Answer:
The answers are B,D,E
Step-by-step explanation:
Answer:
bde
Step-by-step explanation:
Mattie Evans drove 350 miles in the same amount of time that it took a turbopropeller plane to travel 1350 miles. The speed of the plane Has 200 mph faster than
the speed of the car. Find the speed of the plane.
(Simplify )
let
d1 = 250 mi the distance that Mattie Evans drove
v1 = the speed of Mattie Evans
d2 = 1300 mi the distance the plane traveled
v2 = the speed of the plane
The speed of the plane was 190 mph faster than the speed of the car:
v2 = v1 + 190
since time = distance/speed and they both traveled the same time we have
d1/v1 = d2/v2
250/v1 = 1300/v2 cross multiply
250v2 = 1300v1 divid eboth sides by 50
5v2 = 26v1
by solving the system of equations:
v2 = v1 + 190
5v2 = 26v1
we find
v1 = 45.24 mph
v2 = 235.24 mph
Jen mixes 1 1/2 cups of mango juice,1 1/2 pints of pineapple juice, and 1 1/8 juice to make a fruit punch. how many quarts of fruit punch does jen make?
To find the total volume of the fruit punch, we need to convert the given measurements to a consistent unit. Since we want to find the volume in quarts, we'll convert everything to quarts.
Given:
1 1/2 cups of mango juice
1 1/2 pints of pineapple juice
1 1/8 quarts of juice
We need to convert cups and pints to quarts:
1 1/2 cups = 1.5/4 quarts (since there are 4 cups in a quart)
1 1/2 pints = 1.5/2 quarts (since there are 2 pints in a quart)
Now let's add up the converted volumes:
1.5/4 quarts (mango juice) + 1.5/2 quarts (pineapple juice) + 1 1/8 quarts (juice)
To add fractions, we need a common denominator. In this case, the common denominator is 8.
1.5/4 quarts + 1.5/2 quarts + 1 1/8 quarts
= 3/8 quarts + 6/8 quarts + 9/8 quarts
= (3 + 6 + 9)/8 quarts
= 18/8 quarts
Now, let's simplify the fraction:
18/8 quarts = 9/4 quarts
Therefore, Jen makes 9/4 quarts of fruit punch.
Alternatively, we can convert the fraction to a mixed number:
9/4 quarts = 2 1/4 quarts
So, Jen makes 2 1/4 quarts of fruit punch.
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Consider the following parametric equations. a. Eliminate the parameter to obtain an equation in x and y. b. Describe the curve and indicate the positive orientation. x=9 cost, y= 1 + 9 sint; O sts 21 a. Eliminate the parameter to obtain an equation in x and y. (Type an equation.) b. Describe the curve and indicate the positive orientation. V is generated (Type ordered pairs. Simplify your answers.) V, starting at and ending at
y = 1 ± 9 sqrt(1 - (x/9)^2)
This is the equation of the curve in terms of x and y.
(x - 0)^2 + (y - 1)^2 = 9^2
This is the equation of a circle centered at (0, 1) with radius 9.
a. To eliminate the parameter t, we can use the trigonometric identity cos^2(t) + sin^2(t) = 1 to solve for cos(t) in terms of sin(t):
cos^2(t) = 1 - sin^2(t)
cos(t) = ±sqrt(1 - sin^2(t))
Since the x-coordinate of the curve is given by x = 9 cos(t), we can substitute the expression for cos(t) and obtain:
x = ±9 sqrt(1 - sin^2(t))
Squaring both sides and simplifying, we get:
x^2 + 9^2 sin^2(t) = 81
Solving for sin(t) and substituting into the expression for y, we obtain:
y = 1 ± 9 sqrt(1 - (x/9)^2)
This is the equation of the curve in terms of x and y.
b. The curve is a circle centered at (0, 1) with radius 9. The positive orientation is counterclockwise around the circle. The starting point is (9, 1) and the ending point is (-9, 1).
To see this, we can rewrite the equation of the curve in standard form:
(x - 0)^2 + (y - 1)^2 = 9^2
This is the equation of a circle centered at (0, 1) with radius 9. The positive orientation is counterclockwise around the circle because the parameter t increases in a counterclockwise direction. The starting point occurs when t = 0, which corresponds to x = 9 and y = 1, and the ending point occurs when t = pi, which corresponds to x = -9 and y = 1.
