Answers
Answer:
Angle HEF
105*
Step-by-step explanation:
Related Questions
Mixed Applications
Write an equation using the variable n. Then solve and check the solution.
42) If a number, n, divided by 8 equals 2.5, what is n?
43) The sum of a number, n, and 6.05 is 12.4. What is n?
44) Stacy is one-fourth as old as her mother. If Stacy's mother is
36, how old is Stacy?
45) One-third of a painting job takes 24 hours. How long will it take to finish the entire job?
Number Sense: Estimation
Use compatible numbers to estimate the solution.
46) 6b = 110
47) 4n = 159
48) 14/x = 5
Answers
The solution to the given question will be:-
A) If a number, n, divided by 8 equals 2.5, what is n: n = 20
B) The sum of a number, n, and 6.05 is 12.4. What is n: n = 6.35
C) Stacy is one-fourth as old as her mother. If Stacy's mother is
36, how old is Stacy: 9 years
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division
A) If a number, n, divided by 8 equals 2.5, what is n?
n / 8 = 2.5
n = 8 x 2.5 = 20
B) The sum of a number, n, and 6.05 is 12.4. What is n?
n + 6.05 = 12.4
n = 12.4 - 6.05 = 6.35
C) Stacy is one-fourth as old as her mother. If Stacy's mother is
36, how old is Stacy?
(1 / 4) M[tex]_{age}[/tex] = S[tex]_{age}[/tex]
S[tex]_{age}[/tex] = ( 36 / 4)
S[tex]_{age}[/tex] = 9 years
Therfore the answers are n = 20 ,n = 6.35, S[tex]_{age}[/tex] = 9 years
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I rlly thought I understood this but I really don't PLEASE help. You are planning a pizza party for your class. There are 42 students in the class. If a medium pizza has 8 slices, a large pizza has 10 slices and an extra large pizza has 12 slices. What fraction of the class will each pizza serve. Show Working.
Answers
Hope this helps!
There are two unit rates for every rate, true or false?
Answers
Answer:
True
Step-by-step explanation:
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
it should be true. Let me know if I'm incorrect.
2.
You draw five cards from a standard deck of 52 cards. P(heart) =
5
of probability is illustrated and why?
(1 point)
What type
Answers
Step-by-step explanation:
Prob. of at least one heart when drawing 5 cards from a full deck
= 1 - prob(no hearts at all)
= 1 - C(39,5) / C(52,5)
= .7785
3x - 5y = 4
5x + y = 16
determine the y-coordinate of the solution of the system
Answers
Answer:
y= 1
3(3) - 5(1) = 4
9 - 5 = 4
5(3) + 1 = 16
15 + 1 = 16
Answer:
please see photo belowabove for detailed explanation
Step-by-step explanation:
________________________________________________
Answers
Answer:
( 50, 30 )
Step-by-step explanation:
Equal distance
Use for questions 21-24: Out of 50 students, 24 are taking art and 30 are taking music. Sixteen of the
students are taking both art and music. If two different students from this group are chosen at
random, find each probability.
21. Both students take art
22. Both students take both art and music.
23. Both students take music, but not art.
24. Neither students takes music.
Answers
Probability of each case given in the problem will be 0.3327, 0.1033, 0.0922, 0.3367 respectively.
What does probabilty of occurance of an event signifies?The probability of an occurrence is an indicator of its likelihood. It is most frequently described as a number between 0 and 1, where 0 indicates an impossibility and 1 indicates assurance.
If an event has a higher probability, it is more likely to happen. One can use various mathematical methods or, depending on the situation, divide the number of favourable possibilities by the total number of potential outcomes to calculate the likelihood of an event.
Now for given cases in the problem,
21. Chances that both pupils will enrol in art: divided by the total number of ways there are to select two students from the full group of 50 students, the number of ways to select two students from the 24 art students is equal to= [tex]^{24}C_2 / ^{50}C_2=(\frac{24!}{22!.2!})/(\frac{50!}{48!.2!} )= \frac{24*23}{2} /\frac{50*49}{2} =0.3327[/tex]
22. Chance that both pupils would study music and art: the number of options there are to select two students from the 16 students who are studying both art and music divided by the total number of methods there are to select two students from the 50 students.= [tex]^{16}C_2 / ^{50}C_2=(\frac{16!}{14!.2!})/(\frac{50!}{48!.2!} )=\frac{16*15}{2} /\frac{50*49}{2} =0.1033[/tex]
23. Probability that both students take music but not art is calculated by dividing the total number of possibilities there are to select two students from the 50 students by the number of students in the group of 14 who only take music= [tex]^{14}C_2 / ^{50}C_2=(\frac{14!}{12!.2!})/(\frac{50!}{48!.2!} )= \frac{14*13}{2} /\frac{50*49}{2} =0.0922[/tex]
24. The likelihood that neither student studies music is determined by the number of ways there are to select two students from the 26 students who do not study music divided by the total number of ways there are to select two students from the complete group of 50 students. = [tex]^{26}C_2 / ^{50}C_2= (\frac{26!}{24!.2!})/(\frac{50!}{48!.2!})=\frac{26*25}{2} /\frac{50*49}{2} = 0.3367[/tex]
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Examine the following sequence 1, 4, 9, 16, 25.... Why is 36 the next number in the sequence? Because the pattern is
a. Add the next even number
C. Cube the number of the term, n
b. Square the number of the term, n
d.
