Edward took a survey of his classmates to see how many pets each student has. The dot plot shows the results of his survey

Answer:

The number of smoking rooms [tex]N_s = \frac{480(100-x)}{100}[/tex], in which x is the percentage of non-smoking rooms.

Step-by-step explanation:

We are given a percentage of rooms that are non smoking, lets say x%, and (100-x)% will be smoking rooms. The number of rooms which are smoking is the total number of 480, multiplied by (100-x) and divided by 100.

Then:

[tex]N_s = \frac{480(100-x)}{100}[/tex]

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Explanation:

To go from the first term to the second term, we add on some common difference d.

So,

B = A+d

B = (k+2)+d

4k-6 = k+2+d

4k-6-k-2 = d

d = 3k-8

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Similarly, to go from the second term to the third term, we also add on d

C = B+d

C = (4k-6)+d

C = (4k-6)+(3k-8)

C = 7k-14

3k-2 = 7k-14

---------------

Let's solve for k

3k-2 = 7k-14

-2+14 = 7k-3k

12 = 4k

4k = 12

k = 12/4

k = 3  is the final answer

---------------

If k = 3, then we have these three terms:

The arithmetic progression (AP) is 5, 6, 7. The common difference is d = 1.

Note how d = 3k-8 = 3(3)-8 = 1

Answer:

The last one: 25%

Step-by-step explanation:

Answer:

25% because 25 is 1/4 of 100

Step-by-step explanation:

Answer:

make x=0 then y=-3-7(0)= (0 -3)

Answer:

y=-3

Step-by-step explanation:

see steps below:)

Answer:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form:

61 /  10

Decimal Form:

6.1  

Mixed Number Form:

6 1/10  

Answer: 274.75

Step-by-step explanation:

To find the volume of a cylinder you find the area of the base and then multiply it by the height. The base is the radius (half the diameter) squared times pi which we will use 3.14. That gets us 78.5. Then we multiply by the height to get 274.75!

Hope this helps!

The capacity/volume of the cylinder is approximately: 274.89 cm³

capacity of a cylinder = volume of cylinder = πr²h.

Given the following:

Capacity/Volume of the cylinder = π(5²)(3.5)

Capacity/Volume of the cylinder ≈ 274.89 cm³

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Answer: I believe it is C.

Step-by-step explanation: Because if you take 4 x 20 = 80

If  I am wrong sorry.

Answer:

A) q>0

Step-by-step explanation:

_______________

OPTION D = 2q is right answer

Answer:

-3

Step-by-step explanation:

the question really doesnt make sense

Answer:

11x

Step-by-step explanation:

Each month, 11 letters are written over the course of x months, to find the total, we need to multiply the two:

11 * x

11x

Answer:

The confidence level is equivalent to 1 – the alpha level. So, if your significance level is 0.05, the corresponding confidence level is 95%. If the P value is less than your significance (alpha) level, the hypothesis test is statistically significant.

Answer:

The confidence level is equivalent to 1 – the alpha level. So, if your significance level is 0.05, the corresponding confidence level is 95%. If the P value is less than your significance (alpha) level, the hypothesis test is statistically significant.

Step-by-step explanation:

Answer:

my name is Thor the answer is false mark me in arsenal

Answer:

you multiply

Step-by-step explanation: itss easy just multiply it

Answer:

17 Dimes 68 Pennies

Step-by-step explanation:

If I'm right could I get brainiest I need it for my rank

Answer:

a

Step-by-step explanation:

is a because is 0.4 and is absolute deviation

Answer:

The value of 1/6 is less than the value of4\5.

So, the answer is < .

Choose the symbol that correctly compares the fractions below.

[tex]{ \bf{ \underbrace{Answer}}}[/tex]

Step-by-step explanation:-

[tex] \frac{1}{6} < \frac{4}{5} \\ 0.1667 \: < \: 0.8[/tex]

[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]

Answer:

A. True

Step-by-step explanation:

Even numbers are divisible by 2 with no remainder. 13/2 = 6.5 so yes.

Answer:

-x^2 +x +2

Step-by-step explanation:

f(x) = 4 - x^2 and g(x) = 2 - x

(f - g)(x) = 4 -x^2 - (2-x)

             =  4 -x^2 - 2+x

              = -x^2 +x +2

Answer:or leans to Nantes is 210 miles and angers to Rouen is 185 miles

Step-by-step explanation: I need one more brainliest to get next rank I’d appreciate it

Answer:

x = 30º

Step-by-step explanation:

This answer requires trigonometry, specifically, the cosine function. This is because we are given the length of the side adjacent to x and the length of the hypotenuse.

If you recall:

[tex]cos(x )= \frac{adjacent}{hypotenuse}[/tex]

Therefore,

[tex]cos(x) = \frac{13}{35}[/tex]

Now, we must use the inverse cosine function on a calculator to figure out the value of x.

[tex]cos^{-1}(\frac{13}{15}) = 29.93[/tex]

Now, we must round it to the nearest whole number, so x = 30º.

Answer:

188.57 cm^3

Step-by-step explanation:

I know i'm big brain

Answer:The answer is 1/2 or you can do 3/6 if it doesnt need to be simplified

Step-by-step explanation:

Probability is the chance of an event to occur from a number of possible outcomes.

The probability that a marble chosen at random is red is 1/2.

It is the chance of an event to occur from a number of possible outcomes.

It is given by:

Probability = Number of required events / Total number of outcomes

We have,

Total number of marbles in the bag = 6

Number of red marbles = 3

Number of yellow marbles = 1

The number of blue marbles = 2

The probability that a marble chooses is red:

= Number of red marbles / total number of marbles

= 3 / 6

= 1 / 2

Thus,

The probability that a marble chosen at random is red is 1/2.

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Answer:(0,10)

Step-by-step explanation:

The points On circle with a center at (0, 0) that includes the point (-1, -3) would be (0, 10).

If a circle O has a radius of r units length and that it has got its center positioned at (h, k) point of the coordinate plane,

then, its equation is given as:

[tex](x-h)^2 + (y-k)^2 = r^2[/tex]

We have given On circle with a center at (0, 0) that includes the point (-1, -3).

So the equation form

[tex](x-h)^2 + (y-k)^2 = r^2[/tex]

[tex](x-0)^2 + (y-0)^2 = r^2\\\\x^{2} +y^{2} =r^{2} \\\\(-1)^{2} +(-3)^{2} =r^{2} \\\\r^{2} = 10[/tex]

So, the other point that satisfies the equation would be (0, 10).

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9514 1404 393

Answer:

  C.  ΔABE≅ΔDBC by SAS

Step-by-step explanation:

Only two sides are marked as congruent. So, any claim using SSS is automatically false. (SSS requires 3 corresponding sides be congruent.)

Of the claims citing SAS, the one regarding ΔABD is false. The points A, B, and D are on the same line, so do not form a triangle.

The only correct claim is that of C: ΔABE≅ΔDBC by SAS

Answer:

If C and D are supplementary angles then C is 65 and D is 115.

Answer:

65

Step-by-step explanation:

first, find x

180=12x-7+16x+19

180=12x+16x-7+19

180+7-19=28x

168=28x

168/28=x

6=x

Now plug in 6 for x

C=12x-7

C=12*6-7

C=72-7

C=65

Answer:

B: y = -2x + 5

Step-by-step explanation:

-2 - 1 = -3

9 - 3 = 6

[tex]\frac{6}{-3}[/tex] = -2

gradient = -2

3 = 1 x -2 + c

3 = -2 + c

5 = c

y intercept = 5

equation = y = -2x + 5

so the answer is option b