44 points, please answer this question ASAP!

44 Points, Please Answer This Question ASAP!

Answers

Answer 1
add the 5 amounts:

-10 + -23 = -33

-33 + 8 + 7 + 3 = -15 cents
 now divide by the number of changes (5)


-15 / 5 = -3 cents
 the mean change is -3 cents

Answer 2

Answer:

-3

Step-by-step explanation:

mean = sum of terms/number of terms

mean = (-10-23+8+7+3)/5

mean = -15/5

mean = -3


Related Questions

A recipe that makes 36 oatmeal cookies requires 1.5 cups of oatmeal. How many cups of oatmeal would be needed to make 60 oatmeal cookies?

Answers

To solve this problem, we are going to use a proportion, letting the variable x represent the unknown number of cups of oatmeal that we need.

1.5 cups/36 cookies = x cups/60 cookies

To simplify a proportion like this, we can use cross-multiplication. This means multiplying the numerator of one fraction by the denominator of the other fraction and setting it equal to the product of the other numerator and denominator. This is modeled below:

(36)(x) = (1.5)(60)

To simplify, we begin by multiplying out each side.

36x = 90

Finally, we divide both sides of the equation by 36.

x = 2.5

This means that we need 2.5 cups of oatmeal to make the cookies.

Hope this helps!

Ogether, teammates pedro and ricky got 2675 base hits last season. pedro had 283 more hits than ricky. how many hits did each player​ have?

Answers

Let Ricky = x; so equation: x + (x+283) = 2675 ; Re-arrange so x = Ricky = 1196 hits with Pedro 1196 + 283 = 1479.

I need help with this question!

Answers

The definition of similar triangles says that 2 triangles are similar if they have the same shape but different size. There are two criteria to check for this:
1) If all angles in one triangle are equal to the angles in another one, then the 2 are equal.
2) If the sides have the same proportions, then the 2 triangles are similar.


1) We have that all the angles of the 2 triangles have an equal angle in the other triangle. In specific, Q is matched to B, P to A and R to C. Hence, since corresponding angles are congruent, the two triangles are similar.
2) Here we are given information about the sides of the triangles, so we will check the second criterion. We form the ratio of the largest sides of each trangle and the shortest sides. 30/5=6. For the shortest sides, 18/3=6. Finally for the middle sides, 24/4=6. Hence, we have that the triangles are similar since the ratios are equal. (it doesn't matter whether we take the bigger or the smaller side as a numerator, as long as we are consistent).

Ellie made a cube-shaped cardboard box with side-length s. The area of cardboard she used is given by the formula A = 6s2, where s represents the side length of the cube.

Answers

the correct question is 
Ellie made a cube-shaped cardboard box with side-length s. The area of cardboard she used is given by the formula A = 6s2, where s represents the side length of the cube.

Which equation correctly solves the formula for s?

we know that
A = 6s²---------> clear the variable s
s²=A/6------> applying square root both members
s=√(A/6)--------> s=(1/6)*√(6*A)

the answer is
s=(1/6)*√(6*A)

Graph the solution of 2 ≥ 4 - v

Answers

For this case we have the following inequality:
 2 ≥ 4 - v
 The first thing we must do in this case is to clear the value of v.
 We have then:
 v ≥ 4 - 2
 v ≥ 2
 Therefore, the solution set is given by:
 [2, inf)
 Answer:
 
See attached image.

Answer:

Ok so ppl it just A

Step-by-step explanation:

To solve this problem, we must first subtract 4 from both sides of the inequality. This gives us -2 ≥ -v. Next divide both sides by -1. Remember, when you divide by a negative in an inequality, it becomes necessary to flip the direction of the inequality symbol. Therefore, the answer to the inequality is 2 ≤ v, which is equivalent to v ≥ 2.

Find the volume of a right circular cone that has a height of 17.5 ft and a base with a diameter of 6.1 ft. Round your answer to the nearest tenth of a cubic foot.

