x2 -20x + y^2 - 10y+25=0
identify center of the circle and radius

Answer: here’s the answer!

Step-by-step explanation: hope this helps!

Answer:

x=10

Step-by-step explanation:

3(x-2)+4=28

3x-6+4=28

3x-2=28

3x=30

x=10

Answer: Please send more, is that all??

Step-by-step explanation:

I need more clarification, what are you trying to answer?

Answer:

0.0885 = 8.85% probability that the sample mean will exceed 2,500.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:

\(Z = \frac{X - \mu}{\sigma}\)

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \(\mu = p\) and standard deviation \(s = \sqrt{\frac{p(1-p)}{n}}\)

In this question:

\(\mu = 2400, \sigma = 210, n = 8, s = \frac{210}{\sqrt{8}} = 74.25\)

Calculate the probability that the sample mean will exceed 2,500.

This is 1 subtracted by the pvalue of Z when X = 2500. So

\(Z = \frac{X - \mu}{\sigma}\)

By the Central Limit Theorem:

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{2500 - 2400}{74.25}\)

\(Z = 1.35\)

\(Z = 1.35\) has a pvalue of 0.9115

1 - 0.9115 = 0.0885

0.0885 = 8.85% probability that the sample mean will exceed 2,500.

The correct answer is Option C. The graph represents the function f (x) = StartFraction 1 Over x EndFraction minus 1 is On a coordinate plane, a hyperbola is shown. One curve opens up and to the right in quadrant 1, and the other curve opens down and to the left in quadrant 3. A vertical asymptote is at x = negative 1, and the horizontal asymptote is at y = 0.

On a coordinate plane, the graph of a hyperbola is shown.

In quadrant 1, one curve opens up and to the right, while in quadrant 3, the other curve opens down and to the left.

The vertical asymptote is at x = -1, and the horizontal asymptote is at y = 0. This hyperbola is symmetrical across both the x and y axes.

The function f(x) = 1/x - 1 has a vertical asymptote at x = 0 because the denominator approaches zero as x approaches zero.

A fraction with a denominator of zero cannot exist.

The horizontal asymptote of this function is y = -1 because as x approaches infinity or negative infinity, f(x) approaches -1.

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Answer:

A.), C.), D.) are true

Step-by-step explanation:

Use the properties of exponents.

Answer:

C

Step-by-step explanation:

translates 1 left 5 down then rotates 180 degrees.

Answer:

Basic fact:

there are 1000 ml in a litre

Step-by-step explanation:

let us do

5 x 1.2

= 6

now let's turn 6 litres in ml

6 x 1000

=6000

now we need to do

6000/150

instead of doing such big numbers, lets do

600/15

=40

Total glasses:-

\(\\ \sf\longmapsto \dfrac{6000}{150}=40glasses\)

Answer:

Step-by-step explanation:

we know both triangles HGI and JGI are congruent because of SAS theorem.

4x+5=2x+11

solve for x

-2x     -2x

2x+5=11

-5       -5

2x = 6

/2      /2

x=3

Choose one to find the measure of:

2x+11

2(3)+11

6+11

17

The possible coordinates for the fountain are (-11/4, -5/2) and (-11/4, 5/2),

To find the possible coordinates for the fountain that is 5 units away from both statues A and B, we can use the concept of distance formula.

The distance between two points (x1, y1) and (x2, y2) can be calculated using the distance formula:

d = √((x₂ - x₁)² + (y₂ - y₁))

In this case, the coordinates for statue A are (-2, -1) and the coordinates for statue B are (4, -1).

Let's assume the coordinates for the fountain are (x, y). We want the distance between the fountain and both statues to be 5 units.

Using the distance formula for statue A:

5 = √((-2 - x)² + (-1 - y)²)

Simplifying:

25 = (-2 - x)² + (-1 - y)² (equation 1)

Using the distance formula for statue B:

5 = √((4 - x)² + (-1 - y)²)

Simplifying:

25 = (4 - x)²+ (-1 - y)² (equation 2)

We have a system of equations (equation 1 and equation 2) that represents the conditions for the fountain's coordinates.

By solving this system of equations, we can find the possible coordinates for the fountain.

Note: The solution to this system of equations will provide two sets of coordinates that satisfy the given conditions.

To solve the equations, we can expand and simplify:

From equation 1:

25 = 4 + 4x + x² + 1 + 2y + y²

x² + y² + 4x + 2y - 20 = 0 (equation 3)

From equation 2:

25 = 16 - 8x + x² + 1 + 2y + y²

x² + y² - 8x + 2y - 9 = 0 (equation 4)

Now, we can solve equations 3 and 4 simultaneously.

Subtracting equation 4 from equation 3 we get:

(8x - 4x) + (-9 + 20) = 0

4x + 11 = 0

4x = -11

x = -11/4

Substituting the value of x back into equation 3:

(-11/4)² + y² + 4(-11/4) + 2y - 20 = 0

y² + 2y - 25/4 = 0

Solving this quadratic equation, we can find the possible values of y. Factoring the equation:

(y + 5/2)(y - 5/2) = 0

This gives us two solutions:

y + 5/2 = 0 -> y = -5/2

y - 5/2 = 0 -> y = 5/2

Therefore, the two possible coordinates for the fountain are (-11/4, -5/2) and (-11/4, 5/2).

