Answer:
k= - 2.5
Step-by-step explanation:
If the graph is the attached picture then according to this:
The graph is in V- shape. So if the corners of the graph are not at (0,0) than there must be a constant.
k is the constant which means that it is the amount the function is vertically shifted. The graph is shifted 2.5 units down, therefore the value of k is -2.5.
Thus option 1 is correct....
What is the equation of the line that passes through the point (-1, -3) and has a slope of -5?
A) y=-5x-8
B) y=-5x-16
C) y=-5x+16
D) y=-5x+8
Answer:
A) y = -5x - 8Step-by-step explanation:
The point-slope form of an equation of a line:
[tex]y-y_1=m(x-x_1)[/tex]
m - slope
(x₁, y₁) - point on a line
We have the slope m = -5, and the point (-1, -3). Substitute:
[tex]y-(-3)=-5(x-(-1))\\\\y+3=-5(x+1)[/tex]
Convert to the slope-intercept form (y = mx + b):
[tex]y+3=-5(x+1)[/tex] use the distributive property
[tex]y+3=-5x-5[/tex] subtract 3 from both sides
[tex]y=-5x-8[/tex]
Chase and Alonzo stand next to each other and throw baseballs in the air.
The path of Chase's ball is described by the equation y = - 4x2 + 5x + 7. The
path of Alonzo's ball is shown by the graph.
Answer:
Alonzo baseball
Your question is incomplete and lacks a graph. Please check below for the full content.
Chase and Alonzo stand next to each other and throw baseballs in the air. The path of Chase's ball is described by the equation y = - 4x²+ 5x+ 7. The path of Alonzo's ball is shown by the graph. In each function, x is the horizontal distance the ball travels in meters, and y represents its height. Whose baseball reaches a greater height?
A. Both baseballs reach the same height.
B. Chase's baseball
C. Alonzo's baseball
The misssing graph is shown below.
The correct option is option C: Alonzo's baseball
What is a quadratic equation?The equation whose highest degree of the variable used in the equation is 2 and has 2 roots, is called quadratic equation.
Here the quadratic equation of the path of Chase's ball is given by y = - 4x²+ 5x+ 7
To compare the height of both paths followed by the ball
we have to first calculate the height of the path of Chase's ball.
the path of Chase's ball is f(x)=-4x²+ 5x+ 7
The function will have the highest value when f'(x) will be 0.
f'(x)=-8x+5
f'(x)=0
⇒-8x+5=0
⇒-8x=-5
⇒x=5/8
at x=5/8, function value is
f(x)=-4x²+ 5x+ 7
=-4(5/8)²+ 5(5/8)+ 7
=-4(25/64)+(25/8)+7
=(-25/16)+25/8+7
=8.5625
There maximum value of f(x) is 8.5625.
The maximum height reached by Chase's ball will be 8.5625m.
From the graph of the path of Alonzo's ball, it is clear that
The maximum height reached by Alonzo's ball will be 9m.
As 8.5625m < 9m
Alonzo's baseball will reach greater height.
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A group of friends go to the movies. The function h(x) represents the amount of money spent, where x is the number of friends at the movies. Does a possible solution of (6.5, $95.25) make sense for this function? Explain your answer.
This answer does not make sense because you can't buy half a movie ticket
Answer: If h(x) represents the amount of money spent and x the amount of friends, then we can write it as in a pair as (x, h(x))
Then the pair given is (6.5, $92.25)
Here you see a problem, x is 6.5, knowing that x represents the amount of friends, this is a problem because you need to have a whole number ( you can't have a 0.5 of a friend)
So the domain of h(x) is only the natural numbers, then the possible solution of (6.5, $92.25) doesn't make sense because 6.5 is not a natural number.
