please explain how you get the answer

Answer:

2.22

Step-by-step explanation:

Answer:

area of one of the basses is 1.44 square feet

area of each lateral rectangular face is 0.96 square feet

SURFACE AREA OF THE PAPERWEIGHT IS 6.72 square feet.

Step-by-step explanation:

Answer:

The other person is 100% right! Give them brainliest :)

Step-by-step explanation:

solution

in a right angle triangle all angles are = 90

but since they did not give us any angle, we should know that the two angle that will make up 90 will be 45

so it will be = tan 45 = a

15

15tan45 = a

a = 15

so now x^2 = 15^2 + 6^2

x^2 = 225 + 36

x^2 = 261

x = 16.2

The interval of systolic blood pressure will be between 155 to 95

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

From the question, we are told that

Mean  x=125

Standard deviation = 10

The Percentage for men =99.75%

Generally, the empirical rule 68%,95% and 99.7% of data value lay b/w 1,2,3 standard deviation of mean  

Standard deviation n= 10

Mean x= 125

Generally, the interval  of systolic blood pressure for middle 99.7 of male G is mathematically given as

G = Mean ± (3x \(\sigma\))

G= 125 ±  (3 x 10)

G= 125 ±  (30)

G = 155 and 95

Hence the interval of systolic blood pressure will be between 155 to 95

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Answer:

Step-by-step explanation:

The conventional B/C ratio using the expected EUAC (Equivalent Uniform Annual Cost) can be computed as 1 / EUAC

To calculate the conventional B/C ratio using the expected EUAC, we need to determine the present value of costs and benefits over the project's life and then compare them.

Cost Data:

Year 1: $10,000

Year 2: $8,000

Year 3: $6,000

Benefit Data:

Year 1: $15,000

Year 2: $12,000

Year 3: $9,000

Life Probability Distribution:

Year 1: 0.2

Year 2: 0.5

Year 3: 0.3

To calculate the present value of costs and benefits, we multiply each cash flow by the respective probability and discount it to present value. Assuming a discount rate of r%, the present value (PV) can be calculated using the formula:

PV = Cash Flow / (1 + r)^n

where n is the year of the cash flow.

Calculating the present value of costs:

PV(Costs) = ($10,000 / (1 + r)^1) + ($8,000 / (1 + r)^2) + ($6,000 / (1 + r)^3)

Calculating the present value of benefits:

PV(Benefits) = ($15,000 / (1 + r)^1) + ($12,000 / (1 + r)^2) + ($9,000 / (1 + r)^3)

The expected EUAC can be calculated as the sum of PV(Costs) divided by the sum of PV(Benefits), considering the probabilities:

EUAC = (PV(Costs) * 0.2 + PV(Costs) * 0.5 + PV(Costs) * 0.3) / (PV(Benefits) * 0.2 + PV(Benefits) * 0.5 + PV(Benefits) * 0.3)

Finally, the conventional B/C ratio is obtained by taking the inverse of the EUAC:

B/C ratio = 1 / EUAC

The conventional B/C ratio using the expected EUAC for the given cost, benefit data, and life probability distribution can be computed using the provided calculations. This ratio allows for a comparison between the present value of costs and benefits over the project's life, considering the probability distribution.

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Answer:

To determine the x-intercept, we set y equal to zero and solve for x. Similarly, to determine the y-intercept, we set x equal to zero and solve for y. ...

To find the x-intercept, set y = 0 \displaystyle y=0 y=0.

To find the y-intercept, set x = 0 \displaystyle x=0 x=0.

Step-by-step explanation:

The number of three-point baskets from the substitution method is 15.

According to the statement

we have given that the total score of basket ball is 105 points and there were as many two-point baskets as free throws (1 point each), and the number of three-point baskets was five less than the number of free throws.

And we have to find the number of three-point baskets.

So, For this purpose, we know that the

Final Score S = 105

Two point baskets T = Free throws F  -(1)

Three point baskets H = F - 5  -(2)  

Now, we know that the

The final score is equal to 3 times the number of three point baskets plus 2 times the number of two point baskets plus 1 times the number of free throws

So,

S = (3*H) + (2*T) + (1*F)  

Here we can use substitution method,

Now we can substitute

105 = 3H + 2T + 1F

105 = 3H + 2F + 1F   {substitute from equation (1)}

105 = 3(F-5} + 2F + 1F  {substitute from equation (2)}

105 =  3F -15 + 2F + 1F

105 =  6F - 15

120 = 6F

F =20

Now that we get the value of F, now we can substitute into Eqn 2 to find H

H = F -5

H = 20 - 5

H = 15

So, The number of three-point baskets from the substitution method is 15.

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Answer: The number of three-point baskets from the substitution method is 15!

Answer: The slope is undefined.

Step-by-step explanation:

The slope of a line is (y2-y1)/(x2-x1) given two points (x1,y1) and (x2,y2).

We can plug in the coordinates given.