Add 2 + the number of the term, n
Please select the best answer from the choices provided
A
B
0000
C
D
Save and Exit
Next
Subaut
Mark this and retum
Answers
Answer:
B. Square the number of the term, n
Step-by-step explanation:
1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
etc.
Item 5
What is the correct classification for ∠JML?
obtuse
straight
right
acute
Ray M J and Ray M L are connected at point P, forming angle J M L. A ray M K sharing the same point forms a bisector. A ray M H also sharing the same point from the diagonally down from the right. The angle J M K measure 41 degrees and angle L M H measure 132 degrees.
Answers
∠JML is a right angle. The correct option is your third option- right
Determine the types of anglesThere are different types of angles which include
Acute: An acute angle is less than 90°Obtuse: An obtuse an angle is greater than 90° but less than 180° Straight: A straight angle equals 180° Right: A right angle equals 90°In the given diagram, we can observe that ∠JML equals 90°
Hence, ∠JML is a right angle. The correct option is your third option- right
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whats 9 to the 15th power
Answers
[tex]9^{15} = 3^{30} = 205891132094649[/tex]
Find the two square roots of 121.
Answers
Answer:
11 and -11
Step-by-step explanation:
This problem can really only be solved either by way of a calculator or simple memorization. In this case, the product (121) is a perfect square root, meaning it has a whole number answer. One square root of 121 is 11. The second square root of 121 is -11.
[tex]\sqrt{121} = 11[/tex]
[tex]\sqrt{121} = -11[/tex]
You can check your work by squaring your answer and seeing whether it equals the product. Remember, a negative number times another negative number results in a positive answer.
[tex]11^{2} = 121[/tex]
[tex]-11^{2} = 121[/tex]
The two square roots of the number 121 are 11 and -11.
The square root of a number is a value that, when multiplied by itself, gives the original number.
In the case of 121, the square root represents the number that, when multiplied by itself, equals 121.
The two square roots of 121 are 11 and -11 because both 11 and -11, when squared, result in 121.
When we calculate 11 × 11, we get 121.
So, 11 is one of the square roots of 121.
Similarly, when we calculate (-11) × (-11), we also get 121. So, -11 is also a square root of 121.
Therefore, the two square roots of 121 are 11 and -11.
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The height of an object launched into the air can be modeled by the graph shown.
Enter your answer as a number, like this: 42
Answers
The maximum height reached by the object is 12.5 feet.
Describe Parabola?The vertex of a parabola is the point where the curve changes direction, and is located at the minimum or maximum point of the quadratic equation. If the coefficient of the x² term is positive, the parabola opens upwards and the vertex represents a minimum value. If the coefficient is negative, the parabola opens downwards and the vertex represents a maximum value.
To find the maximum height reached by the object, we need to find the vertex of the parabola.
The x-coordinate of the vertex can be found using the formula x = -b/2a, where a is the coefficient of the x² term, and b is the coefficient of the x term in the quadratic equation that represents the parabola.
In this case, the equation is of the form y = ax² + bx + c, where y is the height and x is the time. Using the given coordinates, we can set up a system of equations to solve for a, b, and c:
0 = a(1)² + b(1) + c
16 = a(5)² + b(5) + c
0 = a(9)² + b(9) + c
Simplifying each equation, we get:
a + b + c = 0
25a + 5b + c = 16
81a + 9b + c = 0
Solving for c in the first equation, we get c = -a - b. Substituting this into the other two equations, we get:
25a + 5b - a - b = 16
81a + 9b - a - b = 0
Simplifying these equations, we get:
24a + 4b = 16
80a + 8b = 0
Solving for b in the second equation, we get b = -10a. Substituting this into the first equation, we get:
24a + 4(-10a) = 16
4a = 2
a = 1/2
Substituting this value of a into the equation b = -10a, we get b = -5. Finally, substituting a, b, and c = -a - b into the equation for the x-coordinate of the vertex, we get:
x = -b/2a = 5
So the maximum height is achieved at time x = 5, which corresponds to a height of:
y = ax² + bx + c = (1/2)(5)² - 5(5) = -12.5
However, we are looking for the maximum height, so we take the absolute value of this result, which gives:
|y| = 12.5
Therefore, the maximum height reached by the object is 12.5 feet.
