Answer:
The area of the square is 20.25 cm²
Step-by-step explanation:
∵ The perimeter of the square is 18 cm
∵ The perimeter of the square = side × 4
→ That means equate 18 by side × 4
∴ side × 4 = 18
→ Divide both sides
∴ Side = 18/4
∴ Side = 4.5 cm
∴ The side of the square is 4.5 cm
∵ Area of the square = side × side
∵ The side of the square = 4.5 cm
∴ Area of the square = 4.5 × 4.5
∴ Area of the square = 20.25 cm²
∴ The area of the square is 20.25 cm²
during a summer rainstorm, the temperature dropped from 87 degrees to 69 degrees. how many degrees did the temperature drop? what was the percent of decrease to the nearest whole percent
how do i factor this?
I don't know how to show the work but the answer is:
2(4x^2+3x-2)
The Organic Chemistry Tutor could help if you need to show your work
A 20 foot ladder leans against a house the base of the ladder is 12 feet from the house. What is the distance from the ground to the top of the ladder?
Answer:
16ft
Step-by-step explanation:
Please see attached diagram depicting the above scenario.
Since the ladder leans against a house, then it forms a right angled triangle while the hypothenus is 20 foot, the distance of the base of the ladder is 12 feet from the house, hence we are required to find the point at which the ladder touches the house I.e height, rep by h.
We will apply Pythagoras theorem to solve the problem.
h^2 = 20^2 - 12^2
h^2 = 400 - 144
h^ 2 = 256
h = √256
h = 16ft
Hence, the distance from the ground to the top of the ladder is 16ft.
Answer:
Answer 16
Step-by-step explanation:
In the diagram below
Answer:
C. B. fhxffucfzyhcdzefyhcesr
(-1,2)(1.17) (3, -4)(1.20)
is this a function or relation
Answer:
relation
Step-by-step explanation:
What is the value of 10/0 . Show & explain why
Answer:
10/0 = 1/0 If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction. In that case, you could convert it into a whole number or mixed number fraction.
Step-by-step explanation:
hope this helps
answer:
10 / 0 =
undefined
step-by-step explanation:
the value of zero is zero. the natural numbers are often defined as beginning with a number like 1.
hope this helped <3 also if wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
HELP MY RSM CLASS IS TOMORROW
Graph the lines given by the following equations:
y=3-1/2x
To calculate the y position given an x value, multiply the x value by -2 and subtract 3.
Answer:
switch the equation around so it looks like the slope intercept form
y= Mx + b
Step-by-step explanation:
y=3 - 1/2x
y= -1/2x +3
so when x = 0 you know this line is at 3 on the y axis
make a point on the graph at (0,3)
also you know that when x=6 they y is zero.. so
make a point on the graph at (6,0)
now draw a straight line between those two points on your graph :)
Solve for x
(-32) × 7x(-4)=x
Answer: X=0
Step-by-step explanation:
X=0
Simplify ( − 32 ) ⋅ ( 7 x ( − 4 ) ) . Tap for fewer steps... Multiply − 4 by 7 . − 32 ⋅ ( − 28 x ) = x Multiply − 28 by − 32 . 896 x = x Move all terms containing x to the left side of the equation. Tap for fewer steps... Subtract x from both sides of the equation. 896 x − x = 0 Subtract x from 896 x . 895 x = 0 Divide each term by 895 and simplify. Tap for fewer steps... Divide each term in 895 x = 0 by 895 . 895 x 895 = 0 895 Cancel the common factor of 895 . Tap for more steps... x = 0 895 Divide 0 by 895 . x = 0
How would I find the x-intercept and the y-intercept for the equation: 6x+5y=−60?
Answer:
use the slope intercept form of the equation
y = Mx +b
Step-by-step explanation:
6x+5y = -60
5y = -6x - 60
y = (-6/5)x -12
now just plug in zero for x in that above equation ... that will be the y intercept -12
and plug in zero for y and solve for x
0 = (-6/5)x -12
12= -6/5x
(-5/6)(12) = x
-10 = x
Think of a number. Add 5 to it, Subtract 3 and add 5 to it. Tell me your answer and I will tell you the number you chose.
Answer: cookie
Step-by-step explanation:
Answer:
9,999,723,143,213,413
Step-by-step explanation:
Is 35% bigger than 1/4?
Answer:
Step-by-step explanation:
yes becaues 1/4 out of a hundred is 25%
What is the slope of the line that passes through the points (4, 7) and (5,8)? Write
your answer in simplest form.
I need help fast ( there’s no answer choices grade 8)
Answer:
The slope is 1.
Step-by-step explanation:
M = Y2 - Y1
X2 - X2
M = 8 - 7
5 - 3
M = 1
1
M = 1
y=1/2√x
y=2x-7
solve by using substitution
Answer:
You can substitute by setting the equations equal to each other.
Use a calculator to solve.
Nick has $3.90 in quarters and dimes, and the total number of coins is 27. How many quarters and how many dimes? Can I have some help with formatting?
Answer:
There are 19 dimes and 8 quarters
Step-by-step explanation: Q= Quarter and D=dimes
q+d= 27; q=.25 and d=.10;
.25q+.10d= $3.90
q= 27-d
.25(27-d)+.10d=3.90 >Distribute .25 through the parenthesis
= 6.75-.25d+.10d=3.90 >Combine like terms
= -.15d=3.90-6.75 >Subtract 6.75 from both sides of the equation
= -.15d=-2.85 >Subtract
= d=19 >Divide both sides by -.15
q= 27-d>>>>> q= 27-19
q= 8
Write the inequality that would represent the following statements.
All real numbers less than 3
All real numbers at least -5
All real numbers at most 2
All real numbers greater than 7
Answer:
Hi! Can I ask you a question?
i need help plz!!!!!!!!!
Answer:
The second one is the correct answer g(x)=-1/4x-1/4
Step-by-step explanation:
Let f(x)=3x^2−5x+1 and g(x)=2x^2+7x−6. Find f(x)+g(x).
To get to work in the morning, Amanda cycles for 10 miles at the rate of 12 mph. She makes a 10 minutes stop for a cup of coffee, and then rides a bus for 15 minutes. The speed of the bus is 45 mph. At what time will Amanda get to work if she leaves home at 8:30 AM?
Answer:
9:45 AM
Step-by-step explanation:
To get to work in the morning, Amanda cycles for 10 miles at the rate of 12 mph.
Time (hours) = Distance/speed
Hence, the time she spends cycling = 10mile/12 mph
= 0.8333333333 hour
Converting to minutes:
1 hour = 60 minutes
0.8333333333 hour =
0.8333333333 hours × 60 minutes/1 hour
= 50 minutes.
Hence, she spends 50 minutes cycling
She makes a 10 minutes stop for a cup of coffee, and then rides a bus for 15 minutes. The speed of the bus is 45 mph.
The total number of minutes she spends to get to work is calculated as:
(50 + 10 + 15)minutes
= 75 minutes.
It takes Amanda 75 minutes to get to work.
At what time will Amanda get to work if she leaves home at 8:30 AM?
= 8:30AM + 75 minutes
= 8:30 AM + 1 hour 15 minutes
= 9:45 AM
Write the coordinates of each point (A through E) on the graph below in (x,y) form.
Coordinates in (x, y)
Point A ( )
Point B ( )
Point C ( )
Point D ( )
Point E ( )
Aimee noticed her plant grew Two-thirds of an inch every week since it sprouted. She created this graph to show its growth.
On a coordinate plane, a graph titled Plant Growth has Weeks Since Sprouting on the x-axis and Height (inches) on the y-axis. Points (3, 2) and (6, 4) are plotted.
Which statement about Aimee’s graph is true?
Answer:do u have the statements
Step-by-step explanation:
Answer:
The answer is A
Step-by-step explanation:
PLS HELP ASAP!! 20 POINTS
Answer:
The construction describe :---
a) The bisector of angle BAC.
The range of the following relation R{(3,-2), (1, 2), (-1,-4), (-1, 2)} is
Answer:
The range is all the y values.
Therefore, the range is : {-4,-2,2}.....I realize choice c has all the y values listed, however, if u have repeating y values, u only have to list it once.
