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liq [111]
3 years ago
15

Completing the square worksheet

Mathematics
1 answer:
kipiarov [429]3 years ago
5 0
What worksheet ? I cant see anything
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I have no idea please help
melamori03 [73]
22. Alternate angles

23. 4: (h_{b} = 2 \frac{a}{b}, substitute b with 10 and a with 20 and you get 4.)

24. 0.28: 0.12 + 0.60 = 0.72. Probability is always out of 1, so 1 - 0.72 should give you the probability of losing, which is 0.28. 
8 0
3 years ago
If an object is launched at an angle of 28° with an initial velocity of 133 ft./s from a height of 6 feet how many seconds will
Tema [17]

Answer:

Hence after  3.98 sec  i.e  4 sec Object will hit the ground  .

Step-by-step explanation:

Given:

Height= 6 feet

Angle =28 degrees.

V=133 ft/sec

To Find:

Time in seconds after which it will hit the ground?

Solution:

<em>This problem is related to projectile motion for objec</em>t

First calculate the Range for object  and it is given by ,

R=v^2Sin(2Ф)/g

Here R= range  g= acceleration due to gravity =9.8 m/sec^2

1m =3.2 feet

So 9.8 m, equals to 9.8 *3.2=31.36 ft

So g=31.36 ft/sec^2. and 2Ф=2(28)=56

R=133^2*Sin(56)/31.36

R=14664.84/31.36

R=467.62  fts

Now using Formula for time and range as

R=VxT

Vx is horizontal velocity

Vx=V*cosФ

Vx=133*cos(28)

Vx=117.43  ft/sec

So above equation becomes as ,

467.62=117.43*T

T=467.62/117.43

T=3.98 sec

T is approximately equals to 4 sec.

4 0
3 years ago
Layla used 0.482 grams of salt in her experiment. Maurcie use 0.51 grams of salt. Who used the greater amount of salt?
Montano1993 [528]
All you do is look at the first number and see which is greater than you will get your answer glad to help btw if you cant get it it's Maurice
7 0
3 years ago
Read 2 more answers
I got 1.3k points somehow so im feeling nice<br> giving 50 points+brainliest to the first answer
kotykmax [81]

Answer: HI ; ) Im ready......Okay whats the question?

Step-by-step explanation:

3 0
2 years ago
Add the fractions simplify your answer 2 7/8 + 2 3/8
Mashutka [201]

Answer:

5 1/4 or 21/4

7 0
3 years ago
Read 2 more answers
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