Answer:
30% of 70 = 21
Step-by-step explanation:
21/70 = .3
.3=30%
What formula do I use for this? How do I get the points to graph?
The graph of the function y = 5|x - 4| is added as an attachment
Sketching the graph of the functionFrom the question, we have the following parameters that can be used in our computation:
y = 5|x - 4|
The above function is an absolute value function that has been transformed as follows
Vertically stretched by a factor of 5Shifted right by 4 unitsNext, we plot the graph using a graphing tool by taking not of the above transformations rules
The graph of the function is added as an attachment
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Question 16 of 50
The point (1, -4) is a solution of the system:
x + 2y = -7
-4y = -x
True
False
Answer:
False
Step-by-step explanation:
1 + 2 (-4) = -7
1 - 8 = -7
-7 = -7
-4 (-4) = -1
16 = -1
What is the sum of the polynomials? (6x+7x+x^2)+(2x^2-3)
Answer
Hi. I just sent you the answer.
helppppppppppppppppppppppppppp
Answer:
hn−h−10
Step-by-step explanation:
h(n)=h(n−1)−10
Use the distributive property to multiply h by n−1.
hn−h−10
Nolan drew a pre-image of a trapezoid using a dashed line. Which shows an isometric transformation of his pre-
image??
Answer:
C
Step-by-step explanation:
i just guessed but it was correct
NO LINKS!!! URGENT HELP PLEASE!!!
Solve ΔABC using the Law of Sines
1. A = 29°, C = 63°, c = 24
2. A = 72°, B= 35°, c = 21
Answer:
1) B = 88°, a = 13.1, b = 26.9
2) C = 73°, a = 20.9, b = 12.6
Step-by-step explanation:
To solve for the remaining sides and angles of the triangle, given two sides and an adjacent angle, use the Law of Sines formula:
\(\boxed{\begin{minipage}{7.6 cm}\underline{Law of Sines} \\\\$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$\\\\\\where:\\ \phantom{ww}$\bullet$ $A, B$ and $C$ are the angles. \\ \phantom{ww}$\bullet$ $a, b$ and $c$ are the sides opposite the angles.\\\end{minipage}}\)
Question 1Given values:
A = 29°C = 63°c = 24As the interior angles of a triangle sum to 180°:
\(\implies A+B+C=180^{\circ}\)
\(\implies B=180^{\circ}-A-C\)
\(\implies B=180^{\circ}-29^{\circ}-63^{\circ}\)
\(\implies B=88^{\circ}\)
Substitute the values of A, B, C and c into the Law of Sines formula and solve for sides a and b:
\(\implies \dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}\)
\(\implies \dfrac{a}{\sin 29^{\circ}}=\dfrac{b}{\sin 88^{\circ}}=\dfrac{24}{\sin 63^{\circ}}\)
Solve for a:
\(\implies \dfrac{a}{\sin 29^{\circ}}=\dfrac{24}{\sin 63^{\circ}}\)
\(\implies a=\dfrac{24\sin 29^{\circ}}{\sin 63^{\circ}}\)
\(\implies a=13.0876493...\)
\(\implies a=13.1\)
Solve for b:
\(\implies \dfrac{b}{\sin 88^{\circ}}=\dfrac{24}{\sin 63^{\circ}}\)
\(\implies b=\dfrac{24\sin 88^{\circ}}{\sin 63^{\circ}}\)
\(\implies b=26.9194211...\)
\(\implies b=26.9\)
\(\hrulefill\)
Question 2Given values:
A = 72°B = 35°c = 21As the interior angles of a triangle sum to 180°:
\(\implies A+B+C=180^{\circ}\)
\(\implies C=180^{\circ}-A-B\)
\(\implies C=180^{\circ}-72^{\circ}-35^{\circ}\)
\(\implies C=73^{\circ}\)
Substitute the values of A, B, C and c into the Law of Sines formula and solve for sides a and b:
\(\implies \dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}\)
\(\implies \dfrac{a}{\sin 72^{\circ}}=\dfrac{b}{\sin 35^{\circ}}=\dfrac{21}{\sin 73^{\circ}}\)
Solve for a:
\(\implies \dfrac{a}{\sin 72^{\circ}}=\dfrac{21}{\sin 73^{\circ}}\)
\(\implies a=\dfrac{21\sin 72^{\circ}}{\sin 73^{\circ}}\)
\(\implies a=20.8847511...\)
\(\implies a=20.9\)
Solve for b:
\(\implies \dfrac{b}{\sin 35^{\circ}}=\dfrac{21}{\sin 73^{\circ}}\)
\(\implies b=\dfrac{21\sin 35^{\circ}}{\sin 73^{\circ}}\)
\(\implies b=12.5954671...\)
\(\implies b=12.6\)
Write the angles of DEF in order from smallest to largest
Answer:
F, D, E
Step-by-step explanation:
the smallest angle is opposite the smallest side, the largest angle is opposite the largest side, etc.