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The function p(s)=−10s2+110s−180 represents a company's profit p made on selling a product for s dollars per unit. Calculate and interpret p(6). (1 point)
1. If the company wants to make a profit of $6, they need to sell units for either $2 or $9.
2. The company's profit from selling their product for $6 per unit is $120.
3. If the company wants to make a profit of $6, they need to sell either 2 or 9 units.
4. The company's profit from selling 6 units is $120.
Answer:
2. The company's profit from selling their product for $6 per unit is $120.
Step-by-step explanation:
If we graph this function on a 2-axis plane such that the horizontal axis (x) represents \(s\), or the product's price per unit and the vertical axis (y) represents \(p(s)\), or the profit made by selling the product at \(s\) dollars, we'll find that the \(p\)-coordinate of the point where \(s=6\) is 120. Hence, $120 profit will be made if the product is sold at $6 per unit.
See the attached image for a graph.
NEED HELP ASAP
Is 100 part of the solution?
1.25(x+16)_> 140.75
100 is part of the solution to the inequality 1.25(x + 16) ≥ 140.75.
What is an inequality equation?
An inequality equation is a mathematical statement that compares two expressions using an inequality symbol such as < (less than), > (greater than), ≤ (less than or equal to), or ≥ (greater than or equal to).
To determine if 100 is part of the solution to the inequality 1.25(x + 16) ≥ 140.75, we can substitute 100 for x and see if the inequality holds true.
1.25(x + 16) ≥ 140.75
1.25(100 + 16) ≥ 140.75
1.25(116) ≥ 140.75
145 ≥ 140.75
Since 145 is greater than or equal to 140.75, the inequality holds true when x = 100.
Therefore, 100 is part of the solution to the inequality 1.25(x + 16) ≥ 140.75.
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hi can anyone solve and give a explaination plz? its for a friend
6.75
-2.25
----------
4.50
-2.25
----------
2.25
-2.25
----------
0.00
you could bowl 3 times (it starts off at 6.75 because I took away the cost of the shoes)
One force of 700 pounds and one force of 490 pounds act on a body at the same point so that the resultant force is 1120 pounds. find the angle between the resultant and the smaller force, to the nearest degree.
Answer:
angle 700 < angle 1120 pounds
Which information is not sufficient to prove that a parallelogram is a square.
The information that is not sufficient to prove that a parallelogram is a square is the measurement of its angles alone. Additional information about the lengths of its sides is needed to confirm if a parallelogram is indeed a square.
To determine whether a parallelogram is a square, we need to consider both the angles and the side lengths. A parallelogram has opposite sides that are parallel and equal in length, and opposite angles that are congruent. While a square is a special type of parallelogram with four equal sides and four right angles, simply knowing that the angles of a parallelogram are equal is not enough to establish it as a square.
To confirm that a parallelogram is a square, we must also ensure that all four sides are of equal length. In a square, all angles are right angles, and all sides are congruent. Therefore, if we have information about the side lengths of a parallelogram and can verify that they are equal, along with the knowledge that the angles are right angles, then we can conclude that the parallelogram is indeed a square.
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What is the value of x in the equation 3-2x=-1.5x?
оооо
-6
Answer:
x=6
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
x = 6
Step-by-step explanation:
In this equation, we are told to solve for the value of x. Thus, we must isolate the variable x (poor x... we're always trying to isolate it).
3 - 2x = -1.5x
(I'm going to swap sides to make it easier for me to solve. This doesn't change anything mathematically due to the associative laws. It's purely cosmetic.)
-1.5x = 3 - 2x
First, we can add 2x to both sides of the equation to get all algebraic expressions containing the variable x on one side of the equation alone.
0.5x = 3
For our next part here, let's convert 0.5 to a fraction to make life easier for us.
\(\frac{1}{2}\)x = 3
When isolating x in this, we are trying to get rid of 1/2. How can we do this? We can multiply is by 2!
\(\frac{1}{2}\)x · \(\frac{2}{1}\) = 1x (or simply x)
What we do to one side we must do to another.
x = 3 · 2
x = 6
Our answer is x = 6. Woo!
Which of the following are possible
side lengths for a triangle?
A. 18, 12, 6
B. 9, 15,4
C. 5, 18, 14
Answer:
C
Step-by-step explanation:
when u take the 2 shortest sides and add them up, they must be greater than the longest length.
How many acute angles are in triangle ABC?
Answer:
3
Step-by-step explanation:
There are always three acute angles in an acute triangle. The definition of an acute triangle is that it is a triangle in which all angles are less than 90 degrees.
Hopefully this helps :)
what’s the slope of y=x+5
Answer
if there´s any answer choice, the answer is 1
Step-by-step explanation:
570
1. Volume of a pyramid: 192 ftº: Volume of a rectangular prism:
2. Volume of a pyramid:
Volume of a rectangular prism: 729m
3. Volume of a cylinder: 285 cm: Volume of a cone:
4. Volume of a sphere:
Volume of a cylinder: 600cm
5. Volume of a cone: 50 m: Volume of a cylinder:
Answer:
576 FT^3
243 m^3
95 cm^3
400 cm^3
150 m^3
Step-by-step explanation:
Volume of a pyramid = 1/3 x ( length base x height)
Volume of a prism= ( length base x height)
1. prism = 192 x 3 = 576 FT^3
2. prism = 729 / 3 = 243 ft^3
volume of a cylinder = nr^2h
Volume of a cone = 1/3(nr^2h)
3. cone = 285/3 = 95
5. cylinder = 50 x 3 = 150
4. sphere = 600 / 1.5 = 400
Help me pls this is hard
Answer:
Opposite angles are right angles.
