Step-by-step explanation:
The initial level is 30.
let the upward travel be +X and downward travel be -Y.
so the expression for her current level be ,
30+X-Y = 30+6-14= 22.
22 is her current level.
A quadratic equation has zero real number solutions. Which could be the discriminant value associated with this equation?
a) -5
b) 0
c) 1
d) 6
Answer: c
Step-by-step explanation:
Drag numbers to show which one is closer to -1 and -1/4 on the number line
Answer:
-0.82 is closest to -1, and -0.28 is closest to -1/4
Step-by-step explanation:
you can start by converting all of them to a fraction or decimal:
-0.28 = -28/100 = -7/25 = -14/50
-0.82 = -82/100 = -41/50
-1/5 = -10/50
-4/5 = -40/50
-1 = -50/50
-1/4 = -12.5/50
Question 6
2 pts
The data shows the speed, in miles per hour, of motorists on a stretch of
road.
42, 35, 44, 31, 47, 41, 36, 34, 39, 18, 37, 32, 37, 33, 43, 41, 44, 47, 46
18 miles per hour is an outlier.
0 47 miles per hour is an outlier.
The outlier decreases the mean speed.
The outlier decreases the median speed.
Answer:
18 miles per hour is an outlier
the outlier decreases the mean speed
Step-by-step explanation:
the low number of 18 is way different from the other numbers being in the 30's and 40's
this 18 will bring the mean of all the numbers own because it is a smaller number.
Answer:
Step-by-step explanation:
Mean:44
Median:31
Mode:47
Deepak sold his T.V set for ₹ 14100,losing 6%. For how much did he purchase it?
Answer:
₹14,946
Step-by-step explanation:
Tv s old for ₹14100
Deepak loses 6%
Purchase cost = Selling price + Loss cost
Purchase cost = ₹14100 + ₹14100(6%)
Purchase cost = ₹14100 + ₹846
Purchase cost = ₹14,946
Maria sells painting in a art gallery. She earns $375 each week plus a commission of 2.5% of her swelled. What is the minimum amount of sales she must have this week to earn at lease $500.
Answer:
5000.00
Step-by Step
500.00-375.00 = 125.00
5000 x 2.5% = 125.00
375.00 + 125.00 = 500.00
solve the quadratic y = −x^2 + 4x + 1 with steps plz!
Answer:
x = -0.24 or 3.73
Step-by-step explanation:
[tex]\frac{-b + \sqrt{b^{2} -4ac } }{2a}[/tex] (There's supposed to be a ± between '-b' and the square root)
[tex]x^{2}[/tex] + 4x + 1 ( [tex]ax^{2} + bx + c[/tex] )
a = -1 ( there's no number before [tex]x^{2}[/tex] so its 1 )
b = 4
c = 1
Substitute into the quadratic equation.
[tex]\frac{-4 + \sqrt{4^{2} -4x1x-1 } }{2x-1}[/tex] ( the [tex]x[/tex] is just the multiplication sign )
= [tex]\frac{-4 + \sqrt{{16} +4 } }{-2}[/tex]
[tex]\frac{-4 + \sqrt{{20} } }{-2}[/tex] = -0.24 [OR] [tex]\frac{-4 - \sqrt{{20} } }{-2}[/tex] = 3.73
( The answers are to 2 decimal places )
Please help!! I will give brainliest
I NNNNNEDDDDD HHHHEEELLLLLPPPPPPPP
Answer:
50
Step-by-step explanation:
as triangle is =180
then , 30 +100 +x =180
130 +x = 180
x= 180-130
=50
Answer:
50 degrees
Step-by-step explanation:
A triangle is 180 degrees and there is already a 30 and 100.
180-30-100=50.
Hope this helps =]
Simplify the radical expression.
2√10 . 3√12
A.12√60
B.5√120
C.12√30
D.6√120
Simplify the radical expression.
√14q . 2√4q
A.3√56q
B.4q√14
C.2√56q^2
D.4√14q^2
Simplify the radical expression by rationalizing the denominator.
4/√11
A.11√4
B.4√11
C.4√11/11
D.√121/11
Lucy earned $24 for tutoring 2 students for 1 hour each. How much can she earn for tutoring 15 students for 1 hour each?
Answer:
Step-by-step explanation:
15(24/2)=$180
Find the surface area. Answer without units.
18 cm
11 cm
9cm
Please help hurry
Answer:
306
Step-by-step explanation:
v = 1/3bh
2×(18×11 + 18×9 + 11×9) / 3 = 918/3
= 306
hope this helps, mark brainliest if it did luv gl !
The circumference of a circle is 24π in. What is the area, in square inches? Express your answer in terms of \piπ.
Answer:
45.84
Step-by-step explanation:
hope that helps
The area of the circle is equal to 144π square inches.
What is the area of the circle?The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called the area of the circle.
Given that the circumference of a circle is 24π in. The area of the circle is calculated by the formula given below,
Area of circle = πr²
Circumference of the circle = 24π
2πr = 24π
r = 12
The area of the circle will be calculated as:-
Area = πr²
Area = π x ( 12 )²
Area = 144π square inches.
Hence, the area is 144π square inches.
To know more about an area follow
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HELPP with part (b) will make brainlest !!!!!
Answer:
I dont no the answer
Step-by-step explanation:
but maybe try the app socratic
What is the equation of the line that passes through the point (-4, -6) and has a
slope of -1/2?
Answer:
y=(-1/2)x-8
Step-by-step explanation:
Answer:
y=-1/2x - 8
Use desmos to help with these problems
AB
Round your answer to the nearest hundredth.
С
4
A
25°
?
B
Answer:
AB ≈ 4.41
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos25° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{4}{AB}[/tex] ( multiply both sides by AB )
AB × cos25° = 4 ( divide both sides by cos25° )
AB = [tex]\frac{4}{cos25}[/tex] ≈ 4.41 ( to the nearest hundredth )
PLS HELP ME I WILL GIVE YOU BRAINLIEST!
Answer:
The answer is 4) 69.08 m
Step-by-step explanation:
PLEASE ANSWER FAST!
A water tank contains exactly 1,000 gallons. A pump fills the remainder of the tank using
a logistic function. If the volume of the tank is 15,000 gallons and the pump fills the tank at a rate of 10.4% per minute, explain how to find the value of a for the logistic function that describes this scenario.
Answer: V ( t ) = 1 + 1 4 e − 0 . 1 0 4 t 1 5 , 0 0 0
The required value for the logistic function describing the scenario of the water tank being filled at a rate of 10.4% per minute.
What is the logistic function?The logistic function has the form:
[tex]f(x) = L / (1 + a \times e^{(-kx)})[/tex]
Where:
f(x) is the volume of the tank at time x
L is the maximum volume the tank can hold
a is a constant that determines the growth rate of the function
k is a constant that determines the rate at which the growth slows down as the tank approaches the maximum volume
In this case, the maximum volume of the tank is 15,000 gallons, so L = 15,000.
The pump fills the tank at a rate of 10.4% per minute, so k = 0.104.
To find the value of a, we need to solve the logistic equation for a given the values of f(x), L, and k.
We can rearrange the logistic equation to solve for a:
[tex]a = (1 / f(x)) - (1 / L) \times e^{(kx)}[/tex]
Substituting the known values into this equation, we get:
[tex]a = (1 / 1,000) - (1 / 15,000) \times e^{(0.104x)}[/tex]
This equation can be used to solve for the value of a for any given value of x (time). For example, if we want to know the value of an after 10 minutes, we can substitute x = 10 into the equation to get:
[tex]a = (1 / 1,000) - (1 / 15,000) \times e^{(1.04)}[/tex]
This gives us the value of a for the logistic function that describes the scenario of the water tank being filled at a rate of 10.4% per minute.
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the relationship between a and b if a + b = 0
Answer:
a=-b
Step-by-step explanation:
a+b=0a=-bOr,
b=-a
Jacob earns $300 per week plus $50 for every car he sells. How many cars will he need to sell this week to earn a total of $700
Answer:
He would sell 14 cars.
Step-by-step explanation:
Hope this helps
Solve for x please and thank you
9514 1404 393
Answer:
x = 7
Step-by-step explanation:
The product of segment lengths is the same for the two chords.
9(21) = x(27)
x = 189/27 . . . . . divide by 27
x = 7
Solve the question.
Q – 26 = –53
Answer:
Q=-27
Step-by-step explanation:
Vgvhgvhgvugvugvhjbjhbjhbjh
Answer:
d or c is the answer of the question
The radius of a circle measures 5 milometers . What is the circumference of the circle? Use 3.14 for pi , and do not round your answer. Be sure to include the correct unit in your answer.
Answer:
circumference = 31.4 milometers
Step-by-step explanation:
circumference = 5(2)(π)
circumference = 31.4 milometers
Am not the smartest can someone help me.
Answer:
4 7/10
Step-by-step explanation:
Answer:
4 7/10
Step-by-step explanation:
Convirt all the fractions into 1/10ths. Makes addition easy. Hope this helps
Which equation shows how the properties of numbers extend to negative whole numbers by the Associative Property
of Addition?
A)
-2 + 4 = 4 + (-2)
B)
-2(4) = 4(-2)
(2 + 4) + 3 = -2 + (4 + 3)
D)
-2(4 + 3) = (-2 x 4) + (-2 x 3)
Answer:
A is correct answer
ok
now make me brainliest
Please help me i will give you brainliest *image
Identifying and Solving Proportions
PLS ANY HELP!! thank you to whoever helps with question 6 <3
Answer:
Inez ran the mile in 5 minutes and 20 seconds
Great had the fastest time.
Her mile was faster by 20 seconds.
Step-by-step explanation:
Find the value of each variable. If your answer is not an integer, write it in simplest radical form with the denominator
rationalized
y=
and z=
Answer:
7
Step-by-step explanation:
First you have to fined the unit rate
1,500/25= 60
Now your gonna do
300x60= 18,00
Given a set of attributes, can you make one triangle, no triangles, or many triangles?
jo says, "the attributes of my triangle are sides that are 3cm and 9cm long. I can make only one triangle because I have to connect the ends of my two sides."
do you agree or disagree? why?
Answer:
All you have to do is use the Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side. If this is true for all three combinations of added side lengths, then you will have a triangle.
I need help and show work