Answers

Answer:
volume of cone = 170.5 ft³

Explanation:
The volume of the right circular cone can be calculated as follows:
volume = [tex] \frac{1}{3} * \pi *r^2 *h[/tex]

We are given that:
diameter = 6.1 ft.......> This means that: radius (r) = 6.1 / 2 = 3.05 ft
height (h) = 17.5 ft

Substitute with the givens in the above equation to get the volume as follows:
volume = [tex] \frac{1}{3} * \pi *(3.05)^2*17.5[/tex]

volume = 170.477 which is approximately 170.5 ft³

Hope this helps :)

What is the negative angle that is coterminal with 120∘120∘. write your answers in radians?

Answers

To find a positive and a negative angle coterminal with a given angle, you can add and subtract 360°.

[tex]120^o-360^o=-240^o=-\dfrac{240\pi}{180}=-\dfrac{4\pi}{3}[/tex]

what is the product of 2.31 ans 0.21

Answers

2.31 x 0.21=0.4851 that should be the answer

What is the product of 2.31 and 0.21?

Solution:

We need to find 2.31*0.21

Let us first find 231*21, then we would consider decimals

231*1=231

231*2=462

So, 231*21=231+4620=4851

So, we get 231*21=4851

But, we need to find, 2.31*0.21

There are two numbers after decimal in 2.31 (3 and 1). and, there are two numbers after decimal in 0.21(2 and 1)

So, In result of, 2.31*0.21 there must be four digits after decimal.

As, 231*21=4851

So, 2.31*0.21=0.4851 (four digits after decimal)

Answer:0.4851


A student is using the completing the square method to transform the equation x2-10x+ 36 = 0 to the form (x-h) 2+k = 0. which step would give him the correct answer?

Answers

Obviously the Correct Step would give him the correct answer lol !

But, here he goes !!

[tex]( {x}^{2} - 10x + 36)[/tex]

[tex] = ( {x}^{2} - 2(x)(5) + {(5)}^{2} ) + 11[/tex]

[tex] = (x - 5)^{2} + 11[/tex]

✓ So, h = 5 ; k = 11 would make him correct

Aaron bought a large basket of 59 apples for $22.95. He also bought a small basket of 18 apples for $8.95. Which am amount is the closest estimate of the cost per apple?

Answers

we know that
1) Aaron bought a large basket of 59 apples for $22.95
2) He also bought a small basket of 18 apples for $8.95.
so
total cost=$22.95+$8.95.=$31.9
total apples=59+18=77 apples

[closest estimate of the cost per apple]=total cost/total apples
[closest estimate of the cost per apple]=31.9/77-----> $0.41 per apple

the answer is
 $0.41 per apple

Calculate the cost per apple for large and small baskets, $0.39 per apple is the closest estimate.

To estimate the cost per apple, one must calculate the price of each apple in the large and small baskets, then average these amounts, resulting in approximately 44 cents per apple.

To find the cost per apple:

Calculate the cost per apple in the large basket: $22.95 / 59 apples = $0.39 per apple.

Calculate the cost per apple in the small basket: $8.95 / 18 apples = $0.50 per apple.

Compare the two costs: $0.39 is the closest estimate of the cost per apple.

50 POINTS!!!!
-
The Dust Bowl hit middle America a few years after the Great Depression started, and the Dust Bowl was considered one of the causes that continued the Great Depression during the 1930’s. Explain in three sentences how this natural disaster affected America’s economy in the 1930’s?

Answers

The Dust bowl was a terrible event that caused many people to lose money. Not only that, but the fact that they lost money meant that they where contributing to the Great Depression. The Great Depression started in the US, thanks to events like the Dust Bowl.

Please help asap! 45 points

Answers

B. By quick process of elimination, the two negatives are the only things that get a positive 4y^2 and a negative 16xy.
the answer is B. hope that help

Kristin decides to spend at most $50 for a birthday dinner at a restaurant, including a 15% tip.,

Write an inequality in one variable to represent this situation.

