The different between\(\sqrt{7}\) and \(\sqrt{2}\) is a/an rational __________.

Answer:

Perpendicular lines are 90 degrees on their central angle.

Step-by-step explanation:

1. Draw the line L with a meter-rule and a pencil.

2. extend the hand of the protractor beyond the radius of the line and bisect the line L, by placing the protractor pin on both ends of the line and marking up and down.

3. Join the points where the markings meet drawing a line through C which is the center of the line L.

Answer:

lil mosey

Step-by-step explanation:

Answer:

9(-a-1-c^2/9)

Step-by-step explanation:

Answer:

a = -c^2/9 -1

Lucy has $7 less than Kristine and $5 more than Nina together, the three have $35. Lucy has $11.

Let's denote the amount of money that Kristine has as K, the amount of money that Lucy has as L, and the amount of money that Nina has as N.

According to the given information, we can form two equations:

Lucy has $7 less than Kristine: L = K - 7

Lucy has $5 more than Nina: L = N + 5

We also know that the three of them have a total of $35: K + L + N = 35

We can solve this system of equations to find the values of K, L, and N.

Substituting equation 1 into equation 3, we get:

K + (K - 7) + N = 35

2K - 7 + N = 35

Substituting equation 2 into the above equation, we get:

2K - 7 + (L - 5) = 35

2K + L - 12 = 35

Since Lucy has $7 less than Kristine (equation 1), we can substitute K - 7 for L in the above equation:

2K + (K - 7) - 12 = 35

3K - 19 = 35

Adding 19 to both sides:

3K = 54

Dividing both sides by 3:

K = 18

Now we can substitute the value of K into equation 1 to find L:

L = K - 7

L = 18 - 7

L = 11

Finally, we can find the value of N by substituting the values of K and L into equation 3:

K + L + N = 35

18 + 11 + N = 35

N = 35 - 18 - 11

N = 6

Therefore, Lucy has $11.

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Answer:

The equation is y = x(x-12)

Vertex form

is y = a(x-6)^2 + 4

where a is -1/9

Step-by-step explanation:

For the general equation, we have the roots at x = 0 or x = 12

so we have x and x -12

So we have the equation as;

y = (x-0)(x-12)

y = x(x-12)

y = x^2 - 12x

The vertex form equation of a quadratic equation is;

y = a(x-h)^2 + k

where (h,k) represents the vertex which we have above as (6,4)

So while substituting 6 for h, we have 4 for k

So we have it that;

y = a(x-6)^2 + 4

Substituting 0 for x and 0 for y, we have it that;

0= a(0-6)^2 + 4

0 = 36a + 4

-4 = 36a

a = -4/36

a = -1/9

Answer:

300

Step-by-step explanation:

do 15 times 20 and that should make 300.

hope this helps

The function has a minimum if the x2 coefficient is positive. If it is negative, the function has reached its limit. If you have the function 2x2+3x-5, for example, the function has a minimum because the x2 coefficient, 2, is positive. Divide the x term coefficient by twice the x2 term coefficient.

Hence, The function has a minimum if the x2 coefficient is positive. If it is negative, the function has reached its limit. If you have the function 2x2+3x-5, for example, the function has a minimum because the x2 coefficient, 2, is positive. Divide the x term coefficient by twice the x2 term coefficient.

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The f′(a) when a = −6 is -7. This means that the slope of the tangent line of the graph of f(x) at x = -6 is -7.

To compute f′(a) algebraically for the given value of a, we use the following differentiation rule which is known as the Power Rule.

This states that:If f(x) = xn, where n is any real number, then f′(x) = nxⁿ⁻¹This is valid for any value of x.

Therefore, we can differentiate f(x) = −7x + 5 with respect to x using the power rule as follows:

f(x) = −7x + 5

⇒ f′(x) = d/dx (−7x + 5)

⇒ f′(x) = d/dx (−7x) + d/dx(5)

⇒ f′(x) = −7(d/dx(x)) + 0

⇒ f′(x) = −7⋅1 = −7

Hence, the derivative of f(x) with respect to x is -7.Now, we evaluate f′(a) when a = −6 as follows:f′(x) = −7 evaluated at x = −6⇒ f′(−6) = −7

Therefore, f′(a) when a = −6 is -7. This means that the slope of the tangent line of the graph of f(x) at x = -6 is -7.

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Answer:

Sedan =18

minivan=19

truck=16

Step-by-step explanation:

The Hernandez family can listen each for 78 hours.

Given that, the Hernandez family is on a road trip. They have been driving for 312 hours. They have listened to 4 CDs of equal length.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Part A

Let the length (number of hours) of each CD be x.

Now, x = 312/4

= 78 hours

Part B

If the family has 1 hour of their drive left, still they can listen 4 CDs.

Therefore, the Hernandez family can listen each for 78 hours.