PLEASE I NEED HELP!!!! What is the type of two-dimensional solid created by a vertical cross section of the cone that passes through the apex? What is the area of the cross section?
triangle; area = 45 ft2
triangle; area = 90 ft2
circle; area = 36π ft2
circle; area = 144π ft2
Answer:
triangle; area = 90 ft2
Step-by-step explanation:
THe type of two dimensional solid created by a vertical cross section of the cone that passes through the apex is a triangle, as you can see in the picture, if you draw a line that cuts the cone in half passing through the apex it would just be a triangle, and the area of the cross section is given by the formula:
[tex]a=\frac{b*h}{2}[/tex]
Since you have the radius of the base of the cone, you need the diameter to calculate the area, the diameter is given by the next formula:
[tex]D=2r[/tex]
[tex]D=2(6)[/tex]
[tex]D=12[/tex]
Now you just put your values into the formula of the triangle:
[tex]a=\frac{(12)(15)}{2}[/tex]
[tex]a=\frac{(180}{2}[/tex]
[tex]a=90[/tex]
So the area of the triangle formed is:
[tex]90ft^{2}[/tex]
Answer:
B
Step-by-step explanation:
correct on ed2020
Determine if the ordered pair (6, 4) is a solution to the inequality
[tex]y < \frac{3}{4}x - 3[/tex]
A.No, because (6, 4) is above the line
B.Yes, because (6, 4) is below the line
C.Yes, because (6, 4) is on the line
D.No, because (6, 4) is on the line
Answer:
A
Step-by-step explanation:
all we need to do is to plug the point (6,4) in the inequality and see if it satisfies it :
pay attention that here we have x=6 y=4
4<[tex]\frac{3}{4} (6) - 3[/tex]
we simplify we get :
4<4.5-3
4<1.5 which is incorrect so (6,4) is not a solution. moreover
notice that 4 is > than 1.5 so the point lies above the line
thus the answer is : A
you can also solve this problem by graphing the line [tex]y= [/tex][tex]\frac{3}{4} x-3[/tex] and plotting the point (6,4) and hence you will notice that the point is above the line
Answer:
A. No, because (6, 4) is above the lineStep-by-step explanation:
[tex]y<\dfrac{3}{4}x-3\\\\\text{Put the coordinates of the point and check the inequality:}\\\\(6,\ 4)\to x=6,\ y=4\\\\4<\dfrac{3}{4}\cdot6-3\\\\4<\dfrac{18}{4}-3\\\\4<4.5-3\\\\4<1.5\qquad\bold{FALSE}\\\\\text{Therefore your answer is NO, because (6, 4) is above the line.}[/tex]
[tex]\text{Other mathod:}\\\\\text{Show this inequality in the coordinate system.}\\\\\text{Draw the dotted line}\ y=\dfrac{3}{4}x-3.\\\\for\ x=0\to y=\dfrac{3}{4}(0)-3=0-3=-3\to(0,\ -3)\\\\for\ x=4\to y=\dfrac{3}{4}(4)-3=3-3=0\to(4,\ 0)\\\\\text{shaded region below the line}\\\\\text{Mark point (6, 4) and check if it lies in the shaded region.}[/tex]
Last year, your team bought 11 baseball caps for $55. This year, the cost per cap is the same. Write a
proportion that gives the cost c of buying 15 baseball caps.
To find the cost of buying 15 baseball caps, we set up a proportion using the information about the cost per cap from last year. The cost of buying 15 caps is $75.
Explanation:To write a proportion that gives the cost of buying 15 baseball caps, we can use the fact that the cost per cap is the same as last year. Let c represent the cost of buying 15 caps. We can set up the proportion as follows:
11 caps / $55 = 15 caps / c
To solve for c, we can cross-multiply and solve for the unknown variable:
11c = 15 * $55
c = (15 * $55) / 11 = $75
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To find the cost of buying 15 baseball caps, set up a proportion of 11 caps for $55 and 15 caps for (c). Solve for (c) by cross multiplying and dividing by 11. The cost of buying 15 baseball caps would be $75.
