3 years ago

Find the missing length round to the nearest tenth I don’t know how to do this

Mathematics

2 answers:

FromTheMoon [43]3 years ago

6 0

Answer:

Step-by-step explanation:

Alexandra [31]3 years ago

4 0

Answer:

19.4

Step-by-step explanation:

21^2 = 8^2 + a^2

441 = 64 + 377

the square root of 377 = approximately 19.4

You might be interested in

For the series 16, 24, 36, 54,... find S7.

diamong [38]

24 - 16 = 8
36 - 24 = 12
54 - 36 = 18

So, obviously, this isn't an arithmetic sequence.

24/16 = 3/2
36/24 = 3/2
54/36 = 3/2

Aha! This is a geometric sequence.

Now, let's find the 7th term in this sequence!

$a_n = a_1 \cdot r^{n-1}$

We're trying to solve for a_7.
We know that a_1 is 16
We know that n = 7
We know that r = 3/2 or 1.5

Plug it in!

$a_n = a_1 \cdot r^{n-1}\\\\a_7 =16 \cdot 1.5^{7-1}\\\\a_7 = 16 \cdot 1.5^6\\\\a_7 = 16 \cdot 11.390625\\\\\boxed{\bf{ a_7 = 182.25}}$

The seventh term is 182.25

5 0

3 years ago

5x – 4y = -10 y= 2x – 5 what's x and what's y!!

IgorLugansk [536]

X=-2+ 4/5y, y= no real number

7 0

3 years ago

Read 2 more answers

Solve for x & show steps 2000 = 400√x

Ilya [14]

x=25

Step-by-step explanation:

2000=400√x

Step 1: Flip the equation.

400√x=2000

Step 2: Divide both sides by 400.

400√x/400=2000/400

√x=5

Step 3: Solve Square Root.

√x=5

x=52(Square both sides)

x=25

Check answers. (Plug them in to make sure they work.)

x=25

7 0

3 years ago

Joy ate 1/4 of a pizza. If she divides the rest of the pizza into pieces equal to 1/8 pizza for her family how many pieces will

Ostrovityanka [42]

Joey will give his family 6 pieces of pizza

7 0

3 years ago

Read 2 more answers

SOMEONE HELP PLEASE I DONT WANNA FAIL

r-ruslan [8.4K]

Answer:

Step-by-step explanation:

6 0

3 years ago