Answer:
C
Step-by-step explanation:
Use the information on the right to determine which students will have positive z-scores. Aaliyah, who completed the exam in 55 minutes Benjamin, who completed the exam in 86 minutes Cynthia, who completed the exam in 72 minutes
Answer:
B and C, Benjamin and Cynthia.
Step-by-step explanation:
Next part (Cynthia's score) is 0.2
Answer:
Here's all the answers to the assignment! This is here to help future people in order to get a good grade on e2020! :)
Use the information on the right to determine which students will have positive z-scores.
Answer(s):
B) Benjamin, who completed the exam in 86 minutes
C) Cynthia, who completed the exam in 72 minutes
Cynthia’s z-score is
Answer) 0.2
A newborn who weighs 2,500 g or less has a low birth weight. Use the information on the right to find the z-score of a 2,500 g baby.
Answer) -2
What is the z-score of a newborn who weighs 4,000 g?
Answer) 1
What weight would give a newborn a z-score of −0.75?
Answer) 3125
In the United States, birth weights of newborn babies are approximately normally distributed with a mean of ? = 3,500 g and a standard deviation of ? = 500 g.
According to the empirical rule, 68% of all newborn babies in the United States weigh between
Answer(s) 3000 g and 4000 g
95% of all newborn babies in the United States weigh between
Answer(s) 2500 g and 4500 g.
99.7% of all newborn babies in the United States weigh between
Answer(s) 2000 g and 5000 g.
According to the empirical rule, 68% of 7-year-old children are between
Answer(s) 47 inches and 51 inches tall.
95% of 7-year-old children are between
Answer(s) 45 inches and 53 inches tall.
99.7% of 7-year-old children are between
Answer(s) 43 inches and 55 inches tall.
Use the information given in the table on the right to complete each of the following statements.
Brenda is 50 inches tall. Her z-score is
Answer) 0.5
Zach has a z-score of –1.5. His height is
Answer) 46 inches.
Approximately 16 % of 7-year-old children are taller than 51 inches.
In the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g.
What percent of babies born in the United States are classified as having a low birth weight (< 2,500 g)? Explain how you got your answer.
(Answers)
The z-score for 2,500 g is –2.
According to the empirical rule, 95% of babies have a birth weight of between 2,500 g and 4,500 g.
5% of babies have a birth weight of less than 2,500 g or greater than 4,500 g.
Normal distributions are symmetric, so 2.5% of babies weigh less than 2,500g.
Find the length of AD
Answer:
AD = 6
Step-by-step explanation:
5+x-----12
5------10
50+10x = 60
10x = 60-50
10x = 10
x = 1
AD = 5+1
AD = 6
The ratio of 6th graders to 7th graders in a class of 35 students is 3:4. How many more 7th graders than 6th graders are in the class?
Answer:
Assessment started: undefined.
Item 1
The floor of a dollhouse is shaped like a rectangle with a length of 34 foot and a width of 512 foot. Use this model to determine the floor's area.
What is the floor's area?
Enter your answer as a fraction in simplest form by filling in the boxes.
Step-by-step explanation:
9. What is the domain of the relation {(−2, 4), (1, 3), (0, −4), (3, 2)}?
Answer:
{-2, 0, 1, 3}.
Step-by-step explanation:
First of all domain is the x- coordinates. The domain of the relation is
{-2, 0, 1, 3}.
Hope this helped! If so, plz mark brainliest.
The domain of the given relation i.e. {(−2, 4), (1, 3), (0, −4), (3, 2)} should be considered as the (2,1,0,3).
What is the domain in relation?It is the set of all x values and the range represent the set of all y values with respect to the set of ordered pairs. It should be written as the (x,y) at the time when the set of ordered pairs, so first we have to find the domain for x values from the relation.
hence, The domain of the given relation i.e. {(−2, 4), (1, 3), (0, −4), (3, 2)} should be considered as the (2,1,0,3).
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Please help I have a D in this class.
Answer:
the value of x in terms of b is bx=-13
the value of x when b is 3 is x=-1
2 . Select the correct answer from the drop-down menu. When this polynomial is divided by (m + 1), the remainder is 0. What is the value of the polynomial's constant term? -2m2 + m - m +
Answer: answer would be -4
Step-by-step explanation:
Answer:
-4
Step-by-step explanation:
plato
Need ASAP
....................
Answer:10/15
Step-by-step explanation:10 divided by 5=2
15 divided by 5=3 in words 10/15 is simplified to 2/3
a restaurant starts with 10 dozen pieces of cornbread.every order receives 2 piece of cornbread.At the end of their lunch rush,there are 28 pieces of cornbread left.How many orders did the restaurant take?
Twelve less than two-thirds a number is 48.What is the number?
Can you please help me with those two questions and don’t only do 1 if you don’t know the answer dont comment
Answer:
32 ordersStep-by-step explanation:
10 dozen = 120120 - 28x2=28x2=56120 - 56=6464 divided by 2= 32Which is a correct interpretation of the slope of the line in this graph? (2,8) (7,6)
The volume of water in the tank is decreasing by 2 L per hour.
The volume of water in the tank is decreasing by 0.2 L per hour.
The volume of water in the tank is decreasing by 2.5 L per hour.
The volume of water in the tank is decreasing by 0,4 L per hour
Answer:
The volume of the water in the tank is decreasing by .4 an hour
Step-by-step explanation:
Drag the tiles to match each equation to its number of solutions. Each tile may be used only once.
Answer:
Hello! Brainly is used for help on homework not for joking around. Next time you ask a question please make sure to add something your confused with you will most likely get help!
BrainlyMiddleSchool
Answer:
1- one solution 2- many solutions 3- no solution
Step-by-step explanation:
-66/22 to a decimal PLEASE I NEED THE ANSWER!!! I'LL MARK BRAINLIEST
Answer: -3
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
To turn a fraction into a decimal, all we need to do is divide the numerator by the denominator. But first, we can simplify! -66/22 simplifies to -3/1 when you divide by 22 on the top and bottom. Now, it's a lot easier to divide. -3/1=-3. -3 is technically already a decimal...you just can't see the decimal point. The decimal point is actually behind -3, so it looks like this: -3.0
Have a great day! Hope this helps!!! ^^
20
16
12
Cost (dollars)
8
4
0
4 8 12 16 20
Amount of Tea (ounces)
Which equation models this relationship?
Oy=
Oy = 40
#thisisacryforhelp!!!
Answer:
y=4x
Step-by-step explanation:
you just have to find the slope!
molly bought a lunch special that was originally $14 today it is on sale for 20% off what is the sale price of the lunch special
???? , y’all should know by now i HATE math so can like one of y’all help out . lol
Answer: d-250
Step-by-step explanation: it states that Samuel receives a “net winnings” meaning he won more than he spent on the competition. Since “net”means total earned minus amount payed, what he won has to be subracted from what he owes.
24xy-10y-18x from 13xy+12y+14x with explanation
Answer:
24xy+2y−234x2fromy+14x
Step-by-step explanation:
24xy−10y−(18×13)xxfromy+12y+14x
24xy−10y−234xxfromy+12y+14x
24xy−10y−234x2fromy+12y+14x
24xy+(−10y+12y)−234x2fromy+14x
i need help with this asap please
At A nursey, the ratio of red flowers to yellow flowers is 5:4. If there are 28 yellow flowers, how many red flowers are there?
Answer:
35 red flowers
Step-by-step explanation:
4x7=28 yellow flowers
5x7= 35 red flowers
Given g(x) =
1/4(15 - x)^2
what is the value of g(7)?
Answer:
16
Step-by-step explanation:
Substitute (7) into the equation.
y= 1/4(15-(7))^2
You are looking for a new cell phone plan. The first company, Cellular-Tastic (f), charges a monthly fee of $35 and $0.11 per minute of use. Dirt-Cheap Cell (g) charges a monthly fee of $55 and $0.01 per minute of use.
a. How many minutes would you need to use for the cell phones to cost the same amount?
b. Create a graph to model this situation and describe the graph in writing in the space provided. Include the general shape and any intersections or intercepts.
c. Using your graph, explain when each company would be a better option.
Answer:
A. 200 minutes
Step-by-step explanation:
At a certain bookstore, you get a $5 coupon for every 4 books you buy. What is the least number of books you could buy to get $15 in coupons? Show your work.
Answer:
You need to buy 12 books to get a $15 coupon.
Step-by-step explanation:
Giving the following information:
You get a $5 coupon for every 4 books you buy.
First, we need to structure the total coupon formula:
Total coupon= 5*x
x= pack of four books
Now, for $15
15 = 5x
15/5= x
3= x
4*3= 12
You need to buy 12 books to get a $15 coupon.
HELP!! ASAP!! Will mark Brainliest to first correct answer !!
Answer:
A. -13 + i
Step-by-step explanation:
(5 - 9i) + (-4 + 7i) = 1 - 2i(1 - 2i) - (14 - 3i) = -13 + iI hope this helps!
Use square roots to solve the equation x^2 = −25 over the complex numbers. Enter your answers in numerical order.
Answer:
Step-by-step explanation:
x^2= -25
x=5i and -5i
Answer:
The answer is 5
Step-by-step explanation:
x^2= -25
x=√-25
x=5
will give BRAINLIEST!
Answer:
3&5
Step-by-step explanation:
Answer:
the 3rd or 4th
Step-by-step explanation:
then nth term of a sequence is 10-4n list the first 3 terms
The required first 3 terms of the sequence are 6, 2. -2.
Given that,
Then nth term of a sequence is 10-4n list the first 3 terms is to be determined.
Arithmetic progression is the series of numbers that have common differences between adjacent values
What is geometric progression?Geometric progression is a sequence of series whose ratio with adjacent values remains the same.
Here,
Nth term = 10 - 4n
For the first term, put n = 1
1 st term = 10 - 4 = 6
For the second term put n = 2
2nd = 10 - 8 = 2
For the third term put n = 3
3rd = 10 - 12 = -2
Thus, the required first 3 terms of the sequence are 6, 2. -2.
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Solve for m. -5m=-35 m=
Answer:
m = 0
Step-by-step explanation:
Solve: Add -35m to -5m
-5m = -35m
+35m
30m = 0 *note: its okay to have 0 in this spot*
divide 0/30
m=0 because you can't divide by 0
The value of m is 7 for the given statement -5m = -35.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
Given an expression
-5m = -35
Divide by -5 on both sides
m = 7
Therefore, For the given expression -5m = -35 the value of m is 7.
Learn more about Mathematical operations here:
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Chad washes windows after school to make some extra money. He charges $5.50 to wash each window. If the customer provides the supplies, Chad deducts $3.25 from the total cost. One customer paid a total of $27.50 and did not provide supplies. Which equation could be used to find the number of windows, w, that Chad washed for this customer?
*5.5w - 3.25 = 35.25
The 5.5w part shows that its $5.50 times each window. The -3.25 is because he deducted 3.25 from the total. And then you have the price that he got on the other side.
Here's the work to find the windows in case you want it:
5.5w-3.25=35.25
5.5w=38.50
w=7
He washed 7 windows
Answer:
5.5 w - 3.25 = 27.5
Step-by-step explanation:
What is the answer to this equation? -(x-10)=7
Answer:
x=3
Step-by-step explanation:
-(x-10)=7
-x+10=7
-x=-3
x=3
-(3-10)=7
A television was marked down by 1/5 of the original price. a. If it was originally $150.00, how much is the sale price? The salesperson receives 1/10"commission on the sale price of the TV. How much does he make on the sale?
The Stock Market alexander is a stockbroker. he earns 11% commission each week. Last week, sold $6400 worth of stocks. How much did he make last week in commission? If he averages that same amount each week, how much did he make in commission in 2011?
Answer:
41.2
Step-by-step explanation:
you have to add 40.1 plus 1.1 to get you answer
Write and solve an equation for this problem.
Wakaba buys some granola bars at $0.50 each and energy drinks at $2 each for a group hike. She buys twice as many granola bars as energy drinks. If she spends $27 in total, how many granola bars and energy drinks does she buy?
Let x= the number of energy drinks
Answer:
Wakaba bought 18 granola bars and 9 energy drinks.
Step-by-step explanation:
From the information given, you can write the following equations:
0.50x+2y=27 (1)
x=2y (2),where:
x is the number of granola bars
y is the number of energy drinks
You can replace (2) in (1) and solve for y:
0.50(2y)+2y=27
y+2y=27
3y=27
y=27/3
y=9
Now, you can replace the value of y in (2) to find x:
x=2(9)
x=18
According to this, the answer is that Wakaba bought 18 granola bars and 9 energy drinks.