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Answer:

x = 3+11

y = 4 - 6

P(x,y) = P(15,-2)

Answer:

Step-by-step explanation:

x - Coordinate  = 11 units to the right of 3 =  3 + 11 = 14

y -Coordinate  = 6 units above 4 = 4 + 6 = 10

P(14 , 10)

Answer:

119 is the value of x when y = 7

Step-by-step explanation:

Since y varies inversely with x, we can use the following equation to model this:

y = k/x, where

Step 1:  Find k by plugging in values:

Before we can find the value of x when y = k, we'll first need to find k, the constant of proportionality.  We can find k by plugging in 49 for y and 17 for x:

Plugging in the values in the inverse variation equation gives us:

49 = k/17

Solve for k by multiplying both sides by 17:

(49 = k / 17) * 17

833 = k

Thus, the constant of proportionality (k) is 833.

Step 2:  Find x when y = k by plugging in 7 for y and 833 for k in the inverse variation equation:

Plugging in the values in the inverse variation gives us:

7 = 833/x

Multiplying both sides by x gives us:

(7 = 833/x) * x

7x = 833

Dividing both sides by 7 gives us:

(7x = 833) / 7

x = 119

Thus, 119 is the value of x when y = 7.

The free-haul volume from Station 20 to Station 50 in cubic yards cannot be determined without additional information.

To calculate the free-haul volume, one needs to know the distance between Station 20 and Station 50, as well as the cross-sectional area of the material being hauled. Without this information, it is impossible to determine the volume of material that can be transported without incurring additional hauling costs.

In general, free-haul volume refers to the amount of material that can be transported without incurring additional costs beyond the initial cost of mobilizing the hauling equipment.

This is typically determined by the distance between the excavation site and the location where the material will be used, as well as the properties of the material being transported. Knowing the free-haul volume is important in order to optimize the hauling process and minimize costs. However, without additional information, it is not possible to determine the free-haul volume from Station 20 to Station 50 in cubic yards.

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Answer: 96

Step-by-step explanation:

From the question, we are informed that a pencil lead is packaged in lengths of 0.025 m. To get the number of the shorter pieces can be cut from a strip of pencil lead that is 2.4 m long, we have to divide 2.4 by 0.025. This will be:

= 2.4 / 0.025

= 96

Therefore, 96 shorter pencils can be gotten

Answer:

96

Step-by-step explanation:

(0v0) '

Answer:

yes, this is a function because each x value is paired with with exactly one y value (the first one in the multiple choice)

Step-by-step explanation:

For something to be a function an input can have only one output. Multiple different inputs can have the same output, but not the other way around.

Answer:

Step-by-step explanation:

Candice = 25mph for 4 hours.

Candice has driven= 25 * 4= 100miles.

Liz =50mph

Liz time to catch up to candice= 50 * 2= 100miles.

Therefore, It would have taken Liz two hours to catch up with Candice

Answer:

176

Step-by-step explanation:

Apply PEMDAS

Solve the parenthesis first

11 ( 7 + 9 )

11 ( 16 )

Now open the parenthesis and you will have your answer

11 times 16

176

The unit vector ū in the direction of V is (1/√3, -1/√3, 1/√3). To find the unit vector ū in the direction of vector V = (2, -2, 2), we need to normalize the vector by dividing each component by its magnitude.

Magnitude of V = √(2^2 + (-2)^2 + 2^2) = √(4 + 4 + 4) = √12 = 2√3. Normalized vector ū = V / ||V|| = (2/2√3, -2/2√3, 2/2√3) = (√3/√3, -√3/√3, √3/√3) = (1/√3, -1/√3, 1/√3). Therefore, the unit vector ū in the direction of V is (1/√3, -1/√3, 1/√3).

Regarding the second part of your question, it seems to involve a different context related to forces and lengths, with values given for F, ℓ, and f. However, it's not clear what specific calculations are required or how they relate to the given values.

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Answer: 12 hours and 24 Minutes

Step-by-step explanation:

7*60 = 420

810/420 = 1.9285

93- 100 = 53-60

subtract 40 from 93.

1.53*8 = 12.24

Answer: 12 hours and 24 Minutes

Answer:

\(x = - 4\)

\(y = - 4\)

Step-by-step explanation:

Looking at these equations, we can see neither x or y have the same coefficient. Therefore, we need to multiply or divide, to make either the x or the y the same. It's less of a hassle to make the Xs the same, so let's do that. Taking the top equation and multiplying it by 4, we get:

\(4x - 20y = 64\)

Now let's subtract the top equation from the bottom equation, leaving us with a third equation:

\( - 18y = 72\)

Divide 72 by -18 to get

\(y = - 4\)

Now let's substitute into our first equation to find X:

\(x + 20 = 16\)

Leaving us with:

\(x = - 4\)

Now let's substitute into the second equation to check our solution is correct:

\( - 16 + 8 = - 8\)

This is correct, so the answer is X and Y are both equal to -4

The two numbers are 0.72 and 2.780 when the product is 2.0016.