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Answer:

321

Step-by-step explanation:

Conversion of 86 to base 5 will be done through base 10 to base 5 and it will be (321)₅.

To convert any number to base 10 we have to multiply its unit digit by 10⁰ and its tenth digit by 10¹.

After it, we need to add it. It will give us a number of the 10 bases.

Conversion of any 10 base number into base 5

To convert any number to base 5 we need to divide by 5 and write the remainder each time thus we need to write the quotient from down to up.

Converting 86 to base 10

⇒ 8ₓ10¹ +8ₓ\(10^0\)

⇒ 86₁₀

Converting 86₁₀ into 86₅

When the number 86 is converted in a base of 5 will be (321)₅

Since we need to go down to up to 321₅ will be the correct answer.

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Answer:

The amount that Seiji earns is $200 and the amount that Gavin earns is $225 and this can be determined by forming the linear equation.

Given :

Seiji and Gavin both worked hard over the summer.

Together they earned a total of $425.

Gavin earned $25 more than Seiji.

a) Let the amount that Seiji earns be 's' and the amount that Gavin earns be 'g'.

The linear equation that represents the total amount they earn is:

s + g = 425   --- (1)

The linear equation that represents the situation "Gavin earned $25 more than Seiji" is:

g = s + 25  --- (2)

b) The graph of both the equation is attached below.

c) Substitute the value of 'g' in equation (1).

s + s + 25 = 425

2s = 400

s = $200

Substitute the value of 's' in equation (2).

g = 200 + 25

g = $225

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Step-by-step explanation:

The total area of the three triangles is square units is 36 and the area of the figure is square units is 60.

The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

From the figure, the area of triangles can be calculated using the:

Area = (1/2)height×base length

Area of three triangle = 1/2(4×6) + 1/2(6×4) + 1/2(4×6)

Area of three triangle = 1/2(24×3) = 36 square units

Area of the figure = area of three triangle + area of the rectangle

= 36 + 6×4

= 60 square units

Thus, the total area of the three triangles is square units is 36 and the area of the figure is square units is 60.

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the correct option is the second one:

"No, because she should have rounded 63 down to 60"

In that case, her estimation would have been 24.

First, we need to understand how rounding works. When we want to round to a given digit, we need to look at the digit that its located at its right.

In this case, LaVonne estimated 38% of 63, and the roundings that she did are:

38% up to 40%. This is correct, because the second digit is 8, so we round up here.

63 to 70. This is incorrect, because the second digit is 3 (smaller than 4) then here she should have round down to 60 instead of up to 70.

So what she should have gotten is:

0.4*60 = 24

That is a better estimation, were the actual value of the 38% of 63 is:

0.38*63 = 23.94

You can see that when rounding down, the estimation is much closer to the actual value.

So, the correct option is the second one:

"No, because she should have rounded 63 down to 60"

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Answer:

165 minutes

Step-by-step explanation:

To solve for the number of minutes that Joaquin played for, we can use this expression:

(let 'a' represent how much time passed from the time Joaquin started playing basketball until the time he arrived at home)

Subtracting 1:10 from each side:

1:10 - 1:10 cancels out to 0, while 3:35 - 1:10 is equal to 2:25.

So, the expression is now:

So, 2 hours and 25 minutes passed.

If we know that 1 hour is equivalent to 60 minutes, we can use this expression to solve for however many minutes are in 2 hours:

Now we need to add on the number of minutes and the time it took him to get home:

Therefore, 165 minutes passed from the time Joaquin started playing basketball until the time he arrived at home.

Answer:snuts

Step-by-step explanation:

Answer:

the answer is 58.65

Step-by-step explanation:

Answer:

x=5.24-9+180n,174.75+180n

Step-by-step explanation:

1/10 × 2000

1×2000/10

2000/10

200

Answer:

5x+7

Step-by-step explanation:

2x + 6 + ( 3x + 1 )

2x + 6 + 3x + 1

5x +7

Answer:

x  >  − 2

Step-by-step explanation:

Answer:

They're not equal!

Step-by-step explanation:

1.) Another way we can write ratios is in fraction form. This would be 2/12 and 6/24.

2.) Next, we can simplify these fractions. 2/12 simplifies to 1/6 (we just divided the numerator and the denominator by 2).

6/24 simplifies to 1/4 (we divided the numerator and denominator by 4)

3.) Finally, we can compare. Is 1/6 equal to 1/4? No! In fact, 1/6 is less than 1/4 because one part out of six is much smaller than one part out of four!

Answer:

the answer is 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

It is 2, because it is the only factor that can go with both of the numbers.