Step-by-step explanation:
A standard number cube that is labeled 1 through 6 is rolled 150 times. What is a reasonable prediction for the number of times it will land on a 3 or a 4?
Answer:
100 times
Step-by-step explanation:
Mathematically, the probability of getting a 3 or 4 is the probability of getting a 3 + probability of getting a 4
Probability of getting a 3 = number of 3/total number = 1/6
Probability of getting a 4 = number of 4/total number = 1/6
Thus, the probability of getting a 3 or 4 is 1/6 + 1/6 = 2/3
So the number of times will be probability multiply by number of rolls
= 2/3 * 150 = 100 times
ILL MARK AS BRAINLESS PLS HELP HURRY WHAT THE AREA
Answer:
72 square inches
Step-by-step explanation:
Area = Length * width
= 12 * 6
= 72 square inches
Answer:
72 sq. in
Step-by-step explanation:
area = length, times, width
12 times 6 = 72
How many terms are there in this linear polynomial? 2 m - n + 3
Answer:
3
Step-by-step explanation:
A term is any part of the equation that is separate from another part. In the equation, 2m - n + 3, 2m is a term because they are not separate, n is a term, and 3 is a term. I hope this helps and I hope it's not wrong but I don't think it is.
Simplify, multiply and divide rational expressions
Answer:
Where is the problem??
Step-by-step explanation:
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Answer:
wow
Step-by-step explanation:
The product of seven and a number increased by five
9514 1404 393
Answer:
7n +5
Step-by-step explanation:
English tends to be ambiguous in statements like this. It is difficult to tell whether we want 5 more than the product, or 7 times the sum. Sometimes punctuation can help make the meaning clear. Assuming the former, a suitable expression is ...
7n +5 . . . . the product of 7 and a number, increased by 5
Kaleb has 45 DVD's in his collection and Eileen has 61. If Kaleb buys 4 new DVD's each month and Eileen buys 2 new DVD's each month, after how many months will Kaleb and Eileen have the same amount of DVD's?
Answer: After 8 months they will have equal number of DVD's.
Step-by-step explanation:
Given: Kaleb has 45 DVD's in his collection and Eileen has 61.
Let x= Number of months
If Kaleb buys 4 new DVD's each month and Eileen buys 2 new DVD's each month , then
Total DVD's Kaleb has = 45+4x
Total DVD's Eileen has = 61+2x
When they has equal DVD's , then
[tex]45+4x =61+2x\\\\\Rightarrow\ 4x-2x=61-45\\\\\Rightarrow\ 2x=16\\\\\Rightarrow\ x=\dfrac{16}{2}\\\\\Rightarrow\ x=8[/tex]
Hence, after 8 months they will have equal number of DVD's.
Emily wants to have her résumé printed. The printing company charges $24.50 for the first 100 résumés, and then a flat rate for each additional 100 résumés. Emily pays $48.50 for 300 résumés. Write a piecewise function that describes this situation. r(x) = and calculate how much is the flat rate for each additional set of 100 résumés after the first 100 résumés are purchased? Please label your answer and round to two decimal places (hundredths) if needed.
Answer:
________{$24.50 if x ≤ 1
r(x) - - - - - {24.50 + f(3 - 2) if x > 1
Flat rate paid for each additional 100 = $12
Step-by-step explanation:
Given that :
Cost of first 100 resume = $24.50
Flat rate for each additional 100 resumes
Total amount paid for 300 resumes = $48.50
Let x = number of sets of 100 resumes
Number of sets of 100 copies = {1, 2, 3}
Since first 100 copies = $24.50
r(x) = cost of printing resume
r(x) = 24.50 if x ≤ 1
Cost of additional 100 equals ;
Let flat rate paid for each additional 100 = f
r(x) = 24.50 + f(3 - 1) if x > 1
________{$24.50 if x ≤ 1
r(x) - - - - - {24.50 + f(3 - 2) if x > 1
The flat rate paid for additional 100 resume ;
(Total amount paid - cost of first 100) / 2
($48.50 - $24.50) / 2
$24 / 2
= $12