Answer:
35.34
Step-by-step explanation:
The formula for arc length is 2rФπ/360
2(15)(135)=4050
4050/360·π=35.34
the amount of gasoline used by a car varies jointly as the distance travelled and the square root of the speed.Suppose a car used 25 liters on a 100 km trip at 100kph,about how many liters will it use on 1000 km trip at 64 kph?
Answer:
200 litres
Step-by-step explanation:
let g be gasoline used, d the distance travelled and s the speed, then the equation relating the quantities is
g = kd[tex]\sqrt{s}[/tex] ← k is the constant of variation
To find k use g = 25, d = 100 and s = 100, then
25 = k × 100 × [tex]\sqrt{100}[/tex] = k × 100 × 10 = 1000k ( divide both sides by 1000 )
0.025 = k
g = 0.025d[tex]\sqrt{s}[/tex] ← equation of variation
When d = 1000 and s = 64, then
g = 0.025 × 1000 × [tex]\sqrt{64}[/tex] = 0.025 × 1000 × 8 = 200
What kind of sequence is this? –38, –44, –50, –56
Answer:
-6n-32
Step-by-step explanation:
Answer:
The answer is a arithmetic. HOPE THIS HELPED !!!!
Step-by-step explanation:
-38 is your starting number and if you add -6 it equals -44. And -44 plus -6 equals -50, and so on. Your welcome !
Write an equation in slope-intercept form for a line that passes through points (-1, 2) and (5, -10)
What does it mean for a point to be a solution to a linear equation?
For example, if I say, "(2,5) is a solution to the equation (y=2x+3)," how could you check my claim?
Answer:
In your equation y=2x+3 and you used 2 [from your point (2,5) ] as the value of x, then y=2(2)+3=7.
now if you plotted this, that point would be (2,7), not (2,5).
So (2,5) is not the solution.
(2, 5) is not a solution of the linear equation [tex]y = 2\cdot x + 3[/tex].
Let be linear equation [tex]y = 2\cdot x + 3[/tex], if we know that [tex](x,y) = (2, 5)[/tex] and we need to check is [tex]2\cdot x + 3 = 5[/tex] by algebraic means, that is, we solve for [tex]x[/tex]:
[tex]2\cdot x + 3 = 5[/tex]
[tex]2\cdot x = 2[/tex]
[tex]x = 1[/tex]
Hence, we conclude that (2, 5) is not a solution of the linear equation [tex]y = 2\cdot x + 3[/tex].
We kindly invite to check this question on linear functions: https://brainly.com/question/17088086
(9x + 7) + (x + 3)
I really don't know.
Answer:
10x + 10
Step-by-step explanation:
Thank me later
Solve 3[-x + (2 x + 1)] = x-1.
X=
DONE
Answer:
x=−2
Step-by-step explanation:
Simplify both sides of the equation.
3(−x+2x+1)=x−1
Distribute
(3)(−x)+(3)(2x)+(3)(1)=x+−1
−3x+6x+3=x+−1
Combine Like Terms
(−3x+6x)+(3)=x−1
3x+3=x−1
3x+3=x−1
Subtract x from both sides.
3x+3−x=x−1−x
2x+3=−1
Subtract 3 from both sides.
2x+3−3=−1−3
2x=−4
Divide both sides by 2.
2x/2=−4/2
x=-2
Find the amount to tip on a $67.99 dinner, when you tip 20%. Round to the nearest cent.
Answer:
$13.60 for tip
$81.59 for total meal cost
Step-by-step explanation:
Meal = $67.99
tip is 20% so 0.20
67.99*0.20=13.60 tip
use the distributive property to find two expressions that are equivalent to 7(3x - 4)
please help me i cant do this anymore, i'm having a panic attack and this is all due in 4 hours
The old bag of marbles contains 4 blue and 3 red marbles. If you were to double the number of red and blue marbles to create a NEW bag, would the chance of pulling out a blue marble be the same as pulling a blue marble from the old bag? (this is for math class by the way-)
Answer:
The chance will be the same (4/7)
Step-by-step explanation:
Old bag
p(blue)=4/7
New bag
p(blue)=8/14=4/7
The chance will be the same (4/7) since both the red and the blue marbles are doubled at the same time implying that the ration of red to blue still remails the same.
I hope the explanation is clear. If so rate brainliest please
PLEASE HELP!! WILL GIVE BRAIN AND FIVE STARS!!
20.) GH = FE
21.) <JGH = <FEK
Hope it helps ⭐⭐⭐Factoring.
The answer is supposed to look like this.
EXAMPLE:
5x(6x+2)(6x-2)
Step-by-step explanation:
2y×(5-4y)×(5+4y) here you go now please help me if you can
There is 2/3 of a cake left that 3 friends would like to share. How much cake would each friend get?
Solve each expressions for u and match them with their appropriate value.
Answer:
u=1
u=2
u=3
u=4
Step-by-step explanation:
trust me i am in 8th grade
I need help i don't understand
Answer:
50%
Step-by-step explanation:
50% aaaaaa.................
Help PLEASE!!!!!!!!!
PLEASE HELP!!! DONT IGNORE ME!!!
like right now!
answer this seriously and that will make you deserve this points that i've given just please someone answer this!!! please!! answer it seriously!! or ill s*** you ! HELP!! need it ! (ᗒᗣᗕ)՞
ANSWER IT ALL
THANK YOU❤︎
An athlete eats 55 grams of protein per day while training. How much is this in milligrams?
Answer:
55,000 milligrams
Step-by-step explanation:
........
Answer:
55,000 milligrams (mg) is equal to 55 grams (g)
Step-by-step explanation:
(55 g/1 )* (1000 mg/1 g)
Multiply the top to get 55,000 and the bottom to get 1.
55,000/1
The gram units cancel out, leaving you with milligrams.
55,000 mg
Which point on the coordinate plane is a reflection of point A across the y-axis
Expression equivalent to (3d^4)^2
F(x)=bx^2+32 For the function f defined above, b is a constant and f(2)=40. What is the value of f(-2)?
Answer:
f(-2) = 0
Step-by-step explanation:
Given that:
f(x) = bx^2 + 32
f(2) = b(2)^2 + 32
f(2) = 4b + 32
f(2) = 4b = -32
f(2) = b = -32/4
f(2) = b = -8
Thus;
f(-2) = -8(-2)^2 + 32
f(-2) = -8(4) + 32
f(-2) = -32 + 32
f(-2) = 0
Answer:C
Step-by-step explanation:
yessir
which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for
the equation 3x-5--2x+10?
x = 5
-5=x
-15 = -5x
-5x = 15
Write in Slope Intercept form
Answer:
its the first choice
Step-by-step explanation:
Answer:
y= -3/5x +5
Step-by-step explanation:
Step one - find where the line is intercepting. In your case this is at positive 1.
Next step is to check the change of the slope - directio. The line goes up to the positive Y access and to the left of the negative X access.
That leads to a negative slope.
Respectavley the only posible answer on this question is
y= -3/5x +5
Good luck.
FB: sharp4math
3(-4b+1) = 15
pls help asap
Answer:
b = -1
Step-by-step explanation:
3(-4b+1) = 15
multiply: -12b + 3 = 15
subtract 3 from 15: -12b = 12
divide: b = -1
When Laura was a store manager at a movie store, she made $500 a week. Ten years later, as a clothing store manager, she made $800 a week. What was the percent of change? Show your work and explain your answer.
PLEEASE HELP ME I WILL DO ANYTHING PLEASE HELP ME
Answer:
B
Step-by-step explanation:
I hope this helps :)
Answer:
Its B
Step-by-step explanation:
Tell me if I am wrong
Hope this helps
Each statement describes a transformation of the graph of Rx) = x. Which statement correctly describes the graph of g(x) if g(x) = RX) - 3?
OA. It is the graph of fx) translated 3 units to the left.
OB. It is the graph of f(x) translated 3 units down.
OC.
It is the graph of fx) translated 3 units up.
OD. It is the graph of f(x) where the slope is decreased by 3.
Answer:
It is the graph of f(x) translated 3 units down.
Step-by-step explanation:
The graph of r(x) = x was translated 3 units down to form g(x) = r(x) - 3.
TransformationTransformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, reflection and dilation.
Translation is the movement of a point either up, left, right or down.
The graph of r(x) = x was translated 3 units down to form g(x) = r(x) - 3.
Find out more on transformation at: https://brainly.com/question/1548871
I will give brainliest!!
Find the area for the given circle. Round to the nearest tenth.
113.0 ft^2
124.8 ft^2
37.7 ft^2
452.2 ft^2
Answer:
The answer is 113.0 ft^2
Step-by-step explanation:
To find the area you do pi times the radius squared, so that would be pi times 36. which equals 113.0 ft^2.
The area of a given circle is 113.0 square feet. Therefore, option A is the correct answer.
What is area of a circle?The area of a circle is the space occupied by the circle in a two-dimensional plane. Alternatively, the space occupied within the boundary/circumference of a circle is called the area of the circle. The formula for the area of a circle is A = πr², where r is the radius of the circle.
Given that, the diameter of circle is 12 feet.
Here, radius = 12/2
= 6 feet
Now, area of a circle = 3.14×6²
= 3.14×36
= 113.0 square feet
Therefore, option A is the correct answer.
Learn more about the area of a circle here:
brainly.com/question/28642423.
#SPJ2
Is (6, 8) a solution to y = 8/3x - 8?
Answer:
Yes it is a solution
Step-by-step explanation:
[tex] \frac{8}{3} \times 6 - 8 = \\ 16 - 8 = 8[/tex]
Answer:
Is (6, 8) a solution to y = 8/3x - 8?
Step-by-step explanation:
Solve Using Substitution
-9x + 6y = 18
y = -6
Answer:
the answer should be x = -6
Step-by-step explanation:
-9x + 6y = 18
-9x + 6(-6) = 18
-9x - 36 = 18
-9x - 36 + 36 = 18 + 36
-9x = 54
-9x ÷ -9 = 54 ÷ -9
x = -6
please help me will give you brainliest
Answer:
A- No
B- yes
C-yes
D- no
Step-by-step explanation:
learned about these yesterday, just depends on the x axis
