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SpyIntel [72]
3 years ago
6

Which is the graph of y = _0.4x? A. B. C. D.

Mathematics
1 answer:
cestrela7 [59]3 years ago
8 0
Y = -0.4x

1) It is a straight line
2) I passes through the origin (0,0), because the y-intercpet is 0.
3) The slope is negative, so it passes throuh II and III quadrants
4) The magnitude of the slope = 0.4
4) The angle of the line with the negative side of the x-axis is that whose tan is 0.4 => angle = 21.8 °

With all that information you can identify the graph, given that you didn't include the options.
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If log 2 = a and log 5<br> b then<br> log<br> 32/125
sveta [45]

Answer:

log(32/125)

=log32 - log125 [log(x/y)=log(x) - log(y)]

=log(2)^2 - log(5)^3

=2log2-3log5 [log(x)^p=p log x]

=2a-3b

4 0
3 years ago
Solve the system of equation below x+y+z=2 x-y+5z=6
mamaluj [8]
X + y + z = 2
x - y + 5z = 6

cancelando +y com -y:

x + z = 2*(-5)
x + 5z = 6

-5x -5z = -10
...x +5z = 6
---------------------
-4x = -4 *(-1)
4x = 4
x = 4/4
x = 1

x + z = 2
1 + z = 2
z = 2 - 1
z = 1

x + y + z = 2
1 + y + 1 = 2
2 + y = 2
y = 2 - 2
y = 0 

S: {x, y, z} = {1, 0, 1}


8 0
3 years ago
I just need help solving this problem. Also please don't put the answer into a file because I can't open them. It's also really
Pavlova-9 [17]

Answer:

The value of x is 27

because 2 times 27 equals 54 minus 7 equals 47

5 0
2 years ago
The sum of three numbers is 95. The first number is 5 more than the third. The second number is 4 times the third. What are the
kotykmax [81]

Answer:

20, 60, 15

Step-by-step explanation:

Let the third number be n, then

The first number is n + 5 and the second number is 4n

Sum the 3 numbers and equate to 95, that is

n + 5 + 4n + n = 95 ← collect like terms on left side

6n + 5 = 95 ( subtract 5 from both sides )

6n = 90 ( divide both sides by 6 )

n = 15

Thus

The first number is 15 + 5 = 20

The second number is 4 × 15 = 60

The third number is 15

4 0
3 years ago
How much money should be deposited today in an account that earns 4% compounded semi annually so that it will accumulate to 13,0
DedPeter [7]

Answer:

$11543.63

Step-by-step explanation:

<u>Plug information into A=P(1+r/n)^nt</u>

13000 = P(1+(.04/2))^(2*3)

13000 = P(1.02)^6

<u>Isolate P</u>

13000/(1.02^6) = P

P = $11543.63

5 0
2 years ago
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