a company needs to create a concrete foundation 3 ft deep measuring 58 ft by 26 ft, outside dimensions, with walls in. thick. how many cubic yards of concrete will they need?

the answer is x equal to 18

The statement "P implies Q" is false under the following conditions: a) P is true and Q is false, and d) P is false and Q is true.

The statement "P implies Q" can be expressed as "if P, then Q." It is a conditional statement where P is the antecedent (the condition) and Q is the consequent (the result).

To determine when the statement is false, we need to identify cases where P is true but Q is false, or when P is false but Q is true.

Option a) states that both P and Q are true. In this case, the statement "P implies Q" holds true because if P is true, then Q is true.

Option b) states that both P and Q are false. In this case, the statement "P implies Q" is considered true because the antecedent (P) is false.

Option c) states that P is true and Q is false. Under this condition, the statement "P implies Q" is false because when P is true, but Q is false, the implication does not hold.

Option d) states that P is false and Q is true. In this case, the statement "P implies Q" is true because the antecedent (P) is false.

Therefore, the conditions under which the statement "P implies Q" is false are a) P is true and Q is false, and d) P is false and Q is true.

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Answer:

five rational numbers between

-3 and -1

are -2, -2.5, -1.5, -2.75 and -1.25

We are given that we need to find the value of x based on two sides of a triangle (12 and 5).

We are given the side that is adjacent to the angle and the hypotenuse. This means we will use the cosine ratio (CAH).

Therefore, we will find the inverse of cosine at this value.

Therefore, the measure of x is equivalent to approximately 65.4 degrees.

The unit vector that has the same direction as the given vector is\(& (3 / \sqrt{ } 58) \mathrm{i}-(7 / \sqrt{58}) \mathrm{j}\).

The given vector(v) is -3i+7j

The unit vector is found by dividing the vector by its magnitude

Unit vector of  \($v=\frac{v}{\|v\|}$\)

The formula of unit vector in the direction of a given vector is:

We have to find the magnitude first

So,

\(& \|v\|\) =\(\sqrt{(3)^{2}+(-7)^{2} } =\sqrt{9+49} =\sqrt{58}\)

\(& \|v\|=\sqrt{58}\)

The unit vector is:

The i, j, and k are the unit vectors in the directions of the x-axis, y-axis, and z-axis respectively in a 3-dimensional plane. i.e.,

\($$\begin{aligned}& =(1 / \sqrt{58})(3 \mathrm{i}-7 \mathrm{j}) \\& =(3 / \sqrt{ } 58) \mathrm{i}-(7 / \sqrt{58}) \mathrm{j}\end{aligned}$$\)

Therefore, the unit vector is \(& =(3 / \sqrt{ } 58) \mathrm{i}-(7 / \sqrt{58}) \mathrm{j}\).

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Therefore, Drug C has a stronger impact on cell survival compared to Drug A, making it the drug with the greatest effect.

To draw a representation of the survival curve and identify the drug that has the greatest effect on cell survival, we can use a graph where the x-axis represents the drug concentration in μg/ml, and the y-axis represents the percentage of cell survival.

Since Drug B has no IC90 value, it means that it does not reach a concentration that causes a 90% reduction in cell survival. Therefore, we can assume that Drug B has no significant effect on cell survival and can omit it from the survival curve.

For Drug A and Drug C, we have IC90 values of 5 and 3 μg/ml, respectively. This means that when the drug concentration reaches these values, there is a 90% reduction in cell survival.

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According to the division operation, the sum of all two-digit numbers that yield a remainder of 1 when divided by 4 is 1040.

