Hiroaki says that a constant of proportionality must be a whole number and cannot be a fraction or a decimal. Explain why Hiroaki is incorrect.

Answer:

if u post the picture of the question or explain more detail i could help u out

Step-by-step explanation:

Answer:

All the student are members of the planetarium's frequent visitor program.

Step-by-step explanation:

Let x represent the number of student who are members of the planetarium's frequent visitor program.

And let y represent the who are not a member.

Then two equations can be formed using the provided data:

x + y = 19...(i)

11x + 13y = 209...(ii)

Multiply (i) by 13 and solve for x as follows:

13x + 13y = 247

-11x  - 13y = -209

2x = 38

x = 19

Substitute x = 19 in (i) and solve for y as follows:

x + y = 19

19 + y = 19

y = 0

Thus, all the student are members of the planetarium's frequent visitor program.

Answer:

1/6

2/6 or 1/3

Step-by-step explanation:

Answer:

(– 4,– 5) = –9

(– 2,– 6) = –8

Answer:

See explanation

Step-by-step explanation:

Given

[tex]x = -7.5[/tex]

[tex]Expression: -3.8x + 6[/tex]

Required

Determine Gaira mistake

When Gaira solved the expression, she solved as:

[tex]-3.8x + 6x[/tex]

Giving her

[tex]-3.8x * -7.5 + 6 * -7.5[/tex]

This is incorrect as the correct expression is

[tex]-3.8x + 6[/tex]

and it is solved as follows:

Substitute -7.5 for x in -3.8x + 6

[tex]-3.8x + 6[/tex]

[tex]-3.8 * -7.5 + 6[/tex]

[tex]28.5 + 6[/tex]

[tex]34.5[/tex]

34.5 is the correct solution

Answer:

Gaira made a mistake when substituting the value –7.5 in for x. She multiplied both terms of the expression by –7.5 when she should have only multiplied –3.8 by –7.5. The correct answer is 34.5.

Step-by-step explanation:

Did the ED2020

Answer:

-9

Step-by-step explanation:

f(-2)=7(-2)+5

f(-2)=-14+5

f(-2)=-9

Answer:

Are there answer choices? But when looking at it one side should just be a little bit more than double the length of one side.

Step-by-step explanation:

This is because 20 is less than half of 50

Answer:

The approximate volume of dirt in the hill = 70372 ft³

Step-by-step explanation:

From the given information:

Laura uses a model of a truncated cone to estimate the volume of the dirt.

This implies that the volume of the dirt in the large hill took the shape of a truncated cone.

Her estimate then includes:

a base diameter = 80 feet ; then the base raidus (R) = 80 feet/2 = 40 feet

a top diameter  = 40 feet ; then the top radius (r) =  40 feet/2 = 20 feet

a helght = 24 feet.

Using the formula for the volume of a truncated cone :

[tex]V =\dfrac{1}{3} \times \pi \times h \times ( r^2 +r \times R+ R^2)[/tex]

[tex]V =\dfrac{1}{3} \times \pi \times 24 \times ( 20^2 +20 \times 40+ 40^2)[/tex]

[tex]V =25.133 \times ( 400 +20 \times 40+ 1600)[/tex]

V = 70371.675 ft³

V ≅ 70372 ft³

Answer:

70,336

Step-by-step explanation:

Answer:

it's the second one! 11√3 - 7√6

Answer:

B.

Step-by-step explanation: You have to simplify the radical expressions [tex]\sqrt{48}[/tex] simplified is [tex]4\sqrt{3}[/tex] and [tex]\sqrt{58}[/tex] simplified is [tex]3\sqrt{6}[/tex].

Next, collect the like terms [tex]7\sqrt{3} + 4\sqrt{3} = 11\sqrt{3}[/tex] then [tex]4\sqrt{6}- 7\sqrt{6} = 7\sqrt{6}[/tex]

Then you'll put it all together which will give you an answer of  [tex]11\sqrt{3} - 7\sqrt{6}[/tex]

Answer:

The area covered by the wiper blade is 35 square inches

Step-by-step explanation:

Here, we want to calculate the area covered by the blade of the wiper

Mathematically, this is simply the area of the sector formed by the wiper on the screen

This can be calculated as follows;

theta/360 * pi * r^2

From the question theta = 50 degrees

r = the length of the wiper = 9 inches

So the area is;

50/360 * 22/7 * 9^2 = 35.35714285714286

This is closest to 35 square inches

Answer: 8

Step-by-step explanation:

1. 5 * |7-9| - 2

2. 5 * 2 - 2

3. 10 - 2

4. 8

Answer:

The answer is [tex]-\frac{1}{15}[/tex]

Step-by-step explanation:

I used my calculator and inputted everything.

Answer:

Y= x^2 + 5x - 22

Step-by-step explanation:

Slope intercept form= y=Mx+b

Answer:

x=31/14

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−4x+1=−9x−16+9x+16

−4x+1=−9x+−16+9x+16

−4x+1=(−9x+9x)+(−16+16)(Combine Like Terms)

−4x+1=0

−4x+1=0

Step 2: Subtract 1 from both sides.

−4x+1−1=0−1

−4x=−1

Step 3: Divide both sides by -4.

−4x−4=−1/-4

x=1/4

Answer:

288: least common multiple

Step-by-step explanation:

Answer:

The LCM of 96 and 72 is 1,656

Step-by-step explanation:

Answer:

5/7

Step-by-step explanation:

hope this helps

Answer:

B. perpendicular to a line at a point on the line

Step-by-step explanation:

that's how you would construct a perpendicular line to the point that is on the line

Answer:

Step-by-step explanation:

Given the equation of the weight of an empty shipping box expressed as:

100t + 300 = w

We are to select all possible solutions for (t,w) to the equation 100t + 300 =w. From the equation the input variable is t which serves as the DOMAIN while the output variable is w which serves as the RANGE. To get the possible of t, we will need to find the values of t that will make the function to exist. Since the number of t shirts are always positive, this means that the value of t exists on all positive real numbers. Hence the Domain is expressed as:

Domain: [0, ∞)

Since the weight w must also be positive, the lowest value of w we can get it at when t = 0. Substitute into the equation:

100t + 300 =w

100(0) + 300 = w

300 = w

w = 300

Hence the minimum output (weight) that we can have is 300, the Range of the expression will be expressed as:

Range: [300, ∞)

Answer:

the answer is c

Step-by-step explanation:

i just finished the quiz

He did not eliminate the same variables in steps 1 and 2

Answer:

Trump is ugly

Step-by-step explanation:

Trump sucks

Answer:

he should use the 5/8 inch wide plank

Step-by-step explanation:

9/16 = 4.5/8 which is smaller than 5/8

The answer will be prime

Answer:

[tex]x = \frac{-15}{2}[/tex]

Step-by-step explanation:

to answer these types of questions, we want to isolate the variable to one side of the equation

[tex]4x + 9 = 2x - 6\\4x - 2x = -6 - 9\\2x = -15\\x = \frac{-15}{2}[/tex]

Answer:

x = -7.5 :)

Step-by-step explanation:

4x + 9 = 2x - 6

-2x         -2x

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

  2x + 9 =  -6

        -9      -9

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

     2x = -15

     ---     ----

     2       2

x = -7.5  

Answer:

-1

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.