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ValentinkaMS [17]
3 years ago
5

PLEASE HELP RIGHT AWAY!!!!!

Mathematics
1 answer:
Cloud [144]3 years ago
4 0

Answer:

1) 46.6

Step-by-step explanation:

Given Data:

s1 of Triangle ABC= 4cm

s2 of Triangle ABC=6cm

s3 of Triangle ABC=8cm

As per the side-side-side SSS of a given triangle

the corresponding angles are found by the following law of cosine formula

cos A = (b2 + c2 − a2) / 2bc

Putting the values we get

cos A= (4^2+8^2-6^2)/2(4)(8)

cos A= (16+64-36)/64

A=cos^-0.6875

A=46.57!

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Find the length of BC¯¯¯¯¯¯¯¯
Sergeeva-Olga [200]

Answer:

B

Step-by-step explanation:

I love trig lol,

Assuming you know trig, Cos(17)=BC/42

Cos(17)*42=BC

Cos(17)~0.956

0.956*42=40.152=BC

Since this is a approximation, B is the closest to our estimate.

7 0
2 years ago
Given that
bonufazy [111]

Answer:

10.5 gallons

Step-by-step explanation:

48000 cm3 = 48 litres (1 litre = 1000 cm3)

Therefore if 1 litre = 1.75 pints then 48 litres = 48 x 1.75 = 84 pints.

Finally if 8 pints = 1 gallon

then 84 pints = (84 x 1) / 8 = 10.5 gallons

8 0
3 years ago
Find the distance between the two points in simplest radical form.<br> (-9,5) and (0,0)
7nadin3 [17]

Answer:

\sqrt{106} units

Step-by-step explanation:

Calculate the distance d using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 9, 5)

d = \sqrt{(-9-0)^2+(5-0)^2}

   = \sqrt{(-9)^2+5^2}

   = \sqrt{81+25}

    = \sqrt{106}

 

3 0
3 years ago
D=-16t^2-4t+382 What is the answer to this? Please help!!!!
CaHeK987 [17]
D equals 38.2  I think because t equals 9.55. You would add -16t with -4t and get -20t. Which would turn into D=-20t^2+382. Since you can't multiply 2 with -20t, you would divide it by 382 which would be 191. D=-20t+191 with this, you would subtract 191 from +191 which would cancel out and it would turn the problem into -191=-20t. You would divide -20 from itself and -191 and get t=9.55. Then you plug t where it was in the problem and then you get that D=38.2. I hope my answer is right and it helps you.




5 0
3 years ago
Bill bowled 3 games at a bowling alley and rented shoes, spending a total of $9.00. LeAnn bowled 5 games at the bowling alley an
Vladimir [108]

Answer:

The answer is D

Step-by-step explanation:

7 0
3 years ago
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