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3 years ago

12

What is the range of the data set shown below?

2 answers:

Anarel [89]3 years ago

5 0

The range of the data 11 because 25 minus 14 is 11

Genrish500 [490]3 years ago

4 0

The answer is D. Hope I helped! :)

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Geometry help will give brainliest

LUCKY_DIMON [66]

You did the equation a little wrong. It is A^2 + B^2 = 10^2

4 0

4 years ago

The table shows the heights of 40 students in a class.

My name is Ann [436]

Answer:

see below

Step-by-step explanation:

There are 7 students between 120 and 124 so take the median of 122

Multiply the number of students by the median

7 * 122 =854

There are 8 students between 124 and 128 so take the median of 126

Multiply the number of students by the median

8 * 126 =1008

There are 13 students between 128 and 132 so take the median of 130

Multiply the number of students by the median

13 * 130 =1690

There are 9 students between 132 and 136 so take the median of 134

Multiply the number of students by the median

9 * 134=1206

There are 3 students between 136 and 140 so take the median of 138

Multiply the number of students by the median

3 * 138 =414

To find the mean, take the total weight and divide by the number of students

(854+1008+1690+1206+414) = 5172 lbs

7+8+13+9+3 = 40 students

5172/40 =129.3 lbs for the average

This is an estimate because we do not know that the number of students in each category will weight the median on average. We use the mean as an estimate of their weight. The median is the middle number of the category.

6 0

3 years ago

12. F(x) = 4x squared

Ymorist [56]

Answer:

y-intercept: $y=0$

axis of symmetry: $x=0$

vertex: $(0,0)$

Step-by-step explanation:

To find the y-intercept, set x = 0 and solve for y.

I am assuming f(x) = y

$y=4x^2$

$y=4(0)^2$

$y=0$

The y-intercept of the equation is y = 0.

Now, for the axis of symmetry, you need the equation $x=\frac{-b}{2a}$

In an equation.. $y=ax^2+bx+c$

In this case, there is only an a, so plug in the values into the equation.

$x=\frac{0}{2(4)}$

$x=0$

The axis of symmetry is x = 0.

To find the vertex, change the format of the equation from standard form to vertex form.

Vertex form: $y=a(x-h)^2+k$

The vertex is $(h,k)$

$y=4x^2 = 4(x+0)^2+0$

$(h,k)=(0,0)$

The vertex in this case is (0,0).

Graphing makes things a lot easier. If you can graph it, all you have to do is look at the graph and the answers are all there!

Hope this helped you!

6 0

3 years ago

Solve the equation. |K + 9| = 4

aalyn [17]

Answer:

A) {-13,-5}

Step-by-step explanation:

Given expression:

$|K+9|=4$

We need to solve for $K$

Since $K+9$ lies in the absolute brackets, so we can write the solution as ( $|x|\ where\ x>0\ and\ x$ ) :

For $K+9>0$

$K+9=4$

For $K+9$

$K+9=-4$

Solving for K individually.

Subtracting both sides by 9.

$K+9-9=4-9$ and $K+9-9=-4-9$

$K=-5$ and $K=-13$

So, the solution can be written as {-13,-5}

6 0

4 years ago

The sum of two consecutive odd integers is 32. Find the integers

hichkok12 [17]

Consecutive odd integers is 15 and 17

They have to be both odd

15 + 17 = 32

hope this helps

8 0

4 years ago

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