Solve the system of equations by graphing. -x+y = -2 y = -1
Answers
Answer:
the solution is (9, -1).
Step-by-step explanation:
graph the two equations on a graphing calculator (i use a website called desmos) and the point of intersection is the solution.
i hope this helps! have a great day <3
Related Questions
Use the information given to find a convenient dass width. Then list the class boundaries that can be used to create a relative frequency histogram. (Round your class with up to the nearest multiple of 5. Use the minimum value as the smallest class boundary. Enter your class boundaries as a comma separated list.)
8 classes for 75 measurements; minimum value-20; maximum value = 175
class width
class boundaries
Answers
Answer:
a)
Class width = 19.375
b)
Class Boundaries are;
19.5 - 39.5, 39.5 - 59.5, 59.5 - 79.5, 79.5 - 99.5, 99.5 - 119.5, 119.5 - 139.5, 139.5 - 159.5, 159.5 - 179.5.
Step-by-step explanation:
Given the data in the question;
Class width = Range / Number of classes
Range = maximum - minimum = 175 - 20 = 155
Number of classes = 8
so,
Class width = 155 / 8 = 19.375
∴ the class limits will be
20 - 39
40 - 59
60 - 79
80 - 99
100 - 119
120 - 139
140 - 159
160 - 179
Low class boundary = Lower class limit - 0.5
Upper class boundary = upper class limit + 0.5
so
Class Boundaries are;
19.5 - 39.5, 39.5 - 59.5, 59.5 - 79.5, 79.5 - 99.5, 99.5 - 119.5, 119.5 - 139.5, 139.5 - 159.5, 159.5 - 179.5.
The ratio of sheep to the total number of animals on a local farm is 2:5.
Which of the following is the percent of animals on the farm that are
sheep?
29%
60%
40%
20%
*says the correct answer is 29%
Answers
Answer:
40%
Step-by-step explanation:
2:5 is equal to 4:10 or 40%.
Answer:
Hey mate.....
Step-by-step explanation:
This is ur answer.....
--> Its not 29% its 40%
hope it helps you,
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Identify the point from the equation y + 5 = 3(x -2)
Answers
y-intercept: (0,-11)
Help pleaseee I need some assistance right now
Answers
Answer:
69°
Step-by-step explanation:
if CA and AT are congruentsides, this means that the angle of C and T must also be the same.
In order for a triangle to be a triangle, they must meet the angle of 180 degrees.
We know CAT is = to 42
So we subtract 42 from 180 = 138 degrees
we then divide 138 by 2 and we get 69
angles c + t are both 69 degrees
Answer:
69°
Step-by-step explanation:
The measure of angle A is given as 42 and the sum of interior angles in a triangle is equal to 180° we subtract 42 from 180 and divide the result with 2 because this is an Isosceles triangle since |AC| = |AT| m<C = m<T
(180 - 42) ÷ 2 = 69°
What is the value of (4/3)^3
Answers
Answer:
64/27 = 2.37037037
Step-by-step explanation:
(4/3)^3
Calculate 4/3 to the power of 3 and get 64/27
64/27
solve the triangles. Round to the nearest tenth А 7 B 6 C
Answers
Answer:
Sure but can you show me the triangle.
whats warmer -3 or -4 degree celcius
Answers
A train moves at a speed of 280 feet in 30 seconds.How far did it travel in 1 minute?(pls help asap!)
Answers
Answer: A
Step-by-step explanation:
270/30
270÷30 = 9
30÷30 = 1
PLEASE HELP GEOMETRY
Answers
Answer:
Step-by-step explanation:
[tex]\frac{6}{18+6}= \frac{x}{8 }[/tex]
24x=48
x=2
solve each equation for given variable
-5i– 25 = 25
Answers
Answer:
-4
Step-by-step explanation:
-5i - 25 = 25
+25. +25
-5i = 50/-5
i = -4
PLEASE HELP ASAP 20 POINTS
The newly proposed city park is rectangle shaped. Blake drew a scale drawing of the park and used a scale of 1 cm: 20 ft
1) If the width on the scale drawing of the city park is 25 centimeters, what is the actual width of the park?
A) 250 feet
B) 400 feet
C)500 feet
D)750 feet
2) If the width on the scale drawing of the city park is 25 centimeters and the length is 30 centimeters, what is the actual area of the park?
