Find the standard deviation for the test scores
given in the following stem-and-leaf plot.

Answer:

13 units hope help you keep dmiling

Answer:

26

Step-by-step explanation:

Area = base times hight (it;s not a triangle)

Since this is a diamond and not a triangle you don't have to divide by 2

So:

7 + 6 = 13

13 x 2 = 26

Answer:

The answer is B

Step-by-step explanation:

The opposite of the opposite of the number is the number itself

-(- turns positive

Answer:

The formula is Lenght * width * height = 12*6*5= 360 in^2

Answer: 6 units

Step-by-step explanation:

You count the numbers between A and C

Answer:

6

Step-by-step explanation:

From -4 to 2 is 6 units. Just count on the graph and you can see that it is 6 units long.

Answer:

18.7 wreaths

Step-by-step explanation:

Beverly makes wreaths to sell for the fall season. She picked 430 pine cones from the wooded area near her house. If she uses 23 pine cones per wreath, how many wreaths can she make?

From the above question:

23 pine cones = 1 wreath

430 pine cones = x wreaths

Cross Multiply

23 pine cones × x wreaths = 430 pine cones × 1 wreath

x wreaths = 430 pine cones × 1 wreath/23 pine cones

x wreaths = 18.695652174 wreaths

Approximately = 18.7 wreaths

4x + 8y = -40

if x = -6

4(-6) + 8y = -40

-24 + 8y = -40

8y = -40 + 24

8y = - 16

y = -16/8

y = -2

Answer:

Step-by-step explanation:

To find value of y

4x + 8y = -40

x = -6

=> 4x + 8y = -40

[By putting the value of x = -6 then ]

=> 4×(-6) + 8y = -40

=> -24 + 8y = -40

=> 8y = -40 + 24

=> 8y = -16

[tex] = > y = \frac{ - 16}{8} [/tex]

=> y = -2

Hence, required value of y is -2 (Ans)

Step-by-step explanation:

What do you need help with?

Answer:

y = 4x + 7

Step-by-step explanation:

Isolate the 2y term on the left by subtracting 8x from both sides.  We get:

2y = -8x + 14

Dividing both sides by 2 isolates y:

         8x + 14          

y = -----------------  =  4x + 7  

             2

y = 4x + 7

The solution for y will be -4x+7

We were given 8x+2y=14

We then isolate y for easy calculation

2y= -8x+14

We divide both sides by 2

2y = -8x+14

2        2

y= -4x+7

Read more about Polynomial here https://brainly.com/question/2833285

Answer:

30 degree

Step-by-step explanation:

70 - 40 = 30

Answer:

I believe your answer is 30 degrees.

Step-by-step explanation:

By using the simple equation 40 + x = 70

we can subtract 40 from 70 to get

x = 30

I hope that helps

Answer:

y = -240

Step-by-step explanation:

If y varies jointly as x and z, then y/(xz) = k where k is the constant of proportion

60/10(-3) = 60/-30 = -2 = k

Now,  y/(xz) = -2

          y/8(15) = -2

          y/120 = -2

                y = -240

Answer:

Option B will be your answer

Step-by-step explanation:

hope it helps you...

Answer:

B is correct

Step-by-step explanation:

7x -4 5/x-1

Answer:

A) zeros are x = ½ or x = ½

B) >> sum of zeros = (-Coefficient of x)/(Coefficient of x²)

>> Product of the zeros = Constant term/Coefficient of x²

Step-by-step explanation:

To find the zeros, we will equate the polynomial to zero.

Thus;

4x² - 4x + 1 = 0

Using quadratic equation, we can find the zeros.

x = [-(-4) ± √((-4)² - (4 × 4 × 1))]/(2 × 4)

x = (4 ± 0)/8

x = 4/8 and x = 4/8

Thus, zeros are x = ½ or x = ½

Now, to find the relationships between its zeroes and coefficients;

Sum of zeroes = ½ + ½ = 1

This is equal to -b/a = -(-4)/4 = 1.

