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Sedbober [7]
3 years ago
15

4m - 9= 31 I can’t remember how to work this out. Can someone help?

Mathematics
2 answers:
Schach [20]3 years ago
8 0

Answer:

4m - 9 = 31   4m= 40 because m=10 10 times 4 = 40

Step-by-step explanation:

lianna [129]3 years ago
5 0

Answer:

10

Step-by-step explanation:

4m=40

m=10

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Solve: 4-(9g-5)=-27 please help
8_murik_8 [283]

Answer:

-2

Step-by-step explanation:

9g-4-5=-27

9g-9=-27

Add 9 to both sides

9g=-18

g=-2

4 0
3 years ago
Read 2 more answers
Please help. I will give ten points for answer
galina1969 [7]

Answer: 2nd graph and the point is (6,7)

Step-by-step explanation:

6 0
2 years ago
8. In right triangle LMN shown below, altitude MK is drawn to LN from M. IF LM = 12 and LK =10, then
Elena-2011 [213]

The length of the KN is 4.4

Step-by-step explanation:

We know from Pythagoras theorem  

In a right angle ΔLMN  

Base² + perpendicular² = hypotenuse ²

From the properties of triangle we also know that altitudes are ⊥ on the sides they fall.

Hence ∠LKM = ∠NKM = 90 °

Given values-

LM=12

LK=10

Let KN be “s”

⇒LN= LK + KN

⇒LN= 10+x        eq 1

Coming to the Δ LKM

⇒LK²+MK²= LM²

⇒MK²= 12²-10²

⇒MK²= 44           eq 2

Now in Δ MKN

⇒MK²+ KN²= MN²

⇒44+s²= MN²       eq 3

In Δ LMN

⇒LM²+MN²= LN²

Using the values of MN² and LN² from the previous equations

⇒12² + 44+s²= (10+s) ²

⇒144+44+s²= 100+s²+20s

⇒188+s²= 100+s²+20s    cancelling the common term “s²”

⇒20s= 188-100

∴ s= 4.4

Hence the value of KN is 4.4  

8 0
3 years ago
Use natural logarithms to solve the equation. Round to the nearest thousandth. 6e4x - 2 = 3
frosja888 [35]
6 · e^(4x - 2) = 3
     e^(4x - 2) = .5
 ln e^(4x - 2) = ln (.5)
          4x - 2 = ln (.5)
               4x  = ln (.5) + 2
                 x  = (ln (.5) + 2)/4
                 x = 0.3267
                 x ≈ 0.327

Answer: B

6 0
3 years ago
Plsss help!<br><br> I will give brainliest
liberstina [14]

Answer:

x= +2, -2

hope it helps you

6 0
3 years ago
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