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vova2212 [387]
3 years ago
10

Evaluate 2 4ac if b = 5, a = -2, and c = 0​

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
7 0

Answer:0

Step-by-step explanation:2 4ac

2×4×-2×0=0

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What is 5/2 times x equals 1
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Lol use a calculator Answer:

Step-by-step explanation:

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Ancient slingshots were made form straps of leather that cradled a rock until it was released. One would spin the slingshot in a
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We separate equation by looking at x and y projection separately. 
Let us look at the x projection first.
Motion starts with initial velocity v_0cos(45) because there is no force acting along the x-axis we don't have any acceleration along the x-axis.  Our equation would be:
x=v_0cos(45)\cdot t
Now our y equation will be a little bit more complicated. There is gravity working against our projectile and we also have to take into effect the hight from which the projectile is launched.
With all that in mind let us write the equation for y projection:
y=h+v_0sin(45)\cdot t-g \frac{t^2}{2}
The term -g \frac{t^2}{2} represents gravity and as you can see it is negative, which means gravity is pulling our projectile down. 
There is one more thing we can do. We can express initial velocity v_0 in relation to circular motion used to launch the projectile.
v_0=w\cdot r
Where r is the length of the letter used to launch the projectile, and w is angular velocity.  
If we combine our x and y equations we can get the trajectory of our projectile.
y=h+x- \frac{gx^2}{2\cdot (wr)^2cos^2(45)}
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8 0
3 years ago
Read 2 more answers
Raymond sings in a choir called the Seaville Songbirds. For every 5 modern songs they learn, the choir leader teaches them 3 cla
lutik1710 [3]

Answer:

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Step-by-step explanation:

it is probably 12 thank you

7 0
3 years ago
I really need help please.......
PIT_PIT [208]
Here, I'll have a try:
This expression is the multiplication of a binomial and a trinomial.. The binomial has two terms, while the trinomial has three terms. Use the distributive property of multiplication, 
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step 3, simply every multiplication 
step 4, add up like trms
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3 years ago
The line representing a proportional relationship always goes through the point (0,0). If x is zero, multiplying x by the consta
Sidana [21]

Answer:

B (2, 4)

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

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so

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therefore

The other point is B(2.4)

Because

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4=2(2)\\4=4

3 0
3 years ago
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