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Alona [7]
3 years ago
11

Please don’t answer if geometry isn’t your forte - geometry

Mathematics
2 answers:
fiasKO [112]3 years ago
5 0
X=46.542 feet
You can round X...
leonid [27]3 years ago
3 0

Answer:

46.5

Step-by-step explanation:

I used the sine formula

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PLEASE HELP, IM BEING TIMED!
Svetlanka [38]

Answer:

Option A is correct .

Step-by-step explanation:

if in a question it is given that BC is equal to AB then only we can do like that...

3 0
3 years ago
Read 2 more answers
Determine the number of degrees of freedom for the two-sample t test or CI in each of the following situations. (Round your answ
gulaghasi [49]

Answer:

Part a ) The degrees of freedom for the given two sample non-pooled t test is 24

Part b ) The degrees of freedom for the given two sample non-pooled t test is 30

Part c ) The degrees of freedom for the given two sample non-pooled t test is 30

Part d ) The degrees of freedom for the given two sample non-pooled t test is 25

Step-by-step explanation:

Degrees of freedom for a non-pooled two sample t-test is given by;

Δf = {[ s₁²/m + s₂²/n ]²} / {[( s₁²/m)²/m-1] + [(s₂²/n)²/n-1]}

Now given the information;

a) :- m = 12, n = 15, s₁ = 4.0, s₂ = 6.0

we substitute

Δf =  {[ 4²/12 + 6²/15 ]²} / {[( 4²/12)²/12-1] + [(6²/15)²/15-1]}

Δf  = 30184 / 1241

Δf  = 24.3223 ≈ 24 (down to the nearest whole number)

b) :- m = 12, n = 21, s₁ = 4.0, s₂ = 6.0

we substitute using same formula

Δf = {[ s₁²/m + s₂²/n ]²} / {[( s₁²/m)²/m-1] + [(s₂²/n)²/n-1]}

Δf = {[ 4²/12 + 6²/21 ]²} / {[( 4²/12)²/12-1] + [(6²/21)²/21-1]}

Δf = 56320 / 1871

Δf = 30.1015 ≈ 30 (down to the nearest whole number)

c) :- m = 12, n = 21, s₁ = 3.0, s₂ = 6.0

we substitute using same formula

Δf = {[ s₁²/m + s₂²/n ]²} / {[( s₁²/m)²/m-1] + [(s₂²/n)²/n-1]}

Δf = {[ 3²/12 + 6²/21 ]²} / {[( 3²/12)²/12-1] + [(6²/21)²/21-1]}

Δf = 29095 / 949

Δf = 30.6585 ≈ 30 (down to the nearest whole number)

d) :- m = 10, n = 24, s₁ = 4.0, s₂ = 6.0

we substitute using same formula

Δf = {[ s₁²/m + s₂²/n ]²} / {[( s₁²/m)²/m-1] + [(s₂²/n)²/n-1]}

Δf = {[ 4²/10 + 6²/24 ]²} / {[( 4²/10)²/10-1] + [(6²/24)²/24-1]}

Δf = 1044 / 41  

Δf = 25.4634 ≈ 25 (down to the nearest whole number).

6 0
3 years ago
Amelia measured the elementary school and made a scale drawing. The scale of the drawing was 11 mm, 4 m. If the schoolyard is 48
cestrela7 [59]

Answer:

176

Step-by-step explanation:

every 11 mm in the drawing equals 4m.

every 1 mm in the drawing equals 4/11 m

Actual size of school yard = 484*4/11 = 176m

3 0
2 years ago
Help me pleaseeeeeeeeeeeeeeeeeeeee
zzz [600]

Answer:

c) (-3s) - 9

Step-by-step explanation:

(-5s) + 2s - 9

-5s + 2s - 9 <== combine like terms

-3s - 9

Therefore, our answer is c.

Hope this helps!

8 0
2 years ago
Read 2 more answers
Evaluate for the given value of the variable 1/2 X s for s = 3/10
Pani-rosa [81]
Just plug in the equation, 1/2*3/10 and multiply it out. Thus, 1*3=3 and 2*10=20
and the answer is 3/20.
8 0
2 years ago
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