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3 years ago

What is the geometric interpretation of dividing the b-value by 2 while completing the square?

Mathematics

1 answer:

Masja [62]3 years ago

6 0

Answer:

solving a quaddratic equation

Step-by-step explanation:

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Frank's paper airplane glided 78.9 m. Sarah's plane glided 85 m. How many more centimeters did Sarah's plane glide? 1 m= 100 cm

Olegator [25]

Answer:

610 cm

Step-by-step explanation:

78.9 x 100 = 7890 cm 85 x 100 = 8,500 cm

8,500 - 7890 = 610 cm

4 0

2 years ago

Select the correct answer.

Colt1911 [192]

The answer is b 6a/b^7

5 0

3 years ago

A test consists of 100 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean a

TEA [102]

Answer: Mean = 20 and standard deviation = 4

Step-by-step explanation:

Let x represents the success of getting the correct answer.

Here, the total number of trials(n) = 100

The probability of getting the correct answer, p = 1/5

Thus, the mean of the number of correct answer,

$\mu_x= np$

$\mu_x= 100\times 1/5$

$\mu_x= 20$

Now, the standard deviation, $\sigma_x= \sqrt{n\times p\times (1-p)}$

$\sigma_x= \sqrt{100\times 1/5\times 4/5}$

$\sigma_x= \sqrt{16}$

$\sigma_x= 4$

Thus, First option is correct.

6 0

3 years ago

Which shape has at least one 1 right angle

Finger [1]

What do squares, rectangles, and right triangles have in common? They all contain at least one right angle!

What shape has at least one right angle?

rectangle

A rectangle is a four-sided shape where every angle is a right angle (90°). Also, the opposite sides are parallel and of equal length.

6 0

3 years ago

Read 2 more answers

Solve for x..................

Lostsunrise [7]

7x - 9 < 12
7x < 12 + 9
7x < 21
x < 21/7
x < 3

1/4x + 8 > 11
1/4x > 11 - 8
1/4x > 3
x > 3 * 4
x > 12

solution : x < 3 or x > 12

8 0

3 years ago