Explanation:To write a proportion that gives the cost (c) of buying 15 baseball caps, we can set up the ratio of the number of caps to the cost of the caps in two scenarios: 11 caps for $55 and 15 caps for (c). Since the cost per cap is the same in both scenarios, the proportion would be:
11/55 = 15/(c)
To solve for (c), we can cross multiply:
11 * c = 15 * 55
Dividing both sides of the equation by 11, we find:
c = 15 * 55 / 11 = 75
Therefore, the cost of buying 15 baseball caps would be $75.
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At a certain distance fro a pole, the angle of elevation to the top of the pole is 28 degrees. IF the pole is 6.3 feet tall, what is the distance fro the pole?
Answer:
The distance from the pole is 11.8 ft
Step-by-step explanation:
Let
x------> the distance from the pole
we know that
The tangent of angle of 28 degrees is equal to divide the opposite side to angle of 28 degrees ( the height of the pole) by the adjacent side to angle of 28 degrees ( the horizontal distance from the pole)
so
tan(28°)=6.3/x
Solve for x
x=6.3/tan(28°)=11.8 ft
Final answer:
The distance from the pole is found by using the tangent function with the given angle of elevation (28 degrees) and the pole's height (6.3 feet), resulting in a distance of approximately 12.04 feet.
Explanation:
To calculate the distance from the pole given the angle of elevation and the height of the pole, you can use trigonometric functions. The angle of elevation is 28 degrees and the height of the pole is 6.3 feet. You can use the tangent function, which relates the angle of a right triangle to the ratio of the opposite side to the adjacent side.
Let d represent the distance from the pole. The tangent of the angle of elevation (28 degrees) equals the opposite side (6.3 feet) over the adjacent side (distance d).
tan(28°) = 6.3 / d
To find d, rearrange the equation: d = 6.3 / tan(28°). Using a calculator for tan(28°), you obtain d ≈ 12.04 feet.
Therefore, the distance from the pole is approximately 12.04 feet.
Two cars are 270 miles apart and travel toward each other on the same road. They meet in 3 hours. One car travels 2 mph faster than the other. What's the average speed of each car?
A. 42 mph and 44 mph
B.44 mph and 46 mph
C.41 mph and 43mph
D.43mph and 45mph
Answer:
B.44 mph and 46 mph
Step-by-step explanation:
This question is on relative speed
when cars move towards each other, you add their individual speeds to get their relative speed
Lets have two cars , A and B
Let car A to have an average speed of x m/h towards the right hand side
Let car B to have an average speed of x+2 m/h towards the opposite direction
The distance between the cars is 270 miles
Time of meeting is 3 hours
The relative speed will be x+x+2=2x+2 miles per hour
Apply the formula for time=Distance/speed =D/S
[tex]t=\frac{D}{S} \\\\\\3=\frac{270}{2x+2} \\\\\\3(2x+2)=270\\\\\\6x+6=270\\\\\\6x=270-6\\\\\\6x=264\\\\\\x=\frac{264}{6} =44[/tex]
x=44 miles per hour
x+2=44+2=46 miles per hour
solution
44 mph and 46 mph
Final answer:
Two cars are traveling towards each other at speeds where one car is 2 mph faster than the other. They meet after 3 hours covering 270 miles. By setting an equation with the distance formula, we find that the slower car's speed is 44mph and the faster car's speed is 46mph. (Option B)
Explanation:
The question involves calculating the average speed of two cars traveling towards each other on the same road and meeting after a certain time. To solve this, we can set up an equation using the formula for speed, which is distance divided by time.
Let's denote the speed of the slower car as ‘s’ mph (miles per hour). Consequently, the faster car travels at ‘s+2’ mph. When they meet after 3 hours, both cars together will have covered a distance of 270 miles. Thus, the total distance covered by both cars can be written as:
Total distance = (speed of car A)×(time) + (speed of car B)×(time)
270 miles = s×3 hours + (s+2)×3 hours
This simplifies to:
270 = 3s + 3s+ 6
Combining like terms and simplifying, we get:
270 = 6s + 6
Subtract 6 from both sides to find:
264 = 6s
Dividing both sides by 6 yields:
s = 44 mph
Therefore, the slower car travels at 44 mph and the faster car at 44+2 = 46 mph.