= (-3-2)/(-1-(-1))

= -5/0

That value is undefined beacuse you cannot divide a value by 0.

Answer:

The slope is 0, and the y-intercept is (0,5)

Step-by-step explanation:

I've had this question before.

Answer:

Step-by-step explanation:

y= x+ 5

Answer:

n = 1500

Step-by-step explanation:

n + 500 = 2000

subtract 500 from both sides

n + 500 = 2000

-500         -500

n = 1500

Answer: x= 6

Step-by-step explanation:

Since the shape is a parallelogram, the angles will either be equal to each other or add up to 180.  

You can see they do not look the same so they add up to equal 180

12x + 3 +105 = 180

12x + 108 = 180

12x = 72

x = 6

Answer:

74 degrees

Step-by-step explanation:

180-59-47=74

Answer:

159

Step-by-step explanation:

10^2+(3+5)^2-5

-> 100 + (3+5)^2 -5

-> 100 + 8^2 - 5

-> 100 + 64 - 5

-> 159

Answer:

159

Step-by-step explanation:

\(10^{2} + (3+5)^{2} -5\\100 + (3+5)^{2} - 5\\100 + 64 - 5=\\159\)

10 to the second power is 100 (10x10)

3 plus 5 is 8

8 to the second power is 64 (8x8)

then just slove.

Answer:

Associative Property

Step-by-step explanation:

the way in which factors are grouped in a multiplication problem does not change the product

Example:

-6+(x+5)=(6+x)+5

hope this helps :)

To find the common difference for the arithmetic sequence formed by the series sums s2, s5, and s7, let's analyze the given information.

The sum of the second term (s2), fifth term (s5), and seventh term (s7) themselves form an arithmetic sequence.

Let's denote the second term as a + 2d, the fifth term as a + 5d, and the seventh term as a + 7d, where 'a' is the first term and 'd' is the common difference.

Using the arithmetic sequence formula for the sum of terms, we have:

s2 = (2/2) * (2a + (2-1)d) = 2a + d

s5 = (5/2) * (2a + (5-1)d) = 5a + 6d

s7 = (7/2) * (2a + (7-1)d) = 7a + 12d

Since the sums s2, s5, and s7 themselves form an arithmetic sequence, we can express their differences:

s5 - s2 = (5a + 6d) - (2a + d) = 3a + 5d

s7 - s5 = (7a + 12d) - (5a + 6d) = 2a + 6d

Now, equating the differences, we have:

3a + 5d = 2a + 6d

Simplifying the equation, we find:

a = d

Therefore, the common difference for the arithmetic sequence formed by the series sums s2, s5, and s7 is 'd'.

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When performing hypothesis tests on a population, you need to consider the significance level (alpha) and compare it to the p-value. The significance levels you've mentioned are 0.10, 0.05, and 0.01.

The null hypothesis (H 0) states that there is no significant difference between the sample mean (x-bar) and the population mean.

To determine whether to accept or reject H 0, follow these steps:

1. Calculate the test statistic (e.g., t or z) using the sample data.
2. Determine the p-value associated with the test statistic.
3. Compare the p-value to each of the given alpha levels (0.10, 0.05, 0.01).

Now, for each of the three alpha values, you can decide to accept or reject H 0 as follows:

- If the p-value is less than or equal to the alpha value, you reject H0. This means there is sufficient evidence to suggest a significant difference between the sample mean and the population mean.
- If the p-value is greater than the alpha value, you fail to reject H 0. This means there is not enough evidence to support a significant difference between the sample mean and the population mean.

On the graphs, you can indicate the critical regions (rejection zones) for each alpha value. These regions represent the extreme values where H 0 would be rejected. The critical regions depend on the type of hypothesis test (one-tailed or two-tailed) and the distribution of the test statistic.

For each alpha value, if the test statistic falls within the critical region(s), you would reject H 0; otherwise, you would fail to reject H 0. Remember to maintain a professional, concise, and friendly approach when explaining your conclusions.

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The differential equation concerning the given question is Q' = -2.5Q Q(0) = 0 . Therefore the required correct answer for the question is Option A.

a) The differential equation expressing the quantity Q(t)  of warfarin in the body, at t hours later when a patient who is suffering from Warfarin  is given a pill containing 2.5 mg of Warfarin then,

dQ/dt = -kQ
here Q(0) = 2.5

b) The differential equation the expressing the quantity Q(t)  of warfarin in the body, at t hours later when a patient who is not suffering from Warfarin  is given a pill containing 0.5 mg/hr then,

dQ/dt = -kQ + r
where Q(0) = 0
Here
k = rate constant
r = rate of administration
The differential equation concerning the given question is Q' = -2.5Q Q(0) = 0 . Therefore the required correct answer for the question is Option A.

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The rate at which Warfarin leaves the body should be proportional to the amount still in the body, not a constant rate of 2.5. So the correct differential equation for part (b) is:

Q' = 0.5 - kQ, where Q(0) = 0

Where k is the proportionality constant for the rate of elimination.

