To solve this, we need to use the z statistic. The formula for z score is:
z = (x – u) / s
where x is sample value = less than 90, u is the sample mean = 90.6, s is the standard deviation = 17.2
z = (90 – 90.6) / 17.2
z = -0.035
From the standard distribution tables:
P (z = -0.035) = 0.4860
Therefore there is about 48.60 % chance that it will be less than 90 pounds
224 students out of 560 students chose chocolate ice cream. What percent is this?
Answer:
Just divide the 224 out of the total 560
40%
Step-by-step explanation:
calculate the value of (-8) * (-2/3)
Answer: Exact Form: 16/3
Decimal Form: 5.3333...
Mixed Number form: 51/3
Step-by-step explanation: Hope I helped
Answer:
5 1/3
Step-by-step explanation:
Clare is painting some doors that are all the same size. She used 2 liters of paint to cover 135 doors. How many liters of paint are needed for 1 door?
Which of the following are benefits of a debit card? Select all that apply.
A) more debt
B) built into checking account
C) high annual fee
D) can withdraw cash
Answer:
D
Step-by-step explanation:
i got this like years ago and i passed heeheh
please it’s due in 30 minutes i will give brainly
Answer:
Area = 113.01 m²
Step-by-step explanation:
From the picture attached,
Area of the quadrilateral ABCD = Area of triangle ABC+ Area of triangle ACD
Construction to be done → Draw a perpendicular from a point A to the opposite side CD
Area of Δ ABC = [tex]\frac{1}{2}(AB)(BC)[/tex]
= [tex]\frac{1}{2}(12)(10)[/tex]
= 60 m²
Area of triangle ACD = [tex]\frac{1}{2}(AE)(CD)[/tex]
From ΔAEC,
sin(29°) = [tex]\frac{AE}{AC}[/tex]
AC = [tex]\sqrt{(12)^2+(10)^2}[/tex] [By Pythagoras theorem]
AC = [tex]\sqrt{244}[/tex]
AC = 15.62 m
Therefore, AE = 15.62sin(29)
= 7.57 m
Area of ΔACD = [tex]\frac{1}{2}(7.57)(14)[/tex]
= 53.01 m²
Area of ABCD = 60 + 53.01
= 113.01 m²
PLS HELP ASAP SEE SCREENSHOTS I NEED ANSWERS LIKE RN PLSS SRRYY:(
Answer:8= 2nd answer 9=3rd answer
Step-by-step explanation:
I don’t understand this plsss help. You don’t rlly need to give an explanation if you don’t feel like it. I just need an answer
find the missing number 29\50=__\100
Answer:
58/100
Step-by-step explanation:
50 times 2 is 100, so we multiply the other number by 2 because what you do to the bottom you do to the top.
29 times 100 is 58
your answer is 58/100
PLEASE HELPPP ILL DO ANYTHING PLEASE
Answer:
7 2/3
Step-by-step explanation:
We can divide 23/3 which teh closest whhole number is 7 and we have a remainder of 2. So 7 2/3
Answer: Hello! Your answer should be 7 2/3, hope this helps
Step-by-step explanation:
g(x)=f(x)+5 what's the transformation?
Answer:
see explanation
Step-by-step explanation:
Given g(x) then g(x) + c is a vertical translation of g(x)
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
Thus g(x) is the graph of f(x) translated 5 units up
2. Identify the measure of angle x. (Write your answer in number form only, 1 point
for example 8. No degree symbol). *
73
Answer:
17
Step-by-step explanation:
need help please show your work
find the missing angles of triangles
Answer:
angle: 71
x = -3
Step-by-step explanation:
step 1: 180-(55+54) = 71
step 2: x+74=71 (subtract 74 from both sides)
step 3: x=-3
step 4: -3+74=71
The graph shows a volume of ice cubes versus temperature in degrees celsius. Which of the statements is false?
A. The correlation coefficient is close to zero.
B. Temperature is strongly correlated to the volume of ice cubes.
C. Temperature is the explanatory variable.
D. The data show a negative linear relationship.
The statements which is false about the volume of ice cubes versus temperature graph is the correlation coefficient is close to zero.
What is the correlation coefficient?Correlation coefficient is used to calculate how strong the relationship is between the two variables.
When there is a statistical relationship between two or more variables, then they are said to be in correlation.
Types of correlation-
Positive correlation coefficient- When the value of correlation coefficient is positive, then the value of one variable increases with increase in other variable.Negative correlation coefficient- When the value of correlation coefficient is negative, then the value of one variable decreases with increase in other variable.
The graph shows a volume of ice cubes versus temperature in degrees Celsius.
For a perfect correlation, -1 or +1 values is ideal. Here, some relation can be seen in a negative straight line, which suggest that the correlation coefficient is not close to zero.
Both volume and temperature has strong correlation for linear line where, temperature is the explanatory variable.
Thus, the statements which is false about the volume of ice cubes versus temperature graph is the correlation coefficient is close to zero.
Learn more about the correlation coefficient here;
https://brainly.com/question/4219149
#SPJ2
Answer:
The correlation coefficient is close to zero
Step-by-step explanation:
just did it
PLEASE HELP ME!! I will mark you branliest
Answer:
10
Step-by-step explanation:
The perimeter of one side (RS) is 4, while the other (QS) Is slightly longer. Round it to 4. And the last side (QR) is half the size of the first side (RS)
Therefore, the answer should be 10
Tell whether the two rates form a proportion: 25 cars in 5 days: 60 cars in 12 days.
yes or no?
Answer:
Not sure but i think its a yes
Step-by-step explanation:
25 divide by 5 = 5 60 divide by 12 =5
What is the value of x that makes the number sentence true? x + (-5) = -5
Moe and Larry each need to raise $200 to go on a trip with their school band.
Mo has $35 in savings and earns $20 per week delivering papers.
Larry has $60 in savings and earns $10 per we do yard work.
Each student can write an equation using the
following "let" statements:
Let X be the number of weeks work and Y be the amount of money saved.
How long will it take for a have to work to have enough money for the trip ?
Moe Larry
35 + 20x 60 + 10x
35 + 20x = 60 + 10x
(show work)
x = 2.5
Moe and Larry will have the same amount of money in their savings accounts after 2.5 weeks.
-From TheRealMarinette
-Pls Dont Not Copy N Paste.
Ashley is driving at a rate of 15 miles per hour. How far will she get if she drives 6 hours
Answer:
90 miles
Step-by-step explanation:
6 x 15 = 90
fill in the blanks below please help
Choose the expression that represents a quadratic expression.
O 6x4 - 5x3 + 3x2 -7x - 8
) 5x3 + 3x2 -7x - 8
O 2x2 + 3x - 1
. 3x - 1
Answer:
3) 2[tex]x^{2}[/tex] + 3x - 1
Step-by-step explanation:
A quadratic expression is an expression involving a squared term
It can be written as y = a[tex]x^{2}[/tex] + bx + c, where a ≠ 0
// note that here b and c can be equal to 0
1) 6[tex]x^{4}[/tex] - 5[tex]x^{3}[/tex] + 3[tex]x^{2}[/tex] - 7x - 8 is simply incorrect because you can't write in the previously mentioned form. It is a quartic function, since the unknown variable x in forth degree. It can be written as y = a[tex]x^{4}[/tex] +b[tex]x^{3}[/tex] +c[tex]x^{2}[/tex] + dx + e, where a before [tex]x^{4}[/tex] ≠ 0
2) 5[tex]x^{3}[/tex] + 3[tex]x^{2}[/tex] - 7x - 8 is simply incorrect because you can't write in the previously mentioned form. It is a cubic function, since the unknown variable x in third degree.
3) 2[tex]x^{2}[/tex] + 3x - 1 is correct
4) 3x - 1 is incorrect because there is no squared term. You could also say that here a = 0 and write it as y = 0 * [tex]x^{2}[/tex] + 3x - 1. It is also called a linear function because if you'd draw a graph, it would be a line
Answer:
2x2 + 3x - 1
Step-by-step explanation:
SOMEONE HELP ASAP PLEASE
<><><><><><><><><><><><><><><>
What is the solution to the equation? 2+53 - -9
AGAIN PLEASE SOMEONE HELP
Step-by-step explanation:
2 + 59 -(-9) = 2+ 59 +9 = 59 + 11 = 70
Fill in the green box.
z
4
9
Z =
= [?]
x is a whole number
Write down the smallest value of x that satisfies 3x > x + 7
Answer:
x= 6
Step-by-step explanation:
3x > x + 7
3(6) > 6 + 7
18 > 13
Hope this helps. Thank you !!
Answer:
it's 4 because if you multiply 3 and 4 it's 12. and 4 plus 7 is 11. making 4 the lowest
PLEASE HELP!!!!!!!!!! Solve. −8y ≥ 56 y ≤ 7 y ≥ –7 y ≤ −7 y ≥ 7
Answer:
A
Step-by-step explanation:
the answer is
-8y>=56
-y>=7
y<=7
Find the equation of a line which is parallel to y= 2/5 x + 17 and passes through (-15,12)
Answer:
y = 2/5x + 18.
Step-by-step explanation:
The line will have the same slope of 2/5.
Using the point-slope form of a line:
y - 12 = 2/5(x - -15)
y - 12 = 2/5(x + 15)
y = 2/5x + 6 + 12
y = 2/5x + 18.
Answer:
y = (2/5)*x + 18
Step-by-step explanation:
Because the line is parallel to the line y = 2/5 x + 17, the slope of the new line has to be the same as well. So far, we have y = (2/5)*x .
Now what we can do is plug in -15 for x and see what we get for y. Because we get -6, we need 18 more to make it 12. Because of that, the y-intercept is 18 to make the equation of the line y = (2/5)*x + 18.
Mrs. Brown uses
1/4 package of graph paper for each class. She needs 1 1/2 packages to serve all of her
classes. How many classes does Mrs. Brown teach?
Answer:
6
Step-by-step explain
1.5 divide by .25 = 6
What is the value of x in the equation 3/4 x + 24 = x − 12 ?
Answer:
x = 144
Step-by-step explanation:
3/4x + 24 = x - 12
3/4x - x = -12 - 24
3/4x - 4/4x = -36
-1/4x = -36
x = -36/-1/4
x = 144
I NEED HELP AGAIN 5.0
Answer:
(-1,-3) (0,-5)
Step-by-step explanation:
Move dot at the origin to (-1,-3) down three and one to the left
Select other dot and move it to (0,-7)
pls help i need it quickly
Step-by-step explanation:
for 12
Perimeter (P)
= 2( L + B)
= 2 ( 500 + 300)
=2 * 800
= 1600 cm
For 13
Area
= L * B
= 500 * 300
= 150000 cm²
Step-by-step explanation:
Since Promethean board is rectangle in shape,
So Given,
Dimensions of that board = 500 cm by 300 cm
Hence, Perimeter of the board = 2(l+b)
= 2(500cm + 300cm) = 2 × 800cm
= 1600cm (Ans)(i)
Therefore, area of that board = l × b
= 500cm × 300cm
[tex] = 150000 {cm}^{2} (ans)(ii)[/tex]
The product of
two integers is – 24. The difference
between the two integers is 14. The sum of
the two integers is 10. What are the two
integers?
Answer:
a= 12
b=-2
Step-by-step explanation:
12 x -2 = -24
12 - (-2) = 14
12 + (-2) = 10
The two integers are 12 and -2.
What are simultaneous equation?In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Let x and y be the two integers.
So it is given that,
Product of two integers = – 24
⇒ xy = - 24 ....(i)
The difference between the two integers = 14
⇒ x - y = 14 ...(ii)
The sum of the two integers = 10
⇒ x + y = 10 ....(iii)
Now adding equation (ii) and (iii) we get,
2x = 24
⇒ x = 12
Putting the value of x in equation (i) we get,
12y = - 24
⇒ y = - 2
So the required integers are 12 and - 2.
To learn more about simultaneous equation:
https://brainly.com/question/17726417
#SPJ2