The correct answer is B. 44 mph and 46 mph.
What is the area of a trapezoid with bases of 15.8 yd and 21.8 yd and a height of 11.7 yd?
439.92 yd2
219.96 yd2
127.53 yd2
92.43 yd2
Add the bases together, divide that by 2 then multiply by the height.
15.8 + 21.8 = 37.6
37.6/2 = 18.8
18.8 x 11.7 = 219.96 yd^2
Answer:
B) 219.96 yd2
Step-by-step explanation:
The formula for finding the area of a trapezoid is:
(a + b) /2*h
Now you would plug in the numbers
(15.8 + 21.8) /2*11.7
Now solve this in order of operations
(15.8 + 21.8) /2*11.7
37.6/2*11.7
18.8*11.7
219.96
help me on my home work
what is 2*2*2*2*0=
Answer:
0
Step-by-step explanation:
Anything multiplied by 0 gives you an answer of 0, therefore 2*2*2*2*0=0
Answer:
0
Step-by-step explanation:
In most cases, zero times anything is zero.
Here we have 2*2*2*2 = 2^4 = 16. Thus,
2*2*2*2*0 = 16(0) = 0
Write 3 different ways you can express multiplication using the problem 8 times a number
Answer:
1) 8x5
2) 8x10
3)8x20
If f(x)=2x^2+3x−4, and g(x)=−8x−4, what does f(x)+g(x) equal?
f(x)=2x^2+5x+8
f(x)=2x^2−5x−8
f(x)=2x^2+11x−8
f(x)=2x^2+5x
[tex]\( f(x) + g(x) \) equals \( 2x^2 - 5x - 8 \).[/tex] (option b)
To find [tex]\( f(x) + g(x) \)[/tex], we need to add the functions f(x) and g(x):
[tex]\[ f(x) + g(x) = (2x^2 + 3x - 4) + (-8x - 4) \][/tex]
[tex]\[ = 2x^2 + 3x - 4 - 8x - 4 \][/tex]
[tex]\[ = 2x^2 + (3x - 8x) + (-4 - 4) \][/tex]
[tex]\[ = 2x^2 - 5x - 8 \][/tex]
Therefore, the correct answer is:
[tex]\[ f(x) = 2x^2 - 5x - 8 \][/tex]
Complete question: If f(x)=2x²+3x−4, and g(x)=−8x−4, what does f(x)+g(x) equal?
a-f(x)=2x²+5x+8
b-f(x)=2x²−5x−8
c-f(x)=2x²+11x−8
d-f(x)=2x²+5x
Please answer this correctly
Answer:
Step-by-step explanation:
the answer is 4/5
Because there are 5 section and the blueberry takes up 4 of the sections it is 4/5
Answer:
4/5
Step-by-step explanation:
So he divided something into 5 sections.
He fills one section with graph jelly and 4 sections with blueberry jelly.
Since there are 5 sections and 4 are filled with blueberry, then 4/5 is the fraction of the table he filled will blueberry.
which equation have no real solution?
a.x^2+4x+16=0
b.4x^2+4x-24=0
c.5x^2+3x-1=0
d.2x^2-4x+4=0
To find out which equation has no real solutions, we need to calculate the discriminant for each of these given equations.
For calculating the discriminant, we need to first compare these equations with the general formula which is ax²+bx+c.
So, let's get started.
1) x² + 4x + 16 = 0
a=1, b=4, c=16
D = b²-4ac
= (4)² - 4(1)(16)
= 16-64
= -48
√D = √-48
2) 4x² + 4x - 24 = 0
a=4, b=4, c=-24
D = b²-4ac
= (4)² - 4(4)(-24)
= 16 - 16(-24)
= 16 + 384
= 400
√D = √400 = +20 or -20
3) 5x² + 3x - 1 = 0
a=5, b=3, c=-1
D = b²-4ac
= (3)² - 4(5)(-1)
= 9 + 20
= 29
√D = √29
4) 2x² - 4x + 4 = 0
a=2, b=-4, c=4
D = b²-4ac
= (-4)² - 4(2)(4)
= 16 - 32
= -16
√D = √-16
Now from all these above calculations, we can see that discriminant was negative in first equation and in last equation.
