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damaskus [11]
2 years ago
9

Whose procedure is correct? keisha’s procedure is correct. david’s procedure is correct. both procedures are correct. neither pr

ocedure is correct.
Mathematics
1 answer:
8_murik_8 [283]2 years ago
6 0

Both procedures are correct. Because the end answer and the step-by-step explanation are right.

<h3>What is the procedure?</h3>

It is a step-by-step explanation of the equations. The procedure is important

It explains the sequence of actions and specifies what has to be done at each stage, frequently specifying when and by whom the procedure should be conducted.

The end answer for Keisha's solution is;

\rm cos \theta =± \frac{15}{17}

The end answer for David's solution is;

\rm cos \theta =± \frac{15}{17}

Hence both procedures are correct. Because the end answer and the step-by-step explanation are right.

To learn more about the procedure refer to the link;

brainly.com/question/14553685

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What is m∠CDE?
BigorU [14]

Answer:

45°

Step-by-step explanation:

Angle CDE is half of a right angle

1. 90°/2 = 45°

6 0
3 years ago
Mr. George has a bank balance of -42 dollars at the start of the month. After he deposits 6 dollars, the new balance is (with fu
OLga [1]

Answer:

$-36

Step-by-step explanation:

-42+6

-36

5 0
3 years ago
A student walks 2 miles to get to school if she walks at an average of 3 miles per hour , how many minutes should it take her to
Maru [420]
Ok so TIME= distance/ speed
So u divide now 2 by 3 = 0.66
So 0.66 HOURS you have to change it to minutes so u multiply by 60 which is 39.6 minutes. I wish it was helpful
6 0
3 years ago
Read 2 more answers
Which is not an equation of the line going through (3, -6) and (1, 2)?
777dan777 [17]

Answer:

B, C

Step-by-step explanation:

The equation of a line can be given by y -y₁= m(x -x₁), where m is the slope. This is also known as the point-slope form.

\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }

Slope of the line

=  \frac{2 - ( - 6)}{1 - 3}

=  \frac{2 + 6}{ - 2}

= \frac{8}{ - 2}

= -4

<em>Substitute m= -4 into the equation:</em>

y -y₁= -4(x -x₁)

<em>Substitute a pair of coordinates into (x₁, y₁):</em>

Let's start by substituting (1, 2).

y -2= -4(x -1)

This gives us the same equation as D, making D an incorrect option. Note that the question asks for which is not the correct equation.

Let's change the above into the slope-intercept form, where by y is the subject of formula.

<em>Start by expanding the right-hand side:</em>

y -2= -4x +1

<em>+</em><em>2</em><em> on both sides:</em>

y= -4x +3

This equation is not the same as C. C is thus the correct option.

Let's check for options A and B.

The equation in option B is not the correct equation either as they have substituted (2, 1) instead of (1, 2) into (x₁, y₁). Thus, option B is also correct.

y -y₁= -4(x -x₁)

Substitute (3, -6) into (x₁, y₁):

y -(-6)= -4(x -3)

y +6= -4(x -3)

This is the same as option A, making option A incorrect too.

4 0
2 years ago
How many 6-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, if repetitions of digits are allowed?
sveta [45]
There are 6 digits.  Each digit can take ten different numbers except for the first digit since it cannot be zero.

So:

9 x 10 x 10 x 10 x 10 x 10

900000 numbers.

Another way of thinking about this is to just count up to 999,999.  Obviously there are 999,999 different numbers here.  But since our number has to have 6 digits in them, we have to delete 99,999 numbers.  Thus there are 900,000 different numbers.
6 0
3 years ago
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