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faltersainse [42]
3 years ago
15

Mario's heart beats 72 times per minute. how many times does it beat in a year. answer in standard form correct to 2 significant

figuires
Mathematics
2 answers:
klemol [59]3 years ago
7 0
You would do 60 seconds multiplied by 24 hours in a day which would be 1440 beats then you would multiply by the number of days in a year which is 365 then you would get the awnser of  525,600 beats per year.
Natali5045456 [20]3 years ago
6 0
IT WILL BE 525969.2 MINUTES IN A YEAR SO 72*525969.2 IS 37869782.4
 HOPE I HELPED
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Under his cell phone plan, Elijah pays a flat cost of $64.50 per month and $5 per gigabyte. He wants to keep his bill at $87.50
photoshop1234 [79]
Gotta go stingy by adding 64.5 us 87.5
6 0
2 years ago
R^3 +4r^2-25r-100<br><br> Help
Marina86 [1]

Answer:

The zeroes in this equation are -5, -4, and 5

Step-by-step explanation:

In order to find these, you need to factor by splitting. For this, we separate out the two halves of the equation and pull out the greatest common factor of each. Let's start with the front end.

r^3 + 4r^2

r^2(r + 4)

Now the second half.

-25r - 100

-25(r + 4)

Since what is left in the parenthesis are exactly the same, we can use that parenthesis next to one with what we pulled out.

(r^2 - 25)(r + 4)

And we can further factor the first parenthesis using the difference of two squares

(r^2 - 25)(r + 4)

(r + 5)(r - 5)(r + 4)

Now that we are fully factored, set each parenthesis equal to 0 and solve for x.

r + 5 = 0

r = -5

r - 5 = 0

r = 5

r + 4 = 0

r = -4

7 0
3 years ago
Which expression is equivalent to 5x-30?<br> A. 5(x-30)<br> B. 5(x-6)<br> C. 5x(x-6)<br> D. x(5-30)
maxonik [38]
The answer is B because 5 times x is 5x and 5 times 6 is 30. Since there is a subtraction sign, it would be equal to 5x-30
7 0
3 years ago
Read 2 more answers
3. Evaluate a + b for a = -46 and b= 34.<br> A:-12<br> B:80<br> C:-80<br> D:12
blsea [12.9K]

Answer:

<h2>A: -12</h2>

Step-by-step explanation:

Put the values of a = -46 and b = 34 to the expression a + b:

-46 + 34        <em>use the commutative property a + b = b + a</em>

= 34 + (-46) = 34 - 46 = -12

4 0
3 years ago
The graph of was shifted 5 units down and 4 units to the left. What is the equation of the resulting graph?
marysya [2.9K]

Answer:

5x+4

Step-by-step explanation:

use the equation mx+b I think this is right but I really dunno

8 0
3 years ago
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