Distance travelled on bike: 2.5 miles

Train: 20 MPH

Time: 1/4 Hour

1/4 of 20 = 5

Distance travelled by train: 5 miles

Add the distances together.

5 + 2.5 = 7.5

7.5 miles

Answer:

Step-by-step explanation:

200 because 4 dived by 2=2. kay?

Answer:

4

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

Given the expression;

2 1/3 : 4 1/3 = 7 : x

Wea re to look for x;

Convert to improper fractions;

7/3 : 13/3 = 7:x

7/3 * 3/13 = 7/x

7/13 = 7/x

Cross multiply

7x = 13 * 7

7x = 91

x = 91/7

x = 13

Hence the unknown value is 13

Answer:

x = 13, y = 7

Step-by-step explanation:

The diagonals of a parallelogram bisect each other , so

x - 7 = 6 ( add 7 to both sides )

x = 13

and

2y - 6 = 8 ( add 6 to both sides )

2y = 14 ( divide both sides by 2 )

y = 7

Answer:

8 x 12 = 96    10 x 8 = 80   96 + 80 = 176 so the answer is 8 helmets and 10 pumps

Step-by-step explanation:

Answer:

-4a/-8 +-12a

Step-by-step explanation:

I'm assuming its just asking you to put it down and now solve it so, I plugged in the top to the bottom, and multiplied it all; getting ^, if its asking for a more simplified answer it would be a/2 + 12a ... I think

Answer:

0.09

Step-by-step explanation:

move decimal over to the left twice

Answer:

7 .............................

x²=6²+8²=36+64=100 <=> x=√100=10

Answer:

A.) .75

Step-by-step explanation:

So the upper quartile is basically just the median of the bottom half. So we take the bottom half of the numbers:

0.5, 0.5, 0.75, 0.75, 1, 1, 1  

And the median of the is 0.75

So the lower quartile is .75

hope this helps:)

Answer: 27/ D8

Step-by-step explanation: Don’t know if you still need the answer and Hope this helps and have a good day

Answer:

as what I think it's 45. maybe

Answer:

[tex]y=\frac{-2}{3}x+8[/tex]

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

1) Determine the slope (m)

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex] where the given points [tex](x_1,y_1)[/tex] are [tex](x_2,y_2)[/tex]

Plug in the given points (0,8) and (3,6)

[tex]m=\frac{6-8}{3-0}\\m=\frac{-2}{3}[/tex]

Therefore the slope of the line is [tex]\frac{-2}{3}[/tex]. Plug this into [tex]y=mx+b[/tex]:

[tex]y=\frac{-2}{3}x+b[/tex]

2) Determine the y-intercept (b)

[tex]y=\frac{-2}{3}x+b[/tex]

The y-intercept occurs when x=0. One of the given points is (0,8), so therefore, the y-intercept is 8. Plug this into [tex]y=\frac{-2}{3}x+b[/tex]:

[tex]y=\frac{-2}{3}x+8[/tex]

I hope this helps!

Answer:

18

Step-by-step explanation:

Step 1: Convert 25% to a fraction

[tex]\frac{25}{100}[/tex]

Simplify

[tex]\frac{1}{4}[/tex]

Step 2: Convert 72 to a fraction

[tex]72 = \frac{72}{1}[/tex]

Step 3: Set it up

[tex]\frac{1}{4}\times \frac{72}{1}[/tex]

Step 4: Cross divide

[tex]72 \div 4 = 18[/tex]

[tex]1 \div 1 = 1[/tex]

[tex]\frac{18}{1} = 18[/tex]

Therefore, the are 18 temporary employees in the local water slides.

if a₁ = 3 and  [tex]a_n = a^2_{n-1} + 1[/tex] then the fourth term of the given sequence is a₄ = 10,201.

Use the concept of series defined as:

The series where the common difference between any two next words stays constant is known as an arithmetic sequence.

Given that,

a₁ = 3

[tex]a_n = a^2_{n-1} + 1[/tex]

Here a₁ represents the first term of the sequence.

[tex]a_n[/tex] representing the nth term of the sequence.

Now 2nd term of the sequence is:

a₂ = a₁² + 1

Therefore,

a₂ = 3² + 1

a₂ = 10

3rd term is,

a₃ = a₂² + 1

a₃ = 10² + 1

a₃ = 101

And 4th term is,

a₄ = a₃² + 1

a₄ = 101² + 1

a₄ = 10,201

Hence,

The fourth term sequence is 10,201.

To learn more about sequence visit:

brainly.com/question/12373434

#SPJ12

The complete question is:

If a₁ = 3 and [tex]a_n = a^2_{n-1} + 1[/tex] then find the value of a₄.

Answer:

option 3

Step-by-step explanation:

divide the diameter by 2 to get the radius.

pi×r^2

3.14×42^2=5538.96 km^2

Answer: x = 24 & x = 96

Step-by-step explanation:

Answer: Every option given is a solution

Any value larger than 18 is a solution. So we can say x > 18.

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

Explanation:

To isolate x, we multiply both sides by 6 like so

3 < x/6

3*6 < x

18 < x

x > 18

In the last step, I swapped the left and right sides. This swap meant that I had to flip the inequality sign as well. Saying x > 18 means we can pick anything larger than 18 to have it as a solution. Something like x = 5 is too small, but values like x = 24 and x = 96 will work. In fact, all of the answer choices given are larger than 18. So you'll check each answer box.

---------

As a way to confirm a potential answer, we plug it back into the original inequality. Let's say we wanted to check x = 90

So,

3 < x/6

3 < 90/6 ... replace every x with 90

3 < 15

The last inequality is true, because 3 is indeed smaller than 15. Therefore, the original inequality is true when x = 90. We confirm that x = 90 is a solution.

The steps to confirm x = 114, x = 96, and x = 24 will follow the same idea. I'll let you do those confirmations.

Answer:

Step-by-step explanation:

Disclaimer: Some of my reasons may be a bit different than what you use.

stmt                                                  rsn

1. BC = AD, AD = 17, DC = 14,        1. given

m<1 = m<2

2. AC = CA .                                    2. reflexive prop.

3. ΔABC ≅ ΔCDA                           3. SAS

4. AB = DC                                      4. CPCTC

5. AB = 14, BC = 17                          5. substitution, 1, 4

You mean "four" erasers instead of "for" erasers​ which i corrected and solved.

Answer: You will pay 102Ghana cedis

Step-by-step explanation:

a pencil cells at 18 Ghana cedis

Three pencils will cost 3 x 18Ghana cedis=54 Ghana cedis

Also an eraser class at 12 Ghana cedis

Four erasers will cost 4 x 12 =48Ghana cedis

Total amount for three pencils and for erasers =54 Ghana cedis+48Ghana cedis=102Ghana cedis.