Answer:
240 sq feet
Step-by-step explanation:
for a rectangle
area = length * width
a = 20 * 12
a = 240
240 sq feet
(2x-6)+4(x-3)
Find the sum
Answer:
[tex](2x - 6) + 4(x - 3) \\ 2x - 6 + 4x - 12 \\ 6x - 18[/tex]
hope helpful <3
Find the perimeter of KLM
Answer:
71
Step-by-step explanation:
The congruency statement tells you ...
KL = NO
5x -3 = 4x +7
x = 10 . . . . . . . . add 3-4x to both sides
Then that longest side is ...
4(10)+7 = 47
Corresponding sides are the same length in both triangles. The perimeter is the sum of side lengths:
P = 14 + 10 + 47 = 71
The perimeter of ΔKLM is 71 units.
_____
Additional comment
A triangle with these side lengths cannot exist. The short sides are too short to connect to the ends of the long side. (The long side must be between 14 and 24 units.) I suggest you talk to your teacher about this problem.
Five times a number, added to 7, is 47. Find the Number
Answer:
8
Step-by-step explanation:
8 x 5 = 40 +7 = 47
What is 123X45 I tied but it is hard
Answer:
5,535
Step-by-step explanation:
What is the prime factorization of 990?
2 x 3 x 52 x 11
2 x 3 x 5x 11
2 x 32 x 5 x 11
22 x 3 x 5x 11
Answer:
2 x 3² x 5 x 11
Step-by-step explanation:
990 ÷ 2 = 495 so 2 is one factor
495 ÷ 2 = 247.5 - There is a remainder. So we can't divide by 2 anymore. Use next prime number
495 ÷ 3 = 165 - No remainder. So 3 is one factor
165 ÷ 3 = 55 - No remainder. So 3 is one factor
55 ÷ 3 = 18.3333 - There is a remainder. We can't divide by 3. Use next prime number
55 ÷ 5 = 11 - No remainder. So 5 is one factor
11 ÷ 5 = 2.2 - There is a remainder. We can't divide by 5. Use next prime number
11 ÷ 7 = 1.5714 - This has a remainder. So 7 is not a factor.
11 ÷ 11 = 1 - No remainder. SO 11 is one factor
Now put it together: 2 x 3² x 5 x 11
Factor trees also help. Have a good day or night
CAN SOMEONE PLEASE HELP IM DESPERATE
Answer:
a. x < -3 and x > 1
b. -3 < x < 1
c. h(x) = -50 (x-3)² - 4
Step-by-step explanation:
a. x < -3 and x > 1
b. -3 < x < 1
c. -2g[5(x-3)]-4 = -2 * [5(x-3)]² - 4 = -50 (x-3)² - 4
y=-1/2x+4 y=6
solve systems of equations using substitution method
BEST ANSWER GETS BRAINLY
3³ + (3²) =
ayudaaaaa:(
Answer: 36
Step-by-step explanation:
When handling exponents, we have to remember that we're multiplying a number by itself x amount of times
3^3 + (3^2) Parenthesis first
3^3 + (3 x 3)
3^3 + 9 Next Exponents
3 x 3 x 3 + 9
27 + 9 Add
36
teacher.
1. If the hydrogen ion concentration is a measure of the strength of an acid, how much stronger is
an acid like lemon juice with a pH of 2 than an acid like urine which has a pH of 5.5?
2. A 1998 Pontiac Grand-Am depreciates in value by 18% on average each year. If the car
originally sold for $19995 in 1998, how much would the car be worth in 2012?
3. The newest gossip spreads through Meaghann's high school like wildfire. The number of
students who have heard the news triples every two minutes, thanks mostly to texting. If the
gossip started with just one person, how long would it take before the entire school of 1200
students hears the news?
The three questions are illustrations of arithmetic operations and geometric progressions
(1) Acid concentration
The given parameters are:
pH of acid lemon juice = 2
pH of acid urine = 5.5
The difference between their pH is calculated as follows:
Difference = 5.5 - 2
Difference = 3.5
Multiply the difference by 10, to calculate the acidity
Acidity = 3.5 * 10
Acidity = 35
Hence, the acid like lemon juice is 35 times stronger than urine
(2) Depreciation
The depreciation is given as:
r = 18%
In 1998, the car's worth is $19995.
This is represented as:
a = 19995
2012 is 14 years from 1998.
