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just olya [345]
3 years ago
5

What is 9 time 9? Please help.

Mathematics
2 answers:
Mandarinka [93]3 years ago
7 0
9 times 9 gives you 81

bazaltina [42]3 years ago
5 0
The answer is 81 because multiplication is just adding numbers. Just add 9+9 nine times.
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What is the correct answer?
Svetlanka [38]

Answer:

Terms must have the same variable (letter) and the same exponent (little number)

(7x² +3y+ 5) +(9x²+11y- 2)

Opening bracket

7x²+3y+5+9x²+11y-2

keeping like terms together

7x²+9x²+3y+11y+5-2

Since terms having same variable and exponent can be subtracted, added,divided and multiplied

So

Solving like terms we get

<u>16x²+14y+3</u> which is a correct answer.

4 0
2 years ago
Find the surface area of composite figures
Aleonysh [2.5K]

  • Answer:

<em>429 cm²</em>

  • Step-by-step explanation:

<em>A(blue) =</em>

<em>= 2×6cm×10cm + 2×6cm×8cm + 8cm×10cm + (8cm×10cm - 5cm×4cm)</em>

<em>= 120cm² + 96cm² + 80cm² + 60cm²</em>

<em>= 356 cm²</em>

<em>A(green) =</em>

<em>= 4cm×5cm + 2×5cm×5cm/2 + 4cm×7cm</em>

<em>= 20cm² + 25cm² + 28cm²</em>

<em>= 73 cm²</em>

<em>A(total) =</em>

<em>= A(blue) + A(green)</em>

<em>= 356 cm² + 73 cm²</em>

<em>= 429 cm²</em>

6 0
3 years ago
Read 2 more answers
What is the compound interest if $480 is invested for 12 years at 6% compounded continuously?
Anna [14]

Answer:

<em>$506.13</em>

Step-by-step explanation:

A = Pe^{rt}

A = $480 \times e^{0.06 \times 12}

A = $986.13

The account will be worth $986.13.

The interest earned is $986.13 - $480 = $506.13.

6 0
3 years ago
Please help guys ♡♡♡♡♡♡​
IrinaK [193]

Answer:

67 degrees

Step-by-step explanation:

in parallelograms, the diagonally opposite corner is most always the same degree.

5 0
2 years ago
Read 2 more answers
Item 3
eimsori [14]

Answer:

OPTION B AND D..

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<em>A</em><em>N</em><em>D</em><em> </em><em>G</em><em> </em><em>I</em><em>S</em><em> </em><em>1</em><em>0</em><em>0</em><em>0</em><em> </em><em>S</em><em>M</em><em>A</em><em>L</em><em>E</em><em>R</em><em> </em><em>T</em><em>H</em><em>E</em><em>N</em><em> </em><em>K</em><em>G</em>

6 0
3 years ago
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