Answer:
0, -1
Step-by-step explanation:
trust me I just took the exam on edge 2020
The solution to the given system of equations will be (0, -1). which is the correct option (B).
What is the Linear equation?A linear equation is defined as an equation in which the highest power of the variable is always one.
The system of linear equations y = 2 x minus 1 and y = negative 4 x minus 1 which is given in the question.
y = 2x - 1 ....(i)
y = -4x - 1 ....(ii)
Substitute the value of equation (i) in equation (ii) and solve for variable x :
2x - 1 = -4x - 1
Rearrange the terms of variable "x" and combine them,
2x + 4x = -1 + 1
6x = 0
x = 0
Substitute the value of x = 0 in equation (ii) and solve for variable y :
y = -4(0) - 1
y = -1
Therefore, the solution to the given system of equations will be (0, -1).
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Two cities Asheville and Boulder are 2.5 inches apart on a map. A third city well spring is located exactly halfway between Asheville and Boulder. If the scale is 0.5 inches = 15 miles find the actual distance from wellspring to Boulder
Answer:
75miles
Step-by-step explanation:
Let A be the location of Asheville, B be the location of Boulder and W be the location of wellspring.
If well spring is located exactly halfway between Asheville and Boulder, then;
AW + WB = AB
If Asheville and Boulder are 2.5 inches apart on a map, then AB = 2.5 inches
The actual distance from wellspring to Boulder is WB
Since W is the midpoint of A and B, then AW = WB. The equation becomes;
WB + WB = AB
2WB = AB
WB = AB.2
WB = 2.5/2
WB = 1.25 inches
Hence the distance from wellspring to Boulder is 1.25inches.
Since 0.5 inches = 15 miles on the map,
1.25inches = x
Cross multiply;
0.5x = 15 * 1.25
0.5x = 18.75
x = 18.75/1.25
x = 75miles
Hence the actual distance from wellspring to Boulder is 75miles
X + y = 9 x + 3y = 13 If (x,y) is the solution to the given system of equations, what is the value of y?
Answer:
D.) 3
Step-by-step explanation:
x + 3 = 8
x - 3 = 2
so that means x = 5 and y = 3
What is the slope of the following points (5,7) and (12,2)?
5
-7/5
2/10
-5/7
WILL GIVE BRAINLIEST
Answer:
use the slope formula: (y2-y1)/(x2-x1) and then plug in the points given
(2-7)/(12-5)
-5/7
the slope is the last one or "D"
Step-by-step explanation:
..............................................................................
Answer:
-5 ,3 ...
Step-by-step explanation:
thats all i can think of ..,..
What is the surface area of the right prism given below?
O A. 298 units2
OB. 840 units2
O C. 480 units2
O D. 420 units2
Answer:
480 units^2
Step-by-step explanation:
5 * 12 = 60
13 * 14 = 182
12 *14 = 168
5 * 14 = 70
480
The surface area of the given prism will be 480 square units so the correct answer is option C.
What is surface area?The space occupied by any two-dimensional figure in a plane is called the area. The area of the outer surface of any body is called the surface area.
The triangular prism is having 6 surfaces so the surface area will be the sum of the area of all the sides of the prism.
The area of all the sides of the prism will be calculated as follows:-
5 x 12 = 60
13 x 14 = 182
12 x 14 = 168
5 x 14 = 70
The total surface area of the prims will be:-
SA of prism = 60 + 182 + 168 + 70 = 480 square units
Therefore the surface area of the given prism will be 480 square units so the correct answer is option C.
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What is the average rate of change of the function
f(x) = 2x + 8
over the interval [2, 6)?
The average rate of change of the function f(x) over the interval [tex][2, 6][/tex] is 2.
