I need these two answered ASAP plzzz I will give brainiest

Answer:

The answer is 13.

Step-by-step explanation:

Angle ABC and PQR are equivalent, although angle PQR is just scaled down by a factor of 9. Line CA is 54, line PR is 6, 54/6=9. So, line PQ has to be equal to 9 because 81/9=9.  So you input all values into the expression until you get the product of 9.

Work: 2(13)-17=9, so 13 is your answer.

Answer:

I'm rusty on this but I believe:

the median is 54

the lower quartile = 16

the upper quartile is 72

Answer:

Adults =58, Students=92

Step-by-step explanation:

Answer:

Part 1:

P₂(0.07)=0.93245≈[tex]e^{-0.07}[/tex]

Part 2:

Error=[tex]0.5618*10^{-4}[/tex]

Step-by-step explanation:

Given:

[tex]f(x)=e^{x}\\f(-0.07)=e^{-0.07}[/tex]

P₂(x)=[tex]1-x+\frac{x^2}{2}[/tex]

Solution:

Part 1:

P₂(x)=[tex]1-x+\frac{x^2}{2}[/tex]

We have x=0.07

Put Value of x in above Equation:

P₂(0.07)=[tex]1-0.07+\frac{0.07^2}{2}[/tex]

P₂(0.07)=0.93245≈[tex]e^{-0.07}[/tex]

Part 2:

[tex]e^{-0.07}[/tex]=0.93239382 (Calculated using Calculator)

Error=|[tex]e^{-0.07}[/tex]-P₂(0.07)|=|0.93239382-0.93245|=0.00005618

Error=|0.93239382-0.93245|

Error=0.00005618

Error=[tex]0.5618*10^{-4}[/tex]

Answer:

V = 125 in^3

Step-by-step explanation:

A cube has 6 sides, and the area of each is equal to the side length squared:

A = 6x^2

A is given as 150 cm^2, and so is equal to 6x^2.  Thus, x = the side length = 5 cm.

The volume of the same cube is given by V = x^3, which here is 5^3 in^3, or V = 125 in^3

Answer:

173.26

Step-by-step explanation:

Answer:

D. 100

Step-by-step explanation:

1. Find the z-score: 165-176/11.4 = -1.2

2. Find the percentage of the z-score. Here it's 16.85%

3. Because we are searching for the amount of members that weigh MORE than 165 pounds and not LESS, we need to find the greater percentage by subtracting 16.85% from 100% which is 83.15%. This is the percentage of people that weigh more than 165 pounds.

4. Multiply the percentage by the number of members: 83.15%*120 = 99.78

5. Round it to a whole number because someone can't be 0.78 of a person. You get 100 members.

Also, I took the test :)

Step-by-step explanation:

sorry i am unable to understand what it is asking but if you inform me more i would love to help

Answer:

$9.35

Step-by-step explanation:

Find the sale price by multiplying 13.35 by 0.7, since this will be 70% of the original price

13.35(0.7)

= 9.345

This rounds to approximately 9.35

So, you will pay $9.35

Answer:

9.35  would be the answer!

Step-by-step explanation:

i would really appreciate a brainliest if this helped! <3

Answer:

a) A sample of 198 must be drawn.

b) Smaller, because the confidence level is smaller.

Step-by-step explanation:

Question a:

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 - 0.999}{2} = 0.0005[/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 - 0.0005 = 0.9995[/tex], so Z = 3.291.

Now, find the margin of error M as such

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

How large a sample must be drawn so that a 99.9% confidence interval for u will have a margin of error equal to 4.1?

This is n for which M = 4.1. So

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

[tex]4.1 = 3.291\frac{17.5}{\sqrt{n}}[/tex]

[tex]4.1\sqrt{n} = 3.291*17.5[/tex]

[tex]\sqrt{n} = \frac{3.291*17.5}{4.1}[/tex]

[tex](\sqrt{n})^2 = (\frac{3.291*17.5}{4.1})^2[/tex]

[tex]n = 197.3[/tex]

Rounding up:

A sample of 198 must be drawn.

