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3 years ago

How many permutations exist of the letters a, b, c, d taken four at a time?

1 answer:

3 0

There are 24 permutations.

The number of permutations of 4 objects taken 4 at a time is given by
4!/(4-4)! = 4!/0! = 4!/1 = 4! = 24

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Mark the congruent parts of the triangles and complete the proof

eimsori [14]

1) given

2) definition of an angle bisector

3) reflexive

4) $\triangle ABD \cong \triangle CBD$ (ASA)

5) $\angle A \cong \angle C$ (CPCTC)

3 0

1 year ago

Angles BAE and FAC are straight angles. What angle relationship best describes angles BAC and EAF?Adjacent anglesComplementary a

Natalka [10]

The best angle relationship that describes angles BAC and EAF is supplementary angles

The sum of angle on a straight line is supplementary i.e. they sum up to 180 degrees.

If Angles BAE and FAC are straight angles, it means they are linear pairs and their sum is 180 degrees. Mathematically;

m<BAE + m<FAC = 180degrees

Hence we can conclude that the best angle relationship that describes angles BAC and EAF is supplementary angles

Learn more here: brainly.com/question/22309882

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2 years ago

Ace autos sell cars and pay sue each month as follows

Dima020 [189]

Sue's total pay of year will have three parts

1) Fixed Salary for 12 months

one month salary = £1410

so 12 month salary = £1410 x 12 = £16920

2) 26% of total profit

Total cost to the company- £473,500

Total income for the company - £549,000

Profit = Total income for the company - Total cost to the company

= £549,000 - £473,500 = £75500

Sues income from profit = 26% of £75500 = (26 × 75500)/100 = £19630

3) Bonus if Sue sells at least 16 cars

Given number of months when sue solds atleast 16 cars = 4

So bonus income = 4 × 390 = £1560

Adding the three above parts

Sue's total pay for the year = £16920 + £19630 + £1560 = £38110

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3 years ago

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JulsSmile [24]

Answer:22

Step-by-step explanation:

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Aleksandr-060686 [28]

Answer: where is the figure tot he right???

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2 years ago