The bar graph shows the recommended number of hours of sleep for each age group.

How many hours of sleep are recommended for elementary-age children?
A. exactly 9 hours
B. exactly 10 hours
C. about 10 hours
D. about 12 hours

Answer:

Lisa is 24.

Step-by-step explanation:

56/2=28

28-4-thomas=24-lisa \

Carla is 28, Thomas is 20, and Lisa is 24. Hope this helps! :)

Answer:

9p^2-12p+4

Step-by-step explanation:

Apply perfect square formula;

a=3p , b=2

Apply perfect square formula;

(3p)^2-2*3p*2+2^2

Simplify:

=9p^2-12p+4

Answer:

Option A

Step-by-step explanation:

Coordinates of the given points A and A',

A → (-6, -2)

A' → (-2, 1)

Rule for the translation of point A to A',

A(-6, -2) → A'(-6+h, -2+k)

Since, coordinates of A' are (-2, 1)

Therefore, -6 + h = -2

                  h = 6 - 2 = 4

And (-2 + k) = 1

        k = 3

Therefore, rule for the translation will be,

(x, y) → (x + 4, y + 3)

Option A will be the answer.

Answer:

994.88 in2

Step-by-step explanation:

Use the surface area formula SA = 4(pi)(r2) which results in SA = 4(3.14)((8.9)2) = 994.88 square inches. Because the bowl represents half a sphere, it is necessary to divide that answer by 2 to get the surface of the bowl.

If radius of a salad bowl is 8.9 inches then the surface area of the bowl is 497.44 square inches, option c is correct.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Given that  radius of a salad bowl is 8.9 inches.

We have to find the  surface area of the bowl

The surface area of a half-sphere is given by the formula:

SA = 2πr²

where r is the radius of the sphere.

In this case, the radius of the salad bowl is 8.9 inches.

Substituting this value into the formula, we get:

SA = 2 x 3.14 x (8.9)²

SA = 497.44 square inches

Surface area =497.44 square inches

Hence, if radius of a salad bowl is 8.9 inches then the surface area of the bowl is 497.44 square inches, option c is correct.

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

#SPJ3

Answer: the question is asking you to basically plot the point so you should plot the point by using desmos graphing calculator, and you should get the answer.

Step-by-step explanation:

Answer:

D)  Undefined slope

Step-by-step explanation:

Note that the x-coordinate (3) of both given points is 3.  This means that the two points lie on a vertical line.  The slope of a vertical line is undefined.

The correct answer is D)  Undefined slope

Answer:

12.75feet (12¾)

Step-by-step explanation:

7t+1+5t+8=162feet

12t+9=162feet

12t=162-9

=153

t = 153÷9

=12.75feet (12¾feet)

Answer:

J

Step-by-step explanation:

check by multiplying each x value by 4

Answer:

D (J)

Step-by-step explanation:

y=4x is basically multiplying the x value by 4; 10*4 is 40, 20*4 is 80, and so on.

Answer:

19 2/3

Step-by-step explanation:

5 4/11 * 3 2/3 = 19 2/3.

Answer:

y = 75

Step-by-step explanation:

Given that:

   y [tex]\alpha[/tex] [tex]\sqrt{x}[/tex]

⇒ y = k[tex]\sqrt{x}[/tex]

where k is the constant of proportionality.

When y = 45, x = 81, then;

45 = k[tex]\sqrt{81}[/tex]

45 = 9 k

k = [tex]\frac{45}{9}[/tex]

  = 5

k = 5

So that,

y = 5[tex]\sqrt{x}[/tex]

the value of y when x = 225 is;

y = 5[tex]\sqrt{x}[/tex]

  = 5 x [tex]\sqrt{225}[/tex]

  = 5 x 15

y = 75

Answer:

the answerrrr I believe is C

Answer:

as a mixed number 1 2/9

Answer:

you will time 2 by 2 then 4 by 4 you get 4 and 16 the multipl

those So you get 64 inches is your anser

Answer:

3<-3 FALSE

0>-333 True

-13>-10 false

-10>-13 true

Answer:

-10 > -13

Step-by-step explanation:

On a number line (I wanna see if this works lol)

|___|___|___|___|___|___|

-15  -14   -13   -12   -11   -10   -9

Answer:

The best deal is the 18 ounce box

Answer:

the 18 ounce box is cheapest per ounce

Step-by-step explanation:

1. .28per ounce

2. .31per ounce

3. . 26per ounce

4. .25per ounce

Answer:

The answer is 22.

Step-by-step explanation:

dklecmmkek

Answer:

the answer is B hope this helps you out

Answer:

is this the one?

Step-by-step exExplanation:

Adding third equation to first one,

7

x

+

5

y

+

z

+

x

−

6

y

−

z

=

0

−

18

or  

8

x

−

y

=

−

18

.  

