- 5.8 + (- 2.2) - (-2.5)

Step-by-step explanation:

9 months

answer:

9 months

step-by-step explanation:

honestly this problem isnt super super complicated as we need to do is use some multiply tables! :)

since we know that

4*3

= 12

and in this problem

1/4

just means

= 3 months

so

3*3

= 9 months

hope this helps you! :)

Answer:

472.5

Hope this helps

Answer:

To get the table we have to find the following probabilities

p(A), p(B), p(not A), p(not B)

A = suspect has blond hair

B = suspect is blond

p(B) = 0.4

probability of identifying correctly = AIB = 0.90

prob of wrongful identification =  AlB' = 0.2

Probability of A = p(AIB) *p(B) + p(AIB')*p(B')

= 0.9 * 0.4 + 0.2 *(1-0.4)

= 0.48

p( not A) = 1-0.48 = 0.52

p(not b) = 1-0.40 = 0.6

the table  has been added as an attachment

2. probability of being blond = 0.9 * 0.4 / 0.48 = 0.75

3. p(A∩B) =  0 .90 * 0.4 = 0.36

the venn diagrams an attachment also

Answer:

p + 30 = 20

Step-by-step explanation:

we can add 30 to both sides to make this an addition equation:

p - 20 = -30 (now add 30 to both sides)

p - 20 + 30 = 0 (then, add 20 to both sides)

p + 30 = 20 (this would be the addition equation)

Answer:791.68

Step-by-step explanation:

2*pi*6^2 + 15 *pi * 12 = 791.68

Answer:

yes

Step-by-step explanation:

Answer:

i dont know maybe

Step-by-step explanation:

idc

Answer:

a. ? % of 75 = 5     =     15

b. ? % of 28 = 140 =   500

c.? % of 100 = 40   =   40

d.? % of 200 = 15   =    7.5

Hope it helped...

Have a great day : )

Answer:

The surface area is multiplied by 4/9.

Step-by-step explanation:

you welcomeeeeeeeeeeeeeeeeeeeeeeeee

First lets find the surface area of cone without effect

Given:

Radius of cone = 3 units

Slant height of cone = 5 units

To find:

Surface area of cone

Steps:

Surface area of a cone = πr (r + l)

= π × 3(3 + 5)

= π × 3 (8)

= π × 24

= 24π unit²

Now lets find the surface area of cone with effect

Given:

Radius of cone = 3 × 3/2 = 9/2 = 4.5 units

Slant height of cone = 5 × 3/2 = 15/2 = 7.5 units

To find:

Surface area of cone

Steps:

surface area of cone = πr(r + l)

= π × 4.5( 4.5 + 7.5 )

= π × 4.5( 12 )

= π × 54.0

= 54π

Since we know the surface area of the cones before and after affect now lets find effect

Given:

Surface area of cone before affect = 24π

Surface area of cone after affect = 54π

To find:

Effect on the surface area of cone before and after change

Steps:

By dividing the surface area of cone after and before affect will give us the effect on the cone

54π / 24π

= 54/24              (pi gets canceled out)

= 27/12

= 2.25

Therefore the area of cone is multiplied by 2.25 after effect.

Happy to help :)

If you need any help, please feel free to ask.

Answer:

30x40=3inx4in    

50x50=5inx5in

40x20=4inx2in

30x40=3inx4in

30x30=3inx3in

35x40=3.5inx4in

Step-by-step explanation:

Answer:

pp

Step-by-step explanation:

lol

lol

Answer:

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">

 <mrow>

   <mi>w</mi>

 </mrow>

 <mrow>

   <mn>2</mn>

 </mrow>

 <mo>=</mo>

 <mo>&#x2212;</mo>

 <mrow>

   <mn>5</mn>

 </mrow>

 <mfrac>

   <mrow>

     <mi>w</mi>

   </mrow>

   <mrow>

     <mn>4</mn>

   </mrow>

 </mfrac>

 <mo>+</mo>

 <mfrac>

   <mrow>

     <mn>1</mn>

   </mrow>

   <mrow>

     <mn>2</mn>

   </mrow>

 </mfrac>

</math>

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

y-y1=m(x-x1)

y-1=4(x-4)

Answer:

66

Step-by-step explanation:

hope this help an i  will not ask if anyone a boy or girl.

