Answer:
slope = 1
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, - 5) and (x₂, y₂ ) = (- 3, - 6)
m = [tex]\frac{-6-(-5)}{-3-(-2)}[/tex] = [tex]\frac{-6+5}{-3+2}[/tex] = [tex]\frac{-1}{-1}[/tex] = 1
does the equation y=4.2x represent a proportional relationship
Answer:
A proportional relationship is one in which two quantities vary directly with each other.We say the variable varies directly .If y=k.x then as x increases y also increases.Here k is called the constant of proportionality.
The given equation y = 4.2x is of the form y=k.x where k= 4.2 as x increases y value will also increase. The relation is called a proportional relationship.
Step-by-step explanation:
state of the triangles in each pair are similar. If so State how you know they are similar and complete the similarity statement.
Answer: a) similar, AA similarity, ΔKQR
Step-by-step explanation:
Given: QR || ML therefore,
∠KLM ≡ ∠KQR by Alternate Interior Angles Theorem
∠KML ≡ ∠KRQ by Alternate Interior Angles Theorem
also, ∠RKQ ≡ ∠MKL by Vertical Angles Theorem
Since the angles are congruent then
ΔKLM ≅ ΔKQR by Angle-Angle Similarity Theorem
NEED HELP ASAP!!!
A six-sided number cube is rolled twice.
What is the probability that the first roll is an even number and the second roll is a number greater than 4?
One-sixth
One-third
Two-thirds
Five-sixths
Answer:
1/6
Step-by-step explanation:
an even number has a 1/2 chance of being rolled and a number greater than 4 has a 1/3 chance of getting rolled. multiply 1/2 and 1/3 together and you get 1/6 for your answer.
Round to the nearest hundredth : 3.2649
Answer:
3.26
Step-by-step explanation:
Rounding to the nearest hundredth means round to the nearest two decimal places.
To do this, all we need to look at is the 3rd decimal place.
Since 4 is not 5 or greater, that means we must round down, no matter how close it is to 5.
Therefore, the answer should just be 3.26
Answer:
3.26
Step-by-step explanation:
You round the second place after the decimal (6) by the place after it (4).
If the place after the number you need to round is a 5 or up, the decimal you round goes up one, if it is a 4 or lower it stays the same.
E.G. if 3.2649 was 3.2659 the hundreds would be rounded to 3.27. Since it's a 4, the six stays the same at 3.26.]
hope this helps (/o.o)/<3
please answer the question in the picture!
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v
Answer:
B is correct
Step-by-step explanation:
Hope I helped you and have an amazing day
Please help I only need part b and part c
Answer:
Here is the answer.
Step-by-step explanation:
b) students are the frequency. so we need to add all the frequency.
5 + 4 + 7 + 10 + 4=30 students
c) here we need to use the summation.
total/ frequency= mean
6*5=30
7*4=28
8*7=56
9*10=90
10*4=40
we need to add them all= 244
total frequency= 30
mean = 244/30= 8.133333333...≈ 8 (this is a rounded of value as in 0.13, 3 goes on repeating.
Find the value of x in the given figure using properties of parallel lines.
A) 138°
B) 48°
C) Can't be determined.
D) 42°
Answer:
[tex]x = 42[/tex]
Step-by-step explanation:
Given
The diagram above
Required
Find x
When two parallel lines are divided in such a way as it is in the above figure;
x and 138 are said to be supplementary angles
The rule about supplementary angles is that, they add up to 180
In other words,
[tex]x + 138 = 180[/tex]
To solve this, we subtract 138 from both sides
[tex]x + 138 - 138= 180 - 138[/tex]
[tex]x = 180 - 138[/tex]
[tex]x = 42[/tex]
Hence, the value of x when solved using the properties of parallel lines is: [tex]x = 42[/tex]
Write as a fraction in lowest terms:
Answer:
[tex]\frac{79}{100}[/tex]
Step-by-step explanation:
Question:
Write as a fraction in lowest terms:
Answer:
a = 79
b = 99
The ratio of men to women working for a company is 3 to 2 . if there are 39 women working for the company, what is the total number of employees?
NVM IDK please delete my answer sorry idk how
what is the circumference of the circle? Use 3.14 for Pi
Answer:
The answer is, B. 40.192
Step-by-step explanation:
The formula for circumference is, C=2(pi)r.
2×3.14=6.28
6.28×6.4=40.192
type a is 5 feet tall and grows at a rate of 18 inches per year Type B is 10 feet tall and grows at a rate of 8 inches per year. How many years will it take for these trees to be the same height
Answer:
The height will be same in 6 years time
Step-by-step explanation:
Since we do not know the years it would take, we can call this x
Kindly note that 12 inches is 1 feet, so 5 ft would be 60 inches and 10 feet will be 120 inches
Now, the height of tree A after x years would be;
60 + 18x
For tree B, height would be 120 + 8x
Now, we were made to know that they have equal height at the xth year.
