Evaluate r(x)=−x−7 when x=−2,0, and 5.
Brainliest to right answer

Answer:

f(0) =   0

f(-2) =  1

Step-by-step explanation:

f(0) means the value of f when x = 0.  The line is the result of equation f for all points shown on the graph.  Look for the values at x = 0 and x = -2.

They are (0.0) and (-2,1).  This can be written as:

f(0) =   0

f(-2) =  1

Answer:

about 11 hours to make the money

Step-by-step explanation:

167-88=79

79/7.25=11

Hopes this helps please mark brainliest

If a senior citizens' group is making fruit baskets then they can make 10 fruit baskets and want to sell them for $35 each . The domain is [0, 10] and range​ is [0, 350].

The domain of a function is defined as the set of all the possible input values that are valid for the given function.

The range of a function is defined as the set of all the possible output values that are valid for the given function.

Given data that Fruit basket produce = 10

Fruit basket sold = $35

WE need to determine the domain and the range since we were told they make 10 baskets of fruits and as well intend to sell the basket of fruit for the amount of $35 :

Therefore :

Domain : [0, 10]

Range : [ 0, 350 ]

Hence, If a senior citizens' group is making fruit baskets and plans to sell them as a fundraiser then they can make 10 fruit baskets and want to sell them for $35 each . The domain is [0, 10] and range​ is [0, 350].

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The probability that the alleged father was not the father is: 0.024, or 2.4% and The probability that the alleged father could be the father is: 0.953, or 95.3%.

To calculate the probability that the alleged father was not the father, we first need to calculate the z-score for a pregnancy length of 240 days and for a pregnancy length of 306 days. The z-score formula is:

where x is the pregnancy length, mu is the mean pregnancy length, and sigma is the standard deviation of pregnancy length.

For a pregnancy length of 240 days, the z-score is:

For a pregnancy length of 306 days, the z-score is:

To calculate the probability that the alleged father was not the father, we need to find the area under the normal distribution curve to the left of the z-score for a pregnancy length of 240 days and to the right of the z-score for a pregnancy length of 306 days, and then add these probabilities together. Using a standard normal distribution table or calculator, we find that the probability to the left of z = -3.08 is approximately 0.001, and the probability to the right of z = 2.00 is approximately 0.023. Therefore, the probability that the alleged father was not the father is:

To calculate the probability that the alleged father could be the father, we need to find the area under the normal distribution curve between the z-scores for a pregnancy length of 240 days and a pregnancy length of 306 days. Using a standard normal distribution table or calculator, we find that the probability between z = -3.08 and z = 2.00 is approximately 0.953. Therefore, the probability that the alleged father could be the father is:

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Answer:

8.75n = 61.25

Step-by-step explanation:

We multiply n, number or hours, times how much he makes per hour.

Therefore, it is 8.75n = 61.25

Hope this helps :)

The surface integral of the function g(x, y, z) over the surface S is evaluated.

To evaluate the surface integral, we consider the rectangular prism formed by the coordinate planes and the planes x = 2, y = 2, z = 3. This prism encloses a six-sided surface S. The surface integral of a function over a surface measures the flux or flow of the function across the surface.

In this case, we are integrating the function g(x, y, z) over the surface S. The specific form of the function g(x, y, z) is not provided in the given question. To evaluate the surface integral, we need to know the expression of g(x, y, z).

Once we have the expression for g(x, y, z), we can set up the integral by parameterizing the surface S and calculating the dot product of the function g(x, y, z) and the surface normal vector. The integral will involve integrating over the appropriate range of the parameters that define the surface.

Without the specific expression for g(x, y, z) or further details, it is not possible to provide the exact numerical evaluation of the surface integral. However, the general procedure for evaluating a surface integral involves parameterizing the surface, setting up the integral, and then performing the necessary calculations.

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Answer: 1.2 blocks

Step-by-step explanation:

Timothy walks 12 blocks in 10 minutes so it can be written as

12 blocks = 10 minutes

divide both sides by 10

1.2 blocks per minute

Answer:

Perimeter = 25.6 cm

Explanation:

Square Perimeter Formula: \(P = 4 * s (side length)\)

\(P = 4*6.4cm \\P = 25.6 cm\)

Answer:

17 minutes.

Step-by-step explanation:

Already has 250 points.

45 (points per min.) times 17(min.) is 765.

765 + 250 = 1015 points

It would take her 17 minutes.

Answer:

an estimate is 17 minutes :)

Step-by-step explanation:

Answer:

radius is 50.95

area is 8158.55

Step-by-step explanation:

cirumference = 2pi×r

or,320.28=2×(22/7)×r

or, r=320.28/(2×(22/7))

r=50.95 cm

area=(22/7)r^2

=8158.55

The gallon used by the first car is 35 gallons and the gallon used by the first car is 25 gallons.