If D<0 then roots does not exist, as the square root can not contain a negative value or the equation does not have any real solutions.
Roots in such case can be calculated but those roots are known as imaginary roots, which is a higher concept.
So Final answer is,
Equation 1 => x² + 4x + 16 = 0
and
Equation 4 => 2x² - 4x + 4 = 0
has no real solutions.
What is the value of e rounded to 4 decimal places
e = Euler's constant
e ≈ 2.718281828459045, rounded up e = 2.7183.
= 4.17356
How do you round numbers to 4 decimal places?the number after the line is lower than 5, round the number down (keep it the same). If the number is 5 and more than it round the number upwards. therefore in example 1 you need to round 4.17356 to 4 decimal places. This means you have 2 choices, either 4.17356 or 4.17357.
When we say round to 4 it means to fewer the digits to 4 to the right of the decimal point. The basic rule of remember is, if the number in the 5th place ( to round it any decimal place, consider this next digit) is > 5 then add 1 on the 4th digit and else remains the same.
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Please please answer this correctly
Answer:
it should be 1/2
Step-by-step explanation:
because the sequence is going down by 0.05 each time;
7/10= 0.70
13/20= 0.65
3/5= 0.6
11/20= 0.55
so to continue the pattern,
1/2= 0.5
I’ve tried it many times but I can’t seem to get it can someone please help please please help I really do need help
A) -4
B) -1/4
C)4
D)1/4
Answer:
-1/4
Step-by-step explanation:
You can find the slope from a graph several ways.
Here are two ways of doing it.
Method 1. Slope formula
Find two points, then apply the slope formula, m = (y2 - y1)/(x2 - x1)
We read two easy to read points of the graph: (0, -2) and (4, -3)
m = (y2 - y1)(/(x2 - x1) = [-3 - (-2)]/(4 - 0) = (-3 + 2)/4 = -1/4
Method 2. Rise/Run
Slope = m = rise/run
Pick two points. Start at one point and go to the other point by going vertically (rise) and horizontally). The vertical distance is the rise, and the horizontal distance is the run. Up is positive, and down is negative. Right is positive, and left is negative.
Pick points (0, -2) and (4, -3).
Start at (0, -2). To go to (4, -3), move 1 unit down. That is a rise of -1. Now go horizontally 4 inits to the right. That is a run of 4.
slope = rise/run = -1/4
Which ratio is equivalent to 8:6
Answer:
4:3
Step-by-step explanation:
You divide 8 and 6 by 2 to simplify it
Make a table with the domain of {2,3,4,5,6} and draw a graph of the absolute value function y = 2|x-4| + 3.
Answer:
Table for y = 2|x-4| + 3 on domain {2,3,4,5,6} is given as:
x y
2 2|x-4| + 3 = 2|2-4| + 3 = 7
3 2|x-4| + 3 = 2|3-4| + 3 = 5
4 2|x-4| + 3 = 2|4-4| + 3 = 3
5 2|x-4| + 3 = 2|5-4| + 3 = 5
6 2|x-4| + 3 = 2|6-4| + 3 = 7
The graph of the absolute value function y = 2|x-4| + 3 for the given domain is attached.
Step-by-step explanation:
The absolute value parent function, written as function(x) = | x |, is defined as:
|x| = x and |-x| = x
In our case;
For x = 2
y = 2|x-4| + 3
= 2|2-4| + 3
= 2|-2| + 3
= 2*2 + 3
= 4 + 3
= 7
Similarly, for all other values of x in the given domain, value of y can be calculated.