Step-by-step explanation:
There are no right angles in a parallelogram.
How do you make comparisons between an equation and a table?.
Overall, equations provide a mathematical representation and understanding of relationships, while tables present data points in a structured format.
When comparing an equation and a table, you can examine their characteristics, purpose, and the information they provide. Here are some points to consider when making comparisons:
Representation:
An equation represents a mathematical relationship between variables using symbols and mathematical operations. A table presents data or values in a structured format, typically organized into rows and columns.
Communication of Information:
Equations provide a concise and general representation of a relationship, allowing for predictions, calculations, and modeling. Tables present specific data points or values, providing a visual representation of how variables are related or how they change.
Variables:
Equations involve variables, which can be manipulated to explore different scenarios and analyze the relationship between quantities. Tables display specific values or data points for variables, showing how they vary or are related based on the given information.
Visualization:
Equations can express relationships symbolically and provide a mathematical understanding, but they may not offer a visual representation of data. Tables provide a visual representation of data points, allowing for a quick overview and easy comparison of values.
Flexibility:
Equations offer flexibility in terms of adjusting variables and parameters to explore different scenarios and make predictions. Tables can be easily modified or expanded by adding or removing data points to reflect new observations or additional information.
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The perimeter of a square megsures 26 cm. What is the length of one side of the square
Answer:
6.5 cm
Step-by-step explanation:
Please find step by step explanation on picture
Write an equivalent ratio for each ratio
Answer:2/5=4/10 and 1/4=2/8
Step-by-step explanation: you can simplify 4/10 to get 2/5 and same with 2/8. You would divide the fraction by two.
what is the range of 2 4 2 6 1
Answer:
Population size:5
Lowest value: 1
Highest value: 6
Range: 5
Thanks!
Which of the following is a critical number of the function: f(x)= 3
1
x 3
+4x 2
+7x Note that the function has multiple critical numbers. Only one is listed. x=−1 x=1 x=0 x=2 x=−2
the equation has no real solutions. Therefore, there are no critical numbers for the function f(x) = 31x³ + 4x² + 7x among the options given
To find the critical numbers of the function f(x) = 31x³ + 4x² + 7x, we need to find the values of x where the derivative of the function is equal to zero or undefined.
Let's find the derivative of f(x) first:
f'(x) = d/dx (31x³ + 4x² + 7x)
= 93x² + 8x + 7.
To find the critical numbers, we set f'(x) equal to zero and solve for x:
93x² + 8x + 7 = 0.
This quadratic equation does not factor easily, so we can use the quadratic formula to find the solutions for x:
x = (-b ± √(b² - 4ac)) / (2a).
Using the values a = 93, b = 8, and c = 7, we can calculate the solutions:
x = (-8 ± √(8² - 4 * 93 * 7)) / (2 * 93)
= (-8 ± √(64 - 2604)) / 186
= (-8 ± √(-2540)) / 186.
Since the discriminant is negative, the equation has no real solutions. Therefore, there are no critical numbers for the function f(x) = 31x³ + 4x² + 7x among the options given: x = -1, x = 1, x = 0, x = 2, x = -2.
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read the sentence Angie Wrote in her descriptive paragraph Choose two.
Answer: The Gusty and Howling wind
Step-by-step explanation: It the best choices out all them because the other choices would not fit the sentence correctly.
POINTS UP FOR GRABS!!!
The answer is D for the first and B for the second.
y = 14x, what is the constant of proportionality?
Answer:
the constant of proportionality is 14
The constant of proportionality is the ratio that relates two given values in what is known as a proportional relationship.
The constant of proportionality for y = 14x is 14.
What is constant of proportionality?The constant of proportionality is the ratio that relates two given values in what is known as a proportional relationship.
Example:
The number of apples in a crop is proportional to the number of trees in the orchard.
The ratio of proportionality is the average number of apples per tree.
We have,
y = 14x
We have two variables x and y.
We can write it as:
y/x = 14 or
y ∝ x i.e y = 14x
This means the constant of proportionality is 14.
Thus the constant of proportionality for y = 14x is 14.
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En la tienda tienen estas ofertas : 1/4 kg de chorizo : 9,25 €. 1/2 kg de queso : 8,50€.¿Cuánto vale 1 kg de cada producto?¿Cuánto cuesta un queso de 2kg?
