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slega [8]
2 years ago
15

Please help please please

Mathematics
2 answers:
Svetradugi [14.3K]2 years ago
5 0

Answer:

The Answer Is 70

Step-by-step explanation:

So first you have do the parentheses, (2+5) = 7

Then do the exponents 7^{2} 7.7 = 49

Next do the Multiplying 49.5= 214

Finally Subtract 284-214=70

<em>I Hope This Helps You :)</em>

Luda [366]2 years ago
4 0

Answer:

39

Step-by-step explanation:

284-5(7)²

284-(5×49)

284-245

39

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Bubble algae cells can grow up to 5 cm in diameter. Calculate the surface area : volume ratio of this cell.
Mars2501 [29]

Answer:

6:5

Step-by-step explanation:

Bubble algae cells can grow up to 5 cm in diameter. Calculate the surface area : volume ratio of this cell.

The algae is spherical in nature

Volume of the algae =4/3 pi r³

Volume of the algae = 4/3×pi×2.5³

Volume of the algae = 62.5/3 pi

Surface area = 4pi r²

Surface area = 4pi ×2.5²

Surface area = 25pi

Taking their ratio

surface area : volume ratio

= 25pi:62.5/3 pi

= 25 × 3/62.5

= 1.2

Hence the required ratio is 12/10 which is 6:5

4 0
3 years ago
PLEASE NEED HELP ASAP WILL GIVE 50 POINTS
iogann1982 [59]

Answer:

x = 32

Step-by-step explanation:

This is an equilateral triangle, all three sides equal.  Since all three sides are equal, all three angle are equal.  180/3 = 60.  That means each angle is equal to 60 degrees.

2x-4 = 60

Add 4 to each side

2x-4+4 = 60+4

2x =64

Divide each side  by 2.

2x/2 = 64/2

x = 32

7 0
3 years ago
Help help help ASAP
STatiana [176]

Answer:

x=-8

Step-by-step explanation:

Subtract 2 from both sides

Simplify

Multiply all terms by the same value to eliminate fraction denominators

Cancel multiplied terms that are in the denominator

Subtract 2x from both sides

Simplify

8 0
2 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME ON NUMBER 3
boyakko [2]

Answer:

36

Step-by-step explanation:

5 0
3 years ago
Which of the following is a solution of 12 x - 7 &gt; 6?<br><br> -1<br> 0<br> 1<br> 2
Mkey [24]

Answer:

The answer to your question is "2"

Step-by-step explanation:

Data

       12x - 7 > 6

Process

1.- Add +7 in both sides of the inequality

       12x - 7 + 7 > 6 + 7

2.- Simplify

       12x >  13

3.- Divide by 12 both sides

         12x/12 > 13/12

                 x > 13/12    or   x >  1.08  

4.- Conclusion

     All the numbers higher than 1.08 are solutions of this inequality

    Then, from the choices, the only possible solution is 2.                          

5 0
3 years ago
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