Answer:
In the attachment.Step-by-step explanation:
[tex]|a|=\left\{\begin{array}{ccc}a&for\ a\geq0\\-a&for\ a<0\end{array}\right[/tex]
Put each value of x from the set {2, 3, 4, 5, 6}
to the equation y = 2|x - 4| + 3:
x = 2 → y = 2|2 - 4| + 3 = 2|-2| + 3 = 2(2) + 3 = 4 + 3 = 7 → (2, 7)
x = 3 → y = 2|3 - 4| + 3 = 2|-1| + 3 = 2(1) + 3 = 2 + 3 = 5 → (3, 5)
x = 4 → y = 2|4 - 4| + 3 = 2|0| + 3 = 2(0) + 3 = 0 + 3 = 3 → (4, 3)
x = 5 → y = 2|5 - 4| + 3 = 2|1| + 3 = 2(1) + 3 = 2 + 3 = 5 → (5, 5)
x = 6 → y = 2|6 - 4| + 3 = 2|2| + 3 = 2(2) + 3 = 4 + 3 = 7 → (6, 7)
Mark the points in the coordinates system.
The domain is only five numbers, therefore the graph of this function is only five points.
HELP ME! Z-135=41,show your work
Answer:
[tex]\huge \boxed{z=176}\checkmark[/tex]
Step-by-step explanation:
Add by 135 from both sides of equation.
[tex]\displaystyle z-135+135=41+135[/tex]
Simplify, to find the answer.
[tex]\displaystyle41+135=176[/tex]
[tex]\huge \boxed{z=176}[/tex], which is our answer.
Hope this helps!
Answer: Z=176
Step-by-step explanation: All you need to do is isolate z. Add 135 to each side.
135+41=176=Z
The main cable of a suspension bridge forms a
parabola, described by the equation
y = a(x - h)2 + k.
0
27
52.5 105
127
157.6
12
210
27
y = height in feet of the cable above the roadway
x = horizontal distance in feet from the left bridge
support
a = a constant
(h, k) = vertex of the parbola
What is the vertex of the parbola?
DONE
Answer:
The vertex of the parabola is (105 , 7)
Step-by-step explanation:
* Lets explain how to solve the problem
- The equation of the parabola is y = a(x - h)² + k, where (h , k) are
the coordinates of the vertex point of the parabola
- The points (0 , 27) , (52.5 , 12) , (105 , 7) , (157.6 , 12) , (210 , 27) are
the points lie on the parabola
- We have three unknown a , h , k to find them we will substitute the x
and y in the equation by the coordinates of some point on the
parabola
- Lets start with point (0 , 27)
∵ x = 0 and y = 27
∴ 27 = a(0 - h)² + k
∴ 27 = ah² + k ⇒ (1)
- Lets use point (210 , 27)
∵ x = 210 and y = 27
∴ 27 = a(210 - h)² + k ⇒ (2)
- Equations (1) and (2) have the same L.H.S, so we can equate them
∴ ah² + k = a(210 - h)² + k ⇒ subtract k from both sides
∴ ah² = a(210 - h)² ⇒ divide both sides by a
∴ h² = (210 - h)² ⇒ take √ for both sides
∴ h = ± (210 - h)
∵ h = 210 - h ⇒ add h to both sides
∴ 2h = 210 ⇒ divide both sides by 2
∴ h = 105
∵ h = - (210 - h)
∴ h = -210 + h ⇒ no value of h from this equation so we will ignore it
∴ The value of h is 105
- Lets substitute this value of h in the equation
∴ y = a(x - 105)² + k
- Lets use the point (105 , 7)
∵ x = 105 and y = 7
∴ 7 = a(105 - 105)² + k
∴ 7 = a(0) + k
∴ k = 7
- The coordinates of the vertex point are (h , k)
∵ h = 105 and k = 7
∴ The vertex of the parabola is (105 , 7)
Answer:
105, 7 and then for the next one y= 0.0018(x – 105)2 + 7
Step-by-step explanation:
What is the equivalent expression 3m + (m + 5)
Answer:
[tex]\large\boxed{3m+(m+5)=4m+5}[/tex]
Step-by-step explanation:
[tex]3m+(m+5)=3m+m+5\qquad\text{combine like terms}\\\\=(3m+m)+5=4m+5[/tex]
what is
x+y+z=8
3x+y-z=4
4x-y+2z+6
[1, 4, 3]
Solve for the first variable in one of the equations, then substitute the result into the other equation.
