There are 25 students in a class. 20% of the the students are in a club. How many students are in a club?​

Answer: Estimate the length of each line segment in inches. Then  

measure it to the nearest —

1

2

— inch.

2.

Estimate: Actual:  

Estimate the length of each line segment. Then  

measure it to the nearest —

1

4

— inch.

3.

Estimate: Actual:  

4.

Estimate: Actual:  

Draw a line segment that has the given length.

5. 4 inches

6. 3—1

4

— inches

7. 4—

1

2

— inches

8. —3

4

— inch

9. Marta wants to make 4 necklaces that are the same  

length. She asks her friends to cut the string for the  

necklaces 15 paper clips long. Would all the  

lengths be the same? Explain your thinking.  

Answers will  

vary.

Answers will  

vary.

Answers will  

vary.

3 inches

2—

1

2

— inche

Step-by-step explanation:

Answer:

0.036 or 3.6%

Step-by-step explanation:

First you must set up the equation:

(|14.5 - 14|) / 14

0.5 / 14

0.036 x 100%

3.6%

Another Problem For Help With More Explanation:

Mathew goes to the store and gets 10 bananas, which he expects to be 4.1 pounds, however it turned out the actual weight was 3.9 pounds. What was the percent error of the measurement, to the neartest tenth of a percent?

So first you must take the 2 values you need out, which would be 4.1 pounds (the expected value) and 3.9 pounds (the actual value).

You then must set up the equation which is (|X-Y|)/Y.

X is the actual value, which would be 3.9 pounds and Y is the expected value, which would be 4.1.

You then plugin the numbers so you get (|3.9-4.1|) / 4.1.

Then follow PEMDAS, which would be the parantheses, so it would be |-0.2| / 4.1.

The absolute value of -0.2 is 0.2, since the absolute value makes it positive, no matter if it was already negative or positive.

You are then left with 0.2 / 4.1, which you then do the math for, with it equaling 0.048780.

You then do 0.048780 x 100%, to get the percent, which would be 4.8780%, however you would just need to round to the tenth of a percent, so it would be 4.9%. Hope this extra problem helps you understand the topic more! :}

Answer:

5:20 to 9:20

Step-by-step explanation:

Answer:

The numbers are best written as,  

                        (1.2 x 10⁻²)(3.65 x 10⁸)

If we multiply the bases of the scientific notations, we get an answer of 4.38. There exists a rule which states that for exponents of the same number which are multiplied, we add up the exponents. Thus, our final answer would be,

                              4.38 x 10⁶

Step-by-step explanation:

Answer:

240 sq feet

Step-by-step explanation:

for a rectangle

area = length * width

a = 20 * 12

a = 240

240 sq feet

Answer:

5 watts

Step-by-step explanation:

Answer:

Step-by-step explanation:

y = 1 is a horizontal line

Vertex is halfway between the directrix and focus on a vertical line through x = (-5, 3).

(1 + 3)/2 = (-5, 2)

The shortest distance from the directrix to the focus is 3 - 1 = 2 units

so points (-5 - 2, 3) = (-7, 3) and  (-5 + 2, 3) = (-3, 3) are on the parabola.

The vertex form of a parabola is

y = a(x - h)² + k

y = a(x - (-5))² + 2

y = a(x + 5)² + 2

plugging in one of the other known points

3 = a(-7 + 5)² + 2      or      3 = a(-3 + 5)² + 2  

1 = a(-2)²                             1 = a(2)²

a = 1/4                                 a = 1/4

y = ¼(x + 5)² + 2

to find the standard form, expand the vertex form

y = ¼(x² + 10x + 25) + 2

y = 0.25x² + 2.5x + 6.25 + 2

y = 0.25x² + 2.5x + 8.25

or

4y = x² + 10x + 33

Step-by-step explanation:

The power 2 after 4.05 means that 4.05 should times itself twice, which means

[tex] {4.05}^{2} = (4.05)(4.05) \\ = 16.4025[/tex]

Answer:

Step-by-step explanation:

1 reflection across the y axis

followed by

2 translation two units left

(-4, 6) reflect to (4, 6) translate (2, 6)

(-2, 2) reflect to (2, 2) translate (0, 2)

(-6, 2) reflect to (6, 2) translate (4, 2)

could also be done in one step by reflecting across x = -1

The difference of given expressions is 6x+14.

To subtract an algebraic expression from another, we should change the signs (from '+' to '-' or from '-' to '+') of all the terms of the expression which is to be subtracted and then the two expressions are added.

Given that, 8(x+3)-2(x+5)

8x+24-2x-10 (By distributive property of multiplication)

(8x-2x)+(24-10) (Grouping like terms)

6x+14

Therefore, the difference of given expressions is 6x+14.

To learn more about the subtraction of expression visit:

https://brainly.com/question/12959016.

#SPJ2

Step-by-step explanation:

= 20/3 ÷ 1/6

= 20/3 × 6

= 120/3

= 40

Answer:

[tex] \sf 40[/tex]

Step-by-step explanation:

[tex] \sf = \frac{20}{3} \div \frac{1}{6} [/tex]

[tex] \sf = \frac{20}{3} \times \frac{6}{1} [/tex]

[tex] \sf = \frac{20 \times 6}{3 \times 1} [/tex]

[tex] \sf = \frac{120}{3} [/tex]

[tex] \sf = 40[/tex]

Answer:

see below

Step-by-step explanation:

