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Anna35 [415]
2 years ago
13

7 , 14 , 21 , 28 __ __ __​

Mathematics
1 answer:
kotegsom [21]2 years ago
4 0
35, 42, and 49 jagskahskahslahslabajak
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Need a bit of help with this question:
DiKsa [7]

Firstly let's find hypotenuse(let it will be "n" of smaller triangle

Let use Pythagorean theorem

a^{2}  +  {b}^{2}  =  {n}^{2}  \\  {20}^{2}  +  {10}^{2}  =  {n}^{2}  \\  n =  \sqrt{500}

Now we need to find hypotenuse(x) of bigger triangle

{c}^{2}  +  {n}^{2}  =  {x}^{2}  \\  {9}^{2}  +  { \sqrt{500} }^{2}  =  {x}^{2}  \\ x =  \sqrt{581}

The value of x must be rounded to 1 DP, so

\sqrt{581}  = 24.1039... \\  \sqrt{581}  \simeq \: 24.1

Answer: x=24.1

3 0
3 years ago
Justify each step of this inequality by stating the property that was used to get to each step.
Allushta [10]

Answer:

Step-by-step explanation:

step 1 simplified like terms -11k +3k =8k

step 2 incorrect should be -4k -20 on the left side distributive property

step 3 added 8k to each side

step 4 added 20 to each side

step 5 divided each side by 4

6 0
2 years ago
Karen has 16$ to spend on games.if she only spent 14$ what percent of her money did she spend
nevsk [136]
14/16= .875 the answer is 87.5%
3 0
3 years ago
HELP, EXTRA POINTS AND BRAINIEST UMM DONT GUESS AND "NO NO NOOO LINKS" ty
3241004551 [841]

Answer:

236.3 feet squared.

Step-by-step explanation:

Base Surface Area =  8 squared

=  64 feet squared

Lateral Surface Area =  

2×8× √  

( 8 )2 + 102

2

=  172.3 feet sqaured

Total Surface Area = 236.3 feet squared

Please brainliest! I worked so hard!

7 0
2 years ago
I really need help!!!
Licemer1 [7]

Answer:

3

Step-by-step explanation

cause there are three rooms that need to be painted

8 0
3 years ago
Read 2 more answers
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