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Naya [18.7K]
3 years ago
10

Please help me please

Mathematics
1 answer:
umka2103 [35]3 years ago
7 0

Answer:

<u>5x<30</u>

Open circle.

5x<30

Divide by 5

x < 6

Open circle, arrow to the left. Answer is H

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Help me with 16,18 and 20
Mandarinka [93]
16: -7(5)= -35 ( REMEMBER THE MOUTH EATS THE BIGGEST NUMBER!)
     -6(-6)= 36   therefore 36 is greater than -35
18: they are exactly the same because in multiplication with inters it matters when the signs change. so 3(-6) = -18 ad -3(6)= -18 then -18=-18
20: Same as 18 where division has the same rules. if 8x5=40 then 40/8=5
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Read 2 more answers
PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION
Alex17521 [72]

<u>Solution</u><u>:</u>

\sqrt{4x + 13}  = x + 2

  • First square both sides.

=  > ( \sqrt{4x + 13} ) ^{2}  = (x + 2) ^{2}

  • Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².

=  > 4x + 13 =  {(x)}^{2}  + 2 \times x \times 2 + (2) ^{2} \\  =  > 4x + 13 =  {x}^{2}   + 4x + 4

  • Now, transpose 4x and 4 to LHS.

=  > 4x - 4x + 13 - 4 =  {x}^{2}  \\

  • Now, do the addition and subtraction.

=  >  {x}^{2}  = 9 \\  =  >  x =  \sqrt{9}  \\  =  > x = ±3

<u>Answer</u><u>:</u>

<u>x </u><u>=</u><u> </u><u>±</u><u> </u><u>3</u>

Hope you could understand.

If you have any query, feel free to ask.

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2 years ago
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Because of the little square we know the total angle is 90

24 + 2x = 90

-24

2x = 66

/2

x = 33

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Cody made deposits of $45, $18 and $26 into his checking account. He then wrote checks for $21 and $93. Write and solve a numeri
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$45+$18+$26-$21-$93
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63+18=81
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