Answer:
C
Step-by-step explanation:
Which graph represents the system of equations?
y = -2x + 1
y = -2x^2 + 1
Plzz help, this locks tonight!
The graph of the system of equations:
y = -2x + 1y = -2x^2 + 1Is the one in the bottom right.
Which graph represents the system of equations?Here we want to see which graph represents the system of equations:
y = -2x + 1y = -2x^2 + 1So we have a linear equation that crosses the y-axis at y = 1, and a parabola that crosses the y-axis also at y = 1 (you can verify that by evaluating both equations in x = 0).
Only with that, we can conclude that the correct graph for the system of equations is the last one (bottom right graph)
Learn more about systems of equations:
https://brainly.com/question/13729904
#SPJ1
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLEASEEEE
Step-by-step explanation:
Angle UQN = Angle QNM, in alternate interior angle relation so Angle QNM will be x.Now we know that the angles inside a triangle sum up to give 180⁰,that is x+x+42⁰=180⁰2x+42⁰=180⁰
2x=180⁰- 42⁰
2x= 138⁰
x= 138⁰/2
x= 69⁰
WILL GIVE BRAINLIST AND 30 POINTS!
Are the two figures similar? Explain why or why not. If similar, give the ratio of area & the ratio of volume.
They are similar
4/6 = 2/3
3/4.5 = 2/3
5/7.5 = 2/3
The small rectangular prism’s volume is 4x3x5 = 60
The large rectangular prism’s volume is 6x4.5x7.5= 202.5
Hope this helps!
A car travels for 2 hours at an average speed of 60 mph.
Work out the total distance of the journey.
Answer: 120 Miles
Step-by-step explanation:
2 x 60 = 120
Answer:
Travels 2hours Speed 60mph
it would be 60 + 2 = 62
I hope this helps you!
XoXo Mashayla
Step-by-step explanation:
help help help help help help help help help help help
Answer:
x1 y1 x2 y2
3 -1 -8 0
ΔY 1
ΔX -11
slope= - 1/11
B= - 8/11
Step-by-step explanation:
Answer:
slope is -1/11
Step-by-step explanation:
Write the ratio:
0.15
to
0.6
as a fraction in lowest terms.
Answer:
The ratio 15 : 60 can be reduced to lowest terms by dividing both terms by the GCF = 15 :
15 : 60 = 1 : 4
basically 1/4
Step-by-step explanation:
Which of the following is a statement? (a) The fishes are beautiful (b) Study mathematics. (c) x is a capital of country y. (d) Water is essential for health.
Answer:
its letter a
Step-by-step explanation:
I hope you help
Brian can type 50 words per minute. He needs to finish typing his 700-word essay and already has 375 words typed. Write and solve an equation to determine the number of minutes (m) that it will take Brian to finish writing his essay. (Round your answer to the nearest tenth)
If the two legs of a right triangle are 15 and 20, how long is the hypotenuse?
Answer:
25
Step-by-step explanation:
To solve this problem, you can use the pythagorean theorem, which is a^2 + b^2 = c^2 where a and b are legs and c is the hypotenuse. We can plug in the values of 15 and 20, and solve for c:
15^2 + 20^2 = c^2
225 + 400 = c^2
625 = c^2
c = 25
This means the hypotenuse is 25.
Berto has $12 to put gas in his car. If gas costs $3.75 per gallon, which ordered pair relating number of gallons of gas, x, to the total cost of the gas, y, includes the greatest amount of gas Berto can buy?
]
Answer:
im not completely sure if the question is just asking how many gallons of gas berto is able to buy but if it is than he is able to buy 3.2 gallons of gas
Step-by-step explanation:
just do how much money he has divided by how much gas costs to see how much gas he will be able to buy
Answer: (3.2, 12)
Step-by-step explanation:
Two-Fifths of a number is 48. What is 3/4 of the SAME number?
Need help urgently
Answer:
[see below]
Step-by-step explanation:
"Two-Fifths of a number is 48."
(2/5)n = 48
((2/5n)(5/2) = 48 *(5/2)
n = 120
------------------------------------
120 * (3/4) = 90
Hope this helps you.