Answer:

The answer is C, The use of Pi can be used to find the ratio of the diameter and circumference of a circle

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

9514 1404 393

Answer:

  45 or 155

Step-by-step explanation:

At a speed of 11 units per minute, in 5 minutes the bug will run 5×11 = 55 units.

If the bug is running in the positive direction, it will end at location ...

  100 +55 = 155

If the bug is running in the negative direction, it will end at location ...

  100 -55 = 45

At 7:20 pm, the bug will be on the point 45 or 155.

9514 1404 393

Answer:

Step-by-step explanation:

There are zeros at x=-1 and x=4, so numerator factors of (x +1) and (x -4).

There are vertical asymptotes at x=1 and x = -2, so denominator factors of (x-1) and (x+2).

There is a hole at x=-3, so another numerator factor of (x+3) to cancel the one in the denominator.

Comparing the above to the given expression for f(x) we see that ...

Answer:

Step-by-step explanation:

Answer:

Just explained a while ago

Step-by-step explanation:

Answer:

- 5

Step-by-step explanation:

"I am a negative integer greater than -6."

This eliminates any number that is less than -6, as well as any positive number.

0 > x > -6

"I am less than -2."

This narrows down the possible numbers to:

-5, -4, -3.

"I am not equal to -2 + (-1)"

-2 + - 1

-2 - 1

- 3

The number is not '-3'.

"I am not equal to 2 - 6."

2 - 6

- 4

The number is not -4.

Your number should be -5.

Hope this helps.

Solve for x when √(x ² - 4) = 1 :

√(x ² - 4) = 1

x ² - 4 = 1

x ² = 5

x = ±√5

We're looking at x ≤ 0, so we take the negative square root, x = -√5.

This means f (-√5) = 1, or in terms of the inverse of f, we have f ⁻¹(1) = -√5.

Now apply the inverse function theorem:

If f(a) = b, then  (f ⁻¹)'(b) = 1 / f '(a).

We have

f(x) = √(x ² - 4)   →   f '(x) = x / √(x ² - 4)

So if a = -√5 and b = 1, we get

(f ⁻¹)'(1) = 1 / f ' (-√5)

(f ⁻¹)'(1) = √((-√5)² - 4) / (-√5) = -1/√5

The sign must be negative; see the attached plot, and take note of the negatively-sloped tangent line to the inverse of f at x = 1.

Answer:

Step-by-step explanation:

5 min = 2.90

xmin = 7.86

with cross multiplication;

xmin = 7.86*5min/2.90

x = 13.55=14.0

therefore x = 14min

so he will make of 14min long

Answer:

b

Step-by-step explanation:

plato/edm fammm lol

Answer:

A sample of 385 is needed.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population, which is the square root of the variance, and n is the size of the sample.

Assume the variance is known to be 3.61.

This means that [tex]\sigma = \sqrt{3.61}[/tex]

How large of a sample would be required in order to estimate the mean number of reproductions per hour at the 95% confidence level with an error of at most 0.19 reproductions?

A sample of n is needed.

n is found when [tex]M = 0.19[/tex]. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]0.19 = 1.96\frac{\sqrt{3.61}}{\sqrt{n}}[/tex]

[tex]0.19\sqrt{n} = 1.96\sqrt{3.61}[/tex]

[tex]\sqrt{n} = \frac{1.96\sqrt{3.61}}{0.19}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{3.61}}{0.19})^2[/tex]

[tex]n = 384.16[/tex]

Rounding up

A sample of 385 is needed.

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

None of the choices is correct. Are you sure that the question was written accurately?

If p is the REGULAR price, not the same price, then there are three correct answers:

sale price = p-0.15p = 0.85p = $420.75

Answer:

b, c, d

Step-by-step explanation:

i took the quiz and these were the correct answers. ur welcome in advance