On the past two quizzes, a student scored a 75 and 83. Write and solve a compound inequality to find the possible values for the 3rd quiz score that would give her an average between 85 and 90, inclusive.
The possible values for a third quiz score that would give her an average between 85 and 90, inclusive is: 97 ≤ x ≤ 112.
How to determine the average?In Mathematics, the average of these quiz scores can be calculated by using the following formula:
Average = Sum of quiz score/Number of quiz scores
Note: Let the variable q represent the student's score on the third (3rd) quiz.
Substituting the given parameters into the formula, we have the following;
Average = (75 + 83 + q)/3
Average = (158 + q)/3
This ultimately implies that, an average between 85 and 90, inclusive is given by this compound inequality:
85 ≤ (158 + q)/3 ≤ 90
Multiplying all through by 3, we have the following:
255 ≤ (158 + q) ≤ 270
Subtracting 158 from both sides of the inequality, we have the following:
97 ≤ x ≤ 112
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What kind of expression is this? a^{0} (a≠0)
Answer: The angulier expression
Step-by-step explanation:
Which of the following tables represents a proportional relationship?
Answer: Choice D
Step-by-step explanation:
When we think of proportional relationships, we can think of ratios. The x and y value will be multiplied by the same ratio throughout the table to create equivalent points. The easiest way to do this is to turn the points into fractions and see if they all simplify to the first point, which in this case is 2/3.
4/6 / 2/2 = 2/3
6/9 / 3/3 = 2/3
8/12 / 4/4 = 2/3
2 is being added to the x value each time and 3 is being added to the y value each time. hope this helps!
Identify the number of solutions of the system of linear equations.
x=y+3z=6
x-2y = 5
2x - 2y + 5z = 9
no solution
exactly one solution
infinitely many solutions
Solve the system. If there are infinitely many solutions, write the ordered triple in terms of z. If there is no solution, lea
The solution is (x, y, z)
-1.2
3
The solution to the system of linear equations is (x, y, z) = (64/11, 37/11, 9/11). The system has exactly one solution.
Let's solve the system of linear equations correctly.
The given system of linear equations is:
x = y + 3z = 6
x - 2y = 5
2x - 2y + 5z = 9
To determine the number of solutions, we can analyze the system using the method of elimination or substitution. Let's use the method of elimination:
From equation 1, we have:
x = y + 3z
Substituting this value of x in equation 2:
(y + 3z) - 2y = 5
y + 3z - 2y = 5
-z + 3z = 5 - y
2z = 5 - y
Now, let's substitute the value of x in equation 3:
2(y + 3z) - 2y + 5z = 9
2y + 6z - 2y + 5z = 9
11z = 9
Simplifying the equation, we find:
z = 9/11
Now, substituting this value of z back into the equation 2z = 5 - y, we get:
2(9/11) = 5 - y
18/11 = 5 - y
18/11 - 5 = -y
18/11 - 55/11 = -y
-37/11 = -y
y = 37/11
Finally, we can substitute the values of y and z into equation 1 to find the value of x:
x = y + 3z
x = 37/11 + 3(9/11)
x = 37/11 + 27/11
x = 64/11
Therefore, the solution to the system of linear equations is (x, y, z) = (64/11, 37/11, 9/11).
The system has exactly one solution.
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Someone please help me
The value of 1 unit = 11/8
The value of 5 units = 11/8 × 5 = 55/8
The value of 5 units as a mixed fraction= 6 7/8
What is rate?A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69¢, the rate is 69¢ for 12 ounces. This is not a ratio of two like units, such as shirts. This is a ratio of two unlike units: cents and ounces.
If 8 units = 11
therefore 1 unit will be ;
8 units/8 = 11/8
1 units = 11/8
Therefore 5 units = 11/8 × 5 = 55/8
5 units in improper fraction is 55/8
= 6 7/8
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Will give brainlist PLEASE HELP ASAP!!!! If it says college math, that's false.
The graph below represents the money collected at the skating rink on Friday. Find the domain when the maximum number of people allowed in the skating rink is 75 people.
A=0 ≤ x ≤ 75
B= 20 ≤ y ≤ 320
C= 0 ≤ y ≤ 75
D= 20 ≤ x ≤ 320
Answer:
A is correct.
0 < x < 75 represents the correct domain.