Thus;
60 + 18x = 120 + 8x
10x = 120-60
10x = 60
x = 60/10 = 6
You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost? Write the equation and solve. plz put the right answer
Answer:
[tex]5\[/tex]
Step-by-step explanation:
Let x be cost of 1 eraser.
[tex]5 +4x=25[/tex]
[tex]4x=20[/tex]
[tex]x=5[/tex]
Answer:
The buyer bought four erasers and a magazine for $25.
The cost of each magazine is $5
The cost of an eraser is x dollars
The cost of 4 erasers is 4x
Step-by-step explanation:
Cost of the Erasers + Cost of the Magazine = Total Cost
4x + $5 = $25
Subtract 5 from both sides to isolate the term with the variable.
4x + 5 -5 = 25 -5
4x = 20
The last thing you do is you divide it by 4 on both sides to isolate the variable.
x = 20/4 = $5
Determine the reason that triangle NKL is congruent to triangle NJL.
Answer:
HL
Step-by-step explanation:
By the reflexive property of congruence, NL is congruent to NL. Note that NL is a leg shared by both triangles. Next, we can see that the two hypotenuses of the triangles are marked as congruent. This is enough information to prove that NKL is congruent to NJL by the HL congruence theorem.
Hope this helps! Please feel free to contact me if you have more questions :)
what is the midpoint of the line segment with endpoints (-2, -2) and (4,6)?
Answer:
(1,2)
Step-by-step explanation:
To find the midpoint, add the x coordinates and divide by 2
(-2+4)/2 = 2/2 =1
add the y coordinates and divide by 2
(-2+6)/2 = 4/2 = 2
The midpoint is
(1,2)
10>j+5
What are the inequalities of j?
Answer:
j < 5
Step-by-step explanation:
=> 10 > j+5
Subtracting both sides by 5, we get
=> 10-5 > j
=> 5 > j
OR
=> j < 5
PLEASE THIS IS TIMED, PLEASE HELP ME ANSWER THIS QUESTION!
A power failure on the bridge of a Great Lakes freighter has resulted in the ship's navigator having to do her own calculations. She measures the angle between the ship's course and a lighthouse on shore as 32°. After the ship has travelled 1500 m, she measures the angle to be 72°. Determine if the ship was closer to or farther from the lighthouse at the second sighting, and by what distance
Answer:
I think the ship was farther by 40°
150 adults complete a survey.
80 are women
write the ratio men:women in its simplest form
Answer=7:8
150 are adults
70:80 men to women
To simplify it you just to half it untill you can't no more,or find a mutiple that goes into both of them.
I divided them both by 5 = 14:16
Now divide by two 7:8
Hope that's right!
an arch in the shape of a semicircle is to be set up at the entrance of a festival the distance around the arch is about 110 ft what is the height of the arch in feet round your answer to the nearest whole number
Answer:
35
Step-by-step explanation:
circumference is pi x diameter since this is a semi circle you then divide it by 2
so if you work backwards 110x2 = 220 divided by pi
then you get the diameter and divide it by 2 to find the radius
2. A map scale is 2 in = 400 miles. If the actual distance between Virginia 10 points
Beach and San Diego is 2,335 miles, approximately how many inches
apart is it on a map? *
9 in
10 in
11 in
a
12 in
hadow that is 9 feet long. At the same time, a 6 ft tall
10 points
Answer:
800
Step-by-step explanation:
I believe it its 800 inches Mark me brainliest
A school must select one student from the honors program to send to the annual math convention. Which of the following is NOT a mathematically fair way to select the student?
A) Use a random number generator to choose a student ID number.
B) Have the students play a game that involves flipping a coin. Heads is worth 2 points and tails is worth 1 point. The first student to reach 40 points wins the trip.
C) Have each teacher select their favorite student and then randomly draw one of those names.
D) Line the students up alphabetically. Each student selects a playing card. A card is then drawn from another deck. The student with the matching card wins.
Answer:
Answer is option C.
Step-by-step explanation:
This is because it does not take into account "random selection" (probability). Thus the mode of selection is biased. The mere fact that a teacher selects his favourite student means the experiment is biased.
