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3 years ago

What is the smallest angle of rotational symmetry for a square?

Mathematics

2 answers:

nlexa [21]3 years ago

7 0

The smallest will be 90 degree

Gemiola [76]3 years ago

7 0

Answer:90

Step-by-step explanation:

i got it right on the test :) good luck

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Need help!! algebra!!!

vampirchik [111]

Answer:

Step-by-step explanation:

7 0

3 years ago

-185 = -5 - 9b How to find the answer to this problem above?

balu736 [363]

Answer:

b=20

Step-by-step explanation:

-185-5=9b

-180=9b

=>b= -20

4 0

2 years ago

A law firm has eleven male and ten female lawyers. A committee of five, two male lawyers and three female lawyers, is to be chos

4vir4ik [10]

Making sellection of a smaller group from a larger group is doe by combinations.
Here, two male lawyers are to be chosen from eleven male lawyers and three female lawyers are to be chosen from ten female lawyers.

The numbers of ways to choose r objects from n objects is given by
$^nC_r= \frac{n!}{(n-r)!r!}$

Thus,
$^{11}C_2= \frac{11!}{(11-2)!\times2!} = \frac{11!}{9!\times2!} = \frac{11\times10\times9!}{9!\times2\times1} =11\times5=55$

Also,
$^{10}C_3= \frac{10!}{(10-3)!\times3!} = \frac{10!}{7!\times3!} = \frac{10\times9\times8\times7!}{7!\times3\times2\times1} =10\times4\times3=120$

Therefore, possible number of committes = 55 x 120 = 6,600 committes.

4 0

3 years ago

Yoko made $15,000 in taxable income last year. Suppose the income tax rate is 15% for the first $850Cplus 19% for the amount ove

Verdich [7]

Answer:

$2510

Step-by-step explanation:

Amount of tax on $8500:

$8500*15/100 = $1275

Amount of income over $8500:

$15000 - $8500 = $6500

Amount of tax on $6500:

$6500*19/100 = $1235

Total tax is:

$1275 + $1235 = $2510

4 0

3 years ago

Whats the solution of 6x+18=12x.

Vadim26 [7]

Answer:

Step-by-step explanation:

6x + 18 = 12x

=> 18 = 12x - 6x

=> 18 = 6x

$= > x = \frac{18}{6}$

=> x = 3 (Ans)

6 0

3 years ago

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