Important information:
The function is [tex]f(x)=2x+8[/tex].The given interval is [2,6].Average rate of change:The average rate of change of the function f(x) over the given interval [tex][a,b][/tex] is:
[tex]m=\dfrac{f(b)-f(a)}{b-a}[/tex]
Using the above formula, we get
[tex]m=\dfrac{f(6)-f(2)}{6-2}[/tex]
[tex]m=\dfrac{(2(6)+8)-(2(2)+8)}{4}[/tex]
[tex]m=\dfrac{12+8-4-8}{4}[/tex]
[tex]m=\dfrac{8}{4}[/tex]
[tex]m=2[/tex]
Thus, the average rate of change of the function f(x) over the interval [tex][2, 6][/tex] is 2.
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I am super confused
A small aquarium holds 70% as much as a large aquarium. If the small aquarium holds 35 liters, how many liters does the large aquarium hold?
Answer:
50
Step-by-step explanation:
so in other words, 35 is 70% of something. So you can divide 35 by 0.7 to get your answer.
Answer:
24.5 litres I guess is the answer for the question
How many places do you need to move the decimal to the left to write the
number below in scientific notation?
12000000000
A. 10
B. 9
C. 11
O O
D. 6
Answer:
9
Step-by-step explanation:
the decimal always goes between the numbers that arent 0s
Answer:
it’s 9 because i don’t know I just saw someone else say that
Step-by-step explanation:
What is
-2/3
-
5/6
?
Math/honors math/ Mathematics
Answer:
-3/2 is your answer !!!!
Answer:
[tex]-1\frac{1}{2}[/tex]
Step-by-step explanation:
Trust me it's right...lol
I need a quick asnwer!!!
Answer:
third one
Step-by-step explanation:
Answer:
Its the third one you welcome
Step-by-step explanation:
A group of friends paid $7 each to play a round of golf . It also cost $ 12 to rent a golf cart. As a group, they paid $ 33 altogether . Determine the number of friends that played golf .
Answer:
3 friends played golf
Step-by-step explanation:
33-12=21
21/7=3
Graph a line that contains (-2,7) and a slope of 4
Answer:
The equation would be y = 4x + 15
Answer:
draw a line trogh the points (-2, 7) and ( -1,11)
Step-by-step explanation:
Plot the first point (-2,7) then go 4 up and 1 right (because the slope is
4 = 4 rise/1run ), plot that second point ( -2+1, 7+4) = (-1, 11), and connect them.
Does anyone know the answer ? (geometry)
Answer:
The answer 7.48
Step-by-step explanation:
I hope this helped
i have to find the mean and range of this data set and show work.
data set: 49,50,52,58,61,63,66,67,67,68
Answer:
61 is the mean and the range is 19
Step-by-step explanation:
trust
Mean = [tex]60.1[/tex] and Range = [tex]19[/tex] for the given set of data.
What is Mean?
"Mean is the average set of all the given values."
What is Range?"Range is the difference between highest and the lowest value."
Formula
Mean = [tex]\frac{Sum of all the observations}{Total number of observations}[/tex]
Therefore, Mean = [tex]\frac{49 + 50 +52 +58 +61 +63 +66 +67 +67 +68}{10}[/tex]
= [tex]\frac{601}{10}[/tex]
= [tex]60.1[/tex]
Range = Max (x) - Min (x)
= [tex]68 - 49[/tex]
= [tex]19[/tex]
Hence, the Mean = [tex]60.1[/tex] and Range = [tex]19[/tex] for the given data set.
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What is the x-intercept of the Cubic Function shown below?
A(1,0)
B(0,1)
C(1,7)
D(7,1)
Pls answer a and b!!!!!
Answer:
a) the answer is 2/21
b) the answer is 6
Jackson has to have his car repaired. The mechanic tells him it will cost $75 for each hour of labor plus the cost of the parts. He discovers that the parts cost $165.
Part A: Write an equation that can be used to determine the cost of the repairs for any hours of labor.
Part B: How much would the repairs be if it took 3 hours?
Part C: What is the meaning of the slope in Part A?
Part D: What is the meaning of the y-intercept in Part A?
Answer:
a 75x+165=y
b 75(3)+165=390
c 75x is the cost increasing for each hour
d y-intercept=165, it cost at least 165 for the parts
Step-by-step explanation:
PLEASE, HELP. 60 POINTS!