Thus;

sum of zeros = (-Coefficient of x)/(Coefficient of x²)

Product of zeros = ½ × ½ = ¼

c/a = 1/4

This is equal to the product of the zeros.

Thus;

Product of the zeros = Constant term/Coefficient of x²

Answer:

d = 12cm

Step-by-step explanation:

d=2r = 2·6 = 12cm

Maths keeps one mentally active. The circumference = 2*(pi)*r = 6 cm. Therefore r, the radius = 6 *7/(2*22) = 42/44 = 0.954 cm.

Answer:

12

Step-by-step explanation:

It's double the radius.

Answer: 100

Step-by-step explanation:

1 cubic inch would just be 100 because each cube is 1 cubic inch. So 100(number of cubes)/1(cubic inch)=100 I hope I'm right :)

Answer: k=x^3-2x^2+2x-4/x

Step-by-step explanation: hope this helps!

Answer:

Option B.

Step-by-step explanation:

When we have an angle A, in degrees, the coterminal angles are all the angles that can be written as:

B = A + n*360°

Where n is a positive or a negative integer (if n = 0, then B = A, which means that A is coterminal with itself, which is trivial).

Now we want to find two coterminal angles to 117°, such that one is positive and the other negative.

Then we can do:

for the positive one, use n = 1.

B = 117° + 1*360° = 477°

For the negative one, use n = -1

B = 117° - 1*360° = -243°

Then the two angles are 477° and -243°

The correct option is B.

Answer:

1)  12h - 10

2) 63m + 54

3) 21z - 12

4) 77w - 54

5) -72n + 28

6) 20y + 63

7) -24g -72

8) -63w + 14

9) -21s

10)  -6m -12

Step-by-step explanation:

Answer:

c=2(3.14)r

r= 5inches

c=2•3.14•5

c=31.4 inches

Answer:

The first one does not work, the second one does.

Step-by-step explanation:

Use the triangle inequality formula:

a = 15

b = 37

c = 53

15 + 37 > 53 No

It does not work.

a = 9

b = 16

c = 8

9 + 16 > 8 Yes

9 + 8 > 16 Yes

16 + 8 > 9 Yes

The first one does not work, the second one does.

Hope this helps! <3

Answer:

41

Step-by-step explanation:

Substitute the actual values of the points into the distance formula

Answer:

[tex]\sqrt{41}[/tex]

Step-by-step explanation:

You need to use the distance formula:

[tex]d = \sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1} ) ^{2} }[/tex]

d = [tex]\sqrt{ (-2 - (-7))^{2} + (-4 - 0)^{2} }[/tex]

   = [tex]\sqrt{(5)^{2} + (-4)^{2} }[/tex]

   = [tex]\sqrt{25 + 16}[/tex]

   = [tex]\sqrt{41}[/tex]

Answer:

I hope you got an answer dude

Answer:

p/rn to the third root of 1^rnt

Step-by-step explanation:

I just this on my edmentum/ plato course so its right

Answer: 4 hours, $160

Step-by-step explanation:

100+15x= 40x

100= 25x

4=x

4 Hours

4*40 = 160

or 100 + 15*4= 160

Step-by-step explanation:

7x-2y-4x+5y(This is what you should do)

Question:

In triangle FGH, the measure of angle H = 90°, HG = 48, FH = 55, and GF = 73. What ratio represents the tangent of angle G?

___________________________________________________

Solution:

The triangle FGH should look like that in the attachment.

Tangent of angle G = opposite side/adjacent side

= FH/HG

= 55/48

Answer:

-1 is the value

Step-by-step explanation:

24 - 5² = 24 - 25

= -1

Answer:

A, The function has exactly one zero at x = -4

Step-by-step explanation:

As you can from the graph, the graph ONLY touches y = 0 at ONLY x = -4.

Answer:

80

Step-by-step explanation:

120/1 x 2/3 = 240/3= 80 Hope that helps!