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Determine the identity and show all steps: 1-sen^2x/1+senx=-1/cscx
Answers
The solution to the trigonometry identity is -sin^2(x) + sin(x) + 1 = -sin(x)
What is sine and the cosecant trigonometry function?In trigonometry functions, the cosecant(csc) appears to be the reciprocal of the sine function.
The trigonometry formula for sine is = opposite/hypotenuse,Thus the cosecant(csc) will be hypotenuse/opposite.Given that:
[tex]\mathbf{1- \dfrac{sin^2(x)}{1}+sin(x)=\dfrac{-1}{csc(x)}}[/tex]
[tex]\mathbf{- \dfrac{sin^2(x)}{1}+sin(x)=\dfrac{-1}{csc(x)}}[/tex]
[tex]\mathbf{- \dfrac{sin^2(x)}{2}+sin(x)+ \dfrac{cos^2x}{2}+\dfrac{1}{2}=-sin(x)}[/tex]
[tex]\mathbf{- sin^2(x)+sin(x)+1 = -sin (x)}[/tex]
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jason needs an 75% average in his writing class to pass. on his first 4 exams, he earned scores of 68%,72%,85% and 90% what is the minimum score Jason can earn on his fifth and final test to pass??
Answers
Answer:
71%
Step-by-step explanation:
Here´s how I do average scores
68 to 90
the difference in the numbers is =
90 - 68 (just a tip, subtract the highest number from the lowest number) =
22/2 will give you 11 and the reason I do this is to compare all the other numbers
11 + 68 or 90 - 11 =
79
72 to 85
85 - 72
13/2 = 6.5
72 + 6.5 or 85 - 6.5
78.5
since grades are rounded to the nearest tenth
79 - 79
79%
so he needs a 75% average to pass
79 - 75 = 4
75 - 4 = 71
The minimum score is 71%
What is the area of the arrow?
Answers
Answer:
C. 192 1/2 in^2.
Step-by-step explanation:
Split this up anto 1 triangle and one rectangle
Area of the triangle = 1/2 * base * height
Its height = 36 - 25 = 11, and the base = 2 1/4 + 2 1/4 + 5 1/2= 10.
So it's area = 1/2 * 10 * 11 = 55.
Area of rectangle = 25 * 5 1/2 = 137 1/2.
Total area of the arrow = 55 + 137 1/2 = 192 1/2 in^2.
6. A house painter mixed 2 gal of white paint for every 8 gal of red paint to make pink paint. Which ratio of white paint to red paint will make the same shade of pink?
a) 8 to 20
b) 12 to 45
c) 6 to 24
d) 2 to 40
Answers
Answer:
c
Step-by-step explanation:
the ratio is 2/8.
2/8 = 1/4.
a)
8/20 = 2/5 is NOT equal to 1/4.
b)
12/45 = 4/15 is NOT equal to 1/4
c)
6/24 = 1/4 perfect
d)
2/40 = 1/20 is NOT equal to 1/4
this was my question people! sorry but please help!!!
Answers
Answer:
D. 39
Step-by-step explanation:
1. Anytime you see x, replace it with 3: [tex]3^3+3^2+3[/tex]
2. You can plug this into a calculator or do it manually. [tex]3^3=27, 3^2=9\\[/tex]
3. Now add it all together: 27+9+3=39.
4. D is the answer
Answer:
d) 39
Step-by-step explanation:
Given that,
→ x = 3
Let's solve the problem,
→ x³ + x² + x
→ (3)³ + (3)² + 3
→ 27 + 9 + 3
→ 39 {option d}
Hence, the solution is 39.
Help pls i cant get bad grades!!!!!!!!!
Answers
Answer:
bread
Step-by-step explanation:
If you get bad grades study :v
Zoe supplies costumes to a number of theatre companies. She recently provided 20 different hats, including 4 fedoras. Considering this data, how many of the next 15 hats requested from Zoe’s inventory will be fedoras?
Answers
Answer:
3.