The first step is to form a system of linear equation:

35a + 20b = 1725 equation 1

a + b = 60  equation 2

Where:

The elimination method would be used to solve this question.

Multiply equation 2 by 35:

 35a + 35b = 2100  equation 3

Subtract equation 1 from equation 3:

15b = 375

Divide both sides of the equation by 15:

b = 375 / 15

b = 25

Substitute for b in equation 2 :

a + 25 = 60

a = 60 - 25

a = 35

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The radius of the circle is 150 meters.

If a circular arc of the given length s subtends the central angle θ on a circle, find the radius of the circle.

s = 3 km, θ = 20°

We are given the length of the circular arc (s) and the central angle θ, and we need to find the radius (r) of the circle.The formula that relates the length of a circular arc (s), the central angle (θ), and the radius (r) of the circle is:s = rθ, where s is in length unit (km) and r is in length unit (km) and θ is in degrees.

So, to find the radius of the circle, we need to rearrange the above formula as follows:r = s/θPutting in the values,s = 3 kmθ = 20°

Now substituting the values in the above formula we get:r = s/θr = 3/20The radius of the circle is 0.15 km or 150 m (rounded to the nearest meter).

Therefore, the radius of the circle is 150 meters.

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Answer: 46.2m

Side A = 7m

Side B = 19m

Side C = 20.2m

Side A + Side B + Side C = ABC

7 + 19 + 20.2 = 46.2m

Answer:

99.4 square yards

Step-by-step explanation:

The formula for the area of a triangle is:

\(A = \dfrac{1}{2} \cdot \text{base} \cdot \text{height}\)

We can plug the given dimensions into this formula and solve for \(A\).

\(A = \dfrac{1}2 \cdot (28\text{ yd}) \cdot (7.1 \text{ yd})\)

\(\boxed{A = 99.4\text{ yd}^2}\)

So, the area of the triangle is 99.4 square yards.

The difference between the two localities is 1 speaker.

Let's solve the problems step by step:

a) To determine which of the two locations has a higher number of speakers of a language other than Spanish, we need to compare the ratios of speakers in El Cerrito and El Paseo.

In El Cerrito, 3 out of every 4 people speak a different language than Spanish. This can be written as a ratio: 3:4.

In El Paseo, 5 out of every 7 people speak a different language than Spanish. This can be written as a ratio: 5:7.

To compare the two ratios, we can find a common denominator. In this case, the least common multiple of 4 and 7 is 28.

In El Cerrito, the ratio becomes 21:28 (multiplying both sides by 7).

In El Paseo, the ratio becomes 20:28 (multiplying both sides by 4).

From the ratios, we can see that in El Cerrito, there are 21 out of 28 people who speak a different language than Spanish, while in El Paseo, there are 20 out of 28 people who speak a different language than Spanish.

Since 21 is greater than 20, El Cerrito has a higher number of speakers of a language other than Spanish.

b) The difference between the two localities can be calculated by subtracting the number of speakers in El Paseo from the number of speakers in El Cerrito.

In El Cerrito, there are 21 speakers of a different language than Spanish.

In El Paseo, there are 20 speakers of a different language than Spanish.

The difference is obtained by subtracting 20 from 21, resulting in a difference of 1 speaker.

Therefore, the difference between the two localities is 1 speaker.

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Answer:

  179.3 square units

Step-by-step explanation:

The area of the figure is the sum of the areas of the parts. That is, the area is the sum of the area of the rectangle, and the area of the semicircle.

__

The area of a circle with radius 5 is ...

  A = πr²

  A = π(5²) = 25π

The area of the semicircle is half that:

  semicircle area = (25π)/2 = 12.5π ≈  39.3 . . . . square units

The area of a rectangle with length L and width W is ...

  A = LW

The width of this rectangle is the diameter of the circle, twice the radius, or 10 units.

  A = (14)(10) = 140 . . . . square units

The sum of the areas of the parts is ...

  total area = semicircle area + rectangle area

  total area = 39.3 + 140 = 179.3 . . . . square units

The 95% prediction interval for rolling distance when a child riding the bike weighs 106 lbs is 100.7

Prediction interval:

In math, prediction interval means the range of values that is likely to contain the value of a single new observation given specified settings of the predictors.

Given,

Here we need to find the  95% prediction interval for rolling distance when a child riding the bike weighs 106 lbs and we have to round the resulting value into four decimal places.

While we looking into the given question, we have identified the value of

Weight = 106 lbs

Prediction interval = 95%

So, the rolling distance of the child is calculated as,

=> 106 x 95/100

=> 100.7

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Answer:

The process capability index for this system is 0.9103

Step-by-step explanation:

Upper specification = 1.649 inches

Lowe Specification = 1.507 inches

Mean = 1.57 inches

Standard Deviation = 0.026 inches

Process Capability Index = PCI

PCI = (Upper specification - lower specification)/6(standard deviation)

So, we get,

PCI = (1.649 - 1.507)/((6)(0.026))

PCI = 0.142/0.156

PCI = 0.9102564

To four decimal places, we get,

PCI = 0.9103

The probability of getting heads is 3/8.

