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Nonamiya [84]
3 years ago
11

the sum of two rational numbers is 2/5. of one of the rational number is -3/7 then find the other rational number ​

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

-29/35

Step-by-step explanation:

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Divide and simplify to the form a+bi. 5+6i 5+6i 6+ i (Simplify your answer. Type an integer or a fraction. Type your answer in t
alekssr [168]

Answer:

-\frac{6}{37} + \frac{371}{37}i

Step-by-step explanation:

We need to evaluate \frac{(5+6i)(5+6i)}{6+i}

(5+6i)(5+6i) = (25 + 36i² + 60i) = (25 - 36 + 60i) = -11 + 60i

= \frac{-11+60i}{6+i}

Now we rationalize the denominator.

Now, multiplying both the numerator and denominator by (6-i)

\frac{-66 + 11i + 360i - 60i^2}{36 - i^2} = \frac{-66 + 60  + 371i}{37} = \frac{-6 + 371i}{37}

= -\frac{6}{37} + \frac{371}{37}i

Formula used:

(a+b)² = a² + b² + 2ab

i² = -1

6 0
4 years ago
Find the measures of the acute angle of the right triangle shown
Lyrx [107]

Answer:

x=32 degrees

hope this helps

3 0
3 years ago
12+5x-8=12x-10<br> Help me solve it step by step
9966 [12]
The first thing you want to do is combine like terms

4 + 5x = 12x -10

and make x on one side alone

14 = 7x


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The answer is 2
6 0
4 years ago
The velocity V of an object dropped from a tall building is given by V = V64d, where dis
ozzi

Answer:

d = 0.0625 m

Step-by-step explanation:

The velocity of an object dropped from a tall building is given by :

v=\sqrt{64d}

Where

d is the distance in feet

We need to find the distance when the velocity is 32 ft/s

Rearranging for d,

v^2=64d\\\\d=\dfrac{64}{v^2}

Put v = 32 ft/s

d=\dfrac{64}{32^2}\\\\d=0.0625\ m

So, the required distance is 0.0625 m.

5 0
3 years ago
I need help asap please i will mark you brainlist
mash [69]

Answer: B

Step-by-step explanation:

If an absolute value of a negative number plus a absolute value of the positive number is positive. Absolute value of anything is positive.

3 0
3 years ago
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