Explanation

(a) Let's denote the rate of elimination as k, where k > 0. Since the elimination rate is proportional to the amount of warfarin, we can write the differential equation as:

Q'(t) = -kQ(t)

Given that the initial condition is a 2.5 mg pill, the initial condition should be:

Q(0) = 2.5

So the differential equation for part (a) is:

Q'(t) = -kQ(t), Q(0) = 2.5

(b) In this case, the patient receives warfarin intravenously at a rate of 0.5 mg/hour. Thus, we should add the rate of administration to our equation:

Q'(t) = 0.5 - kQ(t)

The initial condition is still that the patient has no warfarin in her system:

Q(0) = 0

So the differential equation for part (b) is:

Q'(t) = 0.5 - kQ(t), Q(0) = 0

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Answer:

A. 72

B. 3

C. 135

Step-by-step explanation:

A. 12 x 6 = 72

B. 15 x 3 = 45 so Nina raise 3x more money than Sandra

C. 45 x 3 = 135

The equation of the line in standard form is y = -2x + 12

What is standard equation?

The slope of the line passing through (2, −4) and (−2, 4) is

m = (y₂ - y₁)/ (x₂ - x₁)

= (4 - (-4)) / (-2 - 2)

= 8 / -4

= -2

Let the equation of the line in slope-intercept form be y = mx+c

y = -2x + c

The point (2,4) will satisfy the equation .

So, 4 = -2(4) + c

4 = -8 + c

c = 12

The equation of the line in slope-intercept form is y = -2x + 12

Hence, the equation of the line in standard form is y = -2x + 12.

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Essentially, when it's asking "find the maximum height and the time it occurs at," it wants you to use the vertex formula.  This is a formula that gives you the x-coordinate of the vertex, or the maximum or minimum height of a parabola.

x-coord of vertex = \(\frac{-b}{2a}\)

A quadratic equation is structured with 3 parts

for this one, a = -16, b = 104, c = 5

finding the x-coord just plug those into the formula

\(-\frac{104}{2(-16)}\)

simplify to

- 104/ - 36

negative cancels

104/32

at time = 13/4, there is a relative maximum.

to find its height, just plug that value into your calculator using the original equation

plugging in t = 13/4  yields a value of 174

Coords of rel. max. (13/4 , 174)

The speed of the current is 3 miles per hour. Answer: The speed of the current is 3 miles per hour.

.Let "t" be the time taken to travel 78 miles downstream and "t" be the time taken to travel 42 miles upstream.

The distance traveled downstream is 78 miles, so we can write:78 = (10 + x)t ... equation (1)

The distance traveled upstream is 42 miles, so we can write:42 = (10 - x)t ... equation (2)

Solving equations (1) and (2) for "t", we get:t = 78 / (10 + x) ... equation (3)

t = 42 / (10 - x) ... equation (4)

We can equate the value of "t" from equations (3) and (4) since the time is the same.

We get:78 / (10 + x) = 42 / (10 - x)

Multiplying both sides by (10 + x)(10 - x), we get:78(10 - x) = 42(10 + x)

Simplifying, we get:780 - 78x = 420 + 42x

Adding 78x and subtracting 420 from both sides, we get:120x = 360x = 3

Therefore, the speed of the current is 3 miles per hour. Answer: The speed of the current is 3 miles per hour.

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Answer:

(0.095, 0.165)

Step-by-step explanation:

Confidence interval :

Phat ± margin of error

Margin of Error = 0.035

Phat = x / n

Phat = 11 / 85 = 0.1294117

Hence,

Phat ± 0.035

Lower boundary = 0.1294117 - 0.035 = 0.0944

Upper boundary = 0.1294117 + 0.035 = 0.1644

(0.0944, 0.1644)

Answer:

The answer is   (0.095, 0.165)

Step-by-step explanation:

I just took the test and got it right

Answer:

the unit price on is $2.50

Step-by-step explanation:

61.5÷24.60

Assuming Ryan buys 61.5 ounces of lemonade for $24.60. The unit price is: $0.4.

Using this formula

Unit pice=Cost price/ Ounces of lemonade

Where:

Cost price=$24.60

Ounces of lemonade=6.15 ounces

Let plug in the formula

Unit price=$24.60/6.15

Unit price=$0.4

Therefore the unit price is: $0.4.

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Answer:

9

Step-by-step explanation:

the equation is divided by 3 which equals to 2x+5 so didvide 27 by 3

Answer: Review the picture. This is the formula.

Step-by-step explanation: Just multiply the terms and you’ll get the volume. Remember to not measure the diameter but half of that which is the radius! I hope this helps but please comment down below if you need more help!

Answer: V = (1/3)πr2h.

Step-by-step explanation:

(forgive me if I may mess up, its been a while)

900+50+6+3/100

Answer:

yes I will help you but in what can I help you I need the problem