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KengaRu [80]
3 years ago
8

How many wires are need to build a circuit A. one B.2 C.3 explain

Mathematics
1 answer:
anastassius [24]3 years ago
3 0
The answer is B. Two wires are needed
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Find the sum of two consecutive numbers of the smallest one is n − 2.
Zina [86]

Answer:

2n - 3

Step-by-step explanation:

(n-2) + (n-1) = 2n - 3

6 0
3 years ago
Solve each quadratic equation. Show your work. 14. (2x – 1)(x + 7) = 0 15. x2 + 3x = 10 16. 4x2 = 100
andreyandreev [35.5K]
14.  (2x - 1)(x + 7) = 0

Using the zero factor property, we know that either the first or second terms (or both) must be equal to 0 if their product is 0.  We can set each term equal to 0 to find the solutions:

2x - 1 = 0
2x = 1
x = 1/2

x + 7 = 0
x = -7

15.  x^{2} +3x=10

To solve this equation, you first need to set it equal to 0:

x^{2} +3x=10 \\ x^{2} +3x-10 = 0

Next, it can be factored:

x^{2} +3x-10 = 0 \\ (x+5)(x-2)=0

Finally, we can solve just like we did above:

x + 5 = 0
x = -5

x - 2 = 0
x = 2

16.  4x^2=100

First, you can simplify by dividing each side by 4:

4x^2=100 \\ x^2=25

Now, set the equation equal to 0:

x^2=25 \\ x^2-25=0

Next, factor:

x^2-25=0 \\ (x+5)(x-5)=0

Finally, find the solutions:

x + 5 = 0
x = -5

x - 5 = 0
x = 5
6 0
3 years ago
I need help with this question:(
vivado [14]
The answer is 8^18...
3*6 = 17 and the 8 stays the same
5 0
3 years ago
The measures of two complementary angles are (3y − 1)° and (4y + 7)°. Determine the value of y. (Type number only)
blondinia [14]

Answer:

y = 12

Step-by-step explanation:

Complementary angles sum to 90 , so

3y - 1 + 4y + 7 = 90

7y + 6 = 90 ( subtract 6 from both sides )

7y = 84 ( divide both sides by 7 )

y = 12

5 0
2 years ago
Complete the table for Lisa hike plzzz help ​
kipiarov [429]

Answer:

2/3, 1,2,4

Step-by-step explanation:

5 0
2 years ago
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