To find the required sum, we need to first determine the set of all two-digit numbers that satisfy the given condition. We know that any two-digit number can be written in the form of 10a+b, where a and b are single-digit integers. If such a number leaves a remainder of 1 when divided by 4, then we can write:

10a+b = 4k+1

where k is some integer. Rearranging this equation, we get:

10a = 4k+1-b

Since a is a single-digit integer, it can only take values from 1 to 9. We can substitute these values one by one to obtain the corresponding values of b that satisfy the above equation. For example, if we substitute a = 1, we get:

10 = 4k+1-b

Simplifying this equation, we get:

b = 4k+9

This means that if the tens digit is 1, then the units digit must be 9 for the number to satisfy the given condition. Similarly, we can obtain the values of b for other values of a. The complete set of two-digit numbers that satisfy the given condition is:

19, 23, 27, 31, 35, 39, 43, 47, 51, 55, 59, 63, 67, 71, 75, 79, 83, 87, 91, 95, 99

To find the sum of these numbers, we simply add them up:

19+23+27+31+35+39+43+47+51+55+59+63+67+71+75+79+83+87+91+95+99 = 1040

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Complete Question:

The sum of all two digit numbers which when divided by 4 , yield unity as remainder is

A schedule example that demonstrates a write-read conflict involving actions of transactions T1 and T2 on objects X and Y.  The write-read conflict occurs at step 2, when T2 reads the value of X after T1 has written to it, but before T1 has committed or aborted.

A write-read conflict occurs when one transaction writes a value to a data item, and another transaction reads the same data item before the first transaction has committed or aborted.
An example schedule with actions of transactions T1 and T2 on objects X and Y that results in a write-read conflict:
1. T1: Write(X)
2. T2: Read(X)
3. T1: Read(Y)
4. T2: Write(Y)
5. T1: Commit
6. T2: Commit
In this schedule, the write-read conflict occurs at step 2, when T2 reads the value of X after T1 has written to it, but before T1 has committed or aborted. This can potentially cause problems if T1 later decides to abort, since T2 has already read the uncommitted value of X.

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Hey there!

36y - 12

FIRST LOOK AT THE GCF (Greatest Common Factor)

36y: 1, 2, 3, 4, 6, 9, 12, 18, 36, and y

12: 1, 2, 3, 4, 6, and 12

GCF: 12

So, 12 would most likely be number before you make your parentheses

12(?y - 1)

The numbers in your original equation both share 3 & -1

So, therefore the factor form of your equation should be: 12(3y - 1)

Answer: 12(3y - 1)

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

\(12(3y -1)\)

Step-by-step explanation:

\(\textbf{Given that,}\\\\~~~~36 y -12\\\\= 12 \cdot 3 y -12~~~~~~~~~~~~~~~~~~~;\textbf{Rewrite.}\\\\=12(3y -1)~~~~~~~~~~~~~~~~~~~~;\textbf{Take out the common factor 12.}\)

Option 2 is correct that is 1.79

When presented in ascending order, the value that 75% of data points fall within is known as the higher quartile, or third quartile (Q3).

The quartiles formula is as follows:

Upper Quartile (Q3) = 3/4(N+1)

Lower Quartile (Q1) = (N+1) * 1/3

Middle Quartile (Q2) = (N+1) * 2/3

Interquartile Range = Q3 -Q1,

1.74, 0.24, 1.56, 2.79, 0.89, 1.16, 0.20, and 1.84 are available.

Sort the data as follows: 0.20, 0.24, 0.89, 1.16, 1.56, 1.74, 1.84, 2.79 in ascending order of magnitude.

The data set has 8 values.

hence, n = 8; third quartile: 3/4 (n+1)th term

Q3 =3/4 of a term (9) term

Q3 =27/4 th term

Q3 = 1.74 + 1.84 / 2 (average of the sixth and seventh terms)

equals 1.76

Thus Q3 is 1.76 that is option 2

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Answer:  A. c = 3d

I'm gonna go with c = 3d

Step-by-step explanation:  c = 3d

After looking at the table I believe the equation would be c=3d. I came to this conclusion because (6)=3(2); (9)=3(3); (15)=3(5); 18=3(6). I really hope this helps!:)

...................................................................................................................................................

Answer:

Step-by-step explanation:

Days  Cost

2          6

3          9

5         15

6         18

Now to find equation that models the given data we will use two point slope form.

