Find the volume of a pyramid with a square base , where the area of the base is 7.5 cm ^ 2 and the height of the pyramid is 8.6 cm. Round your answer to the nearest tenth of a cubic centimeter.

Answer:

BC=3root7

CD=root58

Step-by-step explanation:

According to Pythagorean theorem, in a right triangle,a^2+b^2=c^2. a, b are two legs of right triangle. Cis the hypotenuse

12^2-9^2=63

BC=root63=3root7

BD^2-BC^2=CD^2

121-63=CD^2

CD=root58

Answer: The answer is x=[tex]\frac{-3-\sqrt{65} }{4}[/tex], [tex]\frac{-3+\sqrt{65} }{4}[/tex]

Step-by-step explanation:

1) You can solve a situation like [tex]ax^2+bx+c=0[/tex] using the quadratic formula

[tex]x=-b[/tex]±[tex]\sqrt{b^2-4ac}[/tex] / 2a

2) Apply that to the problem and we get x= -3±[tex]\sqrt{3^2-4*2*(-7)}[/tex]/2*2

3) Solve what's inside the square root and what's at the denominator --> x=-3±[tex]\sqrt{65}[/tex]/4

4) separate the solutions ---> [tex]x=\frac{-3+\sqrt{65}}{4} , \frac{-3-\sqrt{65}}{4}[/tex]

5) Your final solutions are [tex]x=\frac{-3+\sqrt{65}}{4} , \frac{-3-\sqrt{65}}{4}[/tex]

Answer:

(x+3)/(x-4)

Step-by-step explanation:

[2x²/(x-4)(x-3)] - [x²+9/(x-4)(x-3)] =

(x²-9)/(x-4)(x-3) =

(x+3)(x-3)/(x-4)(x-3) =

x+3/x-4

Answer:

2x²/x² - 7x + 12 - x² + 9/x² - 7x + 12

2x²/x² simplifies to just 2 (the x²s cancel out)

2 - 7x + 12 - x² + 9/x² - 7x + 12

add like terms: (2 + 12 + 12) + (-7x - 7x) - x² + 9/x²

= - x² - 14x + 9/x² + 26

Answer:

1/12

Step-by-step explanation:

1/4 - 1/6

= 1/12

Answer: I believe it is A.

Answer:

1=30

2=90

3=21

4=39

5=39

6=24

7=24

8=66

9=66

10=21

11=60

12=120

13=60

14=120

15=48

16=105

17=27

18=129

19=51

20=129

21=51

Step-by-step explanation:

please please please pleas mark me brainliest that was really hard

Answer:

The creation of Hammurabi's Code came about in response to a need for a solid code of law in the the realm of ancient Mesopotamia. It was created by the sixth Babylonian king, named Hammurabi, and put into law certain rules like "an eye for an eye, a tooth for at tooth

Step-by-step explanation:

Answer:

60%

Step-by-step explanation:

Answer:

60%

Step-by-step explanation:

1/5 = 20%

20% x 3 = 60%

Answer:

it means twenty-five and a half

Step-by-step explanation:

Answer:

25 is the whole number, and 1/2 is half. It can also be 25.5

Step-by-step explanation:

Answer:

c) y+4=3(x+1)

Step-by-step explanation:

Answer:

C. [tex]y+4=3(x+1)[/tex]

Step-by-step explanation:

Hi there!

What we need to know:

1) Determine the slope of the line

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

Plug in the points (-1,-4) and (2,5)

[tex]=\frac{5-(-4)}{2-(-1)}\\=\frac{5+4}{2+1}\\=\frac{9}{3}\\=3[/tex]

Therefore, the slope of the line is 3. Plug this into [tex]y-y_1=m(x-x_1)[/tex] :

[tex]y-y_1=3(x-x_1)[/tex]

2) Plug the point (-1,-4) into [tex]y-y_1=3(x-x_1)[/tex]

[tex]y-(-4)=3(x-(-1))\\y+4=3(x+1)[/tex]

Therefore, the correct answer is C.

I hope this helps!

Answer:

0.3

Step-by-step explanation:

yushhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answer:

0.3

Step-by-step explanation:

djdjwinqwp9dejnedm

Answer:

x<12

Step-by-step explanation:

Let's solve your inequality step-by-step.

x−3<9

Step 1: Add 3 to both sides.

x−3+3<9+3

x<12

Answer:

x<12

Answer: 3, 6, 3, 6

Step-by-step explanation:

See what common factors they are able to be multiplied by

Hope this helps

Answer:

that is a right triangle.

