FOR 15 PTS!! please help i don’t understand this thank you.

Step-by-step explanation

l do not know.

Answer:

C. 0.5..................

Answer:

yes, you can graph parametric equations there. (It's called Desmos, by the way, not “Demos.”) Click on the triple-bar symbol at the top left, which takes you to a drop-down menu. Scroll down that menu until you see the entries for parametric equations. Hope this helps!

Step-by-step explanation:

pls say thx

Answer:

\( = - 4 \times 2 + 4 \times ( - 4) + c \\ = - 8 - 16 + c \\ = 24 + c \\ \frac{ - c}{ - 1} = \frac{24}{ - 1} \\ c = - 24\)

To find the probability P(X ≤ \(X_{max\)), we need to find the cumulative probability corresponding to the calculated z-score using a standard normal distribution table or a calculator.

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.

To find the probability that a randomly selected examinee will complete the exam on time, we need to calculate the z-score and then use the standard normal distribution.

Given:

Mean time per question (μ) = minutes

Standard deviation (σ) = minutes

Time allowed for the exam (X) = minutes

We want to find P(X ≤ \(X_{max\)), where \(X_{max\) is the maximum time allowed for the exam. Let's assume the maximum time allowed is \(T_{max\).

To calculate the z-score, we use the formula:

z = (X - μ) / σ

z = (\(T_{max\) - μ) / σ

The z-score tells us how many standard deviations an observation is from the mean.

To find the probability P(X ≤ \(X_{max\)), we can use a standard normal distribution table or a calculator to find the cumulative probability associated with the calculated z-score.

Now, let's calculate the z-score using the given values:

z = (\(T_{max\) - μ) / σ

z = (\(T_{max\) - minutes) / minutes

To find the probability P(X ≤ \(X_{max\)), we need to find the cumulative probability corresponding to the calculated z-score using a standard normal distribution table or a calculator.

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Answer:

answer of n is 15 by pythagoras theorem

Step-by-step explanation:

n is a hypotenuse

\( \sqrt{ {12}^{2} + {9}^{2} } = 15\)

Measure of angle:

∠A  = 36.86°

∠B = 90°

∠C = 53.13 °

Measure of side ,

AB =  28

BC = 21

CA = 35

Given triangle ABC.

Right angled at B.

Now, using trigonometric ratios to find angle A , B , C .

Right angled at B : ∠B = 90°

Angle A,

SinA = 21/35

∠A = 36.86

Angle C,

SinC = 28/35

∠C = 53.13

Now measures of side.

To find the length of side use sine rule .

Sine rule:

a/sinA = b/sinB = c /sinC

a = opposite side of angle A .

b = opposite site of angle B .

c = opposite side of angle C.

AB = 28

BC = 21

CA = 35

Hence the sides and angles of the triangles are measured .

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Given:

The line containing the points (9,5) and (9,16).

Explanation:

The rate of chage of line passes through point (x_1,y_1) and (x_2,y_2) is,

Determine the rate of change of line passes through line (9,5) and (9,16).

So answer is undefined.

Option A is correct.

(a) 10⁴ strings of four digits which end with an even digit.

(b) 10⁵ strings of four digits which begin with an odd digit.

(a)There are 10 choices ranging from 0 to 1,2...9 for the first three digits of the string that ends in an even number and four possibilities ranging from 2,4,6,8, for the last digit.

According to the product rule there are 4000 strings that terminate in an odd number or 10 × 10 × 10 × 4.

(b) Also there are 10 choices ranging from 0 to 9 for the last three digits of the string that ends in an odd or even number and 5 possibilities ranging from 1,3,5,7,9 for the first digit .

According to the product rule there are 5000 strings that terminates in an even number or 10 × 10 × 10 × 5.

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Given:

The equation is,

Explanation:

Simplify the right hand side of equation.

From left side and right side of equationn it can be observed that,

Simplify the equation for a.

OR,

So value of a is -3.

Option B is correct.

Answer:

you can assume the purple point is a solution to both equations

i really need brainliest

Step-by-step explanation:

Es un problema de sistema de ecuaciones lineales. Podemos representar la cantidad de galletas vendidas de cada tipo como variables x e y, donde x es el número de galletas vendidas a 1,40€ y y es el número de galletas vendidas a 1,60€. Entonces, podemos escribir dos ecuaciones:

x + y = 30 (el número total de galletas vendidas es 30)

1.4x + 1.6y = 44 (el dinero total ganado es 44€)

Resolvamos el sistema usando el método de sustitución:

x + y = 30

x = 30 - y

1.4(30 - y) + 1.6y = 44

42 - 1.4y + 1.6y = 44

42 = 44

No es posible, ya que los dos lados de la última ecuación no son iguales. Esto significa que no hay una solución posible para el número de galletas vendidas de cada tipo. Es decir, no es posible determinar cuántas galletas se vendieron a 1,40€ y cuántas se vendieron a 1,60€ con la información proporcionada.

