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Nostrana [21]
3 years ago
8

30 45 60 Which is it? Help please

Mathematics
1 answer:
blagie [28]3 years ago
3 0

Answer:

D = 90°

Step-by-step explanation:

the square on the angle means its a right angle and right angle is always 90°

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2x+14y=-108 9x+2y= 2 Solve the following system of equations using any method
Orlov [11]
<span>2x+14y=-108
</span><span>63x+14y= 14       (multiply the second equation by 7 and subtract)
_____________
-61x=-122
x=-122/-61
x=2
2(2)+14y=-108
4+14y=-108
14y=-112
y=-112/14
y=-8

</span>
4 0
3 years ago
Which of the following systems has infinitely many solutions?
stich3 [128]

Answer:

d

Step-by-step explanation:

4 0
2 years ago
Y+23=59<br><br>solve for y i dont know if i have to add or subtract the 23 and 59
neonofarm [45]
When you move a number to the opposite side of the equation, in this occasion it will be 23- it changes to the opposite value. So us 23 is a positive value you can move it and change it to a negative. Or in other words suntract -23 from all sides of the equation, which will be equal to: 
y = 59 - 23
Y = 36

7 0
3 years ago
How many pairs of potential clients can be randomly chosen from the pool of eight candidates?
sweet [91]
1 12 13 14 15 16 17 18
2 23 24 25 26 27 28
3 34 35 36 37 38
4 45 46 47 48
5 56 57 58
6 67 68
7 78
8
approximately 28 pairs. (breakdown above) hope this helps

4 0
3 years ago
Read 2 more answers
Find the first four terms of the sequence an = 4n-6
natulia [17]

Answer:

The first four terms of the sequence are-6, -2, 2 and 6

Step-by-step explanation:

The given sequence is a_n=4n-6

In order to find the first four term of the sequence we put n =0, 1, 2 and 3.

For n =0

a_0=4(0)-6=-6

For n =1

a_1=4(1)-6=-2

For n =2

a_2=4(2)-6=2

For n =3

a_3=4(3)-6=6

Therefore, the first four terms of the sequence are

-6, -2, 2 and 6

5 0
3 years ago
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