A) 75,000 ft^2
B) 110,000 ft^2
C) 300,000 ft^2
D) 750,000 ft^2
Answers
Answer:
a ,c ,b
esa son creo pero nose
The actual dimensions of the rectangular park are 500 cm by 600 cm and actual area of the park is 300,000 ft²
What is scale?A scale is a set of levels or numbers which are used in a particular system of measuring things or are used when comparing things.
Given that, Blake drew a scale drawing of a rectangle shaped park and used a scale of 1 cm: 20 ft
We need to find the actual width if the width on the scale drawing of the city park is 25 cm, and actual area if the width on the scale drawing of the city park is 25 cm and the length is 30 cm,
a) The given measurement of width in the drawing is 25 cm,
We have,
1 cm = 20 ft
∴ 25 cm = 20 × 25
= 500 ft
b) The given measurement of the width on the scale drawing of the city park is 25 cm and the length is 30 cm,
Actual width = 500 ft
Actual length = 20 × 30 = 600 ft
Area of rectangle = length × width
Actual area = 500 × 600
= 300,000
Hence, the actual dimensions of the rectangular park are 500 cm by 600 cm and actual area of the park is 300,000 ft²
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The expression (x - 0.35x) represents 35% off the cost of item x. How is this equivalent to multiplying x by 0.65?
Answers
Answer:
It is equivalent.
Step-by-step explanation:
(x-0.35x) is (Total price-0.35 × the original price)=0.65×
Please do all of the attachments, quick. It is due please
First one with the right answer gets brainlest, and I will give extra points please.
Answers
So they are just asking for what positive or negative numbers make the equations true.
So remember how positive and a negative numbers relate and you will be fine.
B. x-(+7)=x+(-7)
C. X-(-25)=x+25
A. X-(-3)=x+3
Given: y = 12 when x = 7, find: “y” when x = 5.
Answers
Answer:
y = 84/5 or 16 4/5
Step-by-step explanation:
12/5 = y/7
cross-multiply to get 5y = 84
y = 84/5
I If x > 0 and x^2-2x-35 = 0, then the value of x^2 is 3
Answers
Answer:
x^2 = 49
Step-by-step explanation:
Notice that the polynomial on the left of the equation can be factored out as:
x^2 - 2 x - 35 = (x - 7) (x + 5)
Then the equation: x^2 - 2 x - 35 = = 0
gives two solutions as follows:
(x - 7) (x + 5) = 0 Then either binomial factor must be zero, and therefore, x = 7 or x = -5
Since we are told that x is POSITIVE, the x = 7, and its square is 7^2 = 49.
Find the value of x that makes N the Incenter of the triangle
Answers
Answer:
um im not 100% but i think 47
Step-by-step explanation:
The value of x for the given triangle is found to be 6.
What is Pythagoras theorem?Pythagoras theorem states that in a right angled triangle, the sum of the squares of the perpendicular and base is equal to the square of the hypotenuse. It can be written as h² = p² + b².
Given triangle has N as the incentre.
Which implies that NJ = NL= NK.
Now, apply Pythagoras theorem in ΔANK to obtain,
AN² = AK²+ NK²
=> 37² = 35² + NK²
=> NK²= 37²- 35²
=> NK²= 144
=> NK = 12
Then, As per the question it can be written as,
2x = 12
=> x = 6
Hence, the value of x for the point N to be the incentre is 6.
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Suppose a math class contains 40 students. There are 18 females (two of whom speak Spanish) and 22 males (two of whom speak Spanish). Give all answers as decimals to at least two decimal places.
What percent of Spanish speaking students are male? Give answer as a decimal.
Answers
Answer:
50%.
Step-by-step explanation:
Given that a math class contains 40 students, and there are 18 females (two of whom speak Spanish) and 22 males (two of whom speak Spanish), in order to know the percent of Spanish speaking students that are male with respect to the total Spanish-speaking students, the following calculation has to be made:
2 + 2 = 4
2 / 4 = 0.5
Therefore, the percentage of Spanish speaking students that are male is 50%.
Think you can balance this scale?
Answers
Yes. balancing an unknown mass against a known mass.
Explanation:Hope it helps
#CARRYONLEARNING
Which names the function for the following arithmetic series 11,7,3,-1
Answers
Answer:
Arithmetic sequence
Step-by-step explanation:
This is an arithmetic sequence, since each new term is obtained by subtracting 4 from the previous term.
What is the solution set for 7x - 3= 18, given the replacement set {0. 1. 2. 3. 4}?
