Solve for a. Show your work plz.

Answer:

length is 5

width is 4

Step-by-step explanation:

Answer:

98% C.I. = [-0.1270, 0.0994]

Step-by-step explanation:

Here

p1= proportion of men smokers

p1= 45/175= 0.2571

p2= proportion of women smokers

p2= 42/155= 0.2709

1)  Choose the significance level ∝= 0.02

2) The formula for confidence interval is

(p1^- p2^)- z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))

and

(p1^- p2^) z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))

3)  The z value is 2.05

4) Calculations:

(p1^- p2^)- z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))

Putting the values

= 0.2571-0.2709)(-2.05) sqrt ( 0.2571(1-0.2571)/175+ 0.2709(1-0.2709)/155)

=-0.1270 ( using calculator)

And

(p1^- p2^)z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))

Putting the values

= 0.2571-0.2709)(2.05) sqrt ( 0.2571(1-0.2571)/175+ 0.2709(1-0.2709)/155)

=0.0994  ( using calculator)

and Putting ± 2.05 in the confidence interval formula we get limits (-0.1270, 0.0994)

Answer:

20 ft

Step-by-step explanation:

the 6 ft persons shadow was reduced by a factor of 4 for the flagpole shadow being 5 ft long just multiply by 4 to get 20 because 20/4=5

Answer:

4cm because area is length times width

Step-by-step explanation:

Answer:

4 cm2

Step-by-step explanation:

[tex]area = side {}^{2} = (2cm) {}^{2} = 4cm {}^{2} [/tex]

Answer:

x = 9

y = 5

Step-by-step explanation:

<N and < M are opposite equal sides. So they are equal as well. In addition, the base is equal to the other 2 sides. That means you are dealing with an equilateral triangle. All the angles are equal to 60 degrees.

7x - 3 = 60 degrees     Add 3 to both sides

      3      3

7x = 63                         Divide by 7

x = 63/7

x = 9

Just for the sake of completeness, we'll find y

11y + 5 = 60                 Subtract 5 from both sides

     -5      -5

11y = 55                       Divide by 11

y = 55 /11

y = 5

Answer:

ADORABLE!!

Step-by-step explanation:

Answer:

lol true thats a fact

Answer:

0.2

Step-by-step explanation:

5/25 as a decimal is 0.2.

1/5=0.2

just reduce it to 1/5 and divide it into a decimal

Answer:

226.1946711 cubic ft

Step-by-step explanation:

volume of cylinder = πr²h

diameter (d)=6ft

r= d/2 = 6/2=3ft

h= 8ft

putting all values in the formula and calculating the volume

[tex]3x^2-5x=2[/tex]

Answer:

( o ,-1 ) y- intercept

( 2 , - 1 ) extra point

Step-by-step explanation:

ax2+bx+cy=ax2bx2

Answer: Well first find out why that person is mocking you or holds a grudge against you. Try talking to that person. If that doesn't work, get a friend to help. To be honest, you can also always just ignore that person, there are many mean people out there.

Step-by-step explanation:

Answer:

can I get a hiaaa

How was the government able to make children go to residential school?

Answer:

AC = 8.2 m

AD = 8.57 m

Step-by-step explanation:

The answers were rounded to the nearest hundredth, hope this helps!

Answer:

Hay 140 alumnos en dicha aula.

Step-by-step explanation:

Primero, debes encontrar la cantidad de alumnos que aprobaron que corresponde a 4/5 usando una regla de tres teniendo en cuenta que sabes que 1/5 corresponde a 21 que son los estudiantes que no aprobaron:

1/5  → 21

4/5 →  x

x=(4/5*21)/1/5

x=(84/5)/(1/5)

x=84*5/5*1

x=420/5

x=84

Ahora, puedes sumar el número de estudiantes que aprobaron con el número de estudiantes que no aprobaron para encontrar el total que estudiantes que asistieron al examen:

84+21=105

Después, dado que sabes que 105 estudiantes corresponde a 3/4 de los alumnos en un aula, puedes usar una regla de tres para encontrar el número de estudiantes en el aula:

3/4 → 105

1     →   x

x=(1*105)/(3/4)

x=(105/1)/(3/4)

x=105*4/1*3

x=420/3

x=140

De acuerdo a esto, la respuesta es que hay 140 alumnos en dicha aula.

