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melomori [17]
3 years ago
7

In how many minutes will a heart beat in 140 times?

Mathematics
2 answers:
matrenka [14]3 years ago
7 0
The answer is 5 minutes
s2008m [1.1K]3 years ago
5 0
The answer is about 3 minutes!
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Steve is rolling a six-sided number cube. what is the probability of the cube landing on a six?​
chubhunter [2.5K]

Answer:

1/6

Step-by-step explanation:

Space = {1,2,3,4,5,6}

n(S) = 6

A = Event of getting 6 = {6}

n(A) = 1

P(getting six) = n(a)/n(S) = 1/6

5 0
3 years ago
I need help with 3,4,5<br> Please!!
gladu [14]
3. g(x) = x^2 - 5x + 3
    g(-3) = -3^2 - 5(-3) + 3
    g(-3) = 9 + 15 + 3
    g(-3) = 27 <==

4. 4(7b + 15f - 8f) =
    4(7b + 7f) =
     28b + 28f <===

5. C = 2.50r + 15
    for 5 rolls...r = 5
    C = 2.50(5) + 15
    C = 12.50 + 15
    C = 27.50...its A
3 0
3 years ago
Each year, the Department of Water Works measures the chloride concentration level in the water. The first year, they found the
Ulleksa [173]
<span>-3 2/3 total change occurrence.</span>
5 0
4 years ago
Read 2 more answers
Use set builder notation to represent the following set. {... -3, -2, -1, 0} {x | x Z, x ≤ 0} {x | x N, x ≤ 0} {x | x R, x ≤ 0}
IceJOKER [234]

Answer:

\boxed{\boxed{\left\{x\ |\ x\ \epsilon\ Z,\ x \le 0}\right\}}}

Step-by-step explanation:

Set builder notation-

It is a notation for representing a set by enumerating its elements and stating the properties that its members must satisfy.

The given set is,

\left \{.... -3, -2, -1, 0 \right \}

This set is comprised of all negative integers. So symbol Z should be used in this case.

The set builder notation for this set is,

\left\{x\ |\ x\ \epsilon\ Z,\ x \le 0}\right\}

7 0
4 years ago
Can someone help. Please
KonstantinChe [14]

Answer:

Answer below       Please give brainliest!!  

Step-by-step explanation:

Sue Black:  8x5=40 hours    40 x $6.75 = $270


Jerry Atrix:  7.25 + 3 + 6.75 + 8 + 5 = 30 hours

                    30 x $5.15 = $154.50


Sam Ting:  7.75 x 5 = 38.75 hours

                 38.75 x $8.75 = 339.0625 = $339.06

5 0
4 years ago
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