I need help on this one please
Answer:
B
Step-by-step explanation:
Answer:
k' = (-3,0)
j' = (0,5)
l' = (-3,3)
Step-by-step explanation:
if you reflected over the x- axis
then the y points would would change to the opposite
k = (-3,0)
j = (0,-5)
l = (-3,-3)
Alright, I need help!
Answer:side B middle length!
Step-by-step explanation:
Write a real-world problem involving perimeter that goes with the number sentence 2 x 18+ 2 x 15 = 66.
The real-world problem involving perimeter is that the perimeter of a rectangle of length 18 units and width 15 units is 66 units
How to determine the real-world problem
From the question, we have the following parameters that can be used in our computation:
2 x 18 + 2 x 15 = 66
The perimeter of a rectangle can be calculated using
Perimeter = 2 x Length + 2 x Width
Using the above as a guide, we have the following:
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Write the fraction
5/7
as an equivalent fraction with the given denominator 28.
\( \frac{5}{7} = \frac{5 \times 4}{7 \times 4} = \frac{20}{28} \)
Answer: 20/28.
A hiker maintains an average speed of 3 3/4 km/hr . How many kilometers will the hiker walk in the given amount of time? 2/3 hr
Hiker travels \(\frac{5}{2} km\) in \(\frac{2}{3}hours\) with speed of \(3\frac{3}{4} km/hr\).
How is distance related to speed?Defining speed as the speed at which an object's location changes in any direction.
The distance traveled in the context of the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity.
The speed formula is provided as:
\(v=\frac{d}{t}\);
where d is distance travelled, t is time taken and v is speed or velocity.
Average speed determined by the ratio of the total distance traveled by an object to the entire amount of time it took to travel that distance.
Calculation:Given;
Average speed=\(3\frac{3}{4}=3+\frac{3}{4}=\frac{15}{4}\);
Average speed=\(\frac{d}{t}=\frac{15}{4}\);
Given total time \(\frac{2}{3}hours\);
⇒\(d=\frac{2}{3}*\frac{15}{4}=\frac{5}{2} km\);
Hiker travels \(\frac{5}{2} km\) in \(\frac{2}{3}hours\) with speed of \(3\frac{3}{4} km/hr\).
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what is 30/100 = ?/10
SOLUTION
In this question, we are meant to find the missing number in the equivalent fractions:
30/100 = X / 10
Cross- multiply, we have:
30 x 10 = 100 x X
300 = 100 X
Divide both sides by 100, we have :
X = 3
Highschool geometry please answer questions 8-10 in the attachment added
(q1) Find the length of the curve described by the function
The value of the Integral at the lower limit from the value of the integral at the upper limit to get the length of the curve.
The length of the curve described by the function f(x) = 1 + 3x^2 + 2x^3 is to be found. The formula used to find the length of a curve is:
L = ∫(sqrt(1 + [f'(x)]^2))dx where f'(x) is the derivative of f(x)We have to first find f'(x):f(x) = 1 + 3x^2 + 2x^3f'(x) = 6x + 6x^2
The integral becomes:L = ∫(sqrt(1 + [6x + 6x^2]^2))dx = ∫(sqrt(1 + 36x^2 + 72x^3 + 36x^4))dx The integral appears to be difficult to evaluate by hand.
Therefore, we use software like Mathematica or Wolfram Alpha to solve the problem. Integrating the expression using Wolfram Alpha gives:
L = 1/54(9sqrt(10)arcsinh(3xsqrt(2/5)) + 2sqrt(5)(2x^2 + 3x)sqrt(9x^2 + 4))The limits of integration are not given. Therefore, the definite integral be solved.
We can, however, find a general solution. We use the above formula and substitute the limits of integration.
Then, we subtract the value of the integral at the lower limit from the value of the integral at the upper limit to get the length of the curve.
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Nick earns a monthly base pay plus commission working as a car salesman. The expression 1,600 + 1,200x models the amount he
earns each month. Which THREE statements are correct?
es )
A)
1,200 represents Nick's base pay.
B)
1,600 represents Nick's base pay.
x represents the number of cars Nick sold.
D)
1,200 represents the commission for each car.
E)
1,600 represents the commission for each car.
yeah
Answer:
A, C, D
Step-by-step explanation:
P(x) = 1600+1200*x, clearly x represents the number of cars solved as it's a variable. 1600 is the base pay and 1200 is the commission he get on each variable/car
Answer:
B,C,D
Step-by-step explanation:
I got this on usatestprep.
If the first three Fibonacci nos. are x1=1, x2=1 and x3=2, what is the least value of n for which xn>60?
Answer:
11
Step-by-step explanation:
The first 12 terms of the sequence are ...
