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mamaluj [8]
3 years ago
7

I need help on number #8 35 points !!!!

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
7 0

Answer:

it is 923.2

Step-by-step explanation:

triangle equations: 48*13.9 is 667.2, which you then divide by two because it is a triangle, and you get 333.6

333.6+333.6+256

castortr0y [4]3 years ago
4 0

Answer:

29.9 cm

Step-by-step explanation:

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i have 6 digits. One of my 3s is worth 300.000. The other is worth 1/10 as much. My 6 is worth 600.The rest of my digits are zer
motikmotik
The way you wrote the problem makes the answer 330,600. I think your decimals were meant to be commas. If I am wrong, please forgive me.
3 0
3 years ago
6n+n+14=0 i need the math
Fofino [41]
Let's solve your equation step-by-step.<span><span><span><span>6n</span>+n</span>+14</span>=0</span>

Step 1: Simplify both sides of the equation.<span><span><span><span>6n</span>+n</span>+14</span>=0</span><span>Simplify: (Show steps)</span><span><span><span>7n</span>+14</span>=0</span>

Step 2: Subtract 14 from both sides.<span><span><span><span>7n</span>+14</span>−14</span>=<span>0−14</span></span><span><span>7n</span>=<span>−14</span></span>

Step 3: Divide both sides by 7.<span><span><span>7n</span>7</span>=<span><span>−14</span>7</span></span><span>n=<span>−2</span></span>

Answer:<span>n=<span>−<span>2</span></span></span>
6 0
3 years ago
You are constructing a concrete landing pad for a helicopter. You have 4704 cubic feet of concrete.
MAVERICK [17]

a) We have to calculate the height of the pad.

We know that the volume will be 4704 cubic feet.

We also know that the base of the pad is a square of side length 56 feet.

As the volume is the area of the base times the height, we can find the height by dividing the volume by the base area:

\begin{gathered} V=A_b\cdot h \\ h=\frac{V}{A_b}=\frac{4704\text{ ft}^3}{(56\text{ ft})^2}=\frac{4704}{3136}\text{ ft}=1.5\text{ ft} \end{gathered}

The height is 1.5 feet.

b) Now, we have a circular pad of which we know the height (1.5 feet) and the volume (4705 ft³). The area of the base will have to be the same as the are of the square: 3136 ft².

The area of this circular pad can be expressed as πD²/4, so we can calculate the diameter D as:

\begin{gathered} A=3136 \\ \frac{\pi D^2}{4} \\ D^2=3136*\frac{4}{\pi} \\ D^2=3136*\frac{4}{3.14} \\ D^2=3994.9045 \\ D=\sqrt{3994.9045} \\ D\approx63.21 \end{gathered}

The diameter is approximately 63.21 feet.

Answer:

a) The pad will be 1.5 feet thick

b) The diameter will be 63.21 feet.

3 0
1 year ago
Find the distance between (3,9) and (9,1)<br> HELPPPPPPPP PLZZZZ
antiseptic1488 [7]

Answer: i am almost positive

Step-by-step explanation:

that the answer is (6,4)

7 0
3 years ago
What is the solution to the system of equations?
xxTIMURxx [149]

As with a system of equations, call them A and B in order to keep them straight.

A: x + y = 7

B: x = y + 3

Because in B we have x on one on one side and not x on the other, substitution is the way to go. Substitute equation B into equation A.

x + y = 7 Equation A

y + 3 + y = 7 Putting B into A

2y + 3 = 7 Collect like terms

2y = 4 Subtract 3 on both sides

y = 2 divide both sides by 2

With y = 2 we can substitute that back into an original equation. Choose B.

x = y + 3

x = 2 + 3

x = 5


Thus x = 5 and y = 2, or (5, 2) is the solution of this system.

7 0
3 years ago
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