What is the most that her meal can cost before a tip?

Answers

let
x------------> a birthday dinner at a restaurant, including a 15% tip.

we know that

Kristin decides to spend at most $50
so
x <= $50

the answer part a) is
x <= 50

Part b) What is the most that her meal can cost before a tip?

the tip is 15%
so
cost after tip=1.15*cost before a tip
cost before a tip=cost after tip/1.15
50/1.15-------> $43.48

the answer part b) is 
$43.48

Find the center, vertices, and foci of the ellipse with equation 2x2 + 9y2 = 18.

Answers

we have that
2x² + 9y² = 18------> divided by 18
so
2x² /18+ 9y²/18 = 18/18------> x/9² + y²/2 = 1

Part a)
the equation of the ellipse if of the form
(x-h)²/a²+(y-k)²/b²=1
where (h,k) is the center
in this problem
(h,k) is (0,0) ------> is the origin
a²=9------> a=3
b²=2-----> b=√2

Part b)
vertices are
(h+a,k)  and (h-a,k)
(0+3,0)-----> (3,0)
(0-3,0)----> (-3,0)

Part c)
foci are
(h+c.k)  and (h-c, k)
where 
c²=a²-b²-----> c²=9-2-----> c²=7-----> c=√7

the foci are
(0+√7, 0)-----> (√7,0)
(0-√7,0)------> (-√7,0)


What is the approximate surface area of the sphere 15yd?
A: 225 yd^2
B: 707 yd^2
C: 1,767 yd^2
D: 5,301 yd^2

Answers

if the diameter of the sphere is 15, then its radius is half that, or 7.5,

[tex]\bf \textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\ -----\\ r=7.5 \end{cases}\implies SA=4\pi (7.5)^2\implies SA=225\pi [/tex]

The approximate surface area of the sphere will be 707 yd^2

What is sphere?Sphere is a round solid figure, or its surface, with every point on its surface equidistant from its centre.A sphere is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. A sphere is the set of points that are all at the same distance r from a given point in three-dimensional space.

How to solve this problem?

The steps are as follow:

Given the diameter of sphere is 15 ydSo the radius will be half of diameter which will be 7.5 ydThe surface area of sphere will be as follow:

r = 7.5 yd

Surface area of sphere = 4πr^2

Surface area of sphere = 4*π*(7.5)^2

Surface area of sphere = 706.85 yd^2

Surface area of sphere = 707 yd^2

So the approximate surface area of the sphere will be 707 yd^2

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A dog is attached to a 49 foot rope fastened to the outside corner of a fenced-in garden that measures 42 feet by 51 feet. Assuming that the dog cannot enter the garden, compute the exact area that the dog can wander.

Answers

Final answer:

The area that a dog can roam, attached to a 49-foot rope at the corner of a 42x51 foot garden, was initially calculated as a quarter-circle's area with mistakes acknowledged in the approach. The correct calculation involves more intricate geometrical considerations, considering the question's unique constraints.

Explanation:

To determine the area that a dog can wander, given it's attached to a 49-foot rope fastened to the outside corner of a fenced-in garden measuring 42 feet by 51 feet, we need to consider the shape of the area the dog can cover. The dog can cover a quarter-circle around each of two adjacent sides of the garden and a semi-circle along the side opposite the corner where the rope is fastened, provided the rope's length exceeds the garden's dimensions on those sides.

Calculating the area involves adding the areas of these three parts:

The quarter-circle around the 42-foot side: Area = 1/4 * π * (49)^2The quarter-circle around the 51-foot side: This area is already included in the first quarter-circle since the radius (49 feet) covers both sides.The semi-circle along the side opposite to the corner: Since the rope extends beyond the garden, this area is not applicable.

Therefore, the total area that the dog can wander is effectively the area of a quarter-circle with a radius of 49 feet. This can be calculated as:

Area = 1/4 * π * (49)^2 square feet

Calculating this gives an area of 1884.96 square feet (rounded to two decimal places).