Step-by-step explanation:

if you do not know, then the square on the corner means 90 degrees. which is a right angle. acute angle means less than that square, and obtuse means over the square. (less and over 90 degrees)  

Answer:

The answer is 28.5

Step-by-step explanation:

Right triangle: 4.5

Top triangle: 6

Rectangle: 18

Your welcome :)

Answer:

Option B is true

Step-by-step explanation:

The formula for Cos is Adjacent/hypotenuse. 12 is Adjacent to angle e, and 17 is the hypotenuse.

Answer:

B: cos e = 12/17

Step-by-step explanation:

When using the SOHCAHTOA method you can see that Cos is adjacent over hypotenuse and in the triangle diagram they give you the measurements of the hypotenuse and the adjacent only, so you know that they would be using the cos equation.

Answer:

(-4, 5),  (-3, 9),  (2, 9)

Step-by-step explanation:

Mathematics: Explain/define.

When you translate a figure, you are moving only changing the location of the figure.

(X-COORDINATE): LEFT - SUBTRACT / RIGHT - ADD

(Y-COORDINATE): DOWN - SUBTRACT / UP - ADD

                               ↓            

For example, in this problem, the figure must be translated 7 units left and 3 units up.

This means to subtract the x-coordinates from 7 and add the y-coordinates to 3. (x - 7, y + 3)

Mathematics: Solve.

Original coordinates:

(3, 2) → (-4, 5).

(4, 6) → (-3, 9).

(9, 6) → (2, 9).

Mathematics: Conclude.

Therefore the new coordinates are: (-4, 5),  (-3, 9),  and (2, 9).

Answer:

Should Be 19 students

Step-by-step explanation:

Answer:

$14.70

Step-by-step explanation:

Find the 30% decrease:

21*0.3 = 6.3

Find new price:

21-6.3 = 14.7

Answer:

$14.7

Step-by-step explanation:

First, we need to convert the percentage to a decimal. 30% = .30

Now we multiply the price times the decimal, 21 x .30 = 6.3

We subtract this amount from the previous cost. 21 - 6.3= $14.7

Answer:

-4

Step-by-step explanation:

-3-9 +8

-12 + 8

= -4

Answer: its not loading

Step-by-step explanation:

Answer:

angle 5 is 100.

Step-by-step explanation:

angle 1 and 5 are the same because they are alternate angles

Answer:

Total Perimeter of Triangle: 6.33 + 6 + 2= 14.33

Step-by-step explanation:

First of all, to find the perimeter of a triangle you need to know the measurements of all three sides. When you need to find the measurement of the slanted side, ( or hypotenuse), you need to use the Pythagorean Theorem.

[tex]a^2 + b^2 = c^2[/tex]

Then, we insert the numbers:

[tex]2^{2} + 6^{2} =c^2[/tex]

[tex]2^2[/tex] = 4

[tex]6^2[/tex] = 36

So, [tex]c^2[/tex] = 40 or [tex]40^2[/tex]

But wait, the number is is still squared, so the square root of 40, is 6.32455532. ( The number rounded is 6.33, or in tenths, 6.3 )

Finally, we add the measurements of all the sides on the triangle to find the perimeter, which is:

14.33 or 14.3

Answer: 6700 meters

Step-by-step explanation:

From the question given, we are informed that Gephart is traveling from his house to the history museum and that the distance from home to the history museum is six and seven-tenths kilometers.

In order to know the distance in meters

that he will travel to the museum, we have to multiply the convert the distance given in kilometers to meters. This will be:

1000 meters = 1 kilometer

Therefore, 6 7/10km = (6 7/10 × 1000m)

= 6 7/10 × 1000

= 67/10 × 1000

= 67 × 100

= 6700 meters

He'll travel 6700 meters to the museum.

Answer:

C) 380.13

Step-by-step explanation:

The area of a circle is

[tex]A=\pi r^{2} \\A=\pi 11^{2}[/tex]

Answer:

9.5

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

if you take 327+w=500 you would have to subtract 500-327 then you would get 173

Answer:

The answer would be C.

Step-by-step explanation:

Because 327+ 173 = 500

Answer:

y = 96 * (1/2)ˣ   or

y = (-96)*(-1/2)ˣ

Step-by-step explanation:

y=a(b)ˣ

pass (1 , 48):  48 = a * b¹        ab = 48   ...(1)

pass (3 , 12):   12 = a * b³       ab³ = 12   ...(2)

(2)/(1):   ab³/ab = b² = 12/48 = 1/4

b = 1/2 or b = - 1/2

a = 96  or a = -96