3 years ago

The product of twice a number and four is the same as the difference of seven times the number and 4/9. Find the number.

Mathematics

1 answer:

arlik [135]3 years ago

5 0

Answer:

yeah it's right! good job! :D #markasbrainliest

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Convert 8.132132132 to a rational expressions in the form of a/b where b = 0

Sladkaya [172]

The answer would be 8 132/999. I don't know if you can simplify it but see if you can.

6 0

3 years ago

Formula for the flow of current in an electrical<br> circuit, V= IH, for I

HACTEHA [7]

Answer:V/H=I

Step-by-step explanation:

v=IH

V/H=I

3 0

2 years ago

Which of the following is true regarding the solution to the logarithmic equation below? log Subscript 2 Baseline (x + 11) = 4.

meriva

Answer:

Option C.

Step-by-step explanation:

The given logarithmic equation is

$\log_2(x+11)=4$

It can be written as

$(x+11)=2^4$ $[\because log_ax=y\Leftrightarrow x=a^y]$

$x+11=16$

$x=5$

Now, to check whether $x=5$ is a true solution or not. Substitute $x=5$ in the LHS of given equation.

$LHS=\log_2(5+11)$

$LHS=\log_2(16)$

$LHS=\log_22^4$

$LHS=4$ $[\because log_aa^x=x]$

$LHS=RHS$

Hence, $x=5$ is a true solution because $\log_2(16)=4$ .

Therefore, the correct option is C.

5 0

2 years ago

Yuri computes the mean and standard deviation for the sample data set 12, 14, 9, and 21. He finds the mean is 14. His steps for

Tpy6a [65]

Answer:

B. Yuri divided by n instead of n-1

Step-by-step explanation:

It was stated in the question that the dataset was sample dataset. For a sample dataset, the standard deviation is given by the formula,

σ = √ Σ (Xi - mean)²/(n - 1) where i = 1,2,3.....n

Since this is just a sample dataset and not the whole population, Yuri should have divided by n-1 instead of n.

3 0

3 years ago

A 24 hour digital watch shows 19:29:00 on its face. The first two digitals adicate

liraira [26]

Answer:

271

Step-by-step explanation:

4 hours and 31 minutes = 240 + 31 = 271 minutes

8 0

2 years ago