3 years ago

How many distinct arrangements are possible using the word CHEER

1 answer:

7 0

You are talking about Arrangement.

So answer will be A(5,5) - C(5,2) = 110.

Reason to deduce C(5,2) is that E is a duplicate.

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Can someone help me with this thanks

Ugo [173]

The length of the brace required is 4.3m

What is sine rule?

In a ΔABC a, b and c are the sides and A, B and C are angles then,

$\frac{a}{SinA}=\frac{b}{sinB}=\frac{c}{sinC}$

We can find the length, l as shown below:

Let AB=3m, BC=2m and AC=l

Let ∠A=25°

So, in ΔABC

$\frac{BC}{sinA}=\frac{AB}{sinC}=\frac{AC}{SinB}$

$\frac{BC}{sinA}=\frac{AB}{sinC}$

$\frac{2}{sin25}=\frac{3}{sinC}$

$\angle{C}=sin^{-1}(\frac{3\times sin25}{2} )$

∠C=39.34°

∠A+∠B+∠C=180°

∠B=180°-25°-39.34°

∠B=115.66°

$\frac{BC}{sinA}=\frac{AC}{SinB}$

$\frac{2}{sin25}=\frac{l}{sin(115.66)}$

$l=\frac{2\times sin(115.66)}{sin25}$

l=4.2659

Rounding to nearest tenth of meter.

l=4.3m

Hence, the length of the brace required is 4.3m

Learn more about Sine Rule here:

brainly.com/question/25852087

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8 0

1 year ago

Please rewrite 5x − 15y = − 60 in the slope intercept form

Margarita [4]

Basically solve for y
minus 5x fromboth sides
-15y=-5x-60
divide both sides by -15
y=1/3x+4

4 0

3 years ago

Mr Conover bought 6 boxes of Patel for his art class. He paid $4.50 for each box. What was the total cost of the box

slava [35]

4.50×6=27.00. the total cost of the box will be $27.00

3 0

3 years ago

Start time: 3:30 PM<br> End time: 7:00 PM<br> Elapsed time:

JulijaS [17]

Answer:

3hr 30min

Step-by-step explanation:

3hr 30min

5 0

3 years ago

A tank can be filled by one pipe in four hours and by a second pipe in six hours; and when it is full, the tank can be drained b

just olya [345]

12 hours..........
+ - = 1
Multiply by 12 to clear the fractions
3t + 2t - 4t = 12
t = 12 hrs to fill the pool

3 0

2 years ago

Read 2 more answers