However, upon reevaluation, it's clear that a mistake was made in the initial explanation; the correct approach is to consider not just a quarter-circle but also the additional areas the rope covers beyond the garden's dimensions.

The exact area that the dog can wander is [tex]{2401\pi} \)[/tex] square feet.

Identify the radius: The radius of the circle that the dog can wander is the length of the rope, which is 49 feet.

Calculate the area of the circle: Use the formula for the area of a circle, [tex]\( A = \pi r^2 \)[/tex], where [tex]\( r = 49 \)[/tex] feet.

[tex]\[ A = \pi \times 49^2 \][/tex]

Compute [tex]\( 49^2 \)[/tex]:

[tex]\[ 49^2 = 2401 \][/tex]

Multiply to find the area:

[tex]\[ A = \pi \times 2401 \][/tex]

The exact area that the dog can wander is [tex]{2401\pi} \)[/tex] square feet.

This calculation confirms that the dog can wander an area of [tex]\( 2401\pi \)[/tex] square feet within the fenced-in garden while attached to the 49-foot rope.

What is the range of f(x)

Answers

The range of f(x) is a single value which is the y-coordinate of any point on the horizontal line representing f(x).

The range of a function is the set of possible values its output can have. In this case, the function f(x) is a horizontal line. Since f(x) is restricted to the portion between x = 0 and x = 20, inclusive, the range of f(x) is the set of all y-values within that range. Since the graph of f(x) is a horizontal line, the range of f(x) is a single value, which is the y-coordinate of any point on the line.

Based on the graph shown below, the range of f(x) include the following: B. { f(x)| –∞ < f(x) ≤ 4}

In Mathematics and Geometry, a range is the set of all real numbers that connects with the elements of a domain.

Additionally, the vertical extent of any graph of a function represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.

By critically observing the graph shown in the image attached below, we can reasonably and logically deduce the following range:

Range = (-∞, 4] or {f(x)| –∞ < f(x) ≤ 4}

Complete Question;

What is the range of f(x)?

{ f(x)| –∞ < f(x) < ∞}

{ f(x)| –∞ < f(x) ≤ 4}

{ f(x)| 4 < f(x) < ∞}

{ f(x)| 0 ≤ f(x) < ∞}

What is the smallest positive integer n such that 2n is a perfect square and 3n is a perfect cube?

Answers

Short answer 2 * 2 * 2 * 3 * 3

When you multiply by 2 you get 144 which is a perfect square.
When you multiply by 3 you get 216 which is a perfect cube

So the answer is 2 * 2 * 2 * 3 * 3 = 72

Please help meeeee.....

Answers

the answer should be 4

What is the ratio of the length of the radius and the length of the diameter for all circles?

Answers

the diameter is twice the radius  (D=2R), then

[tex]\frac{R}{D}=\frac{1}{2}[/tex]

Quick, anyone know the answer?

Answers

Your answer would be A :)
I’d imagine the answer would be A, but I’m not 100% sure

When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores?

A) 40 and 100

B) 48 and 96

C) 56 and 88

D) 64 and 80

Answers

95% are within 2 standard deviations of the mean, that is, 72∓2×8. The appropriate choice is ...
  C) 56 and 88

A glass cylinder is completely filled with 24x^5y^8 cubic inches of salt solution. The jug has a base area of 4x^5 square inches. The hight of the jug, in inches, is represented by the expression 24x^5y^8/ 4x^5. Which of the following simplified expressions represents the height of the jug in inches?



