3 years ago

Help with this please

Mathematics

1 answer:

Arisa [49]3 years ago

3 0

Answer:

180-132 = 48

C. 48 degrees

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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. A rocket is launched from atop a

umka2103 [35]

When it hits the ground, then h=0
find the xintercept or in this case the tintercepts
c=76
v=135

h=-16t^2+135t+76
use quadratic formula

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=-16
b=135
c=76

x= $\frac{-135+/- \sqrt{135^2-4(-16)(76)} }{2(-16)}$
x= $\frac{-135+/- \sqrt{18225+4864} }{-32}$
x= $\frac{-135+/- \sqrt{23089} }{-32}$
aprox
x=-0.5297 or 8.967
exclude the negative root since you can't have negative time

means that it takes 8.97 seconds to hit the ground

4 0

3 years ago

Please help and explain if you can. I don't get this stuff :/ (Will give brainiest answer is correct, if possible)

Gnoma [55]

To start off, you need to take the cube root of both sides of the equation.
$\sqrt[3]{x} = \frac{ \sqrt[3]{27} }{ \sqrt[n]{64} }$
The cube root of 27 is 3, and the cube root of 64 is 4.
The answer would then be x=3/4

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3 years ago

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I am out of tries so sad :(

Luba_88 [7]

Answer:

omg ikr

Step-by-step explanation:

very sad 2

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2 years ago

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The range of all real numbers x such that 2x − 5 < 7 OR 4x + 10 > 6 is___

scoray [572]

First, simplify the two inequalities.

2x - 5 < 7
2x < 12 <-- Add 5 to each side
x < 6 <-- Divide both sides by 2

4x + 10 > 6
4x > -4 <-- Subtract both sides by 10
x > -1 <-- Divide both sides 4

Now we have the compound inequality x < 6 OR x > -1

To fulfill the first inequality, x has to be less 6. For the second inequality, x has to bigger than -1.

So, the answer is B. (-infinity, infinity).

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3 years ago

Helpp i’m confused !!!!

pshichka [43]

Answer:

Step-by-step explanation:

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3 years ago

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