We can use the equation

y = -a f(-b (x-h)) +k

The first negative is a reflection about the x axis

a is a horizontal stretch if it is >1 or a compression if less than 1

The negative inside the function is a reflection about the y axis

b is a horizontal compression if >1 or a compression if less than 1

h shifts the function left ( h<0) or right if (h>0)

k shifts the function up if k>0 or down if k <0

4. y = -1/3 | x - 2 | - 4

parent function |x|

    reflection about the x axis

1/3 horizontal compression

shift 2 units to the right

4 units down

y = 1 / ( x + 5) - 3

The parent function is 1/x

shift is 5 units to the left and 3 units down

6. (x - 1)^2 + (y + 2)^2 = 4

(x - 1)^2 + (y + 2)^2 = 2^2

This is a circle of radius 2

The center is shifted from the origin 1 unit to the right and 2 units down

Answer:

19, 23, 27, 31, 35, 39, 43, 47

Step-by-step explanation:

is this what you meant? if not tell me what you meant and I'll change it

Answer:

empeñemos eluden los emigró del fr¡¿&¿=£/€"=4=£64÷^£/:£=17

Answer:

The small cart has a momentum of 0.6 kg ⋅ m/s and the large cart has a momentum of 0 kg ⋅ m/s

I just took the test.

Answer:

fudjdhajs gf djdjsiwjsj

9514 1404 393

Answer:

  x = -8 or 2

Step-by-step explanation:

Compare your equation to the standard form equation.

  -x^2 -6x +16 = 0 . . . . . . your equation

  ax^2 +bx +c = 0 . . . . . . standard form equation

Identify the values of 'a', 'b', and 'c'.

  a = -1

  b = -6

  c = 16

Fill in these values in the quadratic formula and do the arithmetic.

  [tex]x = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\dfrac{-(-6)\pm\sqrt{(-6)^2-4(-1)(16)}}{2(-1)}=\dfrac{6\pm\sqrt{100}}{-2}\\\\x=-3\pm5=\{-8,2\}[/tex]

The solutions are x = -8 and x = 2.

Answer:

B 20in

Step-by-step explanation:

e2021

Answer:

f(x)=-x-3

Step-by-step explanation:

reflection in the x-axis

f(x) = x ---> f(x) = -x

translation 3 units down:

f(x) = -x ---> f(x) = -x - 3

Answer:

The monthly amount of water used per household in a small community is normally distributed with mean 7,069 gallons and standard deviation 58 gallons. Find the three quartiles for the amount of water used.

Answer:

x=0 and x=2

Step-by-step explanation:

[tex]\frac{x}{5} = \frac{x^{2}}{4x+2}[/tex]

4x+2 can't equal 0, is 4x+2=0, then x=-1/2, none of the answers are -1/2 so none are extraneous

x=0 is a solution, but x=-2 isn't, x=2 works (i checked this by plugging the solutions into the equation

Answer:

(C) x = 0 and x = 2

Answer:

Step-by-step explanation:

Width = w

Length = w + 6

Area = 112 sq. cm

length * width = 112

(w +6 ) *w = 112

w²  +6w -112 = 0

Sum = 6

Product = -112

Factors = 14 , -8    {14 - 8 = 6 , (-8)*14 = -112}

w² +  14w - 8w -112 = 0

w(w + 14) - 8(w + 14)=0

(w +14)(w -8) = 0   {Ignore w + 18 as measurement won't be negative}

w - 8 = 0

w = 8 ft

Length = 8 + 6 = 14 ft

Answer:

slope = 8 or 8/1

depending on your teacher

y int = -12

because the formula is

Y = mx + b

m = slope

y int = b

hope this helps

Answer: y=-x-1

Step-by-step explanation:

To find the answer, 5 and -6 have to be substituted in the place of x in the equation y = -x + b(The slope has to be the same because the line is parallel). -6 = -5 + b, b = -1. This means that the equation is y = -x - 1.

Answer: 7,035

Step-by-step explanation: first convert 5% to a decimal, 0.05

Then multiply that to the subtotal which is 6,700: 335

Last add 335 to the subtotal. 6,700+335+7,035

Hope this helps!

Answer:

63.3232

Step-by-step explanation:

Answer:

she needs to deposit $40.20

Step-by-step explanation:

Answer:

[tex]\bf\mathsf{X-intercept=(\frac{25}{3},\:0)}[/tex]

Y-intercept = (0, -5)

Step-by-step explanation:

Given the linear equation in standard form,  3x - 5y = 25, for which we must determine its x- and y-intercepts.

It is essential to understand what the intercepts mean relative to the given equation and its location on the graph.

The x-intercept is the point where the graph crosses the x-axis. Hence, its coordinates are often represented by (a, 0). Thus, the x-intercept provide the value of x when the value of the y-coordinate is 0.

Now, we can solve the x-intercept by setting y = 0:

3x - 5y = 25

3x - 5(0) = 25

3x - 0 = 25

3x = 25

Divide both sides by 3 to solve for x:

[tex]\large\mathsf{\frac{3x}{3}\:=\:\frac{25}{3}}[/tex]

[tex]\bf\mathsf{x=\:\frac{25}{3}}[/tex]

Therefore, [tex]\bf\mathsf{X-intercept=(\frac{25}{3},\:0)}[/tex] .

The y-intercept is the point where the graph crosses the y-axis. Hence, its coordinates are often represented by (0, b ). Thus, the y-intercept provide the value of y when the value of the x-coordinate is 0.

Now, we can solve the y-intercept by setting x = 0:

3x - 5y = 25

3(0) - 5y = 25

0 - 5y = 25

-5y = 25

Divide both sides by -5 to solve for y:

[tex]\large\mathsf{\frac{-5y}{-5}\:=\:\frac{25}{-5}}[/tex]

y = -5

Therefore, the y-intercept is (0, -5).

Answer:

0.002+0.05+0.5+9+50+100

Answer:

i think its 96

Step-by-step explanation: