Answer:
y-7= -1/5x
Step-by-step explanation:
general formula (y-y1)= m(x-x1)
m is the slope and in this case m=-1/5
(x1, y1) is a point on thhe line in this case is (0, 7) because f(x)=y
substitute your given in the equation
(y-7) = -1/5(x-0)
y-7= -1/5x
What is the percent of change from 4,000 to 5,000?
(5000 - 4000)/4000 x 100 = (1000/4000) x 100 = 25%
hope this help! ^^
PLEASE ANSWER ILL GIVE BRANLIEST
Answer:
angle A is congruent to angle R
Step-by-step explanation:
when it gets rotated counterclockwise around point X that is how the triangles end up matching up
Answer:
The answer is 1. ∠A ≅ ∠R
Step-by-step explaation:
Looking at the triangles when they're in their alphabetical order, ΔABC and ΔRST, since they are congruent, that means that if you were to pick an angle in one triangle, it would be equal to the angle in the same place of the other triangle. So if we were to take the first letter from ΔABC it'd be A, and the first letter in ΔRST is R, so that means angles ∠A and ∠R should be congruent.
Solve the inequality: 10x<2x+12
Answer:
10x<2x+12
-2x -2x
8x<12
-- --
8 8
x<1.5
What fraction of an hour is 26 minutes give your answer in its simplest form
Answer:
13/30
Step-by-step explanation:
26 / 60 because there's 60 mins in an hour
and you can divide both the numerator and the denominator by 2 to get:
13/30, which is the simplest form.
i don’t know how to do this
Answer:
A2: 55
A1: 99-55+x:180
X:26
Please answer the blanks and I will mark you brainlist if you answer it and show it why
Answer:
2 dollars
72 dollars
Step-by-step explanation:
im not completely sure
Answer:
Arianna paid $2.75 for each photo coaster. If she purchased three dozen photo coasters, how much did she spend? $99.00
Step-by-step explanation:
yes she do break even because let me show you a expression now take a number line and then you start at -16 right and then you go down the number line and then this is how it go -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 and i just answer your Q there you go -16+16=0
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If AB ≅ DE , BC = EF, and ∠ACB ≅ ∠DFE, then ΔABC ≅ ΔDEF.
WILL MARK BRAINLIEST
PLZ ASAP
Answer:
Cannot be determined
Step-by-step explanation:
It can't be determined because AB=DE, BC=EF, and <ACB=<DFE not <DEF which makes the rule SSA which doesn't prove congruency.
The measure of angle D is 47 degrees and the measure of angle C is 57 degrees. What is the
measure of angle A?
47
57
76
104
Answer:
D. 104º
Step-by-step explanation:
So the inside of a triangle is equal to 180º and we already know two of the angles.
D = 47º
C = 57º
47 + 57 = 104
To solve angles A and B, we know that a straight line is 180º and we can figure out the angle of B because now all we have to do is subtract 104 from 180.
180 - 104 = 76, B = 76º
Because we know that a straight line is 180º and we already have the measure of angle B, all we have to do now is subtract 76 from 180.
180 - 76 = 104º
A cone’s height and its radius are each equal to half the radius of a sphere. How many of these cones would it take to equal the volume of the sphere?
Answer:
the answer is 32
Answer:
Wouldn't it be 2?
Step-by-step explanation:
Given the equation y = (1/4)x - 5, what is the zero? Only write the number please
Answer:
so the zero is (20,0) but just so you know you can go to desmos and it will answer all of your graphing questions.
Step-by-step explanation:
can you please give me brainliest? I would appreciate it soooo much! I just need one more!
PLEASE HELP!! (Give reasonable answer)
Answer: B
Step-by-step explanation: You just multiplying 25 with 10 and w which can be simplified as 24(w+10) and adding with the 13.5 x 10 and 13.5 x w, which can be simplified as 13.5(10+w)
PLEASE, I NEED HELP ASAP!!!!!!!!
What is the equation of the line that goes through A(3,2) and B(4,1)?
a) What is the slope?
b) What is the y intercept?
c) Use a and b to write the equation
Answer:
the slope is -1
the y-intercept is 5
equation: -x+5
Step-by-step explanation:
rise/run = slope
the point that goes through the y-axis is ur y-intercept
PLEASE HELP WILL MARK BRAINLIEST FOR GOOD AND CORRECT ANSWERS :)
===================================================================
Try to solve the following quadratic equations using the factoring method. If it doesn't work, use the quadratic formula. Sketch the parabola.
