1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
torisob [31]
3 years ago
10

WILL MARK BRAINIEST FOR FIRST PERSON TO ANSWER WITH THE STEPS

Mathematics
1 answer:
kondaur [170]3 years ago
7 0

Answer:

  a. 1.2 ohms

  b. 6 ohms

Step-by-step explanation:

As with any problem involving evaluation of a formula, substitute the given values for the corresponding variables and do the arithmetic.

a.

  R=\dfrac{1}{\dfrac{1}{R_1}+\dfrac{1}{R_2}}=\dfrac{1}{\dfrac{1}{2}+\dfrac{1}{3}}=\dfrac{1}{\left(\dfrac{5}{6}\right)}=\boxed{\dfrac{6}{5}=1.2}

__

b.

  R=\dfrac{1}{\dfrac{1}{R_1}+\dfrac{1}{R_2}}=\dfrac{1}{\dfrac{1}{10}+\dfrac{1}{15}}=\dfrac{1}{\left(\dfrac{5}{30}\right)}=\dfrac{30}{5}=\boxed{6}

_____

<em>Comment on these problems</em>

You will notice that the values in part (b) are 5 times those in part (a). So, it is no surprise that the answer in part (b) is 5 times the answer in part (a).

You might be interested in
Evaluate the expression 8x - 10 when x = 4
serg [7]
Answer: 8(4) - 10 equals to 22 :)
4 0
3 years ago
Read 2 more answers
Which figure has two circular faces?
Vladimir79 [104]

Answer:

Figure A

Step-by-step explanation:

Hope it helps.

7 0
3 years ago
Read 2 more answers
The price of a new car is $42,500 if the sales tax rate is 6% then how much sales tax is being charged?
Slav-nsk [51]

Answer:$48230 that will be your answer

Step-by-step explanation:$42,500+65=$48230

7 0
2 years ago
Read 2 more answers
Plss solve this problem... will mark brainiest
Sonja [21]

Answer:

87.97 or 88

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help.. 10 points
Leokris [45]

Answer:

z = 55.15432893

x = 59.61543424

y = 22.5166605

Step-by-step explanation:

To find length "z" you will have to use SOHCAHTOA.

Labelling the triangle will show us that the side marked "z" is the hyp and the side marked 39 is the opp.

sin 45 = \frac{39}{z}

z sin 45 = 39

         z  = \frac{39}{sin45}

         z = 55.15432893

Using Pythagoras' theorem, you can find that the adj = 39

In the other triangles POV, the adj is actually the opp.

Therefore, use tangent to find y.

tan 60 = \frac{39}{adj}

y tan 60 = 39

           y = \frac{39}{tan60}

           y = 22.5166605

Use Pythagoras's Theorem to find x.

23^{2} + 55^{2} = x^{2}\\\sqrt{23^{2} + 55^{2}}  = x\\59.61543424=x

3 0
3 years ago
Other questions:
  • 24. To what fraction is the arrow pointing to
    10·1 answer
  • Write an equation of the line that is parallel to y = 1/2x + 3 and passes through the point (10, -5).
    13·1 answer
  • Which has the greatest absolute value?<br> a. -15<br> b. 25<br> c. -40<br> d. 10
    7·1 answer
  • A baseball stadium has 38,496 seats. Round to the nearest thousand , how many seats is this
    12·2 answers
  • If a ball is dropped, how long does it take to fall 60.0 m?
    12·2 answers
  • Round 128.599 to 3 decimal places
    5·1 answer
  • Need help with this question
    14·1 answer
  • A2 + b2 = n2 because of the
    9·2 answers
  • If the crane operator works 30 years and the train engineer works 33 years, who makes the most lifetime income? How much more?
    12·1 answer
  • 4. Use the graph for the following:<br><br> Please answer<br> Picture is included
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!