All categories

3 years ago

The access code for a vault consists of four digits. The first digit

Mathematics

2 answers:

Vikki [24]3 years ago

6 0

Answer:

5 * 10 * 10 * 9 = 4500

Step-by-step explanation:

nekit [7.7K]3 years ago

3 0

Answer:

4500

Explanation:

In photo ->

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Choose the equations which have a greater rate of change than the graph.

NemiM [27]

Option C: $y=\frac{3}{10} x$ is the equation that have a greater rate of change.

Explanation:

From the graph the coordinates are (0,0), (20,6), (40,12), (60,18) and (100,30)

We need to determine the rate of change.

The rate of change can be determined using the formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Substituting the any two coordinates in the formula, we get, the slope of the equation.

Let us substitute the coordinates (20,6) and (100,30)

Thus, we have,

$m=\frac{30-6}{100-20}$

Simplifying, we get,

$m=\frac{24}{80}$

Dividing, we get,

$m=\frac{3}{10}$

Also, the y - intercept of the equation is $b=0$

The equation of the line becomes $y=\frac{3}{10} x$

Thus, the equation that has a greater rate of change is $y=\frac{3}{10} x$

Hence, Option C is the correct answer.

4 0

4 years ago

BRAINIEST! HELP !The ratio of the base and height of a rectangle is 3 to 8. The perimeter of the rectangle is 138.6 cm. (6 point

steposvetlana [31]

B/h=3/8
8b=3h
8/3b=h
P=2(h+b)
P=138.6

138.6=2(h+b)
divide both sides by 2
69.3=h+b
suub (8/3)b for h
69.3=(8/3)b+b
times both sides by 3 to get rid of fraction
207.9=8b+3b
207.9=11b
divide both sides by 11
18.9=b

sub back

(8/3)b=h
(8/3)18.9=h
50.4=h

area=height times base
aera=50.4 times 18.9
aera=952.56 cm²

1. base=18.9 cm
2. height=50.4 cm
3. area=952.56 cm²

3 0

3 years ago

Two times a number x minus six times another number y is negative six.

Pie

Answer:

$2x-6y=6, 2x+5y=18$

Step-by-step explanation:

Translating the phrase into an equation, we get:

$2x-6y=6$

And:

$-2x+5y=18$

So the system of equations would be:

$2x-6y=6, 2x+5y=18$

If you want to put it into slope-intercept form, you can simplify both equations:

$2x-6y=6\\6y=2x-6\\y=\frac{1}{3}x-3$

$2x+5y=18\\5y=-2x+18\\y=-\frac{2}{5}x+\frac{18}{5}$

7 0

2 years ago

What is the greatest common factor for 20,and 45x

nadya68 [22]

<span>20: 1,2,4,5,10,20
45: 1,3,5, 9, 15,45
so five is the greatest common factor of 20 and 45x</span>

4 0

4 years ago

908,145,623,777 ten-millions place of this number.

nirvana33 [79]

Start from the right-most 7, and go one digit to the left each time:
7 - units place
7 - tens place
7 - hundreds place
3 - thousands place
2 - ten-thousands place
6 - hundred-thousands place
5 - millions place
4 - ten-millions place <----- answer to this question
1 - hundred-millions place
8 - billions place
0 - ten-billions place
9 - hundred billions place

The ten-millions place is the 4.

7 0

4 years ago