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ICE Princess25 [194]
3 years ago
6

IM SOOOO STUCKKKK HELLPPPPPPPPPPP!!

Mathematics
2 answers:
KonstantinChe [14]3 years ago
3 0

Answer:

18

Step-by-step explanation:

x² = 16² + 30² - 2(16)(30)cos 30°

x² = 256 + 900 - 960(0.866)

x² = 1156 - 831.36

x² = 324.64

x = 18.02

Approx. 18

Please mark my answer as brainliest

kykrilka [37]3 years ago
3 0

Answer:

18.01

Step-by-step explanation:

c^2=a^2+b^2-2abcos 30=

   = 16^2+30^2-2(16)(30)(cos30)             cos30=0.866

   = 1156-480√3 = 324.6156

c=√324.6156=18.01

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How do you do this??
astra-53 [7]

welll...you have there written just one relationship...it is berween 280 and 4 hours...you have to figure out speed:

280 \div 4 = 70

it is speed per hour

then you just connect time and speed:

  1. 140 - 2
  2. 280 - 4
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6 0
3 years ago
Ex plane how knowing 50 x 4 = 200 helps you find 500 x 400
Alex777 [14]

Answer:

Step-by-step explanation:

if you know 50*4=200, you must also know that 50*10=500 and that 4*100=400 so 500*400= 50*10*4*100

multiplication is comutative so

50*4*10*100=200*1,000= 200, 000

8 0
3 years ago
Read 2 more answers
if you have 89 apples and you take 72 away and buy 14 more and take 12 away then buy 42 more and give them 16 more
Delicious77 [7]

Answer:

The correct answer is that there will be 45 remaining apples.

Step-by-step explanation:

So, you start off with 89 and then you take 72 away, that leaves you with 17 apples. Then, you buy 14 more which brings it up to 31. After that, you give 12 more away which brings your total down to 19. Next, you go out and buy 42 more, which adds up to  61 remaining apples. Finally, you give away 16 more, which brings you to a grand total of, 45 apples left.

Hope this helps!

Rate 5 star and give brainliest!

5 0
3 years ago
16 mm = cm 4 7/8 13/4
Alekssandra [29.7K]

Answer:

1 cm  6mm

Step-by-step explanation:

10mm=1cm

3 0
3 years ago
Gustavo's bicycle cost $171.18 after a sales tax of 8%. write and solve an equation to find the price of the bike before the sal
Kryger [21]
Let x =  price of the bike before a sales tax.

The price after a sales tax of 8% is
x + 0.08x = 1.08x dollars

Because the price paid was $171.18, therefore
1.08x = 171.18
x = 171.18/1.08 = $158.50

Answer: 158.50


3 0
3 years ago
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