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3 years ago

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Mathematics

1 answer:

Kryger [21]3 years ago

5 0

What is Tark
I’m sry I can’t help you

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If you wanted to shift the graph of y = 3x + 8 down, which equation could you use?

Rudik [331]

You could change the y intercept to something less than positive eight.

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3 years ago

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If a certain cannon is fired from a height of 8.8 meters above the ground, at a certain angle, the height of the cannonball ab

Dennis_Churaev [7]

Answer:

It would take approximately 6.50 second for the cannonball to strike the ground.

Step-by-step explanation:

Consider the provided function.

$h(t)=-4.9t^2+30.5t+8.8$

We need to find the time takes for the cannonball to strike the ground.

Substitute h(t) = 0 in above function.

$-4.9t^2+30.5t+8.8=0$

Multiply both sides by 10.

$-49t^2+305t+88=0$

For a quadratic equation of the form $ax^2+bx+c=0$ the solutions are: $x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Substitute a = -49, b = 305 and c=88

$t=\frac{-305+\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}=-\frac{-305+\sqrt{110273}}{98}\\t = \frac{-305-\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}= \frac{305+\sqrt{110273}}{98}$

Ignore the negative value of t as time can't be a negative number.

Thus,

$t=\frac{305+\sqrt{110273}}{98}\approx6.50$

Hence, it would take approximately 6.50 second for the cannonball to strike the ground.

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3 years ago

Help pleeeeaaaaassseeeeeee my brain hurts QwQ

Sergeeva-Olga [200]

Answer:

G. Division Property of Inequality

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What is the x-intercept of the equation y = 2/3x + 12? Please explain each step for better understanding, thank you:)

VARVARA [1.3K]

Answer:

(-18, 0)

Step-by-step explanation:

The x intercept has a y value of 0. So, to find the x intercept, plug in 0 as y into the equation, and solve for x:

y = 2/3x + 12

0 = 2/3x + 12

-12 = 2/3x

-18 = x

So, the x intercept is (-18, 0)

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3 years ago

Can someone please help, ty!!<br> (Will mark brainliest)

Shkiper50 [21]

I believe its Yellow

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3 years ago