1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mote1985 [20]
2 years ago
11

Please help quickly, if someone answers quickly I'll give them Brainly.

Mathematics
2 answers:
Ugo [173]2 years ago
7 0

Step-by-step explanation:

Ratio

= Difference between Prediction and Actual / Prediction

= (99 - 88)/99 = 11/99.

Percentage Error

= Difference between Prediction and Actual * 100%

= (99 - 88) * 100% = 11.1%. (1)

denis-greek [22]2 years ago
6 0
1. A

I hope this helped! This is because the division of numbers and factors are equal to this.
You might be interested in
What is a equation for 11 5 and b
Phoenix [80]
Answer: i need more information in order to help
3 0
2 years ago
A line passes through (–1, 5) and (1, 3). Which is the equation of the line?
fredd [130]

Answer:

Use the slope formula and slope-intercept form  y = m x + b  to find the equation.  y = − x + 4

7 0
3 years ago
Researchers at Gallup were interested in whether there was a decrease in the proportion of nonretirees (in other words, people w
Lera25 [3.4K]

Answer:

A. We have extremely strong evidence to reject H0.

Step-by-step explanation:

Let P be the proportion of non-retirees in 2015 who did not think that Social Security would be able to pay a retirement benefit by the time that they retire.

According to the data null and alternative hypotheses should be:

  • H_{0}: P=0.60
  • H_{a}: P<0.60

Test statistics is -4.29 and p-value of the statistics is p<0.001

At every significance levels higher than 0.001, we can reject the null hypothesis since p<0.001.

8 0
3 years ago
What is the value of the dicsriminant of x^2-7x+4?
Aleks [24]

Answer:

33.

Step-by-step explanation:

x^2 - 7x + 4.

The discriminant of the above

= b^2 - 4ac

=  (-7)^2 - 4*1*4

= 49 - 16

= 33.

8 0
3 years ago
Does anybody know how to do time with exponential decay
My name is Ann [436]
<span>From the message you sent me:

when you breathe normally, about 12 % of the air of your lungs is replaced with each breath. how much of the original 500 ml remains after 50 breaths

If you think of number of breaths that you take as a time measurement, you can model the amount of air from the first breath you take left in your lungs with the recursive function

b_n=0.12\times b_{n-1}

Why does this work? Initially, you start with 500 mL of air that you breathe in, so b_1=500\text{ mL}. After the second breath, you have 12% of the original air left in your lungs, or b_2=0.12\timesb_1=0.12\times500=60\text{ mL}. After the third breath, you have b_3=0.12\timesb_2=0.12\times60=7.2\text{ mL}, and so on.

You can find the amount of original air left in your lungs after n breaths by solving for b_n explicitly. This isn't too hard:

b_n=0.12b_{n-1}=0.12(0.12b_{n-2})=0.12^2b_{n-2}=0.12(0.12b_{n-3})=0.12^3b_{n-3}=\cdots

and so on. The pattern is such that you arrive at

b_n=0.12^{n-1}b_1

and so the amount of air remaining after 50 breaths is

b_{50}=0.12^{50-1}b_1=0.12^{49}\times500\approx3.7918\times10^{-43}

which is a very small number close to zero.</span>
5 0
3 years ago
Other questions:
  • Simply the equation 1 1/3
    7·1 answer
  • Find the sum of the measures of the interior angles:
    6·1 answer
  • A matched pairs experiment compares the taste of instant versus fresh-brewed coffee. Each subject tastes two unmarked cups of co
    13·1 answer
  • Solve by elimination 5x+y=0 5x+2y=30
    10·1 answer
  • Find the indicated term of the given geometric sequence.<br><br> a1 = 11, r = 3.4, n = 7
    6·1 answer
  • To make enough chili for the chili cook-off, Lee needs 20 pounds of ground
    11·2 answers
  • What expense category could be eliminated through good financial planning?
    10·1 answer
  • Kirans aunt is 17 years older than kiran.
    10·2 answers
  • Write the expression as the sine or cosine of an angle. Sin pi/3 cos pi/7 - sin pi/7 cos pi/3
    8·1 answer
  • there were v crayons In a box.1/6 of the crayons were new.angie added another 24 new crayons to the box and there are 30 new cra
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!