All categories

3 years ago

Look at the dot plot to answer the following question.

Mathematics

2 answers:

mestny [16]3 years ago

8 0

There are 3 more dots above the 13 than are above the 12, so the appropriate choice is ...

... A. 3

Bad White [126]3 years ago

3 0

Answer:

Option A is correct.

Step-by-step explanation:

Given: A Dot Plot

We need to find Number of more people who started babysitting when they were 13 rather than 12.

Number of people who started baby sitting when they were 12 year old = 3

Number of people who started baby sitting when they were 13 year old = 6

Number of more people who started babysitting when they were 13 rather than 12 = 6 - 3 = 3

Therefore, Option A is correct.

You might be interested in

Type the correct answer in the box. Assume that pi=3.14 and round your answer to the nearest integer.

stepan [7]

Answer:

$648\ yd$

Step-by-step explanation:

step 1

Find the circumference of the complete circle

The circumference is equal to

$C=2\pi r$

we have

$r=35\ yd$

substitute

$C=2\pi(35)$

$C=70\pi\ yd$

step 2

Find the measure of the arc length for a central angle of 280 degrees

Remember that the circumference subtends a central angle of 360 degrees

so by proportion

$\frac{70\pi}{360}=\frac{x}{280}\\ \\x=280*(70\pi )/360\\ \\x=54.44\pi\ yd$

step 3

Find the perimeter of the playground

$P=54.44\pi+45=54.44*3.14+45=215.96\ yd$

Multiply by 3

$215.96*(3)=647.87\ yd$

Round to the nearest integer

$647.87=648\ yd$

7 0

3 years ago

Read 2 more answers

Find the value of x in the triangle above

mestny [16]

Answer:

i think it should 50

Step-by-step explanation:

5 0

2 years ago

Courtney has 27 chocolate chip cookies and 36 oatmeal raisin cookies. She needs to arrange them on trays. She doesn't want to co

Wittaler [7]

Well since she's trying to get 2 trays of equal cookies you subtract like how much does 27 go into 36 once so that's how much on each tray 27

7 0

3 years ago

Match the steps to find the equation of the parabola with focus (-1, 2) and directrix x = 5.

Archy [21]

Answer:

The matched options to the given problem is below:

Step1: Choose a point on the parabola

Step2: Find the distance from the focus to the point on the parabola.

Step3: Use (x, y).

Find the distance from the point on the parabola to the directrix.

Step4: Set the distance from focus to the point equal to the distance from directrix to the point.

Step5: Square both sides and simplify.

Step6: Write the equation of the parabola.

Step by step Explanation:

Given that the focus (-1,2) and directrix x=5

To find the equation of the parabola:

By using focus directrix property of parabola

Let S be a point and d be line

focus (-1,2) and directrix x=5 respectively

If P is any point on the parabola then p is equidistants from S and d

Focus S=(-1,2), d:x-5=0

Step1: Let P(x,y) be any point on parabola

Step2: Therefore the $d=\sqrt{(x+1)^2+(y-2)^2}\hfill (1)$

Step3: The perpendicular distance from p to d is

$\frac{|x-5|}{\sqrt{(-1)^2+2^2}}$

$=\frac{|x-5|}{\sqrt{5}}\hfill (2)$

Step4: equating (1) and (2)

$\sqrt{(x+1)^2+(y-2)^2}=\frac{|x-5|}{\sqrt{5}}$

Step5: squaring on both sides

$(x+1)^2+(y-2)^2=\frac{|x-5|^2}{5}$

$5[(x+1)^2+(y-2)^2]=(x-5)^2$

$5[x^2+2x+1+y^2-2y+4-x^2+10x-25]=0$

$12x+y^2-2y-24=0$

Step6: Equation of the parabola is

$y^2-2y+12x-24=0$

8 0

2 years ago

The bookstore is overstocked with old fantasy novels. It needs to get rid of the novels to make room for newly published fantasy

chubhunter [2.5K]

That is your own opinion

6 0

2 years ago