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2 years ago

5

Is -57.5 a interger

1 answer:

Svetlanka [38]2 years ago

8 0

Integers are positive or negative whole numbers, so no fractions or decimals.

-62, and 32/4 are integers.

32/4 is an integer because it simplifies to 8.
-57.5 is not an integer because it has a decimal.

Hope this helps!

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Write an equation in two variables in the standard form that can be used to describe the velocity of the car at different times.

ira [324]

Velocity of the car is equal to the distance travelled by the time spent.

If V= velocity, d = distance & time = t, then

the equation becomes V=d/t

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3 years ago

32% of 300 is what number?

Wewaii [24]

Answer:

96

Four options to solve:

1. 32% of 300 = 96

<em>OR</em>

2. 32% × 300 = 96

<em>OR</em>

3. 0.32 × 300 = 96

<em>OR</em>

4. $\frac{32}{100}$ × 300 = 96

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2 years ago

A. Ecuación ordinaria, radio y ecuación general de la circunferencia con centro en (2,0) y tangente a la recta 4x+3y+7=0

Alexandra [31]

A is the answer my friend

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2 years ago

Graph a parabola whose x-intercepts are at x=-3 and x=5 and whose minimum value is y=-4

docker41 [41]

Answer:

(See explanation for further details)

Step-by-step explanation:

The standard equation of the parabola is:

$y + 4 = C \cdot (x-k)^{2}$

The formula is now expanded into a the form of a second-order polynomial:

$y + 4 = C\cdot x^{2} -2\cdot C\cdot k \cdot x +C\cdot k^{2}$

$y = C\cdot x^{2} - (2\cdot C \cdot k) \cdot x + (C\cdot k^{2}-4)$

The general equation of the second-order polynomial is:

$x = \frac{2\cdot C \cdot k \pm \sqrt{4\cdot C^{2}\cdot k^{2}-4\cdot C\cdot (C\cdot k^{2}-4)}}{2\cdot C}$

$x = k \pm \frac{\sqrt{C^{2}\cdot k^{2}-C^{2}\cdot k^{2}+4\cdot C}}{C}$

$x = k \pm 2\cdot \frac{\sqrt{C}}{C}$

$x = k \pm \frac{2}{\sqrt{C}}$

The equations to be solved are presented herein:

$-3 = k -\frac{2}{\sqrt{C}}$

$5 = k + \frac{2}{\sqrt{C}}$

Now, the solution of the system is:

$-3 +\frac{2}{\sqrt{C}} = 5 -\frac{2}{\sqrt{C}}$

$\frac{4}{\sqrt{C}} = 8$

$\sqrt{C} = \frac{1}{2}$

$C = \frac{1}{4}$

$k = 5 - \frac{2}{\sqrt{\frac{1}{4} }}$

$k = 1$

The equation of the parabola is:

$y = \frac{1}{4}\cdot (x-1)^{2} -4$

Lastly, the graphic of the function is included as attachment.

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2 years ago

Last question from this huge packet (more than 20 questions). Will somebody help me please. I have Science to do after this.

brilliants [131]

The correct answer is D

8 0

3 years ago

Read 2 more answers