The times for running a 5K for a local charity event are Normally distributed. Which standardized time represents the
87th percentile?
Find the z-table here.
-1.34
-1.13
01.13
1.34

Answers

Answer 1

Answer:

1.13

Step-by-step explanation:

Edge 2021 hope this helps


Related Questions

Please Help No fake answers

Answers

Answer:

5.09 or 5.10(if u round up)

Step-by-step explanation:

When you convert √24 it will be 5.099

The decimal point must lie between 5 and 0

Hope this helps:)

pls hurry if you can. A What is the volume of this cube?



Question 5 options:

26.46 cm3

9.261 cm3

6.3 cm3

Answers

Answer:

9.261 cm³

Step-by-step explanation:

2.1x2.1x2.1=9.261

Answer:

9.2

Step-by-step explanation:

the answer is 9.2 yo multiplu 2.1x2.1x2.1

If 50% of a number is 150 and 30% of the same number is 90, find 80% of that number.

Answers

Answer:

240

Step-by-step explanation:

We know that 50% of the number is 150 so we can assume the number is 300(if its 50% just double that number). Next we use the equation 0.80 x 300 which gives us the answer 240.

Hope I helped

Answer:

240

Step-by-step explanation:

50%*x=150

0.5x=150

x= 300

30%*x=90

0.3x= 90

x= 300

80%*300=

0.8*300= 240

An Internet company located in Southern California has season tickets to the Los Angeles Lakers basketball games. The company president always invites one of the seven vice presidents to attend games with him, and claims he selects the person to attend at random. One of the seven vice presidents has not been invited to attend any of the last four Lakers home games. What is the likelihood this could be due to chance

Answers

Answer:

0.5398

Step-by-step explanation:

Given that :

Total possible numbers vice presidents invited = 7

Required number of vice presidents invited = 1

Probability that a certain vice president is invited ;

P(a certain V. P is invited) = required outcome / Total possible outcomes

P(a certain V. P is invited) = 1/ 7

P(1 of the V. P's hasn't been invited to attend any of the last 4 games)

Then ; it means any of the remaining (7 - 1) = 6 has been invited ;

Hence,

P(1 of the V. P's hasn't been invited to attend any of the last 4 games) = ((7-1) / 7)^4

Likelihood that it could be due to chance :

(6/7)^4 = 0.5397750

= 0.5398

Will mark brainlest Thanks

Answers

Answer:

the answer is d

Step-by-step explanation:

Given that f(x) = x2 – 5x + 6 and g(x) = x – 3, find f(x) + g(x) and express
the result in standard form.

Answers

Answer:

G(X)+f(X) = x2-6x+3

Step-by-step explanation:

HELP ME WITH A MATH PROBKEM Type a number that has a value less than 4.7|

Answers

Answer:

i think

all the numbers between

0 to 4.6

Answer this question and I will mark you branilist

Answers

Answer: F

Step-by-step explanation:


m is a negative number.
Which statement is correct?
Choose only one answer.
A m + 9 is always positive
Bm + 9 is always negative
c m + 9 cannot be zero
D m + 9 could be positive or negative or zero​

Answers

Answer:

D

Step-by-step explanation:

Examples

-10 +9 = -1

-8 +9 = 1

-9+9=0

1 of 8
© An object has a mass of 240 kg and a volume of 8 m3.
Find the density of the object in kg/m²
o
kg/m3

Answers

Answer: 30 kg/m³

Step-by-step explanation: density = mass / volume

Density is 240 kg / 8 m³

I need to know 2, 3, and 4.

Answers

Answer:

Step-by-step explanation:

Let the equation of the line 'a' is,

y = mx + c

Here, m = slope of the line

c = y-intercept

For line 'a',

Slope of the line = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]

m = [tex]\frac{10}{16}[/tex]

m = [tex]\frac{5}{8}[/tex]

y-intercept = 20

Therefore, equation of the line 'a' is,

y = [tex]\frac{5}{8}x+20[/tex]

Similarly, equation of the line 'b' is,

y = m'x + c'

Slope of the line = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]

m' = [tex]\frac{20}{16}[/tex]

m' = [tex]\frac{5}{4}[/tex]

y-intercept = 0

Therefore, equation of the line is 'b' is,

y = [tex]\frac{5}{4}x[/tex]

1). Line 'b' represents a proportional relationship → FALSE

2). The constant of proportionality of y to x for line 'a' is [tex]\frac{1}{2}[/tex] → FALSE

3). The ratio of y-coordinate to x-coordinate of one of the points on line b is 25 : 8 → FALSE

4). let a passes through the point [tex](1,\frac{5}{4})[/tex] so the constant of proportionality is [tex]\frac{5}{4}[/tex] → TRUE

AAAAAAA HELP ME PLZZZZ

Answers

Answer:

12 i believe

Step-by-step explanation:

volume; LxWxH

3x2x2

3x2=6

6x2=12

sorry if this is wrong lol but this is what i believe it is

Caleb's vegetable garden yielded 23 pounds of bell peppers. He gave two-thirds
of the total yield to his reighbor, Jacob. How many pounds of bell peppers did
Jacob receive?

Answers

Jacob received 15.3 pounds of bell peppers.

An amusement park sells 5 bottles of water for every
2 bottles of juice. In one hour, the amusement park
sells 20 bottles of water. How many bottles of juice
does the amusement park sell?

Answers

Answer:

8 bottles of juice

Answer:

8 bottles of juice

Step-by-step explanation:

if 5bottles of water = 2bottles of juices

20bottles of water =

20/5 = 4

4 * 2 = 8

Answer = 8bottles of juices

In a lumberjack competition, a contestant is blindfolded and then spun around 9 times. The contestant then immediately tries to hit a single point (the target) in the middle of a horizontal log with an axe (while still blindfolded). The contestant receives

15 points if their swing is within 3cm of the target.
10 points if their swing is between 3cm and 10cm of the target.
5 points if their swing is between 10cm and 20cm of the target
zero points if their swing is further away from the target (and someone may lose a finger!).

Let Y record the position of the hit, so that Y = y > 0 corresponds to missing the target point to the right by y cm and Y = - y < 0 corresponds to missing the target to the left by y cm. Assume that Y is normally distributed with mean mu = 0 and variance 100 cm^2. Find the expected number of points that the contestant wins.

Answers

Answer:

9.364 is the expected number of points.

we can approximate this to 10 points if we want a whole number

Step-by-step explanation:

We have these variables:

[0,5,10,15]

P(x= 0) = p(y>20)+p(y<-20) = 2p(y>20)

P(x=5) = p(-20<=y<=10)+p(10<=y<=20) = 2p(10<=y<=20)

P(x=10) = p(-10<=y<=-3)+p(3<=y<=10) = 2p(3<=y<=10)

P(x=15) = p(-3<=y<=3) = 2p(0<=y<=3)

Z = y/10

Therefore

P(x= 0) = 2(y>20)

= 2p(z>2) = 2(1-p<=2)

= 2(1-0.9772)

= 0.0456

P(x= 5)

= 2p(10<=y<=20)

= 2p(1<=z<=2)

= 2(0.9772-0.8413)

= 0.2718

P(x= 10)

= 2p(3<=y<=10)

= 2p(0.3<=z<=1)

= 2(0.8413-0.6179)

= 0.4468

P(x = 15)

= P(0.6179-0.3821)

= 0.2358

To get expected value of Y

0(0.0456)+5(0.2718)+10(0.4468)+15(0.2358)

= 1.359 + 4.468 + 3.537

= 9.364

E[Y] = 9.364

Can someone please help​

Answers

Answer:

12x+3x=15+6

15x=21

divide both sides by 15

x=7/5

Answer:

hey well use transposition method in this

so 12x-15=6-3x

so.12x+3x-15=6 (we transposed-3 to other side so it became +3)

15x-15=6

15x=6+15

15x=21

X=21/15

X= 1.4

I think I'm correct but if wrong pls don't report me just correct me so I can learn

Based on concerns raised by his preliminary research, the biologist decides to collect and examine 150 frogs.
a) Assuming the frequency of the trait is still 1 in 8, determine the mean and standard deviation of the number of frogs with the trait he should expect to find in his sample.
b) Verify that he can use a Normal model to approximate the distribution of the number of frogs with the trait.
c) He found the trait in 22 of his frogs. Do you think this proves that the trait has become more common?
Explain.

Answers

Answer:

Answered and explained below

Step-by-step explanation:

A) We are told that frequency of the trait is still 1 in 8. Thus, population proportion; p = 1/8 = 0.125

Sample size; n = 150

Formula for mean is;

μ = np

μ = 150 × 0.125

μ = 18.75

Formula for standard deviation is;

σ = √(np(1 - p))

σ = √(150 × 0.125(1 - 0.125))

σ = √16.40625

σ = 4.05

B) usually, when np ≥ 10 , we make use of normal distribution.

I'm this case, it is 18.75 which is greater than 10.

Thus,we can use a normal model to approximate the distribution.

C) we are told that he found the trait in 22 of the frogs.

Thus;

Proportion is now; 22/150 = 0.1467

This is a higher probability that the initial one of 0.125 and we can say that the trait has become more common.

Triangle DIG is reflected across the l-axis.
O (x, y) --> (-x, y)
O (x, y) --> (-X, -y)
(x, y) --> (y,x)
O (x,y) --> (x,-))

helpp its for a timed assignment

Answers

there is not such thing as an I axis, but I will show you what happens for both x and y axis so you can fill out the assignment with the correct information.

IF you meant flipping over the x axis, then the dot will go from top to bottom, bottom to up, the x position won't change only its height(y position)

This meant that for reflecting across the x axis, (x,y)->(x,-y)

For y axis its the opposite, just flipping to the side.

This meant that for reflecting across the y axis, (x,y)->(-x,y)

Solve similar triangles (advanced)
Solve for x
x=?


Answers

Answer:

x = 1.2

Step-by-step explanation:

AD/AB = DE/BC (Similarity Theorem)

AD = 6 + 4 = 10

AB = 6

DE = 2

BC = x

Plug in the values

10/6 = 2/x

Cross multiply

10*x = 2*6

10x = 12

Divide both sides by 10

x = 12/10

x = 1.2

I’m stuck on this one. Can any one help me?

Answers

3, and apparently its "too short of an answer on this website"

simplify by distributive property 9-5b+5m​

Answers

Answer and Step-by-step explanation:

This is as far as the expression can be simplified.

The undistributed version of the expression is:

9 -5(b - m)

#teamtrees #PAW (Plant And Water)

−5b+5m+9 this should be the answer correct me if I’m wrong.

Does this graph represent a function? Why or why not?

Answers

Answer:

The answer is a because it does pass the verticle line test

start time: 2:18:09 pm elapsed time: 5 hr 34 min 27 sec end time:??

Answers

Answer:

Start time: 2:18:09 pm

End Time : 7:52:36 pm

Step-by-step explanation:

Plus these numbers

2:18:09

5:34:27

_______

2+5 = 7

18+34 = 52

09+27 = 36

7:52:36

use the expression (8x + 2) + (-9x + 7)
a. find the sum
b. explain how you know when to combine terms with variables

Answers

combine like terms, you would get -1+9 which your answer would be 8

Help please I give brainliest and be serious

Answers

Answer:

you add all sides then you can calculate

In ΔTUV, the measure of ∠V=90°, the measure of ∠T=72°, and VT = 6.6 feet. Find the length of TU to the nearest tenth of a foot.

Answers

Answer:

21.4

Step-by-step explanation:

Answer:

21.4

Step-by-step explanation:

delta math told me! :)

simplify the expression by using the distributive property 2(3x-5)​

Answers

Step-by-step explanation:

multiply the outer term to the inner term

so, 6x-10.

Hello.

Let's use the Distributive Property to simplify the given expression.

Remember, the Distributive property states that

a(b+c)=ab+ac

Now, let's simplify our expression:

2(3x-5)

6x-10

This is the simplified answer; we can't simplify it anymore.

I hope it helps.

Have an outstanding day. :)

[tex]\boxed{imperturbability}[/tex]

Each model below is divided into sections of equal size Which model does Not have 75% of the total area shaded

Answers

Answer:

G

f is 6/8=3/4 = 75%

h is 9/12=3/4 = 75%

I is 3/4 = 75%

so the answer is G

If John gets paid $45.00 an hour and works 10 hours, how much does he earn?

Answers

10 times 45 equals 450 so he would’ve made 450 if he worked for 10 hours

Hey guys can you guys help me thanks :)​

Answers

D. Multiply 60 by 9, then divide by 4

Explanation

Answer:

d

Step-by-step explanation:

60x9 =540

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