The principal sum refers to the amount payable in one sum in the case of accidental death and, in some cases, accidental dismemberment.

The amount paid in the case of accident or medical insurance in the event that the insured person dies, loses a limb, or loses sight is known to be as principal sum. It means that the principal sum amount is the maximum amount paid to the insured person for all injuries resulting from the accident.

Thus, the principal sum is the amount insured to be paid by the company to the beneficiary in the case of the insured individual's accidental death as well as in the loss of limb or sight.

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Answer:

35

Step-by-step explanation:

just divide em

Answer:

volume = 840 cubic cm

(3.2/100)×840= 26.88 per day

after 4 days = 26.88×4=107.5

answer is 107.5

The volume (in cubic centimeters) after 4 days, given that the initial volume of the ball was 840 cubic centimeters, is 732.5 cubic centimeters

First, we shall determine the volume lost per day. Details below:

Volume lost per day = 3.2% × Initial volume

= 3.2% × 840

= (3.2 / 100) × 840

= 26.88 cubic centimeters

Now, we shall obtain the volume after 4 days. Details below:

Volume after 4 days = Initial volume - Volume lost in 4 days

= 840 - 107.52

= 732.5 cubic centimeters

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Answer:

48

Step-by-step explanation:

4^2=16×3=48

hope this helps

To determine the fraction of automotive batteries that would be expected to survive beyond 1000 days, we need to calculate the probability that a battery's life exceeds 1000 days, given that it follows a normal distribution with a mean of 900 days and a standard deviation of 35 days.

We can use the standard normal distribution (Z-distribution) to calculate this probability. We need to convert the value of 1000 days into a standardized Z-score using the formula:

Z = (X - μ) / σ

where X is the value we want to convert (1000 days in this case), μ is the mean (900 days), and σ is the standard deviation (35 days).

Z = (1000 - 900) / 35 = 2.857

Using a Z-table or a statistical calculator, we can find the area/probability to the right of Z = 2.857. This area represents the fraction of batteries expected to survive beyond 1000 days.

Looking up the Z-score of 2.857 in a standard normal distribution table, we find that the area to the right is approximately 0.00215.

Therefore, the fraction of automotive batteries expected to survive beyond 1000 days is approximately 0.00215 or 0.215%.

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There are 48,836,502,496 ways to select 9 countries to serve on the council given the specified conditions.To select 9 countries for the council from the given blocks, you'll need to use combinations. Combinations determine the number of ways to choose a certain number of items from a larger set without considering the order.

First, select 3 countries from the block of 53 countries. This can be done in C(53, 3) ways, where C(n, k) represents the number of combinations of n items taken k at a time.

C(53, 3) = 53! / (3! * (53 - 3)!) = 23,426

Next, choose 2 countries from the block of 64 countries.

C(64, 2) = 64! / (2! * (64 - 2)!) = 2,016

Lastly, select 4 countries from the remaining 72 countries.

C(72, 4) = 72! / (4! * (72 - 4)!) = 1,028,790

Now, multiply the number of combinations from each block together to find the total number of ways to select 9 countries for the council:

Total combinations = C(53, 3) * C(64, 2) * C(72, 4) = 23,426 * 2,016 * 1,028,790 = 48,836,502,496

So, there are 48,836,502,496 ways to select 9 countries to serve on the council given the specified conditions.

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The range for the strength of the concrete samples provided is 1110 psi, and the sample standard deviation is 456.7 psi.

In the given set of concrete strength values, the range is calculated by subtracting the lowest value from the highest value. In this case, the lowest value is 2950 psi and the highest value is 4060 psi. Thus, the range is obtained by subtracting 2950 from 4060, resulting in a range of 1110 psi.

To compute the sample standard deviation, we follow a two-step process. First, we calculate the mean (average) of the data set, which is found by summing up all the values and dividing by the total number of values. In this case, the mean is (3980 + 4060 + 3200 + 3100 + 2950 + 3830 + 4060 + 4060) / 8 = 3695 psi.

Next, we find the difference between each data point and the mean, square each difference, sum up the squared differences, divide by (n-1), and take the square root. Performing these calculations for the given data set, we obtain a sample standard deviation of approximately 456.7 psi.

In summary, the range for the concrete strength is 1110 psi, indicating the difference between the highest and lowest values. The sample standard deviation of 456.7 psi reflects the dispersion of the data points around the mean, providing a measure of the variability in concrete strength samples.

