3 years ago

Plz answer the question

2 answers:

8 0

1/6 of 30 is 5 questions. Combine 1/5 of the questions with it which is another 6 so she got 11 questions wrong. The answer is 19

Bumek [7]3 years ago

3 0

24 were of the questione were correct

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Expand x^3 minus y^3

Lubov Fominskaja [6]

Answer:

$x^{2}$ - $y^{2}$

(x-y)( $x^{2}$ + xy + $y^{2}$ )

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3 years ago

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Solve 4sin^2 x-3=0 find two values of sinx that satisfy this equation

Leviafan [203]

$4 sin^{2} x-3=0 \\ 4 sin^{2} x=3 \\ sin^{2} x= \frac{3}{4} \\ sinx= \pm \sqrt{ \frac{3}{4} } \\ sinx= \frac{ \sqrt{3} }{2} \ or \ sinx=- \frac{ \sqrt{3} }{2} \\ x= \frac{ \pi }{3} , \ \frac{2 \pi }{3} , \ \frac{4 \pi }{3} , \ \frac{5 \pi }{3}$

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3 years ago

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Ksju [112]

Answer:

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I hope this answer help you

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3 years ago

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Assume the equation has a solution for z.<br> -cz+ 6z = tz + 83<br>z=?

solong [7]

Answer:

z = 83 / (- c + 6 - t)

Step-by-step explanation:

Given:

-cz+ 6z = tz + 83

z=?

-cz+ 6z = tz + 83

Collect like terms

-cz+ 6z - tz = 83

Factorize

z(- c + 6 - t) = 83

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z(- c + 6 - t) / (- c + 6 - t) = 83 / (- c + 6 - t)

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3 years ago

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Svet_ta [14]

Answer:

4cm

Step-by-step explanation:

28 + 28 = 56

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