Formula:

Substitute the values in the formula

where y denotes the number of days and x denotes the cost

Let us suppose d denotes the number of days and c denotes the cost

So, equation becomes:  

Hence an equation models the data in the table is  

So, option A is true.

The average speed of John for the whole journey is 54km/h.

Calculating average speed involves dividing the total distance traveled by the total time it took to cover that distance.

Speed is the rate of movement of something at a specific time.

Average speed refers to the average speed over the course of a journey.

So, the average speed will be:

Distance = speed x time

d₁ = v₁ x t₁

d₁ = 50 x 3

d₁ = 150 km

d₂ = v₂ x t₂

d₂ = 60 x 2

d₂ = 120 km

So,

D = d₁ + d₂

D = 150 + 120

D = 270 km

Utilizing the S formula:

S = D/ T

S = 270 / 5

S = 54 km/hr

S = 54km/hr

Therefore, the average speed of John for the whole journey is 54km/h.

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The exact value of sinθ in simplest radical form is sinθ = 1.

The terminal side of an angle in standard position is a line passing through the point (x,y).

To find the exact value of sinθ, use the trigonometric identity sinθ = y/r, where r is the distance or length of the line segment from the origin

r = √(x² + y²)

Given the point (-20, 21), the value of sinθ is 21/√(20² + 21²).

Simplifying, 21/√(441), sinθ = 21/21 = 1.

Therefore, the exact value of sinθ in simplest radical form is sinθ = 1.

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Answer:

6x^2 + 20x - 96

Step-by-step explanation:

FOIL!!! 3x times 2x is 6x^2,

3x times 12 is 36x,

-8 times 2x is -16x

12 times -8 is -96

36x-16x= 20x

Answer:

9 and 15

Step-by-step explanation:

ans should be 9 and 15

i dun really understand what this qns wants u to find really bad qns to test

Answer: 1/18

Step-by-step explanation:

the probability that you roll a 4 on a standard die is 1/6 because there is 6 sides then the probability of rolling a 1 or a 3 is 2/6 or one third. then multiply 1/3 by 1/6 and you get the final answer of 1/18 :)

Answer:

8 inches

Step-by-step explanation:

The volume of a hemisphere is half the volume of a sphere.

Therefore, the sum of the volumes of the two hemisphere-shaped scoops of ice cream (with diameters of 4 inches), is equal to the volume of a sphere with diameter of 4 inches.

If the melted ice cream fills the cone exactly to the top without overflowing, the volume of the cone with diameter of 4 inches must be equal to the volume of a sphere with diameter of 4 inches.

As the diameter of a circle is twice its radius, then the radius of the sphere and cone is r = 2 inches.

The formulas for the volume of a cone and the volume of a sphere are:

\(\boxed{\begin{minipage}{4 cm}\underline{Volume of a cone}\\\\$V=\dfrac{1}{3} \pi r^2 h$\\\\where:\\ \phantom{ww}$\bullet$ $r$ is the radius. \\ \phantom{ww}$\bullet$ $h$ is the height.\\\end{minipage}}\)   \(\boxed{\begin{minipage}{4 cm}\underline{Volume of a sphere}\\\\$V=\dfrac{4}{3} \pi r^3$\\\\where:\\ \phantom{ww}$\bullet$ $r$ is the radius.\\\\\end{minipage}}\)

The depth of the cone is its height.

Therefore, to calculate how deep the cone must be so that the melted ice cream will fill the cone exactly to the top without overflowing, set the two equations equal to each other, substitute r = 2, and solve for h (the depth of the cone).

\(\begin{aligned}\textsf{Volume of a cone}&=\textsf{Volume of a sphere}\\\\\dfrac{1}{3} \pi (2)^2 h & = \dfrac{4}{3} \pi (2)^3\\\\\dfrac{1}{3} \pi \cdot 4 h & = \dfrac{4}{3} \pi \cdot 8\\\\\dfrac{4}{3} \pi h& = \dfrac{32}{3} \pi \\\\\dfrac{4}{3} h& = \dfrac{32}{3} \\\\4 h& = 32 \\\\h&=\dfrac{32}{4}\\\\h&=8\; \sf inches\end{aligned}\)

Therefore, the depth of the cone must be 8 inches.

