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NemiM [27]
3 years ago
9

What number should be added to both sides of the equation to complete the square?

Mathematics
1 answer:
Studentka2010 [4]3 years ago
5 0

Answer:

16

Step-by-step explanation:

Given

x² + 8x = 4

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(4)x + 16 = 4 + 16, thus

(x + 4)² = 20 ← equivalent equation

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What da answer to 5. and 6? help is needed please plzzzz​
denpristay [2]
5 is 130.48
6 is 826.66
7 0
3 years ago
HELP PLEASE!! VERY MUCH APPRECIATED!!
SOVA2 [1]

Answer:

1.3445367773335334434333233332

3 0
3 years ago
Triangle ABC is a right triangle what is the realationship between angles A and B
abruzzese [7]

Answer:

see explanation

Step-by-step explanation:

Complementary angles sum to 90°

∠A and ∠Bare complementary angles as they sum to 90°

59° + 31° = 90°

8 0
3 years ago
In a horse race with 5 horses, you make a bet by predicting the ranking of all 5 horses. Suppose you place your bet at random. W
lapo4ka [179]

Answer:

P( top two horses are predicted incorrectly in incorrect order)

= \frac{1}{2}

Step-by-step explanation:

In the horse race the outcome can be predicted in 5! = 120 ways.

Now suppose the top two horses were predicted incorrectly in incorrect order. Now, the  top horse can be predicted incorrectly in 4 ways.

Suppose the top horse was predicted to be in k-th position where k = 2, 3 ,4,5

so the second horse can be predicted to be in place from 1 to (k - 1)

So, the top two horses can be predicted  incorrectly in incorrect order

in \sum_{k =2}^{5}(k - 1) = 10 ways  

and for each prediction of the two the remaining horses may be predicted in 3! = 6 ways.

Hence ,

P( top two horses are predicted incorrectly in incorrect order)

= \frac{6 \times 10}{120}

=\frac{1}{2}

 

8 0
3 years ago
4 Points
Vladimir [108]

Answer:

35

Step-by-step explanation:

One is given the following function (y=3x+5). The given problem asks one to find the output of the function when the input is (10). Keep in mind, a general rule for dealing with functions is that, when present, the variable (x) represents the input. Whereas the variable (y) represents the output. Thus, if one were to substitute (10) in place of (x), and simplify: the result one would get is the output. Apply this idea to the given scenario:

y=3x+5

y=3(10)+5

y=30+5

y=35

4 0
3 years ago
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