**For more information on how to solve a system of equations in three variables, paste and copy this link:
https://youtu.be/zcC7wsn3b2g
Subscribe to my channel [USERNAME: MATHEMATICS WIZARD].
I am joyous to assist you anytime.
***By the way, in the final line, that "+" next to the 6 should be replaced with an "=".
If a Canada goose completes a $2400$-mile migration in exactly $13$ days and $8$ hours, then what was her average speed for the whole trip in miles per hour?
Enter your answer as a fraction or as a decimal, without units.
Answer:
Her average speed = 7.5 miles/hour
Explanation:
First, since the required speed unit is miles/hour, we need to make sure that all units given are in miles (for distance) and hour (for time)
We are given that:
Distance covered = 2400 miles
Times taken = 13 days and 8 hours
We know that 1 day has 24 hours
Therefore:
13 days = 13 x 24 = 312 hours
Time taken = 13 days and 8 hours = 312 + 8 = 320 hours
Now, average speed is calculated as the total distance divided by the total time
This means that:
[tex]Average Speed=\frac{Total Distance}{Total Time} = \frac{2400}{320}=7.5[/tex] miles/hour
Hope this helps :)
To find the average speed, convert the total migration time of 13 days and 8 hours to hours, which is 320 hours. Then divide the total distance, 2400 miles, by the total time to get an average speed of 7.5 miles per hour.
Explanation:To calculate the average speed of the Canada goose on its $2400$-mile migration completed in $13$ days and $8$ hours, we must first convert the total time into hours. There are $24$ hours in a day, so $13$ days is equal to $13 \times 24 = 312$ hours. Adding the additional $8$ hours, we have a total travel time of $320$ hours. The average speed is then calculated by dividing the total distance by the total time.
The average speed of the goose is:
Divide the total distance of $2400$ miles by the total time of $320$ hours.Calculate $2400 \div 320$ to find the average speed in miles per hour.The average speed is $\frac{2400}{320} = 7.5$ miles per hour.
There are 20 squid and 36 eels in a fish tank. What is the ratio of squids to eels? What is the rate of squids to eels? What about the simplified ratio and unit rate?
Answer:
Ratio: 20:36
Rate: 20 squids per 36 eels
Simplified ratio:
[tex] = \frac{20}{36 } = \frac{10}{18} = \frac{5}{9} [/tex]
Unit ratio:
20/36 squids per eel (dividing by 36)
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Answer:
Step-by-step explanation:
Number of squid in the tank = [tex]20[/tex]
Number of eels in the tank = [tex]36[/tex]
Rate of squids to eels will be obtained by creating a fraction of number of squids over number of eels
Rate of squid to eels = [tex]\frac{20}{36}[/tex]
also ratio of squid to eels will be written as [tex]20:36[/tex]
Simplified ratio = [tex]\frac{20}{36} = \frac{5}{9} = 5:9[/tex]
Unit rate will be defined as number of squid per eels
Unit rate = [tex]\frac{20}{36} = 0.55[/tex]
1. From a total yearly budget of
$360,000, the Kimball Foundation
spends $30,000 on leasing office
space. What is the ratio of dollars
spent on office space to dollars spent
on other costs?
A. 12:1
B. 11:1
C. 1:11
D. 1:12
Answer:
Option C. 1:11
Step-by-step explanation:
Let
x-----> dollars spent on office space
y ----> dollars spent on other costs
we know that
x+y=$360,000 -----> equation A
x=$30,000 ----> equation B
substitute equation B in equation A and solve for y
30,000+y=360,000
y=360,000-30,000=$330,000
Find the ratio of dollars spent on office space to dollars spent on other costs
Divide the dollars spent on office space by the dollars spent on other costs
so
x/y
substitute
30,000/330,000=1/11
What is the number pie
You meant pi, pi is a irrational number, but they use 3.14 for approximation, so that is your answer.
