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
Olenka [21]
3 years ago
12

x = - 24" align="absmiddle" class="latex-formula">
What is the missing number?​
Mathematics
1 answer:
Finger [1]3 years ago
8 0
The missing number is 4
You might be interested in
Find the perimeter of the rectangle 3x length 5 width ​
crimeas [40]

Answer:

2(2x+5)

Step-by-step explanation:

Length of the rectangle=l= 3x

Breadth of the rectangle=b= 5

Perimeter= 2(l+b)

= 2(3x+5)

3 0
3 years ago
The length of a rectangle 8 more than the width .the area is 513 square inches .find the length and width of the rectangle
Pani-rosa [81]

Answer:

width =19 inches

length= 27 inches

Step-by-step explanation:

Let width be w inches so according to given scenario as length is 8 more than width so the equation becomes

l=8+w inches (Equation 1)

Area of Rectangle= L*w

Area= 513

L*w=513    (Equation 2)

Putting l's value from equation 1 in equation 2

(8+w)w=513

w^2+8w-513=0

Making Factors

w^2+27w-19w-513=0

w(w+27)-19(w+27)=0

(w-19)(w+27)=0

w=19, w=-27

as width cannot be negative so if we only consider w=19 then

l=8+19

l=27

3 0
3 years ago
The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin
bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, Z_{Critical}=1.645.

We also know that E=5% or E=0.05

Also, since, \hat{p} is not given, we will assume that \hat{p}=0.5. This is because, the formula that we use will have \hat{p}(1-\hat{p}) in the expression and that will be maximum only when \hat{p}=0.5. (For any other value of \hat{p}, we will get a value less than 0.25. For example if, \hat{p} is 0.4, then 1-\hat{p}=0.6 and thus, \hat{p}(1-\hat{p})=0.24.).

We will now use the formula

n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})

We will now substitute all the data that we have and we will get

n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)

n=(32.9)^2\times0.25

n=270.6025

which can approximated to n=271.

So, the brand manager needs a sample size of 271

3 0
3 years ago
Can someone help? It’s for geometry
Maru [420]
What’s your question?
3 0
3 years ago
Read 2 more answers
What is the freezing point of water?
BaLLatris [955]
36 degrees f hope this helps 
3 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose the scientist performs an experiment in which she cools the three gases. Will the changes in temperature be positive or
    7·1 answer
  • Which is the graph of f(x)=x^2-2x+3
    9·1 answer
  • Please help!! thank you
    8·2 answers
  • Em um experimento foram colocados, em um mesmo recipiente, dois tipos de microrganismos, A
    13·1 answer
  • Increase or decrease 32 pages to 28 Pages round to the nearest tenth of a percent
    6·1 answer
  • One of the more famous anecdotes in the field of statistics is known as the "Lady Tasting Tea" and involves the renowned statist
    10·1 answer
  • The Pretty Pizza Company wants to open a new pizza place either on the north side of town or the south side of town. They want t
    14·2 answers
  • Can some one write a system for all of these? it would really help me rn :(
    14·1 answer
  • Please somone tell me the right answer
    6·1 answer
  • A surf shop charges $6 to rent a wetsuit and $12 per hour to rent a surfboard. Write a function to model the cost, c, to rent a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!