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Anna11 [10]
3 years ago
9

You score an 84 on the first of two exams. Write and solve an equation to find the score x that you need on the second exam to h

ave a mean score of 92.
Mathematics
1 answer:
avanturin [10]3 years ago
6 0

its 76 i think

i told my teacher and she it was true

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The height H metres of a ball projected upwards t seconds after being projected is given by H=64t - 16t². Find it's initial velo
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Answer:

initial velocity = 64 m/s

Step-by-step explanation:

Differentiate H = 64t - 16t² to find an equation for velocity:

Velocity = \frac{dH}{dt} = 64 - 32t

Initial velocity (u) is when t = 0:

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⇒ u = 64 - 0

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Isolate the variable by dividing each side by factors that don't contain the variable.

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sesenic [268]

Answer:

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AND

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Step-by-step explanation:

-The triangle might be an equilateral triangle (having all the same sides and angles). False, since the triangle sum theorem states that all angles inside of a triangle must add up to 180, so an equilateral triangle would need to have all three angles at 60 degrees.

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3 years ago
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Troyanec [42]

Answer:

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Question order asks ratio from outside time to inside time so the 40 would come first. also, all the above are correct. You can write a ratio as a fraction, with a colon, or with the word to.

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Step-by-step explanation:

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