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3 years ago

Please help explain and solve angels homework

Mathematics

2 answers:

Nat2105 [25]3 years ago

8 0

Answer:

1. it's a right angle. therefore it has a total of 90°

to get the value of x we start with:

90° - 54° = 36°

(10X+16)°=36°

10X = 36 -16

10X = 20

X = 2

kipiarov [429]3 years ago

6 0

Answer:

Step-by-step explanation:

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Flying lessons on weekdays cost m dollars per hour. Flying lessons on weekends cost 1.2m dollars per hour. The expression 9m+3(1

lbvjy [14]

Answer:

The cost of lesson for 9 hours on weekdays and 3 hours on weekends

Step-by-step explanation:

Given

$Weekdays = \$m /hour$

$Weekends = \$1.2m/hour$

Required

What does 9m + 3(1.2m) represent

The expression can be split to:

9m and 3(1.2m)

For 9m:

From the question, we understand that:

$m = 1\ hour$

Multiply both sides by 9

$9 * m = 1\ hour * 9$

$9 m = 9\ hours$

This means that:

9m = the cost of lessons for 9 hours on weekdays

For 3(1.2m):

From the question, we understand that:

$1.2m = 1 \ hour$

Multiply both sides by 3

$3 * 1.2m = 1 \ hour * 3$

$3(1.2m) = 3 \ hours$

This means that:

3(1.2m) = the cost of lessons for 3 hours on weekends

Hence, the expression represents:

The cost of lesson for 9 hours on weekdays and 3 hours on weekends

7 0

2 years ago

In 2015, there were approximately 31,800 firearms fatalities. Express this quantity in deaths per hour

viva [34]

I could be wrong, but just divide 31,800 by 365 which would give you the number of fatalities each day, then divide that number by 24. that should give you the number of deaths in an hour. Again, could be totally wrong.

8 0

3 years ago

If x = 4 and y = -2, the value of 3 xy?

Anton [14]

Answer:

-24

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

1!+2(2!)+3(3!)+...+n(n!)=(n+1)!-1

anyanavicka [17]

Step-by-step explanation:

OK, let's assume it this way:

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!=(2.1!-1!)+(3.2!-2!)+(4.3!-3!)+...+((n-1)n!-n!)=(2!-1!)+(3!-2!)+(4!-3!)+

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!=(2.1!-1!)+(3.2!-2!)+(4.3!-3!)+...+((n-1)n!-n!)=(2!-1!)+(3!-2!)+(4!-3!)+...+(n+1)!-n!=(n+1)!-1!=(n+1)!-1

and boom problem solved

7 0

2 years ago

Simplify each expression.

Vikki [24]

Answer:

is number 3

Step-by-step explanation:

see explanation on the attached

hope it helps

8 0

2 years ago