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Licemer1 [7]
2 years ago
5

I NEED HELP PLEASEEE I WILL MARK YOU BRAINLIEST

Mathematics
1 answer:
Gemiola [76]2 years ago
5 0
Yess what do you need help with
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What is the length of the missing leg? If necessary, round to the nearest tenth.
Lesechka [4]

<u>Answer:</u>

  • a = 7.4

<u>Step-by-step explanation:</u>

<u>We can find 'a' through Pythagoras theorem.</u>

  • => 8² = 3² + a²
  • => 64 = 9 + a²
  • => a² = 55
  • => a = √55
  • => a = 7.416 = 7.4

Hoped this helped.

BrainiacUser1357

3 0
2 years ago
Read 2 more answers
Simplify √49 + [√81 - x(9x = 14)]
eimsori [14]

\longrightarrow{\green{- 9 {x}^{2}   +  14x + 16}} 

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

\sqrt{49}  + [ \sqrt{81} - x \: (9x   -  14) ] \\ \\   =  \sqrt{7 \times 7}  + [ \sqrt{9 \times 9}   - 9 {x}^{2}   +  14x] \\  \\  =  \sqrt{( {7})^{2} }  + [ \sqrt{ ({9})^{2} }  - 9 {x}^{2}  +  14x ] \\  \\  (∵ \sqrt{ ({x})^{2} } = x ) \\  \\  = 7 + (9 - 9 {x}^{2}   + 14x) \\  \\  = 7 + 9 - 9 {x}^{2}   + 14x \\  \\  =  - 9 {x}^{2}   +  14x + 16

\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}

3 0
3 years ago
What is 4(n-4)+14 equal if n=5
djyliett [7]

Answer:

18

Step-by-step explanation:

Given

4(n - 4) + 14 ← substitute n = 5 into the expression

= 4(5 - 4) + 14

= 4(1) + 14

= 4 + 14

= 18

5 0
3 years ago
Read 2 more answers
Tamara wants to calculate the height of a tree outside her home. Using her clinometer, she measures the angle from 35 feet away
serg [7]

Answer:

71.32 feet

Step-by-step explanation:

We set up a trigonometric function to get height of tree

Distance ,x = 35 feet away from tree base

Angle = 62⁰ at eye level

Y = tan(angle) * x

= Y = tan(62⁰) x 35

Y = 1.881 x 35

Y = 65.82 feet

We add Tamara's height to the total height of the tree

= 65.82feet + 5.5 feet

= 71.32 feet is the height of the tree

3 0
3 years ago
Which expression is equivalent to this expression?<br> X (2x + 3)
gayaneshka [121]

Answer:

Step-by-step explanation:

distribute x by 2 and 3 so it would be 2x+3x

6 0
2 years ago
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