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frosja888 [35]
3 years ago
7

I need helppp please​

Mathematics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

How pooor are you it'svery hard

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Find the length of the missing side in the figure below. a = _______ cm.
WITCHER [35]

Answer:

\frac{2 \sqrt{177} }{5}

or

5.32cm correct to 2 decimal places

Step-by-step explanation:

This is a right angled triangle from what I know so we have to apply pythagoras theorem.

{7.1}^{2}  =  {a}^{2}  +  {4.7}^{2}

we need to rearrange this to find a²

{a}^{2}  =  {7.1}^{2}  -  {4.7}^{2}

a =  \sqrt{ \frac{708}{25} }

This can either be written as a fraction or decimal.

a =  \frac{2 \sqrt{177} }{5}

OR

a = 5.32

correct to 2 decimal places

5 0
2 years ago
Determine which system below will produce infinitely many solutions. (2 points)
disa [49]
The only system that has infinitely many solutions is NUMBER 2. Where you solve a system, and both sides end up being 0=0, then the system will have infinitely many solutions. Well, in these four choices, Number 2 is the only one that ends up being 0=0 after I solved it.
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3 years ago
5 x 4 - 98 + 56 +12 x 0 + 1 + 1 =
Zinaida [17]
The answer is -20
5•4=20-98=-78+56=-22+12=-10•2=-20
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3 years ago
9(x+4) Please find the equivalent expression.*​
sineoko [7]

Answer:

9(4)+4

Step-by-step explanation:

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Read 2 more answers
Can someone please help me
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