rank these 1.0m solutions from highest to lowest pH: HCl, NaOH,
Ba(OH)2, NH3, HCN

Check answer below in the image.

Answer:

3. It is both a function of x and a relation i think

Step-by-step explanation:

Answer:

ghfhrfh

Step-by-step explanation:

nhfjhtfjyt

The surface area of the box with a height of 8 inches, a length of 12 inches, and a width of 6 inches is 432 square inches.

The surface area of a box with a height of 8 inches, a length of 12 inches, and a width of 6 inches can be calculated using the formula SA = 2lw + 2lh + 2wh. In this case, SA stands for surface area, l stands for length, w stands for width and h stands for height.

To calculate the surface area of the box, substitute the given values for l, w and h into the formula and solve:

SA = 2(12)(6) + 2(12)(8) + 2(6)(8)

SA = 144 + 192 + 96

SA = 432 square inches

Therefore, the surface area of the box with a height of 8 inches, a length of 12 inches, and a width of 6 inches is 432 square inches.

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Answer:

see below

Step-by-step explanation:

3.  (10x² - 4x + 3) - (7x² + 3x + 13)

=  10x² - 4x + 3 - 7x² - 3x - 13

=  10x² - 7x² - 4x - 3x + 3 - 13

6.  (10x - 12 - 3x²) - (18 - 4x² + 9x)

=   10x - 12 - 3x² - 18 + 4x² - 9x

8.  (3x + 5x² - 1) + (13 - 20x + x²)

=   3x + 5x² - 1 + 13 - 20x + x²

The value of x is: x = 35.57.

Here, we have,

given that,

from the given diagram, we get,

it is a right angle triangle,

base = x

hypotenuse = 37

and angle = 16°

now, we know that,

cos θ = adjacent / hypotenuse

so, we get,

cos 16° = x/37

The value of cos 16° is equal to the x-coordinate (0.9613).

∴ cos 16° = 0.9613.

=> 0.9613 = x/37

=> x = 35.57

Hence, The value of x is: x = 35.57.

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The volume and the surface area of the prism is 6 and 22 square inches²

First, lets find the volume of the prism

Volume:

\(\text{Volume}=\text{(Area of the base)}\times\text{height}\)

\(\text{Volume}=(3\times2)\times1\)

\(\text{Volume}=6 \ \text{square inches}^2\)

Since the volume of the prism is 6, now to find the Surface area of the cubes.

\(\text{Surface area}= \text{Total area of the 2-dimensional surfaces to make 3-dimensional }\)

\(\text{Surface area}=2\times3=6, \ 3\times1=3, \text{and} \ 1\times2=2\).

\(\text{Surface area}=6(2)+3(2)+2(2)=22 \ \text{square inches}^2\)

The surface area of the prism is 22.

Therefore, the volume and the surface area of the prism is 6 and 22 square inches²

Based on the given information, we know that Mr. Habib bought 8 gifts and spent between $2 and $5 on each gift. To find a reasonable total amount that Mr. Habib spent on all of the gifts, we can start by finding the minimum and maximum amounts he could have spent.

If Mr. Habib spent $2 on each gift, then the total amount he spent would be 8 x $2 = $16.
If Mr. Habib spent $5 on each gift, then the total amount he spent would be 8 x $5 = $40.

Therefore, the reasonable total amount that Mr. Habib spent on all of the gifts would fall somewhere between $16 and $40. It could be closer to the lower end of the range if he mostly bought gifts for $2 each, or closer to the higher end of the range if he mostly bought gifts for $5 each. Without more information about how much he spent on each gift, it is difficult to give a more precise estimate.

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Answer:223

Step-by-step explanation:

Answer:nnj and

Step-by-step explanation:

Answer: 4x(x - 4)

Step-by-step explanation:

4x² - 16x = 4x(x - 4)

Now we can see that the expression inside the parentheses can also be factored:

x - 4 = (x - 4)

So the fully factorized expression is:

4x² - 16x = 4x(x - 4) = 4x(x - 4)

Answer:

ㅤ

- 4x( x + 4 )

ㅤ

Step-by-step explanation:

ㅤ

\(\large{\pmb{\sf{ - 4x^{2} - 16x}}}\)

ㅤ

\(\large{\underline{\underline{\sf{Taking \: Out \: {\green{4}} \: As \: Common:-}}}}\)