Cho hình thang ABCD(AB//CD) có AB=40cm CD=80cm BC =50cm AD=30cm cmr ABCD là hình thang vuông
From A draw AG // BC cuts CD at WO
We have: Trapezoid ABCD (assumption)
⇒ AB // CD
⇒ AB // GC (because G ∈ CD)
Considering quadrilateral ABCG, there are:
AB // GC (proven above)
AG // BC (assumption)
⇒ Quadrilateral ABCG is a parallelogram
⇒ AB = GC = 40 cm
AG = BC = 50 cm
We have: DG = CD - GC (because G ∈ CD)
DG = 80 - 40
⇒ DG = 40(cm)
Considering ΔAGD, there are:
AG2=AD2+DG2AG2=AD2+DG2
502=302+402⇒502=302+402
⇒502=900+1600⇒502=900+1600
502=2500⇒502=2500
⇒502=502⇒502=502
⇒ AGD square at D
⇒ Trapezoid ABCD is a square trapezoid
QUICK! WHAT IS THIS ANSWER?
Answer:
a)2x-3y
b)4(9a-4)
Step-by-step explanation:
a)we want to expand the following expression:
[tex] \displaystyle - \frac{1}{4} ( - 8x + 12y)[/tex]
well to do so we consider distributive property thus distribute:
[tex] \displaystyle - \frac{1}{4} (- 8x )+ - \frac{1}{4}( 12y)[/tex]
reduce fraction which yields:
[tex] \displaystyle - \frac{1}{4} (- 8x )+ - \frac{1}{4}( 12y) \\ \\ \displaystyle 2x + ( - 3y)[/tex]
simplify Parentheses:
[tex] \displaystyle \boxed{ 2x - 3y}[/tex]
b)in the expression there's a common factor of 4 therefore factor it out:
[tex] \displaystyle 9.4a - 4.4 \\ \\ \displaystyle \boxed{4(9a - 4)}[/tex]
Find the surface area and volume for each of the following with full explanation:
Answer:
100
16
Step-by-step explanation:Base is 6x6 so 36 and side is 6x8/3 so 16 4 sides so 16x4 =64+36=100 for surface area and volume is 16
Make x the subject of the formula
mx=y
3х + 5
Invers of function f
Answer:
x-2/3 is the answer.......
Please mark me as Brainliest
Evaluate this expression (3+4)-4/42+3(4+2)/3
Answer:
Step-by-step explanation:
Use PEDMAS
(3 + 4) - 4/42 + 3(4 +2)/3 = 7 - [tex]\frac{4}{42}[/tex] + 3 * [tex]\frac{6}{3}[/tex] {Inside parenthesis}
= 7 - [tex]\frac{2}{21}[/tex] + 6 {Division}
= 13 - [tex]\frac{2}{21}[/tex]
[tex]=\frac{13*21}{1*21}-\frac{2}{21}\\\\=\frac{273}{21}-\frac{2}{21}\\\\=\frac{271}{21}[/tex]
Caroline and Stephen have played 44 tennis matches.
Caroline has won 23 times.
Stephen won the rest.
a) Estimate the probability that Caroline wins.
b) Estimate the probability that Stephen wins.
Harry reads that a particular element has an atom with a mass of 0.000000000012 grams. What is the weight of the atom expressed in scientific notation?
A.
1.2 × 10-9 grams
B.
1.2 × 10-11 grams
C.
1.2 × 1011 grams
D.
1.2 × 1012 grams
Answer:
Since this number is small we know that the exponent will be negative.
In scientific notation the decimal must be between the first two NON zero numbers. So move the decimal and count how many positions it was moved.
1.2 x 10 ^-11
Step-by-step explanation:
Can someone help me with this math homework please!
Answer:
1=C
2=B
3=D
4=A
Step-by-step explanation:
im not sure about 3 and 4 so yeh and sorry for responding late
Is (5, 0) a solution to the equation y = x + 5?
Guys I need help
Answer:
no
Step-by-step explanation:
substitute the x- coordinate 5 into the equation and if the result is equal to the y- coordinate 0 then it is a solution
y = 5 + 5 = 10 ≠ 0
Then (5, 0 ) is not a solution to the equation
tìm x, y, z biết : 1. x/7=7/x 2.x-2/5=3/8
Ahmed is making 8 kites. He uses 5 yards of ribbon for each kite. If he adds 3 more identical kites which he has already made before, how many kites will Ahmed have in toTal
he would have 11 kites in total, hope this helps!
