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3 years ago

Simplify

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Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

Answer:

$i3 \sqrt{8}$

Step-by-step explanation:

$\sqrt{ - 72} \\ \sqrt{ - 1} \times \sqrt{72} \\ \sqrt{ - 1} \times \sqrt{9} \times \sqrt{8} \\ i3 \sqrt{8}$

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Please help!! fully simplify <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B300%7D%2B%5Csqrt%7B27%7D-%5Csqrt%7B

bija089 [108]

Answer:

The answer is 2

Step-by-step explanation:

Multiply the numerator and denominator by the conjugate.

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3 years ago

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A square has a perimeter of 40cm what is the length of each side

docker41 [41]

Answer:

length of each side : 10 cm

Step-by-step explanation:

all sides of squares are equal

thus, 4 sides = 40 cm

1 side = 40/10 cm

1 side = 10 cm

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2 years ago

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Please help! Which box plot represents a set of data that has the greatest mean absolute deviation? (see attached image)

djyliett [7]

Answer:

the 2nd is the answer

Step-by-step explanation:

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3 years ago

Show work and explain with formulas.

Juli2301 [7.4K]

20 Answer: a₁ = 4

Step-by-step explanation:

$a_n=324,\ r=3,\ n=5\\\\a_n=a_1 \cdot r^{n-1}\\\\324=a_1\cdot 3^{5-1}\\\\\dfrac{324}{3^4}=a_1\\\\\dfrac{324}{81}=a_1\\\\\large\boxed{4}=a_1$

21 Answer: n = 13

Step-by-step explanation:

$a_n=\dfrac{1}{64},\ a_1=64,\ r=\dfrac{1}{2}\\\\a_n=a_1 \cdot r^{n-1}\\\\\dfrac{1}{64}=64\cdot \bigg(\dfrac{1}{2}\bigg)^{n-1}\\\\\dfrac{1}{64\cdot 64}=\bigg(\dfrac{1}{2}\bigg)^{n-1}\\\\\dfrac{1}{2^6\cdot 2^6}=\dfrac{1}{2^{n-1}}\\\\6+6=n-1\\\\\large\boxed{13}=n$

22 Answer: n = 5

Step-by-step explanation:

$a_n=48,\ a_1=1875\ r=\dfrac{2}{5}\\\\a_n=a_1 \cdot r^{n-1}\\\\48=1875\cdot \bigg(\dfrac{2}{5}\bigg)^{n-1}\\\\\dfrac{48}{1875}=\bigg(\dfrac{2}{5}\bigg)^{n-1}\\\\\dfrac{16}{625}=\bigg(\dfrac{2}{5}\bigg)^{n-1}}\\\\\bigg(\dfrac{2}{5}\bigg)^4=\bigg(\dfrac{2}{5}\bigg)^{n-1}}\\\\4=n-1\\\\\large\boxed{5}=n$

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3 years ago

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Solve the quadratic by quadratic formula below x squared-14x=-49

lubasha [3.4K]

X^2-14x+49=0

Factor
(x-7)(x-7)

Check
-7-7=-14
-7*-7=49

Use ZPP
x-7=0
x=7

Final answer: x=7

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3 years ago

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