3 years ago

Which is equivalent to 243 Superscript two-fifths? 3 6 9 12

Mathematics

2 answers:

Katyanochek1 [597]3 years ago

6 0

Answer: Answer is 9

Step-by-step explanation:

Vikki [24]3 years ago

4 0

Answer:

the answer to this question is C. 9

Step-by-step explanation:

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The probability of a golden retriever catching a tennis ball in mid-air is 78%. Find the probability that a golden retriever cat

Salsk061 [2.6K]

To find the probability, we do 78% to the third power, which is 0.474552 or when rounded 0.475

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3 years ago

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I need help asap with this

tatyana61 [14]

Answer:

51°

Step-by-step explanation:

Given

<QPR = 39°

<PQR = 90° ( inscribed angle in semi circle)

Now

<QPR + <PQR + <PRQ = 180° { being sum of angles of triangle)

39° + 90° + <PRQ = 180°

<PRQ = 180° - 39° - 90°

<PRQ = 51°

Hope it will help :)

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Lilit [14]

2.24 should be correct

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3 years ago

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Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4

Snowcat [4.5K]

Answer:

The answer is the option B

$-4,-14$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}+18x+81=25$

$x^{2}+18x+56=0$

$a=1\\b=18\\c=56$

substitute in the formula

$x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}$

$x=\frac{-18(+/-)\sqrt{100}} {2}$

$x=\frac{-18(+/-)10} {2}$

$x1=\frac{-18+10} {2}=-4$

$x2=\frac{-18-10} {2}=-14$

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4 years ago

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You build 7 model airplanes during the summer. At the end of the summer, you have 25 model airplanes. How many model airplanes d

zimovet [89]

Answer:

Step-by-step explanation:

You have 25 when you are done, but you made 7, so subtract that from 27.

25-7 equals 18.

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