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In-s [12.5K]
3 years ago
14

Pls help me or I’m gonna fail

Mathematics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

What is the question?

Step-by-step explanation:

All I evaluate from this is 40 have curfew and out of those 40, 35 have a smartphone, and 5 do not have a smartphone. 20 do not have curfew and out of those 20, 14 have a smartphone, and 6 do not have a smartphone.

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Which expression is equivalent to the given expression?
Feliz [49]
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3 years ago
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An object is launched from a launching pad 208 ft. above the ground at a velocity of 192ft/sec. what is the maximum height reach
loris [4]

Answer:

The maximum height is 784 feet

Step-by-step explanation:

In this problem we use the kinematic equation of the height h of an object as a function of time

h(t) = -16t ^ 2 + v_0t + h_0

Where v_0 is the initial velocity and h_0 is the initial height.

We know that

v_0 = 192\ \frac{ft}{sec}

h_0 = 208\ ft.

Then the equation of the height is:

h(t) = -16t ^ 2 + 192t +208

For a quadratic function of the form ax ^ 2 + bx + c

where a

the maximum height of the function is at its vertex.

The vertice is

x = -\frac{b}{2a}\\\\y = f(\frac{-b}{2a})

In this case

a = -16\\b = 192\\c = 208

Then the vertice is:

t = -\frac{192}{2(-16)}\\\\t = 6\ sec

Now we calculate h (6)

h(6) = -16(6) ^ 2 +192(6) +208\\\\h(6) = 784\ feet

The maximum height is 784 feet

8 0
3 years ago
Wats da anwser 4×70=4×7×_
Veseljchak [2.6K]
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What is 3log2 x-(log2 3-log2(x+4)) written as a single logarithm?
zloy xaker [14]
Answer:
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Explanation:
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Now, for the given we have:
3 log₂(x) - (log₂3 - log₂(x+4))
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log₂(\frac{x^2}{ \frac{3}{x+4} }) = log₂(\frac{x^2(x+4)}{3})

Hope this helps :)
3 0
3 years ago
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zhuklara [117]
This strategy works because if you subtract one number from another the sum of the two numbers should be the that is being subtracted from. (In this case, it's 200)
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3 years ago
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