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DanielleElmas [232]
3 years ago
9

A store manager would like to set the three digit code. How many possible three digit code choices does he have if he can pick d

igits from 0 to 9 with repetition allowed?
Mathematics
1 answer:
Shalnov [3]3 years ago
6 0

10 numbers for each digit

 so 10 x 10 x 10 = 1000

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Write an equation of a line containing (2, -3) and perpendicular to 3x+4y=14 answer
Sergio039 [100]

Answer:

Step-by-step explanation:

From the condition of perpendicularity, if two lines must be perpendicular to each other, the product of their gradient rather the slope must be equaled to ( -1 ).

Equation of a line ; y = mx+ c, where m1 is the gradient of the line and c us the point of intersection if the line on the y- axis.therefore, the equation

3x + 4y = 14, when re arranged, now becomes, 4y = -3x + 14, divide through by 4, gives, y = -3x/4 + 14.

Therefore, m1, = -3/4 and m2, = 4/3 going by the condition. Since the line passes through the coordinate of (2,3), where x = 2, and y = -3, then, substitute for x and y in y = mx+ c, minding the m2, to find C, therefore,

-3 = 4/3x2 + c. -3 = 8/3 +c

Multiply through by 3 to make it a linear equation,

-9 = 8 + 3c; -9 - 8 = 3c, -17= 3c

c = -17/3.Now substitute for c in the equation ,y = mx+ c, the equation now becomes, y = 4x/3 - 17/3. Therefore the new equation is

3y = -4x - 17.

7 0
3 years ago
What is (2a-1)(8a-5)
Umnica [9.8K]

Answer:

16a^{2} - 18a + 5

Step-by-step explanation:

1) Use the grid method to expand the two brackets

2) Collect like terms

3) Form the statement!

(See attached image)

Download pdf
5 0
3 years ago
A circle is a set of all points that are the same distance from one given point. Find an wxample that cotradicts this definition
eduard

Answer:

Part A

The given definition of a circle is the set of all points that are the same distance from one given point

One example that contradicts the definition, is the set of all points in a three dimensional plane which are equidistant from, a point, which is the definition of a sphere

Part B

The definition of a circle can be modified to include the location of the points <em>on the same plane</em>, from which we therefore have;

<em>A circle is a set of all points on a plane that are the same distance from one given point</em>

Step-by-step explanation:

7 0
3 years ago
the sides of a rectangle are in the ratio 2:5. if the longer side of the rectangle is 25.5 in., what are it's width, perimeter,
Ad libitum [116K]

Answer: The width of the rectangle is 10.2 inches, the perimeter is 71.4 inches,  the area is 260.1 inches.

Step-by-step explanation:

25.5/5=5.1

5.1*2=10.2

The width is 10.2 inches

25.5*2+10.2*2=71.4

The perimeter is 71.4 inches

20.5*10.2=260.1

The area is 260.1

6 0
3 years ago
Strat time 3:30 pm end time 7:00 pm what is the elapsed time.
Sergeeva-Olga [200]

Answer:

3 hrs. 30 mins.

Step-by-step explanation:

7:00 - 3:30

4 0
3 years ago
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