0x=0
ox=1
x=2
X=3
Answers
Answer:
ANSWER IS X=3
Step-by-step explanation:
7(3)-3=18 So 7 times 3 minus 3 equals 18
Answer: it is x=3 and i have proof
Step-by-step explanation:
A train travels at an average speed of 35m/s. workout the time it takes to travel 225km?
Answers
Answer:
Step-by-step explanation:
d = rt
225km = 225,000m
225,000 = 35*t
t = 6,428.57 seconds
or 107.14 minutes
or 1 hour and 47 minutes
what is the distant between (3,24) and (7,56)
Answers
A large discount store wants to determine the average yearly income of its shoppers. A researcher chooses 100 shoppers at random between 1:00 p.m. and 5:00 p.m. on a Saturday to survey. Identify the population.
A. All shoppers at the discount store between 1:00 p.m. and 5:00 p.m. on this particular Saturday.
B. The 100 surveyed shoppers at the discount store between 1:00 p.m. and 5:00 p.m. on this particular Saturday.
C. All shoppers at the discount store on this particular Saturday.
D. All shoppers at the discount store during a year's time.
E. None of the above.
Answers
Answer:
The population is:
D. All shoppers at the discount store during a year's time.
Step-by-step explanation:
Since the discount store wants to determine the average yearly income of its shoppers, the population of interest here is all the shoppers that visit the discount store during a year's time. The population includes all the individual shoppers. However, this number may be too difficult to obtain and work on their data. This is the researcher can choose a sample, calculating its statistics to approximate the population parameters.
In a certain year, about 11/5000 of a country’s population were female nursing home residents and about 7/5000 of a country’s population were male nursing home residents. Find the total fraction of the county’s population that was residing in nursing homes that year
Answers
Answer:
18/5000 or 9/2500
Step-by-step explanation:
Since we know both male and female nursing home residents, we can just add the two together to find the total.
Solve the following equation for x.
10 = 2 – 4(ar – 3)
OA. -
a
OB.
Oc.
OD.
5
a
Answers
Answer:
Options C. -5/a
x =1/a is the solution for the given equation. Option D is correct.
What is algebraic Expression?Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.
Let's simplify the equation first:
10 = 2 - 4(ax - 3)
10 = 2 - 4ax + 12 (distribute the negative 4)
10 = -4ax + 14 (combine like terms)
Now we can isolate the variable x by subtracting 14 from both sides and then dividing by -4:
10 - 14 = -4ax
-4 = -4ax
x = 1/a
Therefore, the solution to the equation is x = 1/a.
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describe how to obtain the graph of g from the graph of f(x)=
[tex] \sqrt[3]{x} [/tex]
Answers
Answer: see below
Step-by-step explanation:
Notes: Given [tex]y=a\sqrt[3]{x-h}+k[/tex]
h: shifts to the right (if positive) or left (if negative)k: shifts up (if positive) or down (if negative)a: is a vertical stretch (if >1) or shrink (if <1)-a: reflection over the x-axis11) h = -1, k = -2
shifts left 1 unit and down 2 units from the parent function
12) h = 1, k = 5
shifts right 1 unit and up 5 units from the parent function
13) k = 1, a = -1
shifts down 1 unit from the parent function and reflects over the x-axis
14) h = -1, k = 5
shifts left 1 unit and up 5 units from the parent function
lily bought a hockey stick priced at $75 but it was on sale for 25% after 10% sales tax,what is the total cost? I NEED HELPPPPPPPPPPPPPPP
Answers
75 minus 18.75=
56.25 because that was the discount so then 56.25 times .10= 5.63
56.25+5.63= $61.88<— this is the final answer and also u added the 5.63 because that was the sales tax and for sales tax u always add and for discount u always subtract, hope this helps!
What are the next 3 terms in the sequence 3,6,9,12?
Answers
Answer:
15,18,21
Step-by-step explanation:
Answer:
15 18 21
Step-by-step explanation:
its skskskskskksksskskkssksksksk
King Soopers has two different sizes of sport drinks. Sigi wanted to make sure that he got the size with the better price. There was one that was 35 Fl Oz. for $1.29 and the other was 24 Fl Oz. for $1.20. Which size is the better buy?
I will give you brainliest
Answers
$1.20/(24 oz) = $0.05/oz
The 35-oz drink is a better buy.
518489625648789*46548897
Answers
Answer:
[tex]2.41351201 *10^2[/tex]
Step-by-step explanation:
hope this helps have a good rest of your day :) ❤