1) y = x^2 + 3x + 1
2) y = x^2 + 4x - 8
3) y= x^2 - 5x - 12
Answer:
Step-by-step explanation:
1) x² + 3x + 1 = 0
a = 1 b = 3 c = 1
=> Δ = b² - 4ac = 9 - 4.1.1 = 5 > 0
so the quadratic equation have 2 solutions
=> x = [tex]\frac{-3+\sqrt{5} }{4}[/tex]
or x = [tex]\frac{-3-\sqrt{5} }{4}[/tex]
2) x² + 4x - 8 = 0
a = 1 b' = 2 c = -8
Δ' = b'² - ac = 4 - 1.(-8) = 12 > 0
so the quadratic equation have 2 solutions
=> x = [tex]\frac{-2+\sqrt{12} }{1}=-2+\sqrt{12}[/tex]
or x = [tex]-2-\sqrt{12}[/tex]
3) x² - 5x -12 = 0
a = 1 b = -5 c = -12
Δ = b² - 4ac = 25 - 4.1.(-12) = 25 + 48 = 73 > 0
so the quadratic equation have 2 solutions
=> x = [tex]\frac{5+\sqrt{73} }{2}[/tex]
or x = [tex]\frac{5-\sqrt{73} }{2}[/tex]
Please help me---------------------------
Answer:
Using the graph, just look at the exact spot where the lines are intersecting and that point is the solution.
The solution is: (1.2, -1.6)
Step-by-step explanation:
You can also test this by plugging the values of the point into both equations.
Please helpp middle school math
suppose 4<a<7. find all the possible values of 15-2a
9514 1404 393
Answer:
1 < 15 -2a < 7
Step-by-step explanation:
There are a couple of ways you can do this.
1) Put the minimum and maximum values of a into the expression to see what its corresponding values are:
15-2a for a=4:
15-2(4) = 7
15-2a for a=7:
15-2(7) = 1
Then ...
1 < 15-2a < 7
__
2) Solve for a in terms of the value of 15-2a, then impose the limits on a.
x = 15 -2a
2a = 15 -x
a = (15 -x)/2
Now, impose the given limits:
4 < (15 -x)/2 < 7
8 < 15 -x < 14 . . . multiply by 2
-7 < -x < -1 . . . . . . subtract 15
7 > x > 1 . . . . . . . . multiply by -1
1 < 15-2a < 7 . . . . . use x=15-2a
_____
The vertical extent of the attached graph is the range of possible values of 15-2a. It goes from 1 to 7.
Write two numbers that multiply to the value on top and add to value on bottom.
3. Which of the following equations represents a proportional relationship?
Answer:
The equation for the proportional relationship is y = 2.8x. If the relationship between two quantities is a proportional relationship, this relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate.
Step-by-step explanation:
Answer:
Where's the equation
i need help! ASAP!:(
Answer:
18(40/360) + 9( 140/360) -3(90/360) -7(90/360)
=2 + 3.5 - 0.75 - 1.75
= $3
Which is correctly written in standard form of y=-6/7x+12
Answer:
6x + 7y +84
Step-by-step explanation:
The linear equation y = -(6/7) x + 12 in the standard form will be 6x + 7y - 84 = 0.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation in standard form is given as,
ax + by + c = 0
Where -a/b is the slope of the line and c/b is the y-intercept of the line.
The linear equation in slope-intercept form is given below.
y = -(6/7)x + 12
Convert the equation into a standard form. Then we have
y = -(6/7)x + 12
y = (-6x + 84) / 7
7y = - 6x + 84
6x + 7y - 84 = 0
The linear equation y = -(6/7) x + 12 in the standard form will be 6x + 7y - 84 = 0.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ2
TRUE OR FALSE
The x-coordinate of the point at which the graph of an equation crosses the x-axis is a(n) x-intercept.
Answer:
TRUE
Step-by-step explanation:
GIVE ME BRAINLIEST
HELPPPP.
Suppose a bird is 500 feet above the ground. It descends at a steady rate. After 10 seconds, it is 250 feet above the ground.
a) Write an equation that gives the height of the bird as a function of time. Be sure to define your variables!
b) After how many seconds will the bird land on the ground?
Answer:
500-10x=250
x=how much the bird descended in a second
the bird will land on the ground in another 10 seconds.
Step-by-step explanation:
the bird will land on the ground in 10 seconds since it descended 250 ft in 10 seconds so that is 25 ft per second. then do 250/25 and you get 10. that is how you know the bird will land on the ground in 10 seconds.
Answer:
a) [tex]h(t)=500-25t[/tex]
b) [tex]t=20[/tex]
Step-by-step explanation:
a)
Let [tex]h[/tex] = height above ground
Let [tex]t[/tex] = time
Because the bird descended down to 250 feet in 10 seconds with a steady rate, that means it descends 25 feet per second.