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Answer:

a

Step-by-step explanation:

Answer

Check Explanation

Explanation

The volume of cone is given as

Volume of a cone = ⅓ (πr²h)

where

r = radius of the cone

h = height of the cone

also note that radius of a cone = ½ (Diameter of the cone)

1) Dylan's cone

Radius = 4.5 inches

Height = 6 inches

Volume = ⅓ (πr²h)

= ⅓ (π × 4.5² × 6)

= ⅓ (381.7035)

= 127.23 in³

2) Shane's cone

Radius = ½ (Diameter of the cone)

Diameter of the cone = 4.5 inches

Radius = ½ (4.5) = 2.25 inches

Height = 6 inches

Volume = ⅓ (πr²h)

= ⅓ (π × 2.25² × 6)

= ⅓ (95.426)

= 31.81 in³

3) Jake's cone

Radius = ½ (Diameter of the cone)

Diameter of the cone = 6 inches

Radius = ½ (6) = 3 inches

Height = 4.5 inches

Volume = ⅓ (πr²h)

= ⅓ (π × 3² × 4.5)

= ⅓ (127.2345)

= 42.41 in³

4) Grace's cone

Radius = 6 inches

Height = 4.5 inches

Volume = ⅓ (πr²h)

= ⅓ (π × 6² × 4.5)

= ⅓ (508.938)

= 169.65 in³

Hope this Helps!!!

Answer: I think it is x = 4

Step-by-step explanation: I think this becuse 10 + 5 = 15 and 7x + 4x = 11 and 11x - 15 = 4

Answer:

I think that the answer is x=15

Step-by-step explanation:

Because we know that that whole thing equals 180ﾟSo you would combine like terms with 4X and 7X which would make it equal 11X and you would also add 10 and 5 which would make 15 and then you would make 11X+15 = 180 And then you would subtract 15 from both sides that would make it 11X equals 165 and then you would divide 11 from both sides to get X alone and that would make it X=15

The simplified expression is\($-11p^2-8p+\frac{7}{3}$, where $a=-11$ and $b=\frac{7}{3}$.\)

To simplify the given expression, let's break it down step by step.
Step 1: Simplify the expressions inside the parentheses:
\($((5p+1)-2p\cdot4)(3)(4-1\div3)(6p-9)$$=(5p+1-8p)(3)(4-\frac{1}{3})(6p-9)$$=(-3p+1)(3)(\frac{11}{3})(6p-9)$\)
Step 2: Simplify the expression in the first set of parentheses:
\($=(-3p+1)(\frac{11}{3})(6p-9)$\\\)
Step 3: Expand the expression using the distributive property:
\($=-\frac{33}{3}p^2+11p+6p-\frac{11}{3}-18p+6$\)
Step 4: Combine like terms:
\($=-11p^2-8p+\frac{7}{3}$\\\)
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Answer:

I believe that the answer is the second from the top but could you please explain the question a bit more I don't think the copy paste function worked very well if it's supposed to be a table

Step-by-step explanation:

Answer:

i think it is  the last potion

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

4/5=80%

80% of 200=160

5% of 200=10

80+5=85

100-85=15

15% of 200=30

Answer:

2.50 p + 1.50p

Step-by-step explanation:

if you buy an item x amount of times you would times the two to figure out the total cost of that type of item then add with the other

Step-by-step explanation:

1. Amplitude = 1.  g(x) = 1 sin(6x).  The coefficient 1 is the amplitude.  The range of the function is \(-1 \le g(x) \le 1\)  or, in interval notation, [-1, 1]

2. The period is  \(\frac{2\pi}{6}=\frac{\pi}{3}\).

x-intercepts (at the beginning, middle, and end of the period) \(0,\,\frac{\pi}{6},\,\frac{\pi}{3}\)

Maximum (1/4 of way through period)  \(\left(\frac{\pi}{12},\,1 \right)\)

Minimum (3/4 of way through period)  \(\left( \frac{\pi}{4}, \, -1 \right)\)

The equation to relate the flow of water from the 8-inch pipe (1600) to the flow of water from the 4-inch pipe (2400) is 2400.

To relate the flow of water from the 8-inch pipe to the flow of water from the 4-inch pipe, we can use the equation of continuity, which states that the product of the cross-sectional area of a pipe and the velocity of the fluid is constant.

Let's assume that the velocity of water flowing through the 8-inch pipe is V1 and the velocity of water flowing through the 4-inch pipe is V2. The cross-sectional area of the 8-inch pipe is A1 = π\((8/2)^2\) = 64π square inches, and the cross-sectional area of the 4-inch pipe is A2 = π\((4/2)^2\) = 4π square inches.

According to the equation of continuity, A1 * V1 = A2 * V2.

Substituting the given values, we have:

64π * V1 = 4π * V2

Simplifying, we get:

16V1 = V2

So, the equation to relate the flow of water from the 8-inch pipe (1600) to the flow of water from the 4-inch pipe (2400) is:

1600 * 16 = 2400

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Answer:

-5(7a+ 6)

Explanation:

Given the expression:

-35a - 30

-35a = -5 * 7 * a

-30 = -5 * 6

You can see from the factors that -5 is common to both

Hence -5 is the GCF

Factoring out -5 from the expression will give;

-5(7a+ 6)

This gives the correct factor