Answer: 1. €37 and €17
2. €34
Step-by-step explanation:
Given Data:
Cost of 1/4kg of chorizo = €9.25
Cost of 1/2kg of cheese = €8.50
Therefore:
1. Cost of 1kg of each product.
If 1/4 kg or chorizo cost €9.25,
1kg = 1/4 which is known as one fourth or one quarter. There are 4 one fourth in 1
1kg = 1/4 + 1/4 + 1/4 + 1/4
Or
1kg = 4 * €9.25
1kg = €37
Cost of 1kg of chorizo is €37
Cost of 1kg of cheese
If 1/2kg = €8.50
Then; 1kg = 1/2 + 1/2
1kg = €8.50 + €8.50
1kg = €17
Cost of 1kg of cheese = €17
2. Cost of 2kg of cheese.
If 1kg of cheese cost €17
2kg = 2 * €17
2kg = €34
Cost of 2kg of cheese is €34
In your English class, you are given a list of 10 books. You are to choose 3 books to read over the summer. How many different groups of 3 books are available from the list of 10?
Answer:
120 different groups of 3
Step-by-step explanation:
You will use combination for this
\(\frac{n!}{(r!(n-r)!)}\)
n=total amount (10)
r=sample size (3)
simplifique a expressão a seguir:5x*(2+6x-5y)+2y*(2+3y-4x)=. ANSWER PLEASE
Answer:
Step-by-step explanation:
5x(2+6x-5y)+2y(2+3y-4x)
10x+(30x^2)-25xy + 4y+(6y^2)-8yx
correlation analysis is used to determine question 3 options: the equation of the regression line the strength of the relationship between the dependent and the independent variables a specific value of the dependent variable for a given value of the independent variable none of these alternatives is correct.
Correlation analysis is used to determine the strength of the relationship between the dependent and the independent variables. The correct option is : the strength of the relationship between the dependent and the independent variables.
Correlation analysis is a statistical technique used to measure the strength and direction of the relationship between two variables.
It helps determine how closely related or dependent the variables are on each other. The result of a correlation analysis is represented by a correlation coefficient, typically denoted by the symbol "r."
The correlation coefficient ranges from -1 to +1, where a value close to -1 or +1 indicates a strong relationship, while a value close to 0 indicates a weak or no relationship.
It provides valuable insights into the nature of the relationship, allowing researchers to understand how changes in one variable are associated with changes in the other variable.
The analysis does not provide the equation of the regression line or a specific value of the dependent variable for a given value of the independent variable.
Therefore, correlation analysis is used to assess the strength of the relationship between the dependent and independent variables.
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One number is seven more than a second number. Six times the first is 10 less than 2 times
the second. Find the numbers.
The value of the first number is ___.
The value of the second number is ___.
Answer:
Step-by-step explanation:
The first number is
−
13
and the second number is
−
6
Explanation:
Let's let the first number be
n
and the second number be called
m
.
Then, from the first sentence we can write:
n
=
m
−
7
and from the second sentence we can write:
2
n
=
6
m
+
10
Substitute
m
−
7
for
n
in the second equation and solve for
m
:
2
(
m
−
7
)
=
6
m
+
10
2
m
−
14
=
6
m
+
10
2
m
−
14
−
2
m
−
10
=
6
m
+
10
−
2
m
−
10
−
14
−
10
=
6
m
−
2
m
−
24
=
4
m
−
24
4
=
4
m
4
m
=
−
6
Now substitute
−
6
for
m
in the first equation and calculate
n
:
n
=
−
6
−
7
n
=
−
13
3 over 6=k over 7- find k's value
Step-by-step explanation:
3/6=k/7
cross multiply then
6k=21
divide by the coefficient of k
k=3.5
What are the steps for (4^-2x4^-3)^3?
Answer:
\(\frac{x^3}{1024^3}\)
Step-by-step explanation:
Use negative power rule: x^-a=1/x^a.
(1/4^2x * 4^-3)^3
simplify 4^2 to 16
(1/16x * 4 ^-3)^3
Use negative power rule: x^-a=1/x^a.
(1/16x * 1/4^3)^3
simplify 4^3 to 64.
(1/16x * 1/64)^3
use this rule: a/b * c/d = ac/bd.
(1*x*1/16*64)^3
Simplify the top part
(x/16*64)^3
Simplify the bottom
(x/1024)^3
use division distributive property: (x/y)^a=x^a/y^a.
x^3/1024^3
15x minus 8 is less than 32
Answer:
If you want this in an equation, it would be \(15x <32\)
If you want the answer to this, it would be \(x<2\frac{2}{15}\)
Step-by-step explanation:
Hope this helps:)