Hope this helped!
Nate
[tex]\pi-\bold{pi}\\\\\pi\ \text{it's the ratio of a circle's circumference to its diameter}\\\\\pi=\dfrac{\text{circumference of a circle}}{\text{circle diameter}}\\\\\pi\ \text{it's irrarional number}\\\\\pi=3.14159265358979323846264338327...\\\\\text{Approximation of}\ \pi:\\\\\pi\approx3.14\\\\\pi\approx\dfrac{22}{7}\\\\\pi\approx\dfrac{355}{113}[/tex]
The number pi occurs when calculating the surface area or volume of the rotational solids.
Cylinder:
[tex]S.A.=2\pi r^2+2\pi rH\\\\V=\pi r^2H[/tex]
Cone:
[tex]S.A.=\pi r^2+\pi rl\\\\V=\dfrac{1}{3}\pi r^2H[/tex]
Sphere:
[tex]S.A.=4\pi R^2\\\\V=\dfrac{4}{3}\pi R^3[/tex]
The number pi occurs when calculating the area and the circumference of a circle.
[tex]C=\pi d=2\pi r\\\\A=\pi r^2[/tex]
It is also used to convert angle measure in degrees to radians.
[tex]x^o=\dfrac{x\pi}{180}\ rad[/tex]
When sales representatives for a pharmaceutical company drive to out-of-town meetings that require an overnight stay, they receive $125for lodging plus $0.80 per mile driven. How many miles did Joe drive if his company reimbursed him $301 for an overnight trip?
Answer:
220 miles
Step-by-step explanation:
Joe got $301 for an overnight trip.
As the employees get $125 for lodging. The lodging expense will be subtracted from the total amount to get the amount for the miles he drove.
So,
Expense by company for miles driver = 301 - 125 = $176
So, Joe received $176 for miles driven
Now,
amount for one mile = $0.80
Miles driven in $176 = 176/0.80 = 220 miles
Joe drove 220 miles ..
Joe drove 220 miles for his company to be reimbursed $301 for an overnight trip, after considering the fixed lodging cost and the per mile reimbursement rate.
The student wishes to know how many miles Joe drove if his company reimbursed him $301 for an overnight trip wherein he receives $125 for lodging plus $0.80 per mile driven. To solve this problem, we start by subtracting the fixed lodging cost from the total reimbursement to find the total amount reimbursed for mileage. Let's denote the number of miles driven by Joe as m.
Total reimbursement for mileage = Total reimbursement - Lodging cost
$301 - $125 = $176
Now, since Joe gets reimbursed $0.80 per mile, we can calculate the number of miles driven as follows:
$176 / $0.80 per mile = 220 miles
Therefore, Joe drove 220 miles for his company to be reimbursed $301 for an overnight trip.
which of the following equations of a line perpendicular to the line y=-1/3x+1 , passing through the point (2,7)?
Answer:
y=3x+1 (slope-intercept form)
-3x+y=1 (standard form)
3x-y=-1 (another version of standard form)
y-7=3(x-2) (point-slope form)
Step-by-step explanation:
y=mx+b is slope intercept form where m is slope and b is y-intercept.
The slope of perpendicular lines are opposite reciprocals.
The opposite reciprocal of -1/3 is 3.
So we are looking for a line of the form y=3x+b going through (2,7)
y=3x+b with (x,y)=(2,7)
7=3(2)+b
7=6+b
7-6=b
1=b
b=1
So the equation is y=3x+1.
Now you can also put it in standard form:
Subtract 3x on both sides:
-3x+y=1
You can also multiply both sides by -1:
3x-y=-1
ax+by=c is standard form.
We can also use point slope form.
y-y1=m(x-x1) where (x1,y1) is a point contained by our line and m is the slope.
We have m=3 and (x1,y1)=(2,7)
y-7=3(x-2)
Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality.
_____<√32<_____
Answer:
5 < √32 < 6.
Step-by-step explanation:
√25 = 5 and √36 = 6 so
5 < √32 < 6.