Answer:

104 ounces

Step-by-step explanation:

40+64= 104

.......

Answer:

Step-by-step explanation:

Verify the answer options

A. −3x⁵ + 4x³ + 10x²

B. −8x + 4x⁴ + 3x³

C. x⁴ + 4x³ + 10x⁴

D. x⁶ + 4x³ + 10x⁷

Answer:

[tex] { - 3x}^{5} + {4x}^{3} + {10x}^{2} [/tex]

Step-by-step explanation:

For a polynomial to be in standard form, it must satify the conditions below:

1) It must not contain like terms

2) The exponents (powers) must be written in descending order

That is, the polynomial must be of the form

[tex]f(x) = {ax}^{n} + {bx}^{n - 1} + {cx}^{n - 2} + . \: . \: . \: . \: . \: mx + n[/tex]

Where a, b, c, m, n, are coefficients/constants

The only option that satifies the above conditions, and follows the pattern f(x) shown is:

[tex]{ - 3x}^{5} + {4x}^{3} + {10x}^{2} [/tex]

Answer:

B) Rotation will result in the object and image being congruent.

Answer:

C Enlargement

Step-by-step explanation:

enlargement because it becomes wider and larger

Pattern

Step-by-step explanation:

I know there's a pattern but there's a cutie watching this rn hey lol

Answer:

1/12

Steps:

1 - 2/3 = 1/3

1/3 / 4 = 1/3 × 1/4 = 1/12

Answer:

3x + 2 = 3

Step-by-step explanation:

3x + 2 = 3 Subtract 2 from both sides

3x = 1 Divide both sides by 3

x = 1/3

Answer:

It is not a function

Step-by-step explanation:

In function, each x-value has only one y-value

Here the x-value of 7 has two y-values of -3 and -1

Answer:

6 months

Step-by-step explanation:

615=95n+45

-45 from 615 =570

570=95n

divide both side by 95

Answer:

6 Months

Step-by-step explanation:

95 x 6 is 570. If you add the set up fee, it comes down to 615 dollars.

Hope this helps! Have a great rest of your day/night. :)

Answer:

125, 20

Step-by-step explanation:

Answer:

1.95

Step-by-step explanation:

X= 10

2×10squared(10-5)/ 10×10

2×100-5/10×10

200-5/10×10

195/10×10

195/100

1.95

Answer:

11:00

Step-by-step explanation:

This is easier than I thought...

So 8:30+2 is 10:30

...and now we have 1/2 left.

1/2 in this case of time would be 30

So, 10+30+30 would be 10:60

Now all we have to do is simplify it

60 minutes= 1 hour

So...

10:60-60=10

10+1=11

11 AM is the correct answer!

Hope this helps! :D

Answer:

B. adjacent and D. supplementary

Answer:

54.8 (rounded to the nearest tenth from 54.76558202)

Step-by-step explanation:

Using the Cosine equation (CAH) you type in a calculator "cos(x) = 4.5/7.8".

This will get you the answer if typed in a calculator and hitting "SOLVE".

Answer:

(3 x)/(5 x + 2)

Step-by-step explanation:

Simplify the following:

(3 x^2)/(5 x^2 + 2 x)

Hint: | Factor common terms out of 5 x^2 + 2 x.

Factor x out of 5 x^2 + 2 x:

(3 x^2)/(x (5 x + 2))

Hint: | For all exponents, a^n a^m = a^(n + m). Apply this to (3 x^2)/(x (5 x + 2)).

Combine powers. (3 x^2)/(x (5 x + 2)) = (3 x^(2 - 1))/(5 x + 2):

(3 x^(2 - 1))/(5 x + 2)

Hint: | Evaluate 2 - 1.

2 - 1 = 1:

Answer:  (3 x)/(5 x + 2)

Answer:

The answer is [tex]\frac{3x}{5x+2}[/tex]

Step-by-step explanation:

1) Factor out the common term x.

[tex]\frac{3x^{2} }{x(5x+2)}[/tex]

2) Simplify.

[tex]\frac{3}{5x+2}[/tex]

Thereofor, the answer is Option D.

Answer:

Top left: > Top right: > Bottom left: < Bottom right: >

Step-by-step explanation:

Answer:

-0.25 > -0.3

9.999 > 9.975

3(5/8) < 30/8

10(2/3) < 61/6