Step-by-step explanation:
If there were 20 hats, and 4 of them were fedoras, we can conclude that 1/5 of the sent hats are going to be fedoras.
If there are 15 hats, we multiply 15 by 1/5 to get 3.
Hope this helps!
Verify and name the property used
-117 × 251 + (-117) × 249
Answers
Answer:
- 177 × 251 + ( -117) × 249 = 1294291791Step-by-step explanation:
HOPE ITS HELP15 km is esitamated to how many mi?
Answers
Answer:
9 miles
Divide by 1.6
please asap correct answer gets brainliest
Answers
Answer:
54 square units
Step-by-step explanation:
When Debbie finished page 78, she was ; of the way through her book. (a) How many pages are in her book? (b) How many pages does she have left to read?
Answers
Answer: Book has 130 Pages, pages left 52
Step-by-step explanation:
If 3/5 = 78 pages
5/5 = 78/3 ×5/1 = 390/ 3 = 130 pages
Pages left is 130- 78 = 52 Pages
What features would need to be included on a scatter plot so that the data can be easily analyzed?
Answers
The following are the features of a scatter plot:
1. An X axis also known as the horizontal axis), and a Y axis which is also known as the vertical axis.The reason for these two axes is to obtain the Cartesian coordinates of the two variables X and Y.
2. Dots: There are must be dots on a scatter graph. The purpose of each of the dots is to indicate one observation of the data set.
3. Unique position of each dot: The purpose of the position of each dot is to indicate the meeting point of X and Y values.
please I need help. YOU BE THE TEACHER Your friend finds the difference. 7-(-12) = 7+ 12 = 19 Is your friend correct? yes or no Explain your reasoning
Answers
Answer:
Yes.
Step-by-step explanation:
Yes it is correct.
When any bracket is opened by "-" sign then the sign inside the bracket changes.
Here,
→7-(-12)
→7+12
→19
In the above question the bracket is opened by "-' and the sign of 12 is also negative. So, -×- changes into +.
The magnitude, m, of an earthquake is defined to be m = log startfraction i over s endfraction, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a "standard" earthquake, which is barely detectable. what is the magnitude of an earthquake that is 35 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.
Answers
The magnitude of an earthquake that is 35 times more intense than a standard earthquake is 1.5
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
The magnitude, m, of an earthquake is:
m = log (I/S)
Where I is the intensity of the earthquake and S is the intensity of a "standard" earthquake. Hence, for an earthquake that is 35 times more intense than a standard earthquake:
m = log (35S / S) = log (35) = 1.5
The magnitude of an earthquake that is 35 times more intense than a standard earthquake is 1.5
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What is the equation of this line in standard form?
Answers
Based on the calculations, the equation of this line in standard form is equal to 6x - 11y = 13.
Given the following data:
Points on x-axis = (1 1/2, -4) = (1.5, -4).Points on y-axis = (2, -1).How to calculate an equation of a line?Mathematically, the equation of a line in standard form is given by this formula:
y - y₁ = m(x - x₁)
Where:
m is the slope.y is the point on the horizontal axis.x is the point on the vertical axis.Next, we would determine the slope of this line:
[tex]Slope = \frac{Change\;in\;y\;axis}{Change\;in\;x\;axis}\\\\Slope = \frac{y_2\;-\;y_1}{x_2\;-\;x_1}\\\\Slope = \frac{-1\;-\;2}{-4\;-\;1.5}\\\\Slope = \frac{-3}{-5.5}[/tex]
Slope = 6/11.
For the equation of this line, we have:
y - 2) = 6/11(x - 3/2)
y - 2 = 6x/11 - 9/11
11y - 22 = 6x - 9
6x - 11y = -9 + 22
6x - 11y = 13.
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Complete Question:
What is the equation of this line in standard form (1 1/2, 2) (-4, -1)?
Question 36 Choose the expression that is the largest value. cos 30° O tan 30° sin 45 tan 45°
Answers
Answer:
Step-by-step explanation:
Remark
The moment you put Tan(45) in the choices, non of the other choices can compete.
Tan(45) = 1
Sin(a) or cos(a) are all less then one except when a = 0 or 90. Even then they can only have a value of 1. Since none of the angles = 0 or 90 then the largest value is Tan(45) = 1.
Bill gets a raise of 10% in his salary find the original salary if his salary after the raise is 4510
Answers
Hiro ran 5 1/8 miles each day for a week how far did he run in all?
Answers
Answer: 35 7/8 miles
Step-by-step explanation:
5*7 + 1/8*7 = 35 7/8 miles