This is represented as:
n = 14
So, the worth of the car in 2014 is calculated using:
[tex]\mathbf{Worth =a(1 -r)^n}[/tex]
So, we have:
[tex]\mathbf{Worth =19995 \times (1 -18\%)^{14}}[/tex]
Express percentage as decimal
[tex]\mathbf{Worth =19995 \times (1 -0.18)^{14}}[/tex]
[tex]\mathbf{Worth =19995 \times 0.82^{14}}[/tex]
Evaluate
[tex]\mathbf{Worth =1243}[/tex]
Hence, the worth of the car in 2012 is $1243
(3) Spread of Gossip
The spread of the gossip is an illustration of geometric progression, where
a = 1 ---- the first term
r = 3 --- the common ratio
L =1200 --- the last term
So, we calculate the number of terms from 1 to 1200 using the following nth terms of geometric progression
[tex]\mathbf{L = ar^{n-1}}[/tex]
This gives
[tex]\mathbf{1200 = 1 \times3^{n-1}}[/tex]
[tex]\mathbf{1200 = 3^{n-1}}[/tex]
Take logarithm of both sides
[tex]\mathbf{log(1200) = log(3^{n-1})}[/tex]
Apply law of logarithm
[tex]\mathbf{log(1200) = (n-1)log(3)}[/tex]
Divide both sides by log(3)
[tex]\mathbf{n - 1 = log(1200) \div log(3)}[/tex]
[tex]\mathbf{n - 1 =6.45}[/tex]
Add 1 to both sides
[tex]\mathbf{n =7.45}[/tex]
Since the gossip spreads every two minutes.
The total time is:
[tex]\mathbf{Total =2minutes \times 7.45}[/tex]
[tex]\mathbf{Total =14.9\ minutes}[/tex]
Hence, it will take 14.9 minutes for the gossip to spread to 1200 students
Read more about geometric progressions at:
https://brainly.com/question/14320920
Landon drove 40 miles in 1 1/4 hours. If he drove at a constant rate, how far did he travel in one hour?
9514 1404 393
Answer:
32 miles
Step-by-step explanation:
To find miles per hour, divide miles by hours.
40 mi/(1.25 h) = 32 mi/h
At that rate, Landon traveled 32 miles in 1 hour.
The quotient of fifteen and five subtracted from seven
Answer:
4
Step-by-step explanation:
7 - (15 / 5)
7 - (3)
= 4
if you like my answer please mark me brainliest!! thanks <3
Bottles of sparkling water usually cost $1.69 each. This week they are on sale for 4 for $5. You bought one last week and one this week. Did you pay more or less for the bottle this week?
Answer: You payed less this week because if you divide 5 divided by 4 you get $1.25 for a bottle and last week you payed $1.69 so overall you saved money this week than last week
Step-by-step explanation: Read Above
Answer: You paid $0.44 less for the bottle this week than last week.
Step-by-step explanation: You paid $0.44 less for the bottle this week than last week.
In order to know if you paid more or less than you did the week before for the water, you need to find the unit cost this week.
This week you could buy 4 bottle for $5 which means that the effective cost of one bottle is:
= Cost / Number of bottle
= 5 / 4
= $1.25 per bottle
Last week you paid $1.69 for the bottle but this week you paid $1.25.
Difference is:
= 1.69 - 1.25
= $0.44
In conclusion, you paid $0.44 less for the bottle this week than the last week.
Feng is saving money each week. Feng's savings are represented by the graph below. Find the rate of change.
Answer:
I can't see the graph but to find the rate of change find the change in y over the change in x. So the difference between two y-coordinates, and the difference between two x-coordinates. It's also the same as finding the slope of the line.
The owner of Bond's Gym has paid you to carry out a survey of potential customers. You asked 600 potential customers what price they would be willing to pay to join the gym. Then, the owner provided you data about the number of customers that can be admitted as members at each membership price.
This allowed you to create a combined supply and demand schedule for Bond's.
Supply and Demand Schedule
Membership Price Membership Applications Memberships Available
$0 600 0
$15 450 100
$30 300 200
$45 150 300
$60 0 400
1. Using the data in the supply and demand schedule, create demand and supply curves for Bond's Gym on the following graph. Be sure to use textboxes to label the supply curve as S and the demand curve as D. (10 points)
2. Is the demand curve shallow or steep? What does this mean about the elasticity of the demand for memberships? (5 points)
3. Is the supply curve shallow or steep? What does this mean about the elasticity of supply for memberships? (5 points)
Section 2: Equilibrium and Incentives
Now, you will graph a recommended course of action for Bond's Gym.
