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Lynna [10]
4 years ago
15

PLEASE HELP!!! WILL GIVE BRAINLIEST!!

Mathematics
1 answer:
iren2701 [21]4 years ago
6 0

Answer:

5 and it helps do the project

Step-by-step explanation:

its realy easy

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What is the total surface area??? HELP IM CONFUSED
jeka57 [31]

Answer:

bottom: 12 x 12 = 144

1st triangle: (12 x 8)/2 = 48

2nd triangle: 48

3rd triangle: 48

4th triangle: 48

144 + 48 + 48 + 48 + 48 = <u>336 cm squared</u>

3 0
3 years ago
La suma del cuadrado de un número más el triple del mismo número es igual a dieciocho. Encuentra dicho número.
Genrish500 [490]

If the sum of the square of a number plus the triple of the same number equals eighteen, the required numbers are 3 and -6

Let the unknown number be x

The square of the number is expressed as x²

Triple of the unknown number will also be expressed as 3x

Taking the sum of both numbers and equating it to 18 will give;

x^2 + 3x = 18\\x^2 + 3x - 18 =0

Factorize the resulting equation:

x^2+3x -18=0\\x^2+6x-3x-18=0\\x(x+6)-3(x+6)=0\\(x-3)(x+6)=0\\x= 3 \ and \ -6

Hence the required numbers are 3 and -6

Learn more here; brainly.com/question/13805464

3 0
3 years ago
What is -2x-5=4????
cupoosta [38]

Answer:

-9/2

Step-by-step explanation:

-2x-5 = 4

    +5   +5

-2x = 9

------  ------

-2    -2

x = -9/2

7 0
3 years ago
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I need this solve really fast.<br> Which sequences are geometric? Select three options.
Salsk061 [2.6K]

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I guess this is the answer

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cricket20 [7]

Answer:

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Step-by-step explanation:

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