(

1

)

Adding 2 times of third one to second one,

−

x

+

3

y

+

2

z

+

2

⋅

(

x

−

6

y

−

z

)

=

16

−

2

⋅

18

or  

x

−

9

y

=

−

20

(

2

)

Substracting 8 times of  

(

2

)

from  

(

1

)

,

8

x

−

y

−

8

⋅

(

x

−

9

y

)

=

−

18

−

8

⋅

(

−

20

)

71

y

=

142

, so  

y

=

2

Hence,

x

−

9

⋅

2

=

−

20

or  

x

−

18

=

−

20

, so  

x

=

−

2

Thus,

7

⋅

(

−

2

)

+

5

⋅

2

+

z

=

0

or  

z

−

4

=

0

, so  

z

=

4Explanation:

Adding third equation to first one,

7

x

+

5

y

+

z

+

x

−

6

y

−

z

=

0

−

18

or  

8

x

−

y

=

−

18

.  

(

1

)

Adding 2 times of third one to second one,

−

x

+

3

y

+

2

z

+

2

⋅

(

x

−

6

y

−

z

)

=

16

−

2

⋅

18

or  

x

−

9

y

=

−

20

(

2

)

Substracting 8 times of  

(

2

)

from  

(

1

)

,

8

x

−

y

−

8

⋅

(

x

−

9

y

)

=

−

18

−

8

⋅

(

−

20

)

71

y

=

142

, so  

y

=

2

Hence,

x

−

9

⋅

2

=

−

20

or  

x

−

18

=

−

20

, so  

x

=

−

2

Thus,

7

⋅

(

−

2

)

+

5

⋅

2

+

z

=

0

or  

z

−

4

=

0

, so  

z

=

4planation:

Answer:

If a is positive and b is greater than 1 , then it is exponential growth. If a is positive and b is less than 1 but greater than 0 , then it is exponential decay

Step-by-step explanation:

small baby answer

Answer:

x<20

Step-by-step explanation:

Building linear functions for each situation, the inequality is:

[tex]18x + 100 < 15x + 160[/tex]

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

Choice A:

Thus, the cost of inviting x guests is given by:

[tex]C_a(x) = 18x + 100[/tex]

Choice B:

Thus, the cost of inviting x guests is given by:

[tex]C_b(x) = 15x + 160[/tex]

A cost less than B, thus, the inequality is:

[tex]C_a(x) < C_b(x)[/tex]

[tex]18x + 100 < 15x + 160[/tex]

A similar problem is given at https://brainly.com/question/13270950

Answer:

8,200= A)

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

Slope.

Step-by-step explanation:

mx+b

Answer:

Slope

Step-by-step explanation:

The equation of lines are normally formatted in "slope-intercept form"

(y = mx + b)

The b in the equation would be the y-intercept of the line.

The m represents the slope.

The x and y can be replaced with any x and y value from the line (if necessary)

Answer:

Step-by-step explanation:

sin(D) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

         = [tex]\frac{7}{14}[/tex]

         = [tex]\frac{1}{2}[/tex]

         = 0.5

cos(D) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

          = [tex]\frac{12.124}{14}[/tex]

          = 0.866

tanD = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

        = [tex]\frac{7}{12.124}[/tex]

        = 0.577

Since, sinE = cosD

Therefore, sinE = 0.866

Since, cosE = sinD

Therefore, cosE = 0.5

Since, tanE = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

                   = [tex]\frac{12.124}{7}[/tex]

                   = 1.732

Answer:

a31 = -334

Step-by-step explanation:

Given:

a1 = 26

a22 = -226

Find:

a31

Computation:

a22 = a + 21d

-226 = 26 + 21d

d = -12

a31 = a + 30d

a31 = 26 + 30(-12)

a31 = 26 - 360

a31 = -334

a1 = 26 and a22 = −226.

Answer:

A)  −334

Answer:

The answer is d.

Step-by-step explanation:

x is "a number." When a variable and a number are next to each other, they are being multiplied. So it's 7 times a number. Then you take the product of that and add 2.

So, d is the correct answer. :D

Answer:

isn't it that a parallelogram has 6 sides and these are 4?????????............

Answer:

2 strawberries

Step-by-step explanation:

Given that:

Number of strawberries :

Ona has 8

Barton has 4

For both Ona and Barton to have the same Nunber of strawberries :

(Ona + Barton) /2 = (8 + 4) / 2 = 12 /2 = 6

That means both Ona and Barton will have 6 strawberries each

Hence,

Barton who has 4 strawberries needs 2 more while Ona who has 8 will give out 2

Hence, Ona should give two strawberries to Barton.

Answer:

total strawberries 12

total 2 people

expression to find the mean 12/2

ona should give barton 2 strawberries so the number balance's out

Step-by-step explanation:

ywww trust me

Answer:

22.5

Step-by-step explanation:

Answer:

x = 22.5

Step-by-step explanation:

x - 9= 3/5x

3/5x - x = -9

-2/5x = -9

x = 22.5