1 1 2 3 5 8 13 21 34 55 89 144
The first term that is greater than 60 is the 11th term, 89.
n = 11
Tracey paid $165 for an item that was originally priced at $570. What percent of the original price did Tracey pay? Round to the nearest tenth of a percent. percent
Answer:
28.9%Step-by-step explanation:
\(\frac{165}{570}\) = 0.2894
multiply by 100 to turn into percentage
A car going south 35 mi/hr speeds up when the speed limit changes. It takes 0.05 hours to accelerate at a rate of 200 mi/hr2. What is the car’s final velocity?
a)The value of acceleration will be 4.8 m/s²
b)The total distance travelled is 505 m.
a) As all the movement happens along a straight line, we need to define an axis only, which we call x-axis, being the positive direction the one followed by the car.
We can choose to place our origin at the location where the motorcycle was stopped at the side of the road (assuming that it is the same point for the car when it passes him), so our initial position is 0.
We can also choose our time origin to be the same as the instant that the motorcycle starts from rest, so t₀ = 0.
With these assumptions, and assuming also that the acceleration is constant, we can write two equations, one for the car (at constant speed) and the another one for the motorcycle, as follows:
xc = vx*t
xm= 1/2*a*t²
When the motorcycle passes the car, both distances traveled from the origin will be equal each other, i.e., xc = xm :
⇒ vx*t = 1/2*a*t²
We have as givens vx=35 m/s and t = 14.5 sec when both equations are equal each other.
⇒ 35 m/s* 14.5 s = 1/2*a*(14.5)²(s)²
Solving for a:
a = (2* 35 m/s) / 14.5 s = 4.8 m/s²
b) Replacing the value of a in the equation for xm, we have:
xm = 1/2*4.8 m/s²* (14.5)²s² = 505 m.
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Fluency in the conversion of the metric system to the Imperial System is an essential skill in the nursing profession. Think of a situation in which negative effects have occurred due to incorrect dosage calculations? This situation could be a personal experience, the experience of someone you know, or a hypothetical. Explain how this error could have been avoided. How will you ensure that you avoid dosage errors due to metric conversions in your future career as a nurse?
In a hypothetical situation, an incorrect dosage calculation due to an error in metric system to Imperial System conversion could lead to potential harm to the patient. To avoid such errors, it is crucial to ensure accurate and precise conversions between the metric and Imperial systems. As a nurse, I will double-check my calculations, use reliable conversion charts or tools, and consult with colleagues or supervisors when in doubt. Additionally, ongoing education and training on dosage calculations and metric system conversions will be important to maintain proficiency and prevent errors in the future.
~~~Harsha~~~
ab=c+a solve for a
Can someone please show me how to solve this with each step?
Step-by-step explanation:
ab=c+ac+a=aba=ab-cOr,
ab=c+aa=(c+a)/bOr,
ab=c+ac+a=abc=ab-ac=a(b-1)a=c/(b-1)Electric circuit consisting of 20 lights, 25% of the lights did not work. How many lights did not work?
Answer:
5 Lights
Step-by-step explanation:
L = .25 * 20 = 5 Lights.
Answer:
20 X 1/4 (25%)=5
5 lights didn't work
Step-by-step explanation:
Tickets for a reserved seat, r, for the basketball game cost $4 each and student tickets, s, cost $3 each. There were 1,787 people who attended the basketball game and a total of $5,792 was earned in ticket sales. Select the two equations that represent the situation.
A) r+s=5,792
B) r+s=1,787
C) 3r+4s=5,792
D) 4r+s=5,792
E) 4r+3s=5,792
The two equations which can be used to represent the situation are;
r + s = 1787
4r + 3s = 5,792
The correct answer choice is option B and E
Write two equations that represent the situation?Reserved seat for basketball game = r
Students seat for basketball game = s
Cost of reserved seat tickets = $4
Cost of students tickets = $3
Total number of people who attended the basketball game= 1,787 people
Total amount earned for tickets sales= $5,792
r + s = 1787
4r + 3s = 5,792
Therefore, the basketball game situation can be represented by the equation r + s = 1787; 4r + 3s = 5,792
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Let H (x) be the percent of U.S. households with internet use x years after 1980. Explain the meaning of H (23) = 55
ANSWER
EXPLANATION
H(x) represents the percent of US households with internet use x years after 1980.
What this function already tells us is that in this function, the percentage of US households with internet use is dependent on the number years after 1980.
Therefore, H(23) = 55 would mean that:
x = 23
Therefore, 23 years after 1980 (2003), 55% of US households use the internet.
In otherwords, 55% of US households have internet us