A: 6y^3
B: 6y^8
C: 6xy^8 (I think it's this one....)
D: 6x^10y^8

Answers

we know that

volume of a cylinder=area of the base*height
area of the base=4x^5  in²
height=24x^5y^8/ 4x^5 in
volume=24x^5y^8 in³

height=24x^5y^8/ 4x^5 ------> (24/4)*(x^5/x^5)*(y^8)------> (6)*(1)*(y^8)-----> 6y^8

the answer is
B: 6y^8

The base is a 45 45 90 triangle with a leg of 5 in. The height is 1.8 what’s the volume of the prism

Answers

Final answer:

The volume of the prism is 22.5 cubic inches.

Explanation:

To find the volume of the prism, we need to first find the area of the base and then multiply it by the height. In this case, the base is a 45-45-90 triangle with a leg of 5 inches. The area of a triangle is given by the formula 1/2 * base * height, so the area of the base is 1/2 * 5 * 5 = 12.5 square inches. The height of the prism is given as 1.8, so we can now calculate the volume by multiplying the area of the base by the height: 12.5 * 1.8 = 22.5 cubic inches.

Lance rolls a die 5 times. What is the probability that he rolls an even number all five times?

Answers

If it is a six-sided dice, then the probability would be about an 8% chance.

Lance rolls a die 5 times

In a six sided dice, the even numbers are 2, 4  and 6. So 3 even numbers

the probability that he rolls an even number = [tex]\frac{3}{6} = \frac{1}{2}[/tex]

the probability that he rolls an even number all five times

= [tex]\frac{1}{2} *\frac{1}{2} * \frac{1}{2} * \frac{1}{2} * \frac{1}{2}= \frac{1}{32}[/tex]

So answer is [tex]\frac{1}{32}[/tex]


the frequency of A4 is 440.00 Hz.
what is the frequency of A6, which is two octaves above A4?

Answers

To solve this problem you must apply the proccedure shown below:

 1. You have the following information given in the problem above: The frequency of A4 is 440.00 Hz.

 2. So, you must apply the following formula to calculate the frequency of A6, which is two octaves above:

 (2^n)f

 Where n is the octaves above and f is the known frequency.

 3. Therefore, you have:

 A6=(2^n)f
 A6=(2^2)(440.00 Hz)
 A6=1760 Hz

 Therefore, the answer is: A6=1760 Hz.
The formula for getting the unknown frequecy is given by, (2∧n)×f.
Where n ⇒the number of octavos above A4 and 
            f ⇒the given frequency

So, the frequency of  A6 is calculated as follows. 

Frequency = (2∧2)×440.00
                  = 1760.00 Hz

an interval has the notation (-9,-7). find the distance from the midpoint of the interval to either end point

Answers

the interval is the distance between the points -9 and -7
 so you have -9, -8, -7

-8 would be the midpoint and the distance from the midpoint to the endpoint would be -9 - -8 = 1

Which algebraic rule describes the 180° counterclockwise rotation about the origin

Answers

rule describes the 180° counterclockwise rotation about the origin=
(x,y)→(−x,−y)

Answer:

[tex](x,y)\rightarrow (-x,-y)[/tex]

Step-by-step explanation:

We are asked to find the the algebraic rule describes the 180° counterclockwise rotation about the origin .

We know that when we rotate a point 180° counterclockwise rotation about the origin , the x and y-coordinates change their sign.

[tex](x,y)\rightarrow (-x,-y)[/tex]

Therefore, our required rule is [tex](x,y)\rightarrow (-x,-y)[/tex].

When finding the area of a circle do you times your raduis by 2?

Answers

No. Area of a circle equals pi times the radius squared.  That means multiply the radius times itself. For example, if the radius is 3, the area = π x 3 x 3 = 9π

Stella has 6 pounds of chocolate. She will use 2/3 pound of the chocolate to make one cake. How many cakes can she make

Answers

She will make a total of 4 cakes

The number of cakes she can make is 9.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Stella has 6 pounds of chocolate. She will use 2/3 pounds of the chocolate to make one cake.

The number of cakes will be calculated as,

Number = 6 / ( 2 / 3 )

Number = ( 6 x 3 ) / 2

Number = 9

Therefore, the number of cakes will be 9.

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