The line y = mx + c passes through the points (-2, 1) and (4,4).
Write down a pair of simultaneous equations involving m and c.
Solve the simultaneous equations.
Answer:
Step-by-step explanation:
Insert x for -2 & 4 and y for 1 & 4
1=-2m+c, 4=4m+c
solve the equation, m=1/2, c=2
Answer:
y = 1/2m + 2
Step-by-step explanation:
1 = -2m + c (1)
4 = 4m + c (2)
2 = -4m + 2c (1*)
(1*) + (2) = 6 = 3c
c = 2
y = mx + 2
4 = 4m + 2
2 = 4m
m = 1/2
so y = 1/2m + 2
Someone please help me
Answer:
Step-by-step explanation:
cone: attached picture below
composite shape: To calculate the area of a composite shape you must divide the shape into rectangles, triangles or other shapes you can find the area of and then add the areas back together. You may have to calculate missing lengths before finding the area of some of the shapes.
ratio: not sure about that question sorry
last question: i have no idea what it is about because my device won't open the picture sorry
though i have answered 2 question of yours
have a great evening
Answer:
ConeSurface area:
A = πr(r + l) r = √(10² - 8²) = √36 = 6A = 3.14(6)(6 + 10) = 301.44#1A = 25π, C = ?A = πr² ⇒ 25π = πr² ⇒ r² = 25 ⇒ r = 5C = 2πr = 2*3.14*5 = 31.4#2A = 5*7 + (5 - 2)*4 + 1/2*4*(6 - (5 - 2)) = 35 + 12 + 6 = 53#10Scale factor
k = 3/4Area is a function of two dimensions, each has k applied
The ratio of areas is the k² = (3/4)² = 9/16Option C
#6Volume of prism:
V = Bh = 1/2(8*5)*6 = 120Volume of pyramid:
V = 1/3Bh = 1/3(8*5)*9 = 120Option A, same volume
#7Ratio of areas:
20/45 = 4/9Scale factor is:
k² = 4/9k = √4/9k = 2/3NEED HELP FAST!! A line has a slope of -3 and a y-intercept of 5. Write the equation of the line in slope-intercept form and explain how you would use the slope and y-intercept to graph the equation.
Answer:
y = -3x + 5
Step-by-step explanation:
To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=-3x + 5 tells us that the slope of the line is -3 and the y-intercept is at (0,5). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.
9. The ratio of boys to girls in Mrs. Reeves's class is 4 to 5. There are 20 girls in the
class.
What is the total number of students in Mrs. Reeves's class?
Answer:
boys : girls
4 : 5
multiply by 4
16 : 20
total = 36
Answer:
80
Step-by-step explanation:
There are two mystery numbers. The sum of 2 times the first number and 5 times the second number is -5. The sum of 3 times the first number and 10 times the second number is -5. What are the two numbers?
Answer:
the two numbers are -5 and 1
Step-by-step explanation:
Let x and y be the first number and second number respectively.
According to the question, we can find 2 equations:
2x + 5y = -5
3x + 10y = -5
On solving,
x = -5
y = 1
Answer:
X=-5,Y=1
Step-by-step explanation:
First equation: 2X+5Y=-5
Second equation:3X+10Y=-5
If we subtract the first from the second equation
(3X+10Y)-(2X+5Y)= 0 so, X+5Y= 0
So X= -5Y .then substitute in the second equation
So ,3(-5Y)+10Y= -5 , therefore -15Y + 10Y=-5 so, -5Y=-5 which means that Y=1
Then substitute with that in the first equation so 2X+5= -5
2X= -10 therefore X=-5
(2x-50)
(x+40)
150°
80°
(x+20)
That 80 is not the correct x
Answer: x=120
Step-by-step explanation:
(2x-50)+(x+40)+150+80+(x+20)+90= 720
4x+330= 720
4x=390
x=97.5
If the diameter of the tennis ball is 2.6 inches, what is its circumference, in inches?