Probability:

Probability is a branch of mathematics that quantifies the likelihood of an event occurring or the likelihood of a statement being true. Probability is a number between 0 and 1, with 0 generally indicating impossibility and 1 indicating certainty. that an event will occur. A simple example is tossing a fair (unbiased) coin. Since the coin is fair, the two outcomes (heads and tails) are equally likely. The probability of heads is the same as the probability of tails. Since no other outcome is possible, the probability of heads or tails is 1/2 (also written as 0.5 or 50%).

Since 3 is a small number, let's list out all possible combinations.

H represents a head while T represents a tail.

3 Heads

HHH

2 Heads

HHT

HTH

THH

1 Head

HTT

THT

TTH

0 Head

TTT

The answer is

3/1+3+3+1=3/8

                                            OR

In general, we will find that the list resembles a particular row of the pascal's triangle.

If you want to know the probability of getting r heads (or tails) from n flips, it is the sum of the rth  elements in the n + 1 line. All elements of the series n+1.

\(\left[\begin{array}{ccc}N\\\\R\end{array}\right]\)/ 2ⁿ = \(\frac{n!}{r! * (n - r)!* 2^{n} }\)

n this case,

N =3andR= 2

   3!/ 2!×1! × 2³

= 6/ 2× 1 × 8

= 3/8

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Answer:15.65

Step-by-step explanation:

Answer:

here is your answer

Answer:hey guys just saying its 1/52

Step-by-step explanation:

Answer: x= 6

Step-by-step explanation:

Since the shape is a parallelogram, the angles will either be equal to each other or add up to 180.  

You can see they do not look the same so they add up to equal 180

12x + 3 +105 = 180

12x + 108 = 180

12x = 72

x = 6

The area of triangle PQR is 25/2 * √(5).

In geometry, a triangle is a two-dimensional shape with three straight sides and three angles. It is one of the basic shapes in geometry and has many important properties and applications.

The sum of the interior angles of a triangle is always 180 degrees, and the exterior angles sum to 360 degrees. The three sides of a triangle can be classified according to their lengths and their angles.

To find the area of triangle PQR, we can use the formula:

Area = (1/2) * base * height

where the base and height are the lengths of two sides of the right triangle that meet at a 90-degree angle.

We can use the distance formula to find the lengths of the sides of triangle PQR:

PQ = √[(x_Q - x_P)² + (y_Q - y_P)²] = √[(-1 - (-6))² + ((-1) - 9)²] = √[25 + 100] = 5√(5)

PR = √[(x_R - x_P)² + (y_R - y_P)²] = √[(-9 - (-6))² + (5 - 9)²] = √[9 + 16] = 5

QR = √[(x_R - x_Q)² + (y_R - y_Q)²] = √[(-9 - (-1))² + (5 - (-1))²] = √[64 + 36] = 2√20) = 4√(5)

Since triangle PQR is a right triangle, the base and height are PQ and PR, respectively. Therefore, the area of triangle PQR is:

Area = (1/2) * PQ * PR = (1/2) * 5√(5) * 5 = 25/2 * √(5)

So the area of triangle PQR is 25/2 * √(5).

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3.765. I hope this is the awnser. <33!

Answer:

3.765 miles

Step-by-step explanation:

38.074 - 34.309 = 3.765

Answer:

x = 12

Step-by-step explanation:

Comparing corresponding sides of the 2 similar Δ 's inside the larger, then

\(\frac{x}{6}\) = \(\frac{6}{3}\) ( cross- multiply )

3x = 36 ( divide both sides by 3 )

x = 12

In the standard (x, y) coordinate plane, lines p and q intersect at the point (1, 3), while lines p and r intersect at the point (2, 5).

In the given scenario, lines p and q intersect at the point (1, 3) and lines p and r intersect at the point (2, 5). Each point of intersection represents a solution that satisfies both equations of the respective lines.

The equations of lines p and q can be determined using the point-slope form or any other form of linear equation representation. Similarly, the equations of lines p and r can be determined to find their intersection point.

The coordinates (1, 3) and (2, 5) indicate the precise locations where the lines p and q, and p and r intersect, respectively, on the coordinate plane.

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\(y = 3x -2~~~.....(i)\\\\y = 2x-5~~~.....(ii)\\\\\text{Substitute equation (i) in equation (ii):}\\\\3x-2 = 2x -5\\\\\implies 3x -2x = -5+2\\\\\implies x = -3\\\\\text{Substitute}~ x =-3,~ \text{in equation (i):}\\\\y = 3(-3) -2 = -9 -2 = -11\\\\\text{Hence,}~ (x,y) = (-3,-11)\)