1. Create a graph that demonstrates equilibrium and excess demand. Make sure your graph includes the same supply and demand curves that you just created. In addition, label the point of equilibrium, draw a line showing the current price at Bond's ($10), and label the excess demand on the graph. (10 points)
2. Based upon the graph you created, what price should Bond's Gym charge for memberships in order to reach equilibrium? (5 points)
3. If Bond's Gym raises prices to your recommended price, how will this affect demand for their product? (5 points)
Answer:
Step-by-step explanation:
A soft drink machine outputs a mean of 28 ounces per cup. The machine's output is normally distributed with a standard deviation of 3 ounces. What is the probability of putting less than 33 ounces in a cup? Round your answer to four decimal places.
Answer:
0.7745
Step-by-step explanation:
Can a triangle have sides with the given lengths? Explain.
a = 6 yd, b = 9 yd, c = 11 yd
Answer:
Step-by-step explanation:
Use the cosine rule and see if the numbers hold true. a^2 = b^2 + c^2 - (2bc (cos x))
By substituting in our values I get that cos x = 0.838... which is possible. If cos x would equal 1.5, the there is no solution and the triangle would not be possible.
change 480 cm to metres
Margo can purchase tile at a store for $0.99 per tile and rent a tile saw for $18. At another store she can
borrow the tile saw for free if she buys tiles there for $1.29 per tile. How many tiles must she buy for the
cost to be the same at both stores?
Answer:
.79x+24=1.29
took way long then it should my fault but 1.29-.79=.5
x=18/.5
x=36 sorry for taking so long and this the answer i just answered it in a weird way sorry
Step-by-step explanation:
Write an equation in slope-intercept form of the line shown
Answer:
y = -1/4x + 5/4
Step-by-step explanation:
the slope is -4, and the y intercept looks to be about 1.25 if that helps
need help ASAP it due today
Answer:
3/4
Step-by-step explanation:
Sara made a withdrawal of 80$. Tom deposited 47.50.. which transactions involved more money?
Answer:
I don’t know bums
Step-by-step explanation:
y’all dum
What equation represents the proportional relationship displayed in the table?
Answer:
x=6y
Step-by-step explanation:
For each x the y would go up 6.
The sum of three numbers is 18. The sum of twice the first number, 5 times the second number, and 6 times the third number is 79. The difference between 8 times the first number and the second number is 43. Find the three numbers.
Answer:
The three numbers are 5,6&7
(b). Find the values of a and b that make f continuous everywhere.
X^2+6x + 5/x^2-3x-4, X<-1
ax^2- bx +3, -1<=x<=3
2x-a+b, x>=3
Answer:
a=-13/10
b=-5/2
Step-by-step explanation:
In a class 10 students like salad. if 40% of the students like salad, how many students are in the class?
Answer:
I believe the answer is 60%
Step-by-step explanation:
Since let's think this was 10 students=100% if 40% of students went to eat salad there should only be 60% of students left.
Please mark brainliest if I helped it means a lot to me.:)
I need help I don’t understand this question
Answer:
-1
Step-by-step explanation:
0 - (-1) + (-2) = 1 - 2 = -1
What is the missing constant term in the perfect square that starts with x^2+6xx
2
+6xx, squared, plus, 6, x ?
19. Select numbers to create a different
expression that is equal to 7 x 9.
2
3
4
6
8
9
7x9=(x 9)+(x)
Step-by-step explanation:
7 × 9 = (? × 9) + (? × ?)
7 × 9 = (3 × 9) + (4 × 9) or (4 × 9) + (3 × 9)
The required numbers are 3, 4, and 9 to create the expression that is equal to 7 × 9.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
What is the number system?A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9. Based on the basic value of its digits, different types of number systems exist.
We have been given numbers are 2, 3, 4, 6, 8, and 9.
To determine numbers create a different expression that is equal to 7 × 9.
Here substitute the numbers 3, 4, and 9, and we get
⇒ 7 × 9 = (3 × 9) + (4 × 9) = 63
⇒ 7 × 9 = (4 × 9) + (3 × 9) = 63
Therefore, the required numbers are 3, 4, and 9 to create the expression that is equal to 7 × 9.
Learn more about the number system here:
https://brainly.com/question/21751836
#SPJ2
Graph this please any math expert please thank you
Answer:
we cant see the picture but if i could i would have solved it
Step-by-step explanation:
we cant see the picture n
help me in zearn please
Answer:
Diameter: 25.6
Circumference: 80.38
