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3 years ago

What is 8 2/3 - 1 3/10

Mathematics

2 answers:

just olya [345]3 years ago

5 0

7 11/30

Hope this helped!

agasfer [191]3 years ago

3 0

7 11/30

Hope this helped

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Can someone help please

marysya [2.9K]

I would say B. The mean is a good measure of central tendency.

I hope this helps!

6 0

3 years ago

Find z1z2 if z1 = 2/5(cos63° + isin63°) and z2 = 10/3(cos117° + isin117°).

Airida [17]

Answer:

-10/3 is the answer

Step-by-step explanation:

Given are two complex numbers as

$z1=\frac{2}{5} (cos63 + isin63)\\z2=\frac{10}{3} (cos 117 + isin117})$

Recall Demoivre theorem as

(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)

Hence here we have sum of angles as

A+B = 63+117 =180

$z1z2=\frac{2}{5} \frac{10}{3} (cos180+isin180)$

= $\frac{-10}{3}$

Since sin180=0 and cos 180=-1

7 0

4 years ago

Find the value of x

Ahat [919]

recall that a circle has a total of 360°.

so that missing central angle is then 360° - 110° - 65° - 90°. Well, the arc's angle measurement is the same as the central angle they're in, so the x° is the same as 360° - 110° - 65° - 90°.

4 0

3 years ago

Helppp its due nowwww

Irina-Kira [14]

Answer:

$9 x^4 y^6$

Step-by-step explanation:

Recall the Exponent Law:

$a^m \times a^n = a^{m +n}$

Solution:

$3x^2y^3 \times 3x^2y^3 \\ ( 3 \times 3 )x^{2 +2} y^{3 +3} \\ 9 x^4 y^6$

6 0

3 years ago

Read 2 more answers

30 coins consisting of quarters and dimes, which total is $5.70. How

Alex

Answer:

18 quarters

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers