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
Answer:
I think it increased by 0.05.
Step-by-step explanation:
If you subtract 2.8 from 55.7 you'll get 52.9. So I would divide 55.9 by 52.9 and get 1.05. I then would subtract 1.0
Solve the following systems of equations using substitution:
x = 6
y = 2x - 3
Answer:
y=9
Step-by-step explanation:
2(6)-3=9
a rational number is defined as any number that can be written as a fraction with a non zero denomination
true or false?!
Answer:
True
Step-by-step explanation:
opposite is irrational number
evaluate 2r +1 if r=3
Answer:
7
Step-by-step explanation:
So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)
I NEED HELP PLEASE !!!
what is the answer to
4 over x = 5 over 9
Answer:
Step-by-step explanation:
Answer:
x = 36/5, x = 7 1/5, x = 7.2
Step-by-step explanation:
4/x = 5/9
36 = 5x
5x = 36
divide both sides by 5
x = 36/5.
I need help!!! BADLY
Answer:
118 degrees
Step-by-step explanation:
Opposite angles always have the same angle measure.
1. Find the maximum and minimum values of z = 2x + 3y subject to the following constraints
[tex]0 \leqslant x \leqslant 7[/tex]
[tex]y \geqslant 1[/tex]
[tex]2x - y \geqslant - 5[/tex]
[tex]x + y \leqslant 11[/tex]
Copy and paste the text below and put your answers into the blanks. maximum value =
when x =
and y =
minimum value =
when x =
and y=
Answer:
Minimum Values:
x = 0, y = 1, z = 3
Maximum Values:
x = 7 , y = 11 , z = 47
Step-by-step explanation:
FOR MINIMUM VALUES:
0<= x <= 7
It is clear from the above inequality that the minimum value of x must be 0.
y>= 1
This inequality shows that the minimum value of y must be 1. Using these minimum values of x and y to get the minimum value of z:
z = 2x + 3y
z = (2)(0) + (3)(1)
z = 3 (Minimum)
FOR MAXIMUM VALUES:
0<= x <= 7
It is clear from the above inequality that the maximum value of x must be 7.
x + y <= 11
To calculate maximum value of y we can use the minimum value of x in this inequality:
0 + y <= 11
y <= 11
Hence, the maximum value of y is 11.
Using these maximum values of x and y to get the maximum value of z:
z = 2x + 3y
z = (2)(7) + (3)(11)
z = 47 (Maximum)
20POINTS HELP PLEASE!!!!!!!!!
cant use thisqwdwiwied
Answer:
ooffffffffffff have a good day/night lol
Answer:
What?? lol
Step-by-step explanation:
Determine if 7x – 4 and 2x + 1 are factors of
k (2) = 7x4 – 423
-2x-y=0
-6x+y=10
What is my solution for this ? (Eliminations)
What kind of sequence is this? –164, –149, –134, –119
Answer:
Least to greatest?????
A grocery store sells salmon fillets in package that contains at least 3 fillets of salmon,but no more than 5.which of the following could be the total number of salmon fillets in 6 packages
Answer: 18 ≤ 6*S ≤ 30
Where S is the number of salmon fillets in one single package.
Step-by-step explanation:
Let's define S as the number of salmon fillets in one package.
We know that it contains at least 3, and no more than 5, then we can write:
3 ≤ S ≤ 5
Now we want to know the total number of salmon fillets that could be on 6 packages, then if S is the number of salmon fillets in one package, 6*S will e the number of salmon fillets in 6 packages.
We can find this by multiplying the inequality:
3 ≤ S ≤ 5
by 6.
We get:
6*3 ≤ 6*S ≤ 6*5
18 ≤ 6*S ≤ 30
Then in 6 packages, we could have any number between 18 and 30 fillets of salmon.
***ANSWER PLS***
Chloe was given a box of assorted chocolates for her birthday. Each night, Chloe
treated herself to some chocolates. There were originally 30 chocolates in the box and
after 2 nights, there were 24 chocolates remaining in the box. Write an equation for
C, in terms of t, representing the number of chocolates remaining in the box t days
after Chloe's birthday.
What is C?
Answer:
C=-3t+30
Step-by-step explanation:
C=-3t+30
Really Need Help ! ASAP
Answer:
hope the above solution will help you
Anyone can help plewse! If you can’t read it please tell
Answer:
Look below! Branliest please!
Step-by-step explanation:
To find the volume, we multiply 12 by the height and then by 3.14. So for 1, we get 1*12 which equals 12, then we multiply that by 3.14 and we get 37.68. So we do that for all of them.
1*12*3.14 = 37.68
3*12*3.14 = 113.04
5*12*3.14 = 118.4
7*12*3.14 = 263.76
what shape best describes the cross cut section perpendicular to the base of the rectangluar prism
what is the equation of a line when m = -7 and b = -8?
Answer:
Step-by-step explanation:
y = mx+b
y = -7x - 8
Answer:
y=-7x-8
Step-by-step explanation:
y=mx+b
m=slope
b=y intercept
Solve the simultaneous equations
x + 5y = 16
x + 3y = 10
Answer: x=1 and y=3
Step-by-step explanation: hope this help
The solution of the linear equations x + 5y = 16 and x + 3y = 10 will be (1, 3).
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The linear equations are given below.
x + 5y = 16 ...1
x + 3y = 10 ...2
Subtract equation 2 from equation 1, then we have
x + 5y - x - 3y = 16 - 10
2y = 6
y = 3
Then the value of the variable 'x' will be given as,
x + 5(3) = 16
x + 15 = 16
x = 1
The solution of the linear equations x + 5y = 16 and x + 3y = 10 will be (1, 3).
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ2
HELP ITS FOR A TEST
which value for d makes the expressions 3d-4 and 12d÷6 is equivalent
a. 2
b.3
c.4
d.4
Answer:
"Evaluation" mostly means "simplifying an expression down to a single numerical value". Sometimes you will be given a numerical expression, wher all you have to do is simplify; that is more of an order-of-operations kind of question. In this lesson, I'll concentrate on the "plug and chug" aspect of evaluation: plugging in values for variables, and "chugging" my way to the simplified answer.
Step-by-step explanation:
Answer:
Step-by-step explanation:
find x for problem c please
Answer:
here is my solution:
let me know if you have any questions please
Spiral Review A chili cook-off has adult tickets a and child tickets C. A group of visitors buys 3 adult tickets and 2 child tickets and pays a total of $26.
Another group buys 5 adult tickets and 3 child tickets and pays $42. Write and solve a system of equations to find the price of each type of ticket.
Enter the correct answers in the boxes.
Equation 1:?
Equation 2:?
adult: $ 6
child: $ 4
I just need help on making equations
Equation 1 would be: 3a+2C
Equation 2 would be: 5a+3C
The system of equations are solved and the cost of adult ticket and child tickets are $ 6 and $ 4 respectively
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the adult tickets be a
Let the child tickets be c
Group A buys 3 adult tickets and 2 child tickets and pays a total of $26
So , 3a + 2c = 26 be equation (1)
And , Group B buys 5 adult tickets and 3 child tickets and pays $42
So , 5a + 3c = 42 be equation (2)
On simplifying , we get
Multiply equation (1) by 5 and equation (2) by 3 , we get
15a + 10c = 130 be equation (3)
15a + 9c = 126 be equation (4)
Subtracting equation (4) from equation (3) , we get
c = $ 4
Therefore , the cost of child ticket is $ 4
Substituting the value of c in equation (1) , we get
3a + 2 ( 4 ) = 26
3a + 8 = 26
Subtracting 8 on both sides , we get
3a = 18
Divide by 3 on both sides , we get
a = $ 6
Therefore , the cost of adult ticket is $ 6
Hence , the system of equations are solved
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ5
Find mZTUV if mZTUB = 229
and mZBUV = 156°
Solve
B
180°
78°
134°
178°
If the circumference of a circle is 18.84 feet what is the diameter of the circle
Answer:
I love Math anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
C + 4 = -8
Choose
This is a required question
Answer:
c=-12
Step-by-step explanation:
Solve for x
-4 + x _< 9
Answer:
Step-by-step explanation:
what is the underscore for?
Answer:
your answer should be x < 13
Step-by-step explanation:
Hope this helps and have a nice day :)
PLEASE HELP QUICK!! I am very confused and I don't understand this at all any help will be appreciated right answers will be marked brainliest :)!! Your project must have your name, title, a PRE-IMAGE, Reflection over the y-axis, and a Translation of (x+15, y-20)
50 POINTS!!
Answer:
you need to explain more of what you are wanting me to do befor I can answer this question
60 problemi 3 saatte çözen Erdem
yarım saatte kaç problem çözer?
Answer:
20 Problem Çözer
Step-by-step explanation:
60 ile 3'ü bölüyoruz. Ve Cevap 20 Çıkıyor.
Please help will brainlist
Answer:
It should be A
Step-by-step explanation:
(I'm not 100% sure, but two of the sides are congruent so I would just choose 3!)
Item 5
On a scavenger hunt, you find 16 out of 25 objects. Write "16 out of 25" as a fraction, a decimal, and a percent.
Fraction:
Decimal:
Percent:
I need help ASAP
Answer:
16/25. .64. 64%
Step-by-step explanation:
the fraction should be pretty self explanatory
the decimal you just divide 16 by 25 and for the percentage its out of 100 basically so 64 percent