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4 years ago

Translate the following sentence to a mathematical equation.

Mathematics

2 answers:

Slav-nsk [51]4 years ago

5 0

N/3 = -8 (answer)

If you wish to solve this, mult. both sides by 3. Then n = -24 (qnswer)

Marat540 [252]4 years ago

3 0

It would be something like this x/3 = -8
it doesn't matter what variable you use x is just most common

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Find the x and y for numbers 2 and. 3 thank you

OLEGan [10]

Answer:

(0, 4 ) and (2, - 4 )

Step-by-step explanation:

(2)

3x + 4y = 16 → (1)

- 3x + 2y = 8 → (2)

Adding (1) and (2) term by term will eliminate the x- term

0 + 6y = 24

6y = 24 ( divide both sides by 6 )

y = 4

Substitute y = 4 into either of the 2 equations and solve for x

Substituting into (1)

3x + 4(4) = 16

3x + 16 = 16 ( subtract 16 from both sides )

3x = 0 , then

x = 0

solution is (0, 4 )

(3)

2x - 4y = 20 → (1)

5x + 4y = - 6 → (2)

Adding (1) and (2) term by term will eliminate the y- term

7x + 0 = 14

7x = 14 ( divide both sides by 7 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (2)

5(2) + 4y = - 6

10 + 4y = - 6 ( subtract 10 from both sides )

4y = - 16 ( divide both sides by 4 )

y = - 4

solution is (2, - 4 )

5 0

3 years ago

What is the domain of this function?

Free_Kalibri [48]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

4 in. 8. 6.7x = 5.2x + 12.3 11 2(n-3) = 4n+1 What is the answer?

hichkok12 [17]

2nd equation is -7/2

7 0

4 years ago

Which of the following statments are true of the graph of the function f(x) = (x + 5)(x - 3). Select all that apply. pleaseee he

xeze [42]

Answer:

B, D, and E.

Step-by-step explanation:

We are given the graph:

$f(x)=(x+5)(x-3)$

We can expand the equation into standard form:

$f(x)=x^2+2x-15$

Since the leading coefficient is positive, our parabola curves up. Hence, it has a relative minimum.

The x-intercepts of a function is whenever y = 0. Hence:

$0=(x+5)(x-3)$

Zero Product Property:

$x+5=0\text{ or } x-3=0$

Solve:

$x=-5\text{ or } x=3$

So, our x-intercepts are (-5, 0) and (3, 0).

The y-intercept occurs when x = 0. Hence:

$f(0)=(0+5)(0-3)=-15$

So the y-intercept is (0, -15).

The axis of symmetry is given by:

$\displaystyle x=-\frac{b}{2a}$

In this case, from standard form, a = 1, b = 2, and c = -15. Hence:

$\displaystyle x=-\frac{2}{2(1)}=-1$

Our axis of symmetry is -1.

Therefore, the correct statements are B, D, and E.

8 0

3 years ago

find the unknown number in the following proportion. round your answer to the nearest hundredths if necessary check your answer

taurus [48]

X would be equal to 14.44

8 0

3 years ago