Answer:
its 3.01
Step-by-step explanation:
Right on edge
The standard deviation is 2.08.
What is Standard Deviation?A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
We have the data,
X : 0 1 2 5 10
P(X) : 0.4 0.2 0.2 0.1 0.1
CF : 0.4 0.6 0.8 0.9 1
Sum of fx = 2.5
Mean = 2.5
Deviation X = -2.1 -2.3 -2.1 -2 -1.5
X² = 4.41 5.29 4.41 4 2.25
fX² = 1.764 1.058 0.882 0.4 2.225
Now, standard deviation
= √4.329/1
= 2.08
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у + 2х = 7
у = 3х – 3
What is the answer to this
A zookeeper has 858585 treats to divide evenly among 888 seals. The zookeeper divides to see how many treats to give to each seal. The zookeeper will have as few treats left as they can.
85\div8=10\text{ remainder }585÷8=10 remainder 585, divided by, 8, equals, 10, start text, space, r, e, m, a, i, n, d, e, r, space, end text, 5
Which of the following describes the remainder in this case?
Choose 1 answer:
Answer:
the anwser is B
Step-by-step explanation:
Marty's cat weighs 10 pounds. This is 24 pounds less then the weight of his dog. Write and solve a subtraction equation to find the weight of Marty's dog.
Answer:
34
Step-by-step explanation:
The dog weighs 34 pounds
34-24=10
24+10=34
In quadrilaterals, which of them have their diagonals bisecting each other?
Answer:
In quadrilaterals all parrallelograms which incude
Rectangle, Square, Rhoumbus and Parrallelogram have their diagnoos bisecting each other
Other than Parrallelograms Non Parrallelogram shapes like Trapezium also has its Diagnols bisectneach other
Hope it helps
HELPPPPPPPPPPPP
The function g(t) = -16t2 + vt + h represents the height of an object, g, in feet above the ground in relation to the time, t, in seconds, since the object was thrown into the air with an initial velocity of v feet per second at an initial height of h feet.
A model rocket is launched off the ground at an initial velocity of 80 feet per second.
What domain makes sense for the function in this context?
A. all positive numbers
B. 0 ≤ t ≤ 5
C. all real numbers
D. 0 ≤ t ≤ 100
Answer:
B. 0 ≤ t ≤ 5Step-by-step explanation:
The function is g(t) = -16t² + vt + h
At h = 0 and v = 80 we get the function:
g(t) = -16t² + 80tWe know g(t) can't be negative, then:
-16t² + 80t ≥0t² - 5t ≤ 0t(t - 5) ≤ 5t ≥0 and t ≤ 5, or0 ≤ t ≤ 5Correct option is B
Which is the larger fraction ?
2/13, 1/13 or 5/13*
plsssss answer i will mark as brilliant
Please I need some help correct answers only!!!!!
Hai!
I believe this would be 11.
Brainliest please?
the gcf of 23 and 46
Help plsssd Help pldddd
ok the first one
and this is the second one
Please help!!!! Maths!!!!!
Answer:
x= 2 or x= -3
Step-by-step explanation:
Bring the equations together using a common denominator (x-5) (x+7)
x-29/(x-5) (x+7)= 1
Multiply both sides by (x-5) (x+7)
x- 29= (x-5) (x+7)
x- 29= (x-5) (x+7)= x^2 + 2x - 35
-x^2 - x + 6 = 0
-(x-2)(x+3)= 0
Multiply both sides by -1
(x-2)(x+3)= 0
Split it into two equations
x-2= 0 or x+3= 0
x= 2 or x= -3
share 747 in the ratio 2:7
Answer:
Step-by-step explanation:
166:581
please help me :( i will give brainliest !
Answer:
(4w^2+180w+1800) meters^2
Explanation:
(60+2w) x (30+2w)
1800+120w+4w^2+60w
Combine like terms and rearrange into quadratic equation
4w^2+180w+1800
Don't forget to put your units and since we are talking about area be sure to add your squared symbol
What is 3 more than -5 ?
plsssss answer i will mark as brilliant
Answer:
-2
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
Please help! If i don’t get this grade up i’m getting grounded.. i’m begging you
Answer:
19 my person of unidentified gender (random text to make this longer)
if you have to get the answer for 4 multiplied by a number to make it 76 you know you could get the same number by dividing 76 / 4
the answer you can try is 4(x+19)=76
So yall finna ignore my question even when I offer brainliest?!
Ha i gotchu I you guys an even hard one to help me on :)
-gives brainliest,thx,ratings-
(Answer all and Correctly)
(the top two are diff than the bottom two)
Answer:
(39) -6x+7 (40) 33n+15 (41) -4a-4 (42) 2k
Step-by-step explanation:
Tell whether the following numbers are prime or composite.
a) 17 _________ b) 54 _________ c) 77_________ d) 23 __________
ANSWER:
l--------------------------------------------------------------------------------------------l
l--------------------------------------------------------------------------------------------l
Answer:
17= Prime number
54= Composite
77=Composite
23=Prime
Hello there!
Prime numbers have 2 factors and composite numbers have 3 or more factors.
17 is prime because it has only 2 factors: 1 and itself.
54 is composite because it has more than 3 factors.
77 is composite because it has more than 3 factors.
23 is prime because it has only 2 factors.
Hope this helps you!
~Just a joyful teen
[tex]SilentNature[/tex]
What is the area, in square meters, of the figure below?
Answer:
[tex]0.55[/tex] square meters
Step-by-step explanation:
The area of a triangle can be calculated by multiplying its height and base, then dividing the result by [tex]2[/tex]. As an algebraic expression, that would be [tex]\frac{bh}{2}[/tex], where [tex]b[/tex] is the base and [tex]h[/tex] is the height. In this case, [tex]b=2.2[/tex] and [tex]h=0.5[/tex]. Therefore, the area of the triangle is:
[tex]\frac{bh}{2}\\= \frac{2.2*0.5}{2}\\=\frac{1.1}{2} \\= 0.55[/tex]
Hope this helps!
By observing the diagram, we have :
Base of triangle, b = 2.2 mHeight of triangle, h = 0.5 mNow, we know that :
[tex] \large \underline{\boxed{\tt{Area_{(triangle)} = \dfrac{1}{2} \times base \times height}}}[/tex]
So, by substituting values, Area of given triangle will be :
[tex] \sf : \implies Area = \dfrac{1}{2} \times 2.2\: m \times 0.5\: m[/tex]
[tex] \sf : \implies Area = \dfrac{1}{\cancel{2}} \times \dfrac{\cancel{22}}{10} \: m \times \dfrac{5}{10} \: m[/tex]
[tex] \sf : \implies Area = 1 \times \dfrac{11}{10} \: m \times \dfrac{5}{10}\: m[/tex]
[tex] \sf : \implies Area = \dfrac{55}{100} \: m^{2}[/tex]
[tex] \sf : \implies Area = 0.55 \: m^{2}[/tex]
Hence, Area of given triangle is 0.55 m².
How many grams are in 4.3 moles of ammonium chloride
Answer:
230 g
Step-by-step explanation:
4.3 x molar mass of NH4Cl
Molar Mass of NH4Cl = 14.0067 + 4x1.0079 + 35.453 = 53.491
4.3 x 53.491 = 230 g
If g(x)=5/4x-7, what is the value of g(12)
Answer:
8
Step-by-step explanation:
g(12) = 5/4(12)-7 = 15-7 = 8
Bananas sell for $0.49 for 1 pound. How much will 1.31 pounds cost?
Answer:
0.64
Step-by-step explanation:
Bananas:0.49:1
?:1.31
1x1.31 is 1.31 so
0.49x1.31=0.64
my math problem is 3.8x=-19 I have to show all of my work... Help
Answer:
-5
Step-by-step explanation:
3.8x= -19
3.8x/3.8= -19/3.8
x=-5
If x and y vary inversely; and y = 2, when x = 3. Find the value of y, when x = -2.
Step-by-step explanation:
this is the answer I hope it helps
40% lower than 1,110
Answer:
its 444
Step-by-step explanation:
HEEEEPLLLP IF RIGHT WILL GIVE YOU BRAINLIEST IF WRONG I WILL GO TO A CORNER AND CRYYY
Answer:
The last one is incorrect
Step-by-step explanation:
(Multiple choice/ Brainliest will be rewarded)
I’d like some help on this question.
(Zoom in if needed, the answer may be blurry )
Answer:
1. h=1.5d. 2. 30cm in 20 days
Step-by-step explanation:
2. 20×1.5
Create the equation to the parallel or perpendicular lines. Describe the transformation(s).:
Write a line in slope-intercept form that contains the point (4, -6) and is parallel to the line described by y = -2x + 7. Describe the transformation
Answer:
.
Step-by-step explanation:
.
While parasailing. Ryan spots a dolphin on the water below. If Ryan is 228 feet above the
water and the angle of depression to the dolphin is 15, what is the horizontal distance
between Ryan and the dolphin?
Answer:
850.9 feet
Step-by-step explanation:
The horizontal distance between Ryan and the dolphin is 850.907 feet.
What is Trigonometry?One area of mathematics known as trigonometry examines the relationship between the sides and angles of a right triangle. The relationship between sides and angles is defined for 6 trigonometric functions.
We have,
Ryan is 228 feet above the water and the angle of depression to the dolphin is 15.
Using trigonometry
tan 15 = 228/ x
x= 228/ tan 15
x= 228 / 0.26794919243
x = 850.907 feet
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help please!!!!!!!!!!
Answer:
110 degrees
Step-by-step explanation:
the angles stay the same even if the size changes!
Answer:
110 because if you add up the angles and subtract the rest then you get it
help, due at 6:00, will give brainliest. HELP ASAP
Answer: Anwse is 36 and 23
Step-by-step explanation:
There are 550 people at the school carnival.
Part A
If 385 of the people are students, what percentage of the people at the carnival are students?
Part B:
If 30% of all the people at the carnival are on a ride, how many people are on the ride?
Answer:
70% of the people at the fair are students
165 people are on the ride
Step-by-step explanation:
In order to find a percentage, take the fraction given, 385/550, and divide the numerator, 385, and divide it by the denominator, 550. Once completing this, we get 0.7
Next, we multiply the result by 100, and get 70, thus, 385 is 70% of 550.
To find how many people 30% of 550 is, we take the percentage and put it in a fraction with the denominator being 100(changes with size of fraction like a decimal, 300 would be over a denominator of 1000)
With 30/100, we then multiply by 550 with the equation looking like this:
30/100*550/1
Once we finish multiplying(typically using a calculator, although you can do it manually) we get 165, the value of how many people are on rides out of the total 550.