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Lisa [10]
3 years ago
15

Solve each using mental math. ​

Mathematics
1 answer:
S_A_V [24]3 years ago
6 0
T= 17

h= -7

x=12

b=9

Here’s all the answers.. may you put me as brainliest answerer? thanks !
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How can i solve 2×2+16x+y+34=0
IRISSAK [1]
PEMDAS
multiply 2x2=4 and simplify the equation by looking for like terms to combine.

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6 0
3 years ago
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7 0
3 years ago
A square has side length 10 yd. What is the length of a diagonal of the square?
Vsevolod [243]

Answer:

10√2

Step-by-step explanation:

Lets cut the square into a triangle, making a line from one corner to another, then let's see what we have.

We shoupd have a triangle where we don't know the hypotenuse, which we can find using the formula: a^2 + b^2 = c^2

so:

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now let's square root what we got

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3 0
3 years ago
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