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leva [86]
3 years ago
9

What is 7/4 plus -1/2 plus 2/3? And what’s the answer

Mathematics
1 answer:
vichka [17]3 years ago
4 0

Answer:

1.85

Step-by-step explanation:

1.75-0.5+0.6= 1.85 or 1 17/20

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A car travels 32 km due north and
xenn [34]

Answer:

73.2km

Step-by-step explanation:

first you have to decompose 46 km into y and x components.

x=sin40°*46km

x=0.64*46km

x=29.44km

y=cos40°*46km

y=0.76*46km

y=34.96

now you add the y components together

32+34.96=66.98

finally use Pythagorean thereom to find the resultant vector.

a*a+ b*b=c*c

66.98*66.98+29.44*29.44=c*c

c*c= 4486.3+866.7

c=√5353

c=73.2 km this is the approximate value

6 0
3 years ago
A complex electronic system is built with a certain number of backup components in its subsystems. One subsystem has four identi
irakobra [83]

Answer:

do you have answer choice

Step-by-step explanation:

4 0
3 years ago
simplify the expression write your answer as a complex number. three square root of 16 plus square root of - 9​
german

Answer:

\large\boxed{3\sqrt{16}+\sqrt{-9}=12+3i}

Step-by-step explanation:

3\sqrt{16}+\sqrt{-9}\\\\\sqrt{16}=4\ \text{because}\ 4^2=16\\\\\sqrt{-9}=\sqrt{(9)(-1)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\=\sqrt9\cdot\sqrt{-1}=(**)\\\sqrt9=3\ \text{because}\ 3^2=9\\\sqrt{-1}=i\\(**)=3i\\\\3\sqrt{16}+\sqrt{-9}=(3)(4)+3i=12+3i

5 0
4 years ago
At the airport during a 24 hour period 1,440 passengers through the terminal.what is the unit rate of passenger flow?
Naddik [55]
Unit rate = Number of Passengers / Time
 
               =  1440 / 24 = 60 passengers / hour.

4 0
4 years ago
Hi<br><br> What is a constant of proportionality?
lisabon 2012 [21]

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.

Step-by-step explanation:

5 0
3 years ago
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