∴ [tex]h(t) = 500-25t[/tex]
b)
To find the time it takes until the bird reaches the ground, [tex]h[/tex] must equal [tex]0[/tex]:
[tex]0=500-25t[/tex]
[tex]25t=500[/tex]
[tex]t=20[/tex]
∴ It takes 20 seconds for the bird to reach the ground.
Question 2
1 pts
A dilation centered at the origin with a scale factor of 2 can be denoted
with the following notation: D2 (1, y) = (2x, 2y). Find D4 for point
A (-2, 3).
Given:
A dilation centered at the origin with a scale factor of 2 can be denoted
with the following notation:
[tex]D_2(x,y)=(2x,2y)[/tex].
To find:
The [tex]D_4[/tex] for point A (-2, 3).
Solution:
If [tex]D_2(x,y)=(2x,2y)[/tex], then
[tex]D_4(x,y)=(4x,4y)[/tex]
Substitute x=-2 and y=3 in the above rule to find [tex]D_4[/tex] for point A (-2, 3).
[tex]D_4(-2,3)=(4(-2),4(3))[/tex]
[tex]D_4(-2,3)=(-8,12)[/tex]
Therefore, [tex]D_4[/tex] for point A (-2, 3) is (-8,12).
help if you cannn please
Answer:
I want to say it is 8,000
Step-by-step explanation:
go to 80 degrees and go up to the next point and that is on 8,000
Answer:
8,300
Step-by-step explanation:
If you continue the graph to 80 degrees, your average will end up at 8,300. You can tell because it will be above 8,000 but not close to 9,000 so it has to be 8,300.
which equation represents the graphed function?
• y=4x - 2
• y=-4x-2
•y= 1/4x-2
•y=-1/4x-2
Answer:
y= 1/4x-2
Step-by-step explanation:
Let's use the two points we have to find the equation.
y = mx + b
-2 = m(0) + b
So b = -2
-1 = 4m - 2
4m = 1
m = 1/4
Please help:) and please only answer if you really know the answer
Apples cost $0.45 per apple or $1.29 for 3. Which is the better buy?
Answer:
3 apples for 1.29
Step-by-step explanation:
If you divide 1.29 by 3, you will get 0.43 which means each apple then costs 0.43 each. This is less than 0.45 so it is the better value.
Answer:
$1.29 for 3
Step-by-step explanation:
The reason is that $0.45 per apple means for every apple, you have to pay $0.45. That eventually is going to start to add up. $1.29 for 3 means that you are paying $0.43 for 3, which means that you are saving money.
19. If the triangle below is equilateral, write an
expression using parentheses to show the
perimeter of the triangle. Then, give the
simplified expression.
4x - 3
Answer:
Perimeter of the triangle = (12x - 9)
Step-by-step explanation:
Property of an equilateral triangle:
- All sides are equal in measure.
- All interior angles are equal.
Since, measure of one side of the triangle = (4x - 3)
And perimeter of a polygon = Sum of all sides of the polygon
Therefore, perimeter of the given triangle = (4x - 3) + (4x - 3) + (4x - 3)
= (4x + 4x + 4x) - (3 + 3 + 3)
= (12x - 9)
Perimeter of the triangle = (12x - 9)
hey does anyone get this?? THANK YOU (MARKING BRAINLIEST)
Answer:
i. - 3a² + 2ab + b²
ii. 2c² + - 2cd + - 4d²
Step-by-step explanation:
i. First things first, you remove the parenthesis in both expressions to look like this:
a² − 3ab + 2b² - 4a² + 5ab − b²
Next, you add like terms.
(a² + - 4a²) + (- 3ab² + 5ab) + (2b² + - b²)
After adding these like terms, your answer would be:
- 3a² + 2ab + b²
ii. This one is pretty simply. But first, lets simplify by first removing the parenthesis to look like this:
c² - 6d² + c² - 2cd + 2d²
Then, combine like terms
(c² + c²) + (- 2cd) + (-6cd² + 2d²)
After that, your sum would be:
2c² + - 2cd + - 4d²
Hope this helps!
Answer:
see explanation
Step-by-step explanation:
i
(a² - 3ab + 2b²) + (- 4a² + 5ab - b²) ← remove parenthesis
= a² - 3ab + 2b² - 4a² + 5ab - b² ← collect like terms
= - 3a² + 2ab + b²
----------------------------------
ii
(c² - 6d²) + (c² - 2cd + 2d²) ← remove parenthesis
= c² - 6d² + c² - 2cd + 2d² ← collect like terms
= 2c² - 2cd - 4d²
(3-21)-(7+6) =
subtract complex numbers
Answer:
(3-21)-(7+6) = -31
Step-by-step explanation:
3-21 = -18 - 13= -31
