3 years ago

Can someone check my answers and if their wrong explain how to get the correct answer

Mathematics

1 answer:

Charra [1.4K]3 years ago

8 0

Answer: 1. Correct, 2. Incorrect 90° angle not 80° angle answer is 50, 3. Is correct, 4. Is correct

Step-by-step explanation:

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the electric bill in may was $248.00 in june the bill was $265.00 what is the percent of increase rounded to the nearest hundred

lions [1.4K]

265-248=17
(17/248)x100=6.854838
round that to the nearest hundredth is 6.85%
which is a

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3 years ago

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Taya2010 [7]

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4 years ago

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Kazeer [188]

Answer:

A hope this helps

Step-by-step explanation:

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3 years ago

Given the position function s(t), s(t) = t3 - 5t, where s is measured in meters and t is in seconds, find the velocity and accel

Fantom [35]

Answer:

Step-by-step explanation:

given s(t) = t³ - 5t then

v(t) = s'(t) = 3t² - 5 and

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3 years ago

Solve the quadratic by factoring.<br> x^2-5x-31=5

torisob [31]

Answer:

$x = - 4\: or \: x = 9$

Step-by-step explanation:

make one side equal to zero:

${x}^{2} - 5x - 36 = 0$

find two factors that multiply to -36 and add to -5 (-9 & 4)

${x }^{2} - 9x + 4x - 36 = 0$

factorise

$x(x - 9) + 4(x - 9) = 0$

$(x + 4)(x - 9) = 0$

solve for x

$x = - 4 \: or \: x = 9$

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4 years ago