Answer:

6:5

Step-by-step explanation:

Answer:

\(=-\frac{37}{24}\)

Step-by-step explanation:

\(-\frac{2}{3}+\left(-\frac{7}{8}\right)\)
\(=-\frac{2}{3}-\frac{7}{8}\) <- Apply the rule a + (-b) = a - b
\(=-\frac{16}{24}-\frac{21}{24}\) <- The LCM of 3 and 8 is 24.
\(=\frac{-16-21}{24}\) <- Apply the fraction rule \(\frac{a}{c}-\frac{b}{c}=\frac{a-b}{c}\)
\(=\frac{-37}{24}\) <- Subtract
\(=-\frac{37}{24}\) <- Apply the fraction rule \(\frac{-a}{b}=-\frac{a}{b}\)
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Answer:

-1.542

Step-by-step explanation:

(-2/3) + (-7/8)=-37/24=-1 13/24= -1.542

The domain of the question is expressed as; 0 ≤ x ≤ 4

The range of the question is expressed as; 100 ≤ f(x) ≤ 207.36

The domain of a graph is defined as the set of all possible input values that makes the function possible while the range is defined as the set of all possible output values that can result from the possible input values.

Now, we are told that the insect population increases by 20% each month from May 1 to September 1.

The function that represents the insect population after x months is;

f(x) = 100(1.2)ˣ

Thus, the domain is from x = 0 to 4 months inclusive. 0 ≤ x ≤ 4

f(0) = 100(1.2)⁰

f(0) = 100

f(4) = 100(1.2)⁴

f(4) = 207.36

100 ≤ f(x) ≤ 207.36

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Answer:

Let the number of courses that are worth 3 credits each be x and those worth 4 credits be y. With the given information, you can write the following equations:  

x + y = 48

3x + 4y = 155

You can solve the above equations by method of elimination/substitution

x + y = 48 ⇒ x = 48 - y (Now, substitution this equation into 3x + 4y = 155)

3(48 - y) + 4y = 155

144 -3y + 4y = 155

y + 144 = 155

y = 11

Now plug this solution back into x = 48 - y  

x = 48 - 11 = 37  

Check work (by plugging the solutions back into the 3x + 4y and see if it's equal to 155):

3(37) + 4(11) = 155

Answer: There are 37 of the 3-credit course and 11 of the 4-credit course

Rounding to the nearest liter, the volume of the liquid in the pipe is approximately 0.01 liters. Therefore, none of the options A, B, C, or D provided is the correct answer.

To calculate the volume of the liquid in the cylindrical steel pipe, we need to find the difference in volume between the solid cylinder (hollow part) and the hollow cylinder.

Given:

Length of the cylindrical steel pipe (hollow part) = 21 cm

Radius of the solid cylinder = 0.4 cm

Radius of the hollow cylinder = 0.1 cm

First, let's calculate the volume of the solid cylinder (hollow part):

V1 = π × \(r1^2\) × h

V1 = π × \((0.4 cm)^2\) × 21 cm

Next, let's calculate the volume of the hollow cylinder:

V2 = π × \(r2^2\) × h

V2 = π × \((0.1 cm)^2\) × 21 cm

Now, we can find the volume of the liquid in the pipe by subtracting V2 from V1:

Volume of liquid = V1 - V2

Let's calculate these values:

V1 = π ×\((0.4 cm)^2\) × 21 cm ≈ 10.572 cm³

V2 = π × \((0.1 cm)^2\) × 21 cm ≈ 0.693 cm³

Volume of liquid = V1 - V2 ≈ 10.572 cm³ - 0.693 cm³ ≈ 9.879 cm³

To convert the volume from cubic centimeters (cm³) to liters (L), we divide by 1000:

Volume of liquid in liters ≈ 9.879 cm³ / 1000 ≈ 0.009879 L

Rounding to the nearest liter, the volume of the liquid in the pipe is approximately 0.01 liters.

Therefore, none of the options A, B, C, or D provided is the correct answer.

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All the values of x, y and z are,

z = 12.99

y = 7.01

x = 28.3 degree

We have to given that;

In a triangle,

Two angles are, 61.7 degree and 90 degree

And, One side is, 14.76.

Now, We can formulate;

sin 61.7° = Perpendicular / Hypotenuse

sin 61.7° = z / 14.76

0.88 = z / 14.76

z = 0.88 x 14.76

z = 12.99

And, By Pythagoras theorem we get;

14.76² = z² + y²

14.76² = 12.99² + y²

217.85 = 168.74 + y²

y² = 217.85 - 168.74

y² = 49.1

y = 7.01

And, By sum of all the angles in triangle, we get;

x + 61.7 + 90 = 180

x + 151.7 = 180

x = 180 - 151.7

x = 28.3 degree

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According to the angles between intersecting secant and tangent, the value of

angle DF is 52 degrees

angle PQR = 49 degrees

The value of angle DF is solved using the angles of intersecting secant out side the circle

The theorem give the formula in the form

44 = 1/2 (140 - DF)

88 = 140 - DF

DF = 140 - 88

DF = 52 degrees

Using intersection of tangents, for the second figure

exterior angle = 1/2 (major arc - minor arc)

major arc = 360 - 131 = 229

PQR = 1/2 (229 - 131)

PQR = 49 degrees

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