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Drupady [299]
3 years ago
10

An electronic devise beeps every 4 seconds. Another devise beeps every 6 seconds if they both start beeping at the same time how

many seconds will it be before the next time they beep together
Mathematics
1 answer:
Nat2105 [25]3 years ago
4 0
Answer:

3

Explanation:

The smallest whole number that 4 and 6 share when multiplied is 12
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Use the discriminant to describe the roots of each equation. Then select the best description.16x2 + 8x + 1 = 0double rootreal a
SSSSS [86.1K]

Hello!

The discriminant of quadratic functions is: b² - 4ac. Since the equation is in standard form, which is Ax² + Bx + C = 0 , we can substitute those values into our discriminant and simplify.

The value of the discriminant will tell us how many solutions there are to the given quadratic equation.

A positive discriminant will have two real solutions.

A discriminant of zero will have one real solution.

A negative discriminant will no real solutions.

1. Substitute, a = 16, b = 8, c = 1.

8² - 4(16)(1)

64 - 4(16)(1)

64 - 64(1)

64 - 64

0

Since the discriminant is zero, the answer is choice A, double root, because since it is raised to the power of 2, it must has two roots, but in this case, both of the roots the same x-values.

3 0
3 years ago
AREA of circles pls help​
Ganezh [65]

Answer:

A=

π

r

2

=

π

3

2

≈

<u>28.27433</u>

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
El precio de un automovil $696.000 y se puede pagar de dos maneras distintas.
Svet_ta [14]
I’m sorry i don’t speak Spanish!
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3 years ago
Jacob is a plumber. Due to increased material costs, he puts all his prices up by 7%. He now chargers R320 per hour for her serv
Lorico [155]

Answer:

R290.1

Step-by-step explanation:

Let

x = charge before he put his prices up

New charge = R320

Percentage increase in price = 7%

x + 7% of x = 320

x + 0.07 * x = 320

x + 0.07x = 320

1.07x = 320

x = 320/1.07

x = 299.06542056074

Approximately

x = R290.1

Charge before he put his prices up = R290.1

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2 years ago
To solve m/-2+11=14 what steps would you use
Butoxors [25]
M÷-2+11=4
m÷9=4
m=4*9
m=36
5 0
2 years ago
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