(b) If the required confidence level were 95%, would the necessary sample size be larger or smaller?

We have that:

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

Solving for n

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

That is, n and z are directly proportion, meaning that a higher value of z(higher confidence level) leads to a higher sample size needed.

95% < 99.9%, so a smaller confidence interval.

Smaller, because the confidence level is smaller.

Answer:

a. $311,555.26

b. $500,000

c. $188,444.74

Step-by-step explanation:

The computation is shown below:

a. Here we have to determine the present value

Given that

PMT = $25,000

NPER = 20

RATE = 5%

FV = $0

The formula is shown below:

= -PV(RATE;NPER;PMT;FV;TYPE)

after applying the above formula, the amount that need in the beginning is $311,555.26

b. The total money should be

= $25,000 × 20 years

= $500,000

c. The amount of interest is

= $500,000 - $311,555.26

= $188,444.74

.Answer:

The answer is .31

Step-by-step explanation:

When there is a “th” at the end of the number it signals that the number is to the right of the decimal.

Tenths are immediately to the right of the decimal, next is hundredths, then thousandths, and so on.

Answer:

x=-1

Step-by-step explanation:

use math a way

(Простите, пожалуйста, мой английский. Русский не мой родной язык. Надеюсь, у вас есть способ перевести это решение. Если нет, возможно, прилагаемое изображение объяснит достаточно.)

Use the shell method. Each shell has a height of 3 - 3/4 y ², radius y, and thickness ∆y, thus contributing an area of 2π y (3 - 3/4 y ²). The total volume of the solid is going to be the sum of infinitely many such shells with 0 ≤ y ≤ 2, thus given by the integral

[tex]\displaystyle 2\pi \int_0^2 y \left(3-\frac34 y^2\right) \,\mathrm dy = 2\pi \left(\frac32 y^2 - \frac3{16} y^4\right)\bigg|_0^2 = 6\pi[/tex]

Or use the disk method. (In the attachment, assume the height is very small.) Each disk has a radius of √(4/3 x), thus contributing an area of π (√(4/3 x))² = 4π/3 x. The total volume of the solid is the sum of infinitely many such disks with 0 ≤ x ≤ 3, or by the integral

[tex]\displaystyle \pi \int_0^3 \left(\sqrt{\frac43x}\right)^2 \,\mathrm dx = \frac{2\pi}3 x^2\bigg|_0^3 = 6\pi[/tex]

Using either method, the volume is 6π ≈ 18,85. I do not know why your textbook gives a solution of 90,43. Perhaps I've misunderstood what it is you're supposed to calculate? On the other hand, textbooks are known to have typographical errors from time to time...

9514 1404 393

Answer:

   $6484.80

Step-by-step explanation:

Account I:

The balance in the account after 2 years will be ...

  A = P(1 +rt)

  A = $3000(1 +0.04(2)) = $3240

__

Account II:

The balance in the account after 2 years will be ...

  A = P(1 +r)^t

  A = $3000(1 +0.04)^2 = $3244.80

__

The sum of the two balances after 2 years is ...

  $3240 +3244.80 = $6484.80

Answer:

Sabrina read 50 pages on the third day.

Step-by-step explanation:

Since Sabrina read a total of 185 pages in three days, and on the first day, she read 85 pages, while on the second and third days, she read the same amount, to determine how many pages did she read on the third day the following calculation must be performed:

(185 - 85) / 2 = X

100/2 = X

50 = X

Therefore, Sabrina read 50 pages on the third day.

Answer:

ahfjajsjdjadkfjfjakskhsk

Answer:

13.5

Step-by-step explanation:

I am not 100% sure but I really hope this helps you.

Answer:7ft

Step-by-step explanation:

i got it right

Answer:

94.2 ft of fencing

Step-by-step explanation:

To answer this, find the circumference, C, of the garden, using the circumference formula C = 2(pi)r.