ㅤ

\(\large{\pmb{\sf{\leadsto{- 4(x^{2} + 4x)}}}}\)

ㅤ

\(\large{\underline{\underline{\sf{Taking \: Out \: {\green{x}} \: As \: Common:-}}}}\)

ㅤ

\(\large{\purple{\boxed{\pmb{\sf{\leadsto{- 4x(x + 4)}}}}}}\)

━━━━━━━━━━━━━━━━━━━━━━

\(\star \: {\large{\underline{\underline{\pink{\mathfrak{More:-}}}}}} \: \star\)

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\(\large{\dashrightarrow}\) Two positive always makes positive sign when multiplied.

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\(\large{\dashrightarrow}\) Two negatives always makes positive sign when multiplied.

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\(\large{\dashrightarrow}\) A positive and a negative always makes negative sign when multiplied.

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\(\large{\dashrightarrow}\) The sum of two positives is always positive with a positive sign.

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\(\large{\dashrightarrow}\) The sum of two negatives is always positive with a negative sign.

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\(\large{\dashrightarrow}\) The sum of a positive and a negative is always negative with the sign of whose number is greater.

Answer:

x=2/3y-6

Step-by-step explanation:

Let's solve for x.

3x=2y−18

Step 1: Divide both sides by 3.

3x/3=2y−18/3

x=2/3y−6

There is enough proof to indicate that the percentage of newsletter readers who possess a Rolls Royce is less than 69%.

The null hypothesis is that p = 0.69, meaning that 69% of the newsletter readers own a Rolls Royce. The alternative hypothesis is that p < 0.69, meaning that less than 69% of the newsletter readers own a Rolls Royce.

We can use a one-tailed z-test to test the hypothesis. Assuming a sample size of n = 100, if we observe fewer than 69 Rolls Royces in our sample, we can reject the null hypothesis.

Using a z-test, we can calculate the z-score by using the formula:

z = (p' - p) / sqrt(p * (1 - p) / n)

where p' is the sample proportion, p is the hypothesized proportion, and n is the sample size.

At a significance level of 0.10, the critical z-value is -1.28. If the calculated z-score is less than -1.28, we can reject the null hypothesis.

If we conduct a survey of 100 newsletter readers and find that 58 of them own a Rolls Royce, the sample proportion would be p' = 0.58. Calculating the z-score, we get:

z = (0.58 - 0.69) / sqrt(0.69 * 0.31 / 100) = -1.83

Since -1.83 is less than -1.28, we can reject the null hypothesis and conclude that there is sufficient evidence to suggest that fewer than 69% of the newsletter readers own a Rolls Royce.

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Answer:

B

Step-by-step explanation:

a rectangle that is not a square

The plane will be rectangular which is not a square. Then the correct option is B.

It is a polygon with four sides. The total interior angle is 360 degrees. A rectangle's opposite sides are parallel and equal, and each angle is 90 degrees. Its diagonals are all the same length and intersect in the center.

A cube is intersected by a plane from the top edge of one face to the bottom edge of the opposite face as shown.

Let a be the side length of the cube.

The length of the rectangular plane will be

L² = a² + a²

L = a√2

Then the dimension of the plane is 'a' and 'a√2' units.

The plane will be rectangular which is not a square. Then the correct option is B.

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By using trigonometric principles, we can determine the distance between Ben and Mariko in the theater.

To find the distance between Ben and Mariko, we can use the law of cosines. Let's consider the triangle formed by the spotlights and the line connecting Ben and Mariko. The angle between the spotlights is 100', and the distances from each spotlight to Ben and Mariko are given.

Using the law of cosines, we have the equation:

c^2 = a^2 + b^2 - 2ab*cos(C)

Where c represents the distance between Ben and Mariko, a is the distance from one spotlight to Ben, b is the distance from the other spotlight to Mariko, and C is the angle between a and b.

Plugging in the values, we get:

c^2 = (30.6)^2 + (41.1)^2 - 2 * 30.6 * 41.1 * cos(100')

Evaluating the right side of the equation, we find:

c^2 ≈ 939.75

Taking the square root of both sides, we obtain:

c ≈ √939.75

Calculating this value, we find that the distance between Ben and Mariko is approximately 54.9 feet.