Answer:
8.164
Step-by-step explanation:
The circumference of the ball is 8.164 inches.
Calculation of the circumference:
Since the diameter of the tennis ball is 2.6 inches
So here the radius should be half i.e. 1.3 inches
Now we know that
Circumference = [tex]2\pi r\\\\[/tex]
= 2(3.14)(1.3)
= 8.164 inches
Therefore, we can conclude that The circumference of the ball is 8.164 inches.
Learn more about circumference here: https://brainly.com/question/15673093
Evaluate 11.3v + 10.7w when v=7 and w=8
Answer:
11.3(7)+10.7(8)=79.1+85.6
=164.7
(a) All even numbers are divisible by 2.
solve for x
x- 5/3=1
Answer:
x = 8/3 or 2 2/3
Step-by-step explanation:
x - 5/3 = 1
x - 5/3 + 5/3 = x
1 + 5/3 = 8/3 or 2 2/3
x = 8/3 or 2 2/3
Answer:
x = [tex]\frac{8}{3}[/tex]
Step-by-step explanation:
Given
x - [tex]\frac{5}{3}[/tex] = 1 ( multiply through by 3 to clear the fraction )
3x - 5 = 3 ( add 5 to both sides )
3x = 8 ( divide both sides by 3 )
x = [tex]\frac{8}{3}[/tex]
which of these expressions will return the same value for PV
Answer:
C
Step-by-step explanation:
Regina wants to donate 15% of her paycheck to charity. If she receives a paycheck of $300, how much money will she donate?
i need to know what 7 3/4 x 3 5/7 is please help me
Answer: 7 3/4 x 3 5/7 is 28 11/14
Step-by-step explanation:
7 3/4 x 3 5/7
31/4 x 26/7
806/28
403/14 or 28 11/14
Answer:
44 2/7
Step-by-step explanation:
Turn into improper fractions
31/4*40/7
Cross Multiply (4 and 40)
31/1*10/7
Now multiply
310/7
Simplify
44 2/7
Hope this helps!!!
Have a great day!!!!
Help pls for brainlest and extra points i need done soon
Answer:
5/6= 10/12
12/100<10/12
can u PLEASE stop ignoring me i really do need help): try#7263738 of trying to get help lol
Answer:
SSS for the top one
SSS for the second one
Step-by-step explanation:
Can someone help me
Help me with this!!!
Answer:
it is 300 i think
300.
The midpoint is 300 because the distance from the 2 points is 100 so 300.
Maria bot a jacket that was on sale for 14.40 after a discount of 20%. What is the oringal price?
Answer:
17.28
Step-by-step explanation:
20%/ 14.40= 2.88
2.88+14.40=17.28
Answer:
$17.28
Step-by-step explanation:
14.40 x 20% (0.20) = 2.88
14.40 + 2.88 = 17.28
Please help meeeee I will mark brainliest
Answer:
It's y-x= -4
Step-by-step explanation:
I drew the graph and figured out the points. Hope this helps.
I need help on this right now please help ASAP!!!
Answer:
C would be your answer
Step-by-step explanation:
3
Discuss TWO ways in which some cultural views that ex
a relationship negatively.
.4
Compare TWO ways in which destructive relationships ir
well-being as opposed to constructive relationships.
1.5
Recommend TWO ways in which women and children ca
protected from discrimination and violence.
1.6
Read the statement below and answer the question that
"Only 52 per cent of women married or in a un
make their own decisions about sexual relations
Answer:
There are as many definitions of empire as there have been empires, but some pretty familiar elements appear in most of them. It starts with working on our “control issues”.
The two ways in which some cultural views may negatively affect a relationship are:
The notion that females should be domesticated and submissive has made them to be sometimes inferior in relationships.The view of male partners as a totalitarian leader (head) makes them to develop excessive ego and pride in relationships.What is a relationship?A relationship refers to a continuous and often committed interaction (association) that typically exist between two (2) or more people, which may either be platonic, romantic (intimate), negative, or positive.