The cone must be at least 8 inches deep in order for the melted ice cream to fill the cone exactly to the top without overflowing.

1. The opening of the ice cream cone has a diameter of 4 inches. This means that the radius of the cone's opening is 4/2 = 2 inches.

2. The two hemisphere-shaped scoops of ice cream have diameters of 4 inches each. This means that the radius of each scoop is 4/2 = 2 inches.

3. When the ice cream melts, it will take up the space between the scoops and fill the cone. In order for the melted ice cream to fill the cone exactly to the top without overflowing, the depth of the cone must be equal to the combined height of the two ice cream scoops.

4. The height of each hemisphere-shaped scoop can be calculated using the formula for the volume of a sphere, which is (4/3)πr³, where r is the radius.

  - For each scoop, the radius is 2 inches, so the height of each scoop is (4/3)π(2)³ = (4/3)π(8) = (32/3)π.

5. Since there are two scoops, the combined height of the two scoops is 2 * (32/3)π = (64/3)π.

6. Therefore, the cone must be at least (64/3)π inches deep in order for the melted ice cream to fill the cone exactly to the top without overflowing. This is approximately equal to 67.03 inches.

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Answer:

I think the answer 22.

Step-by-step explanation:

When finding absolute extrema, you set the FIRST derivative equal to zero and undefined to find the critical values. Therefore, the correct answer is option A.

When finding absolute extrema, you set the FIRST derivative equal to zero and undefined to find the critical values. This is because first derivatives can determine the rate of change, and setting them to 0 or undefined (not defined) identifies when the rate of change is at a maximum or minimum.  The second derivative is then used to identify if the maximum or minimum is indeed an absolute extreme. If the second derivative is positive, then it is a minimum; if negative, then it is a maximum.  This is the technique used to find absolute extrema.

Therefore, the correct answer is option A.

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"Your question is incomplete, probably the complete question/missing part is:"

When finding Absolute Extrema, you set the________derivative equal to zero and undefined to find the critical values.

First

Third

Second

The remaining value will increase by the value of the slope. Hence the remaining missing values are -47, -44, -41, -38 and -35

The slope of a line is the ratio of the rise to run of a line. It is also defined as the rate of change of coordinate y with respect to x. Mathematically;

slope = change in y/change in x

If the slope of the table given is 3, then using the coordinate points (5, -50)and (6, y)

Substitute

3 = y-(-50)/6-5
3 = y+50/1
y+50 = 3

y = -47

The remaining value will increase by the value of the slope. Hence the remaining missing values are -44, -41, -38 and -35

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Finding the equation using slope-intercept form.

\(y=-3x+7\)

OR

Finding the equation using point-slope form.

\(y-1=-3\) × \((x-2)\)

Hope this helps!

The value of the expression ⁴²C₃ is given by 11480.

From the combination formula we know that,

The number of ways to choose ' r ' number of items from total of ' n ' number of items without replacement is = ⁿ C ᵣ.

ⁿ C ᵣ = C(n, r) = n!/[r! (n - r)!]

Here we have to evaluate the value of ⁴²C₃.

The value of the required combination value is given by

= ⁴²C₃

= C(42, 3)

= 42!/[3! (42 - 3)!]

= 42!/[3! 39!]

= (42 * 41 * 40 * 39!)/[3! 39!]

= (42 * 41 * 40)/(3 * 2 * 1)

= 7 * 41 * 40

= 11480

Hence the value of the combination is, ⁴²C₃ = 11480.

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To evaluate the expression, we will need to plug in a 6 everywhere there is a c.

5c + 2

5(6) + 2

30 + 2

32

Hope this helps!! :)

Answer:

right triangle

Step-by-step explanation:

the pythagorean theorem only works on right triangles

Answer:

96 degrees

Step-by-step explanation:

When finding the arc from a non central angle, multiply it by 2