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4 years ago

The statement 2n^2+5n-25=0 opens up because

1 answer:

4 0

The graph of 2n^2 +5n -25 opens up because the coefficient of n^2 is positive.

____
The statement 2n^2 +5n -25 = 0 defines two values of n.

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What s the equation for y= (0,2) slope= -3/7

masya89 [10]

The standard form equation for a straight line is y=mx+b where m is the slope and b is the y intercept. Substitute your given information:
y= -3/7x+2 is the equation

5 0

4 years ago

What number must you add to complete the square?<br> x^2 + 12x = 16

dmitriy555 [2]

Answer: B. 36

The complete square is (x+6)^2. It's missing the third term, which is 36 because 6 x 6 is 36.

7 0

4 years ago

Read 2 more answers

What is the product of 7/16 and -6/13 I will make you the brainlest

mr_godi [17]

Answer:

$\frac{7}{16} *\frac{-6}{13} = \frac{-42}{208}$

Step-by-step explanation:

$\frac{7}{16} *\frac{-6}{13} = \frac{-42}{208}$ . First multiply 7*-6=-42.

Then do 16*13=208.

Simplify by dividing both by 2.

You get $\frac{-42}{208}=\frac{-21}{104}$ .

Your final simplified answer is $\frac{-21}{104}$

I hope this helps!

5 0

3 years ago

The position of a particle moving in a straight line at any time t is x(t) = 2t^2 + 6t + 5. What is the acceleration of the part

grandymaker [24]

Answer:

The acceleration of the particle at any time t

$a = 4\ m/s^{2}$

Step-by-step explanation:

Given:

The position of a particle moving in a straight line at any time t is.

$x(t) = 2t^{2} + 6t + 5$

The velocity of the particle $v = \frac{d(x)}{d(t)}$

$v = \frac{d}{d(t)}(2t^{2} + 6t + 5)$

$v= 2\times 2t + 6$

$v= 4t + 6$

So the velocity of the particle $v= (4t + 6)\ m/s$

The acceleration of the particle $a = \frac{d(v)}{d(t)}$

$a = \frac{d}{d(t)}(4t + 6)$

$a = 4\ m/s^{2}$

In this condition the acceleration does not depending upon the time, so the acceleration is constant

Therefore the acceleration of the particle at any time t $a = 4\ m/s^{2}$

7 0

3 years ago

F(t) = 2t - 3 f(7) =

max2010maxim [7]

Answer:

f(7) = 11

Step-by-step explanation:

<em>t</em> = 7, so we can just plug in the value 7 for (t) in the given equation.

f(t) = 2t - 3

f(7) = (2 × 7) - 3

f(7) = 14 - 3

f(7) = 11

8 0

3 years ago