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cestrela7 [59]
3 years ago
6

Help please!!!!!!!!!!!!​

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

  \log_{9}{\dfrac{13}{x}}=\log_{9}{\boxed{13}}-\log_{9}{x}

Step-by-step explanation:

The rule is ...

  log(a/b) = log(a) -log(b) . . . . all logs to the same base

Then for a/b = 13/x, this becomes ...

  log(13/x) = log(13) -log(x)

If the base of logarithms is 9, then this is ...

  log9(13/x) = log9(13) -log9(x)

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In need of help!!!! Please
otez555 [7]

Answer:

a. 36 b. 217.1

Step-by-step explanation:

l x w= 6 x 6 = 36

14x21=294

Area of a circle = pi r squared

7x7=49

49/2=24.5

24.5 x 3.14=76.93

294-76.9=217.1

3 0
3 years ago
Please help!!!!!!!!!!!!!!!!!!!!!!!
egoroff_w [7]

Answer:

about -0.09

Step-by-step explanation:

Plug in -0.09 in a calculator into the inverse tan function to get about -0.09 or what is said to be -0.089 radians or -5.14 degrees

Hope i helped, vote me brainly :)

3 0
3 years ago
P(x)=5x^2-3x+7(x=1)<br> Pls
kramer

Answer:

9

Step-by-step explanation:

Given

p(x) = 5x² - 3x + 7 ← substitute x = 1

p(1) = 5(1)² - 3(1) + 7 = 5(1) - 3(1) + 7 = 5 - 3 + 7 = 9

4 0
3 years ago
A cube has a volume of 216cm/3.what is the area of the base of the cube
Anettt [7]

Answer: 36 cm^2

Step-by-step explanation:

Hello!

We can start by finding the cube root of 216, which is 6. This is the length of each side of the cube.

Now, the area of the base of the cube is equal to 6^2=36 cm^2.

7 0
3 years ago
Read 2 more answers
What value represents the number of ways in which the expected classes are free to vary in the chi-square goodness-of-fit test?
Ket [755]

In statistics, the number of degrees of freedom is the number of values in the final calculation of a statistic that are free to vary.

The number of independent ways by which a dynamic system can move, without violating any constraint imposed on it, is called number of degrees of freedom. In other words, the number of degrees of freedom can be defined as the minimum number of independent coordinates that can specify the position of the system completely.

<span>
The degree of freedom
represents the number of ways in which the expected classes are free to vary in the chi-square goodness-of-fit test.</span>

8 0
3 years ago
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