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Answer:false

Step-by-step explanation:

Answer:

\(AB = \frac{11}{2}\)

Step-by-step explanation:

Given

The above diagram

\(AB = 3y + 4\)

\(AC = 11y\)

Required

Determine length AB

Tangents drawn from the same point of a circle are equal;

This implies that

\(AB = AC\)

Substitute values for AB and AC

\(3y + 4 =11y\)

Subtract 3y from both sides

\(3y - 3y + 4 = 11y - 3y\)

\(4 = 8y\)

Divide both sides by 8

\(\frac{4}{8} = \frac{8y}{8}\)

\(\frac{4}{8} = y\)

\(\frac{1}{2} = y\)

Substitute \(\frac{1}{2}\) for y in \(AB = 3y + 4\)

\(AB = 3 * \frac{1}{2} + 4\)

\(AB = \frac{3}{2} + 4\)

\(AB = \frac{3 + 8}{2}\)

\(AB = \frac{11}{2}\)

Answer:

$0.47

Step-by-step explanation:

2.82 - 2.35

a) The probability of randomly selecting 4 males out of 7 spectators, given that 70% of the spectators are males, can be calculated using the binomial probability formula.

b) To find the probability that at most 5 of the randomly selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females from the total number of selected spectators.

a) To calculate the probability of selecting 4 males out of 7 spectators, we can use the binomial probability formula:

P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)

Where:

- n is the total number of trials (number of people selected)

- k is the number of successful trials (number of males selected)

- p is the probability of success in a single trial (probability of selecting a male)

- C(n, k) is the binomial coefficient, calculated as C(n, k) = n! / (k! * (n - k)!)

In this case, n = 7, k = 4, and p = 0.70 (probability of selecting a male). Therefore, the probability of selecting 4 males out of 7 spectators is:

P(X = 4) = C(7, 4) * (0.70)^4 * (1 - 0.70)^(7 - 4)

b) To find the probability that at most 5 of the selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females. This can be done by summing the individual probabilities for each case.

P(X ≤ 5 females) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)

To calculate each individual probability, we use the same binomial probability formula as in part a), with p = 0.30 (probability of selecting a female).

Finally, we sum up the probabilities for each case to find the probability that at most 5 of the selected spectators are females.

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Answer:

(-3,-2), (-3,-5), (-4,-5), (-7,-2)

Step-by-step explanation:

Answer:

option 3

Step-by-step explanation:

\(circumference = 2 \pi r\\30 \pi = 2 \pi r\\\\r = \frac{30 \pi }{2 \pi} =15mm\\\\Area = \pi r^2 = \pi 15^2 = 225 \pi \ mm^2\)

The mass of the pencil is approximately 5.49 ounces.

To find the mass of the pencil, we can integrate the density function over the length of the pencil.

The density function is given by rho(x) = 5/x oz/in.

We want to find the mass of the pencil, so we integrate the density function from x = 2 (the starting point of the pencil) to x = 6 (the endpoint of the pencil).

The integral is ∫[2, 6] (5/x) dx.

Evaluating the integral, we have:

∫[2, 6] (5/x) dx = 5 ln(x) ∣[2, 6] = 5 ln(6) - 5 ln(2) = 5 (ln(6) - ln(2)).

Using the property of logarithms, we can simplify this to:

5 ln(6/2) = 5 ln(3) ≈ 5 (1.098) ≈ 5.49 oz.

The mass of the pencil is approximately 5.49 ounces.

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We solved a problem after several missteps. One thing we are not certain of. We should:

When we are unsure about a part of a calculation, it is a good idea to check for hints that address that part of the calculation. This can help us confirm or correct your understanding of the problem. In addition, speaking with an instructor or classmate can provide valuable insight and help clarify any confusion.

Finally, if we still feel unsure, submitting our answer and then adjusting it based on feedback can help us improve our understanding and knowledge of the material. All of these options can help ensure that we have the most accurate and complete understanding of the problem.

This question should be provided with answer choices, which are:

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Answer:

A. 12 is the answer

Step-by-step explanation:

Since DM = 35

it means r+3 and 4r-28 must add together to become 35

So we can put this in an equation:

r+3+4r-28=35

Add 4r and r which is 5r

3-28 is -25

So the equation now looks like this:

5r-25=35

Add 25 on both sides:

5r=60

Divide 5 on both sides:

r=12

Hope this helps!

Answer:61=9

Step-by-step explanation: