Mathematics High School

determine the 2.5th percentile of the normal distribution with a mean of 72.5 and a standard deviation of 15 as a decimal rounded to the nearest tenth.

Answers

Answer 1

Answer:

43.1

Step-by-step explanation:

2.5 % = .025 look for this value on the z-score table to find this corresponds to z = - 1.96 Standard Deviations

72.5 - 1.96 * 15 = 43.1

Related Questions

hello please help thanks

Answers

Answer:

most likely the last choice

Step-by-step explanation:

Answer: during evaporation

Step-by-step explanation: the sun heats up the water which caused it to evaporate

Madeline has 2 times the number of games as Paulo. Paulo has 4 more games than Tyler. If Tyler has 9 games, how many games are there among the 3 friends?

Answers

There is a total of 48 games among the three friends.

Frank had $65. He spent $2 per day for 7 days. Then he was given $9 to divide equally between himself and his 2 brothers. The following expression can be used to find the amount of money Frank had after that.
65 - 2 ⋅ 7 + 9 ÷ 3 .
Based on this expression, what is the amount of money Frank had remaining?

a.$54
b.$150
c.$2
d.$444

Answers

Answer:

A.)

Step-by-step explanation:

65-2x7+9/3

PEMDAS

65-14+9/3

51+3

the width of a rectangle is 8 feet and the diagnal length of the rectangle is 13 feet which measurement is closest to the length of this rectangle in feet

Answers

Answer:

Well the whole answer is 10.246950 smth smth but I don’t have the multiple choices so your gonna have to round yourself

Step-by-step explanation:

Okay so you have a weigh of 8 and a diagonal of 13.

If you look, theres a triangle there. One side has 8 and the diagonal that was cut forms a 13. So we have a leg and a hypotnuse. To find the other leg (length) just follow the Pythagorean theroum and solve for b or a.

Pythagorean theroum: a^2+b^2=c^2

Now subsitute c for 13 since its the hypotnuse and a or b as 8 but only one.

In this case I’m substituting a for 8.

8^2+b^2=13^2

Solve the squares

64+b^2= 169

Isolate the b

b^2=105

Now square root 105

√105 will give the answer above on a normal calculator but if you have to round, I don’t know what place but you can round.

Simplify the following

Answers

Answer: sin ^ 3 ( theta)

I need help with these question! Please explain step by step-

Answers

Answer:

3 bags of chocolate chips and 3 bags of walnuts

Step-by-step explanation:

1 pound = 16 ounces (oz). So, our dear Jemina needs 48 ounces. Then, we do system of equations. one of the equations are 3x +2y = 15(dollars), and then second is 12x + 4y = 48. (ounces/pound). Let's solve for x first. We multiply the dollars equation by 2 to eliminate y from both equations. 6x +4y = 30. When you subtract, you get 6x = 18. So, x = 3, Jemina buys 3 chocolate chips bags. So, thats $9. So, she also spends $6 on walnuts. For checking, 3 bags of chocolate chips = 36 ounces. 3 bags of walnuts = 12 ounces. 36+12 ounces = 48 ounces. :D

Please help meeeee! I’m stuck

Answers

Answer:

x = 12

Step-by-step explanation:

(8x - 1) + (3x + 4) + (3x + 9) = 180 degrees

14x + 12

180 - 12 = 168

14x = 168

/14 | /14

x = 12

Top left angle: (8x - 1)

8*12 - 1

96 - 1

= 95

Sorry! gtg I hope this helps!

Your germination rate for lavender seeds is 34%. You planted 1200 seeds, how many sprouted?

Answers

408 seeds
1200 times 0.34 is equal to 408

45 divided by 75,069

Answers

Answer: 1668.2

→ Hope this helps!←

please help, i got a 0% ! screenshot of the assignment is attatched

Answers

Answer:

24 units squared

Step-by-step explanation:

Remember, it's the surface area: count the squares that are in the shape. 24 is the answer.

Answer:

Step-by-step explanation:

A=6a2 is the formal you need to salve for the aria of a cube

What is the value of the expression 3 x 5 + 32 ?
I just need to know if I put the answer or the expression

Answers

Answer:

3x³+32

Heart if it helped

Answer:

u just simplify the expression

the answer is 50

Step-by-step explanation:

find the measure of arc DB in circle P WILL GIVE BRAINLEST

Answers

Your answer is 90°.

Right triangle ABC is shown below. Write an equation that can be used to determine the angle measure, in degrees, of angle DBC. Then determine the measure of n

Answers

Answer:

Step-by-step explanation:

Plz help I’m getting timed

Answers

Answer:how long u got to answer the question

Step-by-step explanation:

Factor the expression step by step

Answers

Let's factor this.
Factoring means we want something like
(x+_)(x+_)
Which numbers go in the blanks?

We need two numbers that...
Add together to get -7
Multiply together to get 10
Can you think of the two numbers?

Try -2 and -5:
-2+-5 = -7
-2*-5 = 10

Fill in the blanks in
(x+_)(x+_)
with -2 and -5 to get...
(x-2)(x-5)

18.3: Sand Wagon
The Radio Flyer wagon is 27 feet long 13 feet wide and 2 feet deep.
1. A 150-pound bag of sand will fill about 9 cubic feet. About how many bags of sand
will it take to fill the wagon with sand?
Step by step please?

Answers

Answer:

702/9 is 78 your answer is 78

Step-by-step explanation:

27*13*2

PLEASE HELP!!!!!! I NEED THIS ASAP

Answers

Answer:

11.2

Step-by-step explanation:

PYTHAGOREAN THEOREM

14^2 = 8.4^2 + x^2

Find the area of the shape shown below.
4
2
2
1
units

Answers

Answer:

Step-by-step explanation:

it's a rectangle of area 2*4=8 minus a triangle of area 1*2/2=1 so 8 - 1 = 7

7 units, hope this helps

A pair of AirPods cost $120 at the store. A
person bought a pair and sold it online for
$150. What is the percent of increase?

Answers

Answer:

20 is the correct answer

Answer:

Step-by-step explanation:

120% divided by 150%

Find the distance between the points (-3. - 5) and (-3,1)

Answers

the estimated answer is 6

Plz help I’ll give brainliest

Answers

2. 17

3. 8

Hope this helps!

Answer: first one 17

second one 8

Step-by-step explanation:

Para decorar una pared se disponen de tiras de papel azules de 15 cm, verdes de 20 cm, y rojas de 25 cm. En la pared se quiere armar tres líneas del mismo tamaño, una de cada color y sin cortar ninguna tira. a) ¿Cuánto va a medir la menor línea que se puede armar con cada color? b) ¿Cuántas tiras se deben utilizar? c) ¿Cuántas de cada color?

Answers

Answer:

a) Smallest line that can be made with each color = 300 cm

b) Total strips should be used = 47 strips

c) Total strips used of blue color = 20

Total strips used of green color = 15

Total strips used of red color = 12

Step-by-step explanation:

Given - To decorate a wall, there are 15 cm blue, 20 cm green, and 25 cm red strips of paper. On the wall you want to build three lines of the same size, one of each color and without cutting any strip.

To find - a) How long is the smallest line that can be made with each color?

b) How many strips should be used?

c) How many of each color?

Proof -

For the smallest line that can be made with each color, we just have to find the lcm (least common multiple) of the 3 srtips.

Firstly,

Decompose the 3 strips to its prime factors , we get

15 = 3×5

20 = 2²×5

25 = 5²

So,

The Lcm(15, 20, 25) = 3×2²×5² = 3×4×25 = 300

∴ we get

Smallest line that can be made with each color = 300 cm

Now,

Total strips used = 300 cm

Strips used by 15 cm blue = [tex]\frac{300}{15}[/tex] = 20 strips

Strips used by 20 cm green = [tex]\frac{300}{20}[/tex] = 15 strips

Strips used by 25 cm red = [tex]\frac{300}{25}[/tex] = 12 strips

So,

Total strips should be used = 20 + 15 + 12 = 47 strips

Total strips used of blue color = 20

Total strips used of green color = 15

Total strips used of red color = 12

Help, I am very confused

Answers

9514 1404 393

Answer:

(a) 2S, 1A

Step-by-step explanation:

A triangle is completely specified when all three sides and all three angles are known. This triangle shows the measure of 1 side, so 2 sides are missing (2S). It shows the measures of angle Q and P, so angle N is missing (1A).

The missing information is 2 sides and 1 angle: 2S, 1A.

Please answer with explanation

Answers

Answer:

(-3,-5) and (4,9) have the y-intercept of (0,1)

Step-by-step explanation:

to be honest i just used this graph to figure it out

HELPPPP! PLZ HURRY AND SHOW UR WORK!!

TRAP ~ EZYD. Use the diagram on the right to find the scale factor of TRAP to EZYD.

The scale factor of TRAP to EZYD is __.

Answers

Answer:

3/4

Step-by-step explanation:

when you line up the figures you get 9:12 which reduces down to 3/4

PLS HELP- ill do 15 points T-T MATH

Answers

Answer:

No solution

Step-by-step explanation:

In order for a system of equations to have a solution they must intersect at some point

The two equation shown are parallel

Parallel lines never touch therefore there is no solution

PLEESE HELP I need help naw

1+1
I'm on my sisters fone I'm in kindrgarden.

Answers

Answer

Step-by-step explanation:

1+1 equals 2.

have a great day!

da anwer iws eweven(11) uwu

1) Find AC
2
А
24
118°
220
B

Answers

Ac is 40 because you add up the number and subtract by 180 which is 40 after all or that

HELP FAST PLEASE 3 = x/2
x= ?

Answers

3 = x/2

x = 3 * 2

x = 6

.......

Answer:

x=6

Step-by-step explanation:

cross multiply

x=3*2

x=6

The city of Houston received 8 more inches of rain than the town of Groesbeck. Which algebraic expression represents the amount of rain in Houston?

Answers

Answer:

8-i=g

Step-by-step explanation:

g= amount of rain Groesbeck gout

i = inches of rain

Answer:

saw this question on egde its b

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