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bonufazy [111]
3 years ago
8

Work out the lengths of sides a and b. Give your answers to 1 decimal place.

Mathematics
1 answer:
torisob [31]3 years ago
3 0

Step-by-step explanation:

{a}^{2}  =  {8}^{2}  +  {5}^{2}  \\  {a }^{2}  = 64 + 25 \\  {a}^{2}  = 89 \\ a =  \sqrt{89}  = 9.4 \: cm

{17}^{2}  =  {12}^{2}  +  {b}^{2}  \\  {b}^{2}  =  {17}^{2}  -  {12}^{2}  \\  {b}^{2}  = 289 - 144 \\  {b}^{2}  = 145 \\ b = 12 \: cm

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Helen plays basketball. For free throws, she makes the shot 78% of the time. Helen must now attempt two free throws. C = the eve
riadik2000 [5.3K]

Answer:

0.6708 or 67.08%

Step-by-step explanation:

Helen can only make both free throws if she makes the first. The probability that she makes the first free throw is P(C) = 0.78, now given that she has already made the first one, the probability that she makes the second is P(D|C) = 0.86. Therefore, the probability of Helen making both free throws is:

P(C+D) =  P(C) *P(D|C) = 0.78*0.86\\P(C+D) = 0.6708

There is a 0.6708 probability that Helen makes both free throws.

5 0
3 years ago
MATH<br><br>Answer and I will give you brainiliest <br>Answer and I will give you brainiliest <br>​
Triss [41]

Answer:

I don't now this but you should do pemdas that really helped me

Step-by-step explanation:

The first step is perthansies  then exponents and then multiplication then division and last addition and subtraction that should give you your answer.

7 0
3 years ago
Please help with this question with steps I'll give brainliest!<br><br> Thanks
harina [27]

Answer:

∠ 1,3,5,7 = 32°

∠2,4,6,8,= 148°

Step-by-step explanation:

From the figure attached,

AB and CD are two parallel lines and another transverse line is intersecting these line at two distinct points.

Since, m∠1 = 32°,

∠1 and ∠4 are supplementary angles [Linear pair of angles]

m∠1 + m∠4 = 180°

32° + m∠4 = 180°

m∠4 = 180° - 32°

m∠4 = 148°

therefore,

m∠1,3,5,7 = 32°

m∠2,4,6,8,= 148°

6 0
3 years ago
Tickets to a movie cost $5 for adults and $3 for students. A group of friends purchased 18 tickets for $82.00. How many adults t
TEA [102]

Answer:

They purchased 14 adult tickets and 4 kids tickets.

Step-by-step explanation:

14 x 5 = 70

3x4=12

and then add 70 plus 12 to get 82 dollars.

7 0
3 years ago
Carnival M charges an entrance fee of $5.00 and $0.50 per ticket for rides. Carnival P charges and entrance fee of $7.00 and $0.
Kryger [21]

For both Carnivals to have the same cost, 10 tickets will have to be purchased.

Carnival M :

Entrance fee = $5.00

Cost per ticket = $0.50

Carnival P :

Entrance fee = $7.00

Cost per ticket = $0.30

Let the Number of ticket = n

Cost of n Carnival M tickets :

5 + 0.50n - - - (1)

Cost of n Carnival P tickets :

7 + 0.30n - - - (2)

Value of n in other to have the same price :

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5 + 0.50n = 7 + 0.30n

Collect like terms

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Divide both sides by 0.20

n = 2 / 0.20

n = 10

Therefore, 10 tickets has to be purchased for both Carnivals to have the same cost.

Learn more : brainly.com/question/18796573

5 0
2 years ago
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