What is the value of the expression below when
z
=
5
z=5?
5
z
−
4 Please help
Answer:
z=5
Step-by-step explanation:
answer is that thank
Answer: 20
Step-by-step explanation:
z = 5 ⇔ Given
5z - 5 ⇔ Expression
5 (5) - 5 ⇔ Substitution
25 - 5 ⇔ Multiplication
20 ⇔ Subtraction
Hope this helps!! :)
Please let me know if you have any questions
Jack plotted the graph below to show the relationship between the temperature of his city and the number of ice cream cones he sold daily: Main title on graph is Ice Cream Cone Sale. Graph shows 0 to 30 on x axis at increments of 5 and 0 to 60 on y axis at increments of 10. The label on the x axis is Temperature in degree C, and the label on the y axis is Number of Ice Cream Cones Sold. Dots are made at the ordered pairs 0, 5 and 5, 15 and 7.5, 15 and 10, 24 and 10, 28 and 12, 32 and 12.5, 25 and 12.5, 30 and 15, 35 and 15, 40 and 17.5, 35 and 20, 45 and 22.5, 36 and 23, 46 and 25, 55 and 27.5, 60. Part A: In your own words, describe the relationship between the temperature of the city and the number of ice cream cones sold. (5 points) Part B: Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate slope and y-intercept. (5 points)
Answer:
(a) The amount of ice cream increase as temperature increases
(b)
[tex]y = 2x + 5[/tex] --- equation
[tex]y = 5[/tex] --- y intercept
[tex]m = 2[/tex] --- slope
Step-by-step explanation:
Given
See attachment for graph
Solving (a): The relationship between the variables
From the attached graph, the dots on the graph increases towards up-right direction. This implies that there is a positive correlation between the variables.
In other words;
The amount of ice cream increase as temperature increases
Solving (b): The line of best fit
First, we draw a line through the points (the line should have almost equal points on both sides; see attachment 2).
From (2), we select any 2 points on the line:
[tex](x_1,y_1) = (15,35)[/tex]
[tex](x_2,y_2) = (0,5)[/tex]
The slope (m) is:
[tex]m = \frac{y_2 -y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{5-35}{0-15}[/tex]
[tex]m = \frac{-30}{-15}[/tex]
[tex]m = 2[/tex]
So, the line of best fit is:
[tex]y = m(x - x_1) + y_1[/tex]
Substitute known values:
[tex]y = 2(x - 0) + 5[/tex]
[tex]y = 2(x) + 5[/tex]
[tex]y = 2x + 5[/tex]
The y-intercept is when [tex]x=0[/tex]
So, we have:
[tex]y = 2*0 + 5[/tex]
[tex]y = 0 + 5[/tex]
[tex]y = 5[/tex]
Find the decay factor from the model y =4520(0.6)square 6
Answer:
Step-by-step explanation:
What does x stand for in the equation 1+x=2
This frequency table represents the number of cars owned by each family on a street. What is the mean number of cars owned by each family?
A. 2.5
B. 3
C. 4
D. 5.5
Answer:
B
Step-by-step explanation:
={(1x4)+(2x3)+(3x4)+(4x7)+(5x2)}÷20
={4+6+12+28+10}÷20
={10+40+10}÷20
={60}÷20
=3
Pleaseeee helppppppp
Answer:
d = 8t
Step-by-step explanation:
5
Drag the tiles to the boxes to form correct pairs
Match each equation to its factorized version and solution
24x6 = 0
2x + 3) = 0
Solution X = 0.3
14x - 7x2 = 0
6x14x)=0
Solution 30 X34
2x26x0
x14 - x)=0
Solution: x = 0, x= 4
4XX=0
7x(2 - x)=0
Solution XEOX= 2
Answer:
1. 2x^2+6x=0 <--> 2x(x+3)=0
2.4x-x^2=0 <--> x(4-x)=0
3.14x-7x^2=0 <--> 7x(2-x)=0
4.24x-6x^2=0 <--> 6x(4-x)=0
Step-by-step explanation:
just try to expand the answer given for example when you look at no.1, 2x•x=2x^2 so look for the equation where there is a 2x^2 in it.
for finding the solution, for example when you look at no.1 again, you have 2x=0 so x=0/2=0 and you also have x+3=0 so x=-3
this applies to all the pther no.
