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faltersainse [42]
3 years ago
10

To gain access to his account, a customer using an automatic teller machine (ATM) must enter a four-digit code. If repetition of

the same four digits is not allowed (for example 5555), how many possible combinations are there?
Mathematics
1 answer:
VMariaS [17]3 years ago
8 0
I’m not really much sure, I tried.
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A and B are complementary angles. If m_A = (6x + 29) and m
Liono4ka [1.6K]

Answer:

m∠A=77°

Step-by-step explanation:

Complementary angles are a pair of angles whose measures have a sum of 90°. Since m∠A = 6x+29 and m∠B = x+5, we can write the following equation to solve for x:

6x+29+x+5=90

Solving for x, we get:

6x+29+x+5=90

7x+34=90 (Simplify LHS)

7x+34-34=90-34 (Subtract 34 from both sides of the equation to isolate x)

7x=56 (Simplify)

\frac{7x}{7}=\frac{56}{7} (Divide both sides of the equation by 7 to get rid of x's coefficient)

x=8

Therefore, m∠A=6x+29=6(8)+29=48+29=77°. Hope this helps!

6 0
3 years ago
Read 2 more answers
Which is the line shown in the figure?<br> Oline XY<br> Oline XZ<br> Oline WX<br> Oline WZ
Anika [276]

Answer:

line Xz

Step-by-step explanation:

because xz is

trasnveral

to XYZ

to XWZ

ok make

as brain list

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3 0
2 years ago
What is the sum of the 2nd square number and the 2nd cube number?
hammer [34]

Answer:

17

Step-by-step explanation:

Second square number is 9; 3×3

second cube number is 8; 2×2×2

9+8=17.

8 0
2 years ago
Which of the following is an arithmetic sequence?
masha68 [24]

Answer:

B

Step-by-step explanation:

And arithmetic sequence is a sequence in which the difference between each of the numbers are constant.

It is not A, because the difference between 3 and 9 is positive 6, and the difference between 9 and 81 is positive 72.

It is not C, because the difference between 4 and 1 is -3, and the difference between 1 and 4 is positive 3.

It is not D, because the difference between 2 and -2 is -4, and the difference between -2 and 2 is positive 4.

And it is B because the numbers maintain a constant difference between each other, which is -3.

3 0
3 years ago
Read 2 more answers
Please answer the question from the attachment.
kompoz [17]
C - 11 /9 = 9

Multiply both sides by 9

c - 11 = 81

add 11 to each side to isolate c

c = 81 + 11 = 92
3 0
3 years ago
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