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nikdorinn [45]
3 years ago
9

12 ÷ 2 1/4 pleaseee​

Mathematics
1 answer:
Vlada [557]3 years ago
5 0

Answer:

The answer is 5\frac{1}{3} .

Step-by-step explanation:

Given:

12 ÷ 2 1/4

Now, to solve it.

12\div 2\frac{ 1}{4}

So, convert the mixed fraction into improper:

=12\div \frac{9}{4}

Now, we convert the divisions symbol into multiplication which makes the fraction into reciprocal:

=12\times \frac{4}{9}

=\frac{48}{9}

Dividing numerator and denominator by 3 we get:

=\frac{16}{3}

Now, changing the resulting improper fraction into mixed:

=5\frac{1}{3}

Therefore, the answer is 5\frac{1}{3} .

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Evaluate the discriminant of the equation. Tell how many solutions each equation has and whether the solutions are real or imagi
cupoosta [38]

Answer:

D=-4<0, the equation has no real solutions, it has two imaginary solutions.

Step-by-step explanation:

The quadratic equation x^2 +4x+5=0 has coefficients

a=1,

b=4,

c=5.

The discriminant D is the expression

D=b^2-4ac.

Hence,

D=4^2-4\cdot 1\cdot 5=16-20=-4

Since the discriminant is negative, the equation has no real solutions, it has two imaginary solutions.

4 0
3 years ago
Read 2 more answers
what is the slope of the line given by the equation y=-1/3x? Enter your answer as an integer or fraction in lowest terms.
Rzqust [24]
The slope of the line would be -1/3

5 0
3 years ago
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The graph below shows the velocity f(t) of a runner during a certain time interval:
Jlenok [28]
For this case, the first thing we must do is take into account the definition of the axes:
 the x axis is time in seconds
 the y axis is velocity in meters per secon
 
 Then, we look for the cut point with the y axis, which is given by:
 (0, 2)
 This means that the initial speed is 2 m / s.
 
 We now look for the cut point with the x axis, which is given by:
 (8, 0)
 This means that the speed is 0 m / s, so the runner stopped when the time is 8 seconds.

 Answer:
 
The initial velocity of the runner was 2 m / s, and the runner stopped after 8 seconds.
5 0
3 years ago
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I need help please I’m struggling
Aloiza [94]

Answer:

It is first answer

Step-by-step explanation:

3 0
4 years ago
Factor completely 5ax2 − 20x3 2a − 8x. (a 4x)(5x2 2) (a 4x)(5x2 − 2) (a − 4x)(5x2 2) (a − 4x)(5x2 − 2).
antiseptic1488 [7]

The complete factor of the polynomial 5ax² − 20x³ + 2a − 8x is (5x² + 2) (y − 4x). Then the correct option is C.

<h3>What is polynomial?</h3>

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Factor completely 5ax² − 20x³ + 2a − 8x.

Take 5x² common from the first two terms and 2 from the last two terms. we have

5ax² − 20x³ + 2a − 8x

5x²(a − 4x) + 2 (a − 4x)

Take (a - 4) common, then we have

(5x² + 2) (y − 4x)

The complete factor of the polynomial 5ax² − 20x³ + 2a − 8x is (5x² + 2) (y − 4x). Then the correct option is C.

More about the polynomial link is given below.

brainly.com/question/17822016

8 0
3 years ago
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