Here, with r = 15 ft, we get C = 2(3.14)(15 ft) = 94.2 ft of fencing will enclose this garden.

Answer:

a

Step-by-step explanation:

To prove congruence

1 ∠ A ≅ ∠ C → given

2 ∠ DEA ≅ ∠ BEC → vertically opposite angles

3. AE ≅ EC → given

We then have 2 angles and the included side ( side between the 2 angles )

congruent in both triangles, thus Δ AED ≅ Δ CEB ( ASA postulate )

Zoes' error was in assuming ∠ DEA ≅ ∠ BEC was given

Zoe used an invalid reason to justify the congruence of a pair of sides or angles.

Option a is correct.

From given diagram it is observed that,

Line segment AD and CB are parallel and AC is transversal line. So that alternate angles A and C are equal.

                            [tex]\angle A=\angle C[/tex]

When two lines intersect at any point then vertically opposite angles are equal.

So that,          [tex]\angle DEA=\angle BEC[/tex]

Given that ,   [tex]AE=EC[/tex]

The Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.

Hence, both triangles are congruent to each other.

Learn more:

https://brainly.com/question/25920974

9514 1404 393

Answer:

  x = y = (√10)/2

Step-by-step explanation:

In an isosceles right triangle, the side lengths are equal, and they are equal to (√2)/2 times the hypotenuse length.

  x = y = (√5)(√2)/2

  x = y = (√10)/2

Answer:

x = y = [tex]\frac{1}{2}[/tex] [tex]\sqrt{10}[/tex]

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = [tex]\frac{\sqrt{2} }{2}[/tex]

sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{\sqrt{5} }[/tex] = [tex]\frac{\sqrt{2} }{2}[/tex] ( cross- multiply )

2x = [tex]\sqrt{10}[/tex] ( divide both sides by 2 )

x = [tex]\frac{1}{2}[/tex] [tex]\sqrt{10}[/tex]

Since the base angles are 45° then the triangle is isosceles with both legs congruent , thus

x = y = [tex]\frac{1}{2}[/tex] [tex]\sqrt{10}[/tex]

Answer:

1 one will be answer because of mahemetical reason

Answer:

25/256

Step-by-step explanation:

(5/16) / (3 1/5)

(5/16) / (16/5)

(5/16) * (5/16)

5*5 / 16*16

25/256

Answer:

x= -a2(the 2 means squared)/1-3a+a2

Step-by-step explanation:

I rll hope this helps

Answer:

x=      a^2

    ----------------

     1 - 3a + a^2

Step-by-step explanation:

Answer: john answer it correctly

Step-by-step explanation:

6.6.6_=216

Answer:

10.5 days

Step-by-step explanation:

Given :

P(d1) = 0.5 ; P(d2) = 0.3 ; P(d3) = 0.2

For d1: 2days of freedom ; then back to cell

For d2 : 3 days of freedom ; then back to cell

For d3 :, complete freedom.

Let number of days till freedom is attained = x

x = E(x | d1)p(d1) + E(x | d2)p(d2) + E(x | d3)p(d3)

x = (2 + x)(0.5) + (3 + x)(0.3) + (1 * 0.2)

x = 1 + 0.5x + 0.9 + 0.3x + 0.2

x = 2.1 + 0.8x

x - 0.8x = 2.1

0.2x = 2.1

x = 2.1 / 0.2

x = 10.5 days

Hence, expected number of days to attain freedom = 10.5 days

Answer:

f(-5) = 25

f(0) = -2

f(5) = 16

Step-by-step explanation:

Given the functions;

To get f(-5), we will use the function of x where x is less than 0 since -5 is less than zero

at where x < 0, f(x) = x^2

f(-5) = (-5)^2

f(-5) = 25

b) For f(0), where the point where x = 0, f(x)= -2

Hence the value of f(o) = -2

c) For f(5), the function where x > 5 is f(x) = 2x+6

f(x) = 2x+6

f(5) = 2(5)+6

f(5) = 16