In Sociology, there are four (4) main types of relationships and these include the following:
Family relationshipsRomantic (intimate) relationshipsFriendshipsAcquaintanceshipsIn conclusion, it is evident that some cultural views or perceptions may have a negative impact on a relationship.
Read more on relationships here: https://brainly.com/question/25862883
Ms. Jackson bought a new car. It cost $9,360. She paid 10% As a down payment. How much was her down payment?
Answer:
$936
Step-by-step explanation:
10% is just divided by 10 so 9360 divided by 10 is 936
what are two factors of 12 whose sum is 7
Answer:
Well it will be 7+5=12 and 6+6=12
Step-by-step explanation:
The two factors of 12 whose sum is 7 are 4, 3.
What is meaning of factors ?Those numbers which can completely divide a number such that the remainder is zero are called factors of the number they divide.
The number given is
12
The factors of 12 are 1, 2, 3, 4, 6, 12.
The two factors of 12 whose sum is 7 are 4, 3
4+3 = 7
Therefore ,The two factors of 12 whose sum is 7 are 4, 3.
To know more about Factors
https://brainly.com/question/24182713
#SPJ2
Which of the following are the sines for the angles of this triangle? Select all that apply.
Answer:
Answer attached
Step-by-step explanation:
A designer decides to create a larger scale model of a smart phone so that his team can work more easily on the design. The length of the screen of his model is 60 centimeters, which is 2.5 times longer than it is wide. The designer asked his team to build the screen of the actual phone with a width of 6 centimeters. What is the scale factor of the model phone to the actual phone?
Answer:
The length of the model is 250% of the width and is 60 centimeters, and the width of the actual phone is 6 so it has a scale factor of 4:1.
Hope this helps!
1. 4(2x + 3) = 36
Thanks please help with this
Answer: x=3
Step-by-step explanation: Hope this help :D
Answer:
x=3
Step-by-step explanation:
4(2x+3)=36
8x+12=36
8x=24
x=3
What values of x solve x 2 - 4x + 3
Answer:
x=1 and x=3
Step-by-step explanation:
When you factor it you get (x-1) and (x-3) then you subtract the 1 and 3 to the other side which is why the answer is positive.
Answer:
x = 1, x = 3
Step-by-step explanation:
Equate the expression to zero, that is
x² - 4x + 3 = 0 ← in standard form
(x - 1)(x - 3) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
x - 3 = 0 ⇒ x = 3
Geometry question, help ya girl out
Answer:
A=36 a means area
Step-by-step explanation:
A=a+b/2
h=6+12/2
times 4=36
Answer:
=36cm^2
Step-by-step explanation:
6-12=6 (total cm of the bases for triangle B and C)
6/2= 3 (base of B and C trialngleis 3 )
Triangle formula: bh 1/2
(base)b= 3cm
height(h)=4
Formula: (3)(4) 1/2
=12 1/2
=6cm^2
^ area of 1 triangle
There are 2, so
6*2=12cm^2 (area of triangles )
Area of rectangle: L*W
4*6=24cm^2
Total area of trapezoid
=24cm^2+12cm^2
=36cm^2
A fitness trainer sets the incline on a
treadmill to 7º. The walking surface is 5
feet (60 inches) long. Approximately how
many inches did the trainer raise the
end of the treadmill from the floor?
Answer:
Step-by-step explanation:
sin Ф equal the opposite leg of the triangle dividend by the hypotenuse
sin Ф = opp / hyp
the problem gave you the Ф (the angle 7°)
and the length of the hypotenuse (the walking surface 60 inches)
You want to use the inches since the question wants to know how many inches off the floor is the end of the walking surface
sin 7 = opp / 60 solve for opp
60 × sin(7) = opp use your calculator, I don't have one handy
HELLLLLP MEEEE IDENTIFY THE HEIGHT
Answer:
11
Step-by-step explanation:
The height is 11 inches.