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fomenos
3 years ago
7

Please helped mePlease I need help ^_^:-{^_^:-{^_^:-{^_^:-{^_^:-{^_^​

Mathematics
2 answers:
TEA [102]3 years ago
8 0

Answer:

A. 8

Step-by-step explanation:

This is just an educated guess

likoan [24]3 years ago
3 0
This is an inverse function. First set up ur equation. 4/6= X/15. Next, solve for x with cross multiplication. 6x = 60. X = 60
You might be interested in
Write a function rule in terms of x and y for the line that contains the points (-7.4, -9.7) and ( 8.4, 6.1) .
Karo-lina-s [1.5K]

Answer:

y = x + -2.3

x = -y - 2.3 (but why would one need this?...)

Step-by-step explanation:

(6.1 - (-9.7))/(8.4 - (-7.4)) = 15.8/15.8 = 1

6.1 = 8.4 + b

b = -2.3

8 0
3 years ago
Can anyone help me with this​
stiks02 [169]

Answer:

ohh i don't know the answer

6 0
3 years ago
Please prove it for me​
grigory [225]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

tanx = \frac{1}{cotx}

Consider the left side

\frac{cotA-1}{cotA+1} ← divide terms on numerator/denominator by cotA

= \frac{\frac{cotA}{cotA}-\frac{1}{cotA}  }{\frac{cotA}{cotA}+\frac{1}{cotA}  }

= \frac{1-tanA}{1+tanA}

= right side , thus proven

7 0
2 years ago
How to solve <img src="https://tex.z-dn.net/?f=log_%7By%7D%285y%29%20%3D%202" id="TexFormula1" title="log_{y}(5y) = 2" alt="log_
Natalija [7]

Answer:

  y = 5

Step-by-step explanation:

Expand the logarithm:

\log_y{(5)}+\log_y{(y)}=2\\\\\dfrac{\log{(5)}}{\log{(y)}}+1=2 \quad\text{change of base formula}\\\\\dfrac{\log{(5)}}{\log{(y)}}=1 \quad\text{subtract 1}\\\\\log{(5)}=\log{(y)} \quad\text{multiply by log(y)}\\\\5=y \quad\text{take the anti-log}

_____

You can also take the antilog first:

  5y = y²

  y(y -5) = 0 . . . . . subtract 5y, factor

  y = 0 or 5 . . . . . y=0 is not a viable solution, so y=5.

5 0
3 years ago
I forgot how to solve this question <br> 7x +9=58
daser333 [38]
Minus 9 from both sides

7x = 49

X = 7
6 0
3 years ago
Read 2 more answers
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