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prisoha [69]
3 years ago
14

How do you do this?????

Mathematics
1 answer:
marin [14]3 years ago
7 0
You but the number in for the letter and solve it

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9^x=1/3<br><br> How much is x?
kumpel [21]

Answer:

x = -1/2

Step-by-step explanation:

This question can be solved by applying the laws of indices

In a^n, a - base

n - index

Given

9^x = 1/3

According to the laws of indices, a/b = b^(-a)

Hence we can write, 1/3 = 3^(-1)

9^x = 3^(2x)

Again according to the laws of indices,

a^b = a^n can be written as;

b = n

That is, if in an equation the bases are the same, the indices are also equal.

So we can write,

3^(2x) = 3^(-1)

2x = -1

Divide both sides of the equation by 2, the coefficient of x

2x/2 = -1/2

x = -1/2

6 0
3 years ago
State whether the given measurements determine zero, one, or two triangles.
german
Let's apply the law of sine  to calculate angle C
sin(81)/26 =  sin(C)/28
0.1646 = sin(C)/28 and sin(C) =1.063. Sine sin(α) cannot be > than 1, so this triangle is invalid
6 0
3 years ago
Read 2 more answers
Solve the inequality. 2w 3 &gt; 14 <br> a. w 8.5 <br> c. w 5.5
omeli [17]
If there's a plus sign in between the 2w and 3 then the answer is C. w 5.5
6 0
3 years ago
Emma used 1/7 of a liter of milk to make 1/3 of a jug of tea. How much milk, in liters, is required to fill the jug?
fiasKO [112]

Answer:

Step-by-step explanation:

Well....if 1/7 liters  of milk makes 1/6 of a jug

Then  six times this must be a full jug....so

6*(1/7)   =

6/7 liters of milk  required

i hope this helps you happy holidays let me know if you need more information

6 0
3 years ago
Read 2 more answers
What is 2+(9-5)x7-3/4
Cloud [144]
I got 9.75 hope it's right
5 0
3 years ago
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