Let x be the other number that when multiplied with 0.72 gives us the product of 2.0016. We can set up the following equation:

0.72 * x = 2.0016

To solve for x, we can divide both sides of the equation by 0.72:

x = 2.0016 / 0.72

x ≈ 2.780

Therefore, the two numbers are 0.72 and 2.780.

We can check our answer by multiplying these two numbers together:

0.72 * 2.780 ≈ 2.0016

Our answer checks out, and we can confirm that the product of 0.72 and 2.780 is indeed 2.0016.

In summary, given the product of two numbers, we can find the other number when one of them is known by setting up an equation and solving for the unknown number. In this case, we found that the two numbers are 0.72 and 2.780.

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Answer:

An integer, a, cannot be divided by an integer, b, when \(b=0\)

Step-by-step explanation:

There is only one limitation when dividing two numbers. This is that you cannot divide a number by 0 as it is impossible to divide something into 0 groups.

As the integer, b, is the number that symbolized the number of groups something is divided into, this value cannot be 0.

The probability of obtaining exactly as many heads as you just obtained if your coin is the fair coin is 0.2461.

Option C is correct

The probability of obtaining exactly as many heads as you just obtained if your coin is the fair coin is given by the binomial probability formula:

P(X = k) = (n choose k) \(* p^k * (1-p)^(n-k)\)

where X is the random variable representing the number of heads, n is the total number of coin flips, k is the number of heads obtained, and p is the probability of getting a head on any individual flip.

Since we are assuming that the coin is fair, p = 0.5. Let's say you flipped the coin n times and obtained k heads. Then the probability of obtaining exactly k heads with a fair coin is:

P(X = k) = (n choose k \(* 0.5^k * ()1-0.5)^(n-k)\)

We don't know what n or k are, so we can't compute the exact probability. However, we can use the fact that the coin is fair to get an estimate. If we assume that the number of heads obtained is roughly half of the total number of flips, then k = n/2. Plugging this into the formula, we get:

\(P(X = n/2) = (n choose n/2) * 0.5^(n/2) * (1-0.5)^(n/2)\)

Simplifying this expression, we get:

\(P(X = n/2) = (n choose n/2) * 0.5^n\)

Now, we want to find the probability of obtaining exactly as many heads as we just obtained. Let's say we flipped the coin 10 times and obtained 5 heads. Then we want to find P(X = 5), which is:

P(X = 5) = (10 choose 5) \(* 0.5^5 * (1-0.5)^(10-5)\) = 0.2461

Therefore, the probability of obtaining exactly as many heads as you just obtained if your coin is the fair coin is 0.2461.

Option C is correct

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      - - - - - - - - -- - - -- - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - -- - - - --

\(\blue\textsf{\textbf{\underline{\underline{Question:-}}}}\)

a+(-5)=-9

What is a equal to?

\(\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}\)

First, a+(-5)=-9 can be written as follows:-

⇒a-5=-9

Now, add 5 to both sides:-

⇒a=-9+5

And finally,

⇒a=-4

               - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - -- - - - - - - -

Answer:

a = -4

Step-by-step explanation:

We have to,

Find the required value of a,

→ a + (-5) = -9

→ a - 5 = -9

→ a = -9 + 5

→ [ a = -4 ]

Hence, the value of a is -4.

I'm pretty sure this is the right answer..

The  true statement about the quasi-experiment is , the researcher assigns participants to conditions based on the participant's preexisting level of the independent variable.

In a quasi-experiment, the researcher assigns participants to conditions based on the participant's preexisting level of the independent variable. However, unlike a true experiment, a quasi-experiment cannot control for all possible confounding variables and may not allow for the balancing of participant variables between groups. Therefore, while a quasi-experiment can provide some evidence of causality, it may not be as accurate as a true experiment in this regard.

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In a quasi-experiment, the researcher assigns participants to conditions based on the participant’s preexisting level of the independent variable.

A quasi-experiment is a research design that lacks the control of random assignment to groups. Instead, the researcher assigns participants to conditions based on pre-existing levels of the independent variable. This means that the groups may not be equivalent at the outset, and there is a greater risk of confounding variables affecting the results.

Therefore, we cannot balance participant variables between groups in a quasi-experiment, nor can we randomly assign participants to groups. While quasi-experiments can provide valuable information, they do not allow us to infer causality more accurately than other research designs.

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Answer:

Kenny found 80% of the eggs.

Step-by-step explanation:

(4 ÷ 5) × 100 = x

0.8 × 100 = x

80% = x

Kenny found 80% of the eggs.