!!!PLEASE HELP!!!
the exponential function g, represented in the table, can be written as g(x)=a•b^x.
complete the equation for g(x).
please and thank you
Answer:
g(x) = [tex]12.(\frac{3}{4})^x[/tex]
Step-by-step explanation:
Exponential function g has been represented by the table attached,
Equation of the exponential function is,
g(x) = [tex]a.(b)^x[/tex]
Now we substitute the values of x and g(x) from the table,
For a point (0, 12),
12 = [tex]a(b)^0[/tex]
a = 12
For another point (1, 9),
9 = [tex]a.(b)^1[/tex]
9 = a × b
9 = 12 × b
b = [tex]\frac{9}{12}[/tex]
b = [tex]\frac{3}{4}[/tex]
Therefore, equation of the exponential function will be,
g(x) = [tex]12.(\frac{3}{4})^x[/tex]
5( x + 7) - 3 ( x - 4) = 7x + 2 what is x?
Answer:
x=9
Step-by-step explanation:
5( x + 7) - 3 ( x - 4) = 7x + 2
Distribute
5x+35 - 3x +12 = 7x +2
2x +47 = 7x+2
Subtract 2x from each side
2x+47-2x =7x -2x+2
47 = 5x+2
Subtract 2 from each side
47-2= 5x+2-2
45= 5x
Divide by 5
45/5 =5x/5
9 =x
Answer:
x = 9
Step-by-step explanation:
→Distribute the 5 to (x + 7), Distribute the -3 to (x - 4):
5(x + 7) - 3(x - 4) = 7x + 2
5x + 35 - 3x + 12 = 7x + 2
→Add like terms:
2x + 47 = 7x + 2
→Subtract 2x from both sides:
47 = 5x + 2
→Subtract 2 from both sides:
45 = 5x
→Divide both sides by 5:
9 = x
What is the coefficient in the expression 5x^2 +3 ?
A. 5
B. X
C. 3
D. 2
Answer:
the coefficient is A.5
Answer:
5
Step-by-step explanation:
5x^2 +3
The coefficient is the number next to the variable
5 is the coefficient
Taleen has 8 stamps in her collection, and she decides that each month she will add 3 stamps to her collection.
What does the rate of change represent?
What is the rate of change?
What does the initial value represent?
What is the initial value?
Answer:
The rate of change represents the number of stamps that is added each month.
The rate of change is 3
The initial value represents the number of stamps she had before she started adding 3 every month.
The initial value is 8
Step-by-step explanation:
The rate of change is 3 because that is how many stamps are added each month.
The initial value is 8 since that was the original amount she had before adding stamps every month.
Answer:
Answers are below
Step-by-step explanation:
The rate of change represents the number of stamps added every month.
The rate of change is 3.
The initial value represents how stamps she had before adding more.
The initial value us 8.
alguien me ayuda
5 (x-3) - 2 = 23
What is the value of the exponential expression below 161/2
A.2
B.8
C.6
D.4
Answer:
D
Step-by-step explanation:
I'm taking this to mean 16^(1/2)
If I am correct, then the answer is the square root of 16 which among the answers given is 4
So the answer is D
An integer 3a5b can be divided by 5 and 6, what is the value of a + b.
Answer:
a + b = 1 or 4
Step-by-step explanation:
The integer = 3a5b
The factors of the integer includes 5 and 6
∴ 5 × 6 = 30 is a factor of the integer hence 10 is also a factor which gives b = 0
We check for factors of four digit numbers with the first digit = 3, last digit = 0, penultimate to the last digit = 5 and divisible by 30
We have a50 divisible by 30, which gives, a5 divisible by 3 which includes
15 and 45 hence a can be 1 or 4 and a + b = 1 + 0 = 1 or 4 + 0 = 4.
During a recent rainstorm, 8 centimeters of rain fell in Dubaku's hometown, and 2.36 centimeters of rain fell in Elliot's hometown. During the same storm, 15.19 centimeters of snow fell in Alperen's hometown.
Answer:
5.64 cm
Step-by-step explanation:
Required:How much more rain fell in Dubaku's town than in Elliot's town?
8 centimeters of rain fell in Dubaku's hometown
2.36 centimeters of rain fell in Elliot's hometown
We are asked to find how much more rain fell in Dubaku's town than in Elliot's town so it is calculated as the difference between the rain in both of there towns and is given by:
Difference in rain= 8-2.36
Difference in rain= 5.64 cm.
Therefore, 5.64 cm of more rain fell in Dubaku's town than in Elliot's town.
Answer:
5.64
Step-by-step explanation:
8th grade word problem... Can someone please help if you don’t know then please don’t answer...
Answer:
30 of each type sold.
Step-by-step explanation:
It would be 30 since the LCM of 10 and 3 is 30.
If you need further explanation, reply to this answer but that's about it.
Square RSTU is translated to form R'S'T'U', which has vertices R'(–8, 1), S'(–4, 1), T'(–4, –3), and U'(–8, –3). If point S has coordinates of (3, –5), which point lies on a side of the pre-image, square RSTU?
(–5, –3)
(3, –3)
(–1, –6)
(4, –9)
please help
Answer:
The answer is A on Edge
Step-by-step explanation: