The 400-meter race times recorded in the boys track meet was normally distributed with a standard deviation of 3 seconds If David finished the race in 51.2 seconds with a -score of -2.6 , what was the mean time ?

Answers

Answer 1

Answer:

7AM was 8PM for a few days but 3the 3only 3and 3and 3and 3was is a little too much to me because I am not a fan of the cold and cold 4th


Related Questions

E
H
36
X + 10
57°
370
(5y + 7)º
G
60
F
J
36
1
Triangle FEG is similar to triangle IHJ. Find m_H.
mZH =
What is the answer?

Answers

Answer: 86 degrees

Step-by-step explanation:

What is the distance between the points (7,4) and (4,4)

Answers

[tex]\text{Given that,}\\\\(x_1,y_1) = (7,4)~ \text{and}~ (x_2,y_2)=(4,4)\\\\\text{Distance,}~ d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\\\\~~~~~~~~~~~~~~~~=\sqrt{(7-4)^2+(4-4)^2}\\\\~~~~~~~~~~~~~~~~=\sqrt{3^2}\\\\~~~~~~~~~~~~~~~~=3[/tex]

What is the slope of the given line? (Use only whole numbers or fractions to answer)

What is the y-intercept of the given line? (Put your answer as the y-intercept point with no spaces)

Answers

Answer:

answer is -1/2

have a nice day

Toya is using a cake recipe that calls for two cups of sugar and 3 cups of flour. she wants to make a larger amount of cake batter. if she uses six cups of flour, how many cups of sugar should she use?

Answers

Answer:

4 cups of sugar

Step-by-step explanation:

2 x 2 = 4

Toya will use 4 cups of sugar.

dialations he said she said answer key

Answers

Answer: What?

Step-by-step explanation:

50% OFF the original price! What was the original price of a gymnastics mat whose sale price is $93?

Answers

Answer:

186

Step-by-step explanation:

186-50%= 93 or since 50% is half off 93×2=186.

Mrs. Hynes gave each of her 8
students 3 pieces of candy. She
gave 1 student 2 extra pieces for
good behavior. How many pieces of
candy did she
give away in all?
PLEASE HELP and show work too please

Answers

26 pieces of candy were given away
26 pieces candy Were given

If the original price of an item on a sale was $21 and this price was reduced by 20% for the sale what is the price in the sale?

Answers

Answer:

$16.8

Step-by-step explanation:

Discount amount

21 x .2 = 4.2

Discount

21 - 4.2 = 16.8

Answer:

16.8

Step-by-step explanation:

What does AC=?
Round your answer to the nearest hundredth.

Please help

Answers

Answer: About 3.06

Step-by-step explanation:

  We can use trigonometry functions to solve for AC. Let the ?, representing AC, be "x" in our mathematical work.

  Since we have the hypotenuse and x is adjacent to the angle given, I am going to use cosine.

      cos(θ) = [tex]\frac{adjacent}{hypotenuse }[/tex]

      cos(40) = [tex]\frac{x}{4}[/tex]

      0.766 ≈ [tex]\frac{x}{4}[/tex]

      3.06 ≈ x

      x ≈ 3.06

Consider the table of the powers of 8.

A 1-column table with 6 rows. Column 1 is labeled Power of 8 with entries 8 cubed = 512, 8 squared = 64, 8 Superscript 1 = 8, 8 Superscript 0 = a, 8 Superscript negative 1 = b, 8 Superscript negative 2 = c.

Answer these questions about the powers of 8.



What is the pattern as the exponents decrease?

What is the value of each variable in the table?
a =
b =
c =

Answers

What is the pattern as the exponents decrease?

Divided by 8

What is the value of each variable in the table?

A= 1

B=1/8

C=1/64

Hope this helped!

Pls consider me for Brainliest!!

Answer:

Step-by-step explanation:

Answer these questions about the powers of 8.

What is the pattern as the exponents decrease?

✔ divided by 8

What is the value of each variable in the table?

a =

✔ 1

b =

✔ 1/8

c =

✔ 1/64

Given that y is inversely proportional to ( x + 7) and that y = 5 when x = 2,express y in terms of x..... Please help

Answers

Answer:

like if it's rere it's ree duh awsee a

If the value of a is 8 in f(x)=ax^2 what does the graph look like?

A) a parabola that opens down
B) a parabola that opens up
C) a parabola that opens left
D) a parabola that opens right

Answers

Answer:

B

Step-by-step explanation:

Graphs with x^2 look like a U shape as the negative x values will still result in a positive y value since a negative squared is a positive.

WHOEVER ANSWERS THE QUESTION FIRST WILL GET 15 POINTS!!!!!

Answers

Answer:

b

Step-by-step explanation:

the answer is b

in the problem you can put the expression into a calculator and you will get the answer 3

in option b, y+2=3 bc a variable is always equal to one so your basically adding 1+2 which is equal to 3

I HOPE I HELPED A BIT<3

On a TV game show, a contestant makes $700 for every correct answer but loses $400 for every wrong answer. After answering 22 questions, Sarah broke even. How many questions did she answer correctly?

Answers

Answer:

She answered 8 of them correctly.

Step-by-step explanation:

HELP PLS MY SISTER NEEDS HELP A LOT I WILL GIVE BRAINLIEST

Answers

Answer:

38 is the correct answer

Step-by-step explanation:

6 x 7 - 16 ÷ 4

BODMAS

Division first

6 x 7 - 4

Then multiplication

42 - 4

Then subtraction

=38

What is the surface area of the figure below

Answers

Answer: Its 120 cm

Step-by-step-explenation:

All you have to do is multiply

3x2=6

6x5=30

30x4=120

$52 lunch; 2.5% tax what is the answer

Answers

Answer:

$53.30

Step-by-step explanation:

2.5% of 52 is 1.3

1.3 + 52 = 53.30

hope this helped :)

Answer:

$53.30

Step-by-step explanation:

Cost of lunch : $52

Tax : 2.5%

Divide the tax (2.5%) by 100

2.5 ÷ 100 = 0.025

Multiply 0.025 by the cost of the lunch ($52) to get the sales tax.

52 × 0.025 = 1.3

Now, add 1.5 (sales tax) with 52 (cost of lunch).

52 + 1.3 = 53.30

So, the total cost of the lunch + tax is $53.30.


Hope this helped !

i really need help please

Answers

Answer:

56⁰

Step-by-step explanation:

I hope it helps you

If any doubts do let me know in the comments

Help I need answer now
X=?

Answers

Answer:

0.6

Step-by-step explanation:

I used 30 60 90 triangle.

What do we do to both sides of this equation to solve?

x/3 =5
Question 4 options:

Add 3 to both sides


Subtract 3 from both sides


Multiply both sides by 3


Divide both sides by 3

Answers

Answer:

Multiply both sides by 3

Step-by-step explanation:

x/3 = 5

x/3 × 3 = 5×3

x = 15

Answer:

multipy both sides  by 3

Step-by-step explanation:

There are 5 cups of oatmeal in a container.Stella has1/3 cup of the oatmeal every day for breakfast. In how many days will Stella finish all the oatmeal in the container

Answers


Answer:

Step-by-stepStep-by-step explanation:
There are 5 cups.
She takes 1/3 every day
No of days: 5 / 1/3 = 5 x 3 = 15 days

Select three ratios that are equivalent to 7:6,

Answers

Answer: 12:14 21:18 42:36

Carter says that 0.08 is equivalent to 8/10. Describe and correct Carter's error

Answers

Answer:

Step-by-step explanation:

If we divide 8 by 10, we get 8/10, which reduces to 4/5 or 0.8.  Carter misplaced his decimal point.

Please help l just don’t understand new topic

Answers

Perimeter is found by adding all sides. And since you’re given the perimeter just do it backwards. X+x+y+y=48.

Which is the best estimate of the capacity of a bathtub? A. 5 milliliters B. 50 milliliters c. 5 liters D. 50 liters​​

Answers

Answer:

D 50 liters

Step-by-step explanation:

mL is really small amount so it not A or B. 5 L is like 5 bottles which wont fill it up much so lets take out C. the answer left out is D 50 L which is the answer

The length of a rectangle is 7 cm greater than its width. The area of the rectangle is 260 cm². This situation can be expressed by the equation w^2+7w−260=0.

What is the width of the rectangle? Remember that a measurement can only be positive.

Enter your answer in the box.

Answers

Answer:

I think the answer is 15 but I am not sure hoping this helps good luck

Answer:

its 13

Step-by-step explanation:

PLEASE HELP QUICKKKK I GIVE BRAINLYIST PLEASEE

Answers

Answer:

7

Step-by-step explanation:

As you can see, each time (let's say n) increases by 1, it divides by 1/2. So from a1 to a2, you get 28/2 or 14, then from a2 to a3, 14/2 or 7.

7 being your answer.

Answer:

7

Step-by-step explanation:

Given the recursive formula.

[tex]a_1=28\\a_n=1/2a_{n-1}[/tex]

Use it to determine the value of te third term.

[tex]a_3=1/2a_2=1/2(1/2a_1) = 1/4a_1=1/4(28) = 7[/tex]

PLEASE HELP BRAINLIEST AND 10 POINTS


A sculptor is planning to order a cylinder of composite stone to sculpt a full-sized person. The figure will be 6 feet tall, and 2’ at the longest diameter. The composite stone weighs 50 pounds per cubic foot. About how much will the smallest cylinder weigh that the sculptor can order to make his statue?

Answers

47 lbs      

hope this helps

Help!!!!

20. A class of 27 students is standing in front of a Do-It-Yourself Photo Booth. "Let's get
a picture of every possible pair of us," suggested Bart. "Well, gee," answered Mandy,
"that'd be a lot of pictures." How many pictures exactly?

Answers

Answer:

13 or 14 pictures

Step-by-step explanation:

there are 27 students who has decided to be grouped in pair. pair means 2, so mathematically

27 = 2 *x 27 can't make a pair

where x is the one student is removed

number of 26 is left

pictures x = 26 \ 2

x = 27 \ 2 OR x = 13 pictures

x = 13.5

x = 14 pictures

hope it help

There are 13 or 14 pictures can be taken.

What is Algebra?

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

We have,

Total students at booth= 27 students

Number of person in a group = 2

Then, the possible number of pictures can be

x = 26/2

x= 13

Since one person is left and have a single photo which shows total 14 pictures.

Learn more about Algebra here:

https://brainly.com/question/24875240

#SPJ2

Three friends combine their
money to buy tickets for a hockey game. If they
share the change evenly, how much will each
friend receive? Write equations to represent the problem then solve.

Answers

Using proportions, considering that they spent $n to buy the ticket, each friend received an amount in dollars of [tex]\frac{n}{3}[/tex].

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, we consider that they spent $n to buy the ticket. Since there are 3 friends and the amounts were divided evenly, each friend received an amount in dollars of [tex]\frac{n}{3}[/tex].

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

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