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laila [671]
3 years ago
7

How many heartbeats are in 45 seconds​

Mathematics
1 answer:
Bas_tet [7]3 years ago
7 0

Answer:

about 56! since there are around 75 per min

Step-by-step explanation:

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How many times does the graph of 4x = 32 - x2 cross the x-axis ?
Molodets [167]

Answer:

x=4 orx=- 8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4

x

=

−

x

2

+

32

Step 2: Subtract -x^2+32 from both sides.

4

x

−

(

−

x

2

+

32

)

=

−

x

2

+

32

−

(

−

x

2

+

32

)

x

2

+

4

x

−

32

=

0

Step 3: Factor left side of equation.

(

x

−

4

)

(

x

+

8

)

=

0

Step 4: Set factors equal to 0.

x

−

4

=

0

or

x

+

8

=

0

x

=

4

or

x

=

−

8

5 0
3 years ago
Read 2 more answers
1/3 ( 3j + 6 ) = <br> what is the answer?
dsp73

Answer:

1/3(3j+6)= j+2

Step-by-step explanation:

Distribute

multiply

add

Hope this helps

8 0
3 years ago
Suppose a certain state university's college of business obtained the following results on the salaries of a recent graduating c
Lerok [7]

Answer:

Following are the responses to the given choice:

Step-by-step explanation:

For point a:

H_0: \mu_1 - \mu_2 = 0\\\\ H_1: \mu_1 - \mu_2 < 0

For point b:

t = -2.953

For point c:

\to  p- value = 0.0021

For point d:

Reject H_o. It could deduce that the pay of higher banking is considerably lower than the pay of higher project management.

7 0
3 years ago
Two plants, plant A and B, are being grown in a science experiment. Plant A is 6 cm tall and growing at a rate of 4 cm/day. Plan
Irina18 [472]
By the second day of growth
6 0
3 years ago
How do i do this? jshdjahs jt said 20 characters
Charra [1.4K]
Run around the circle until u think it’s right
6 0
4 years ago
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