Thank you!
Answer: 20ft
Step-by-step explanation:
The number of newly reported crime cases in a county in New York State is shown in the accompanying table, where x represents the number of years since 2007, and y represents number of new cases. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest hundredth. Using this equation, estimate the calendar year in which the number of new cases would reach 1344.
Years since 2007 (x) New Cases (y)
0 1112
1 1081
2 1116
3 1159
Answer:
y=17.6x+1090.6
2021
Step-by-step explanation:
Got this off of Delta Math. So this answer is 100 percent correct!
Find the measure of angle abc
Answer:
The answer is 9!
Step-by-step explanation:
Ik this is late but for people in the future, the answer is definetly 9.
180 = 6x + 6x + 8x
Now substituting 9 in for the x values;
180 = 6(9) + 6(9) + 8(9)
180 = 54 + 54 + 72
180 = 180
BYE!
(8+2)² HELP ME I NEED IT
Answer:
100 answer
follow me for more best answer
It equals 100
Could I have branliest, heart with 5 stars
Thanks and have a merry Christmas!
I need quick help pls!!!
Answer: 3 root 2
Its the third answer
Step-by-step explanation:
PLEASE HELP I'LL GIVE YOU BRAINLIEST
Find the slope, or rate of change:
Answer:
C. 3/2
Step-by-step explanation:
slope:
Rise/run:
rise: 6
run: 4
6/4:
reduce = 3/2
hi need help with math
some one help
Answer:
Ether C or D. hope this helps
yea yea yea yea yea help please i have a zero in this class lol
Answer:
D. -3z+2
Step-by-step explanation:
Steps:
Remove parentheses: (a) = a
= 5z+9-(8z+7)
....
Simplify
5z+9-8z-7: -3z+2
Answer:
-3z +2
Step-by-step explanation:
A expression in terms of z is given to us and we need to simplify out the given expression . The give an expression to us is ,
[tex]\implies (5z + 9 ) - ( 8z + 7 )[/tex]
Recall that , + × - = - . We have ,
[tex]\implies 5z + 9 - 8z - 7 [/tex]
Combining the like terms and simplifying ,
[tex]\implies 5z - 8z - 7 +9 \\\\\implies \underline{\underline{ -3z +2 }}[/tex]
Hence the last option is correct .
The ratio of cats to dogs at Mrs. Hernandez's Pet Shop is 2 to 3. There are 24 dogs at her pet shop. What is the total number of animals at Mrs. Hernandez's Pet Shop? F 40 G 16 H 60 j 36
Answer: J 36, Total: 60 animals
Step-by-step explanation:
24/36 divided by 12=2/3
Total:24+36=60
Which situation can the integer -71 represent?
Choose the correct answer below.
A) a bird flies 71 ft above sea level
B) you climb a mountain 71 ft above sea level
C) a fish swms 71 ft below sea level
can someone please help me
Answer:
I think it's -2p or 2p-4
PLZ HELP ME ITS 30 POINTS PLZ HELP ME ITS 30 POINTS
Answer:
thankssss
Step-by-step explanation:
Answer:
ty
Step-by-step explanation:
HURRY PLEASE!!! 10 MINUTES!!!!!!!!!!
Many golfers wear wrist bracelets containing magnets because they claim the magnets improve balance and the length of shots played off the tee. A golfer would like to determine if the claim has merit and proposes two methods for collecting data. Method 1: As golfers approach the first tee, give some golfers wrist bracelets with magnets and some golfers wrist bracelets without magnets. During the round of golf, keep track of the length of the golfers’ shots. Method 2: Contact golfers who have purchased wrist bracelets with magnets and ask them to provide information about their shot length. Which statement about these methods is true? Method 1 is an observational study because it does not attempt to influence responses. Method 2 is an observational study because it does not attempt to influence responses. Method 2 is an observational study because it could include golfers from many golf courses. Both methods are observational studies because they both collect information about shot length.
Answer:
I think it is D
Step-by-step explanation:
Answer:
C
EDGE
Step-by-step explanation:
