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Marina86 [1]
3 years ago
12

Ms. Johnson asked her class to write an equivalent expression to

Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0
No one got the correct answer. The answer is supposed to be 7(2d+3k-dk-1). All the coefficients are divisible by 7, thus only the integers are changed. However, the variables cannot be a factor because they do not have the same variables that all the coefficients must have.
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For each part of this problem, show all your work and write a probability statement.
AlladinOne [14]

Answer:

Follows are the answer to the given point.

Step-by-step explanation:

In point 1:

\to P( \text{number of response}) = \frac{192}{338} \\

                                        = \frac{96}{169}\\\\= 0.56

In point 2:

\to P| \text{(Zoloft and fill response)}| = \frac{27}{338}

                                                 = 0.079

In point 3:

\to P(\frac{\text{ full or partial}}{\text{St. John's Wort}}) = \frac{\frac{43}{338}}{\frac{113}{338}}

                                = \frac{43}{338} \times \frac{338} {113}\\\\= \frac{43}{113}\\\\= 0.38

In point 4:

\to P(\frac{\text{Placebo}}{\text{full or response}}) = P(\frac{(\text{Placebo} \cap \text{full or response})} {\text{p(full response)}})

                               = \frac{\frac{79}{338}}{ 1- \frac{91}{338}} \\\\ = \frac{\frac{79}{338}}{  \frac{338-91}{338}} \\\\  = \frac{\frac{79}{338}}{\frac{247}{338}} \\\\  = \frac{79}{338} \times \frac {338}{247} \\\\= \frac{79}{274} \\\\ = 0.28

4 0
3 years ago
Factor the expression. 4d + 12 Enter your answers in the boxes.
Dmitry_Shevchenko [17]
4d + 12 = 4(d + 3)
Basically, you just need to determine what 4d and 12 have in common.  In this case, they both divide evenly by 4. Therefore 4 (d + 3) = 4d + 12 according to the distributive property. 
5 0
3 years ago
Read 2 more answers
The length of a rectangle is three times its width. The perimeter of the rectangle is 100 inches. What are the dimensions of the
ser-zykov [4K]

Answer:

We have l = 2w and 2l + 2w = 100 inches;

Then 4w + 2w = 100 inches;

6w = 100 inches;

w = 16.6;

l = 3 x 16.6;

l = 49.8 inches;


Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Find the area of the blue sector. Use 3.14 for pi and round to the nearest hundredth.
jeka94

Answer:

Option C 25.64\ in^{2}

Step-by-step explanation:

we know that

The area of a circle is equal to

A=\pi r^{2}

we have

r=7\ in

substitute

A=\pi(7)^{2}=49\pi\ in^{2}

Remember that

360 degrees subtends the complete area of the circle

so

by proportion

Find the area of the blue sector for an angle of 60 degrees

\frac{49\pi}{360}=\frac{x}{60}\\ \\x={49\pi*60/360

x=25.64\ in^{2}

3 0
3 years ago
Read 2 more answers
I need the answer fast please find the tan(b)
PSYCHO15rus [73]

Answer:

\sf \dfrac{17}{25}

Step-by-step explanation:

<h3>Trigonometry:</h3>

    \sf \boxed{\bf Tan \ B=\dfrac{oppoiste \ side \ to \ Tan \ B}{hypotenuse}}

         \sf tan \ B =\dfrac{17}{25}

6 0
1 year ago
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