Answer:
2nd one is the equation.8x=2
You have a square that has a side length of $1$ centimeter. Each minute, $2$ centimeters are added to the side length. After $10$ minutes, what will be the difference between the area of the last square and the area of the initial square in square centimeters (do not include the units in your answer)?
Answer:
Difference in area of the last square and the initial square = 440 cm²
Step-by-step explanation:
Length of the side of a square = 1 cm
Area of the square = (side)² = 1 cm²
Addition of side length every minute = 2 cm
After x minutes length of each side of the square = (1 + 2x) cm
If x = 10 minutes
Length of each side of the square = [1 + 2(10)]
= 21 cm
Area of the square after 10 minutes = (21)²
= 441 cm²
Therefore, difference in area of the last square and area of the initial square
= 441 - 1
= 440 cm²
Find the perimeter of this quarter circle with radius
Find the perimeter of a quarter circle with radius, r = 80mm.
Give your answer as an expression in terms of π.
Answer:Perimeter of a quarter circle with radius
To find the perimeter of the quarter circle, find the circumference of the whole circle, divide by 4, and then add the radius twice. To find the radius when you are given the area of the quarter circle, multiply the given area by 4, then plug this number in for A into the formula A = pi * r^2 and then solve for r.
I HOPE THIS HELPS
The school store sells pens for $0.70 each and pencils for $0.30 each. Anthony spent $2.70 to buy a total of 5 pens and pencils.How many pencils
did Anthony buy? ___ pencils
Answer:
Pencils=2
Step-by-step explanation:
Pencils-n
-0.70 - 0.70 = -3.5
0.70p + 0.30 = 2.7
-0.4n = -0.8
-0.4 -0.4
n=2
Please help I need this answered now
Answer:
D
Step-by-step explanation:
8^2 +12^2 = hyp ^2
64 +144 = hyp^2
208 =hyp ^2
Hyp = 4 root 13
x = sqaureroot of ( 18^2 + (4 root 13)^3)
x = sqaureroot of (324 +208)
x = sqaureroot of 532
x = 2 root 133
x = 23.065
x = 23
Please gimme brainliest
HELP! ASAP!! Will Mark brainliest!
Answer:
The Answer is D.
Step-by-step explanation:
The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.The answer is D and credit goes to munequitarachel.
Help me i don't understand this and i need a answer fast <3
Answer:
what grade r u in?
Step-by-step explanation:
Jessica is making party punch. The recipe calls for 1 3/4 cups of cranberry juice. How many fluid ounces is this?
Which student is correct?
Student A is correct, this is because 1.75 cups converts to 14 fluid ounces.
Which of the following are terms in this expression? Select all that apply.
2+8c+d+b
HELPPPPPP I HAVE 20 MINUTES LEFT
Answer:
2, 8, c, b, dStep-by-step explanation:
Terms are any numbers or variables that represent numbers. In other words, 2, 8, c, d, and b are all the terms of this expression.
Where another question helpppppppp plssssss
Answer:
41.1 = dekagrams
4.14 = hectograms
0.414 = kilograms
Answer:
I agree with the other person
Step-by-step explanation:
Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. Irene's car had 6.2 gallons in the 15-gallon tank on the coldest day of the year. Irene filled the tank with gas that cost $3.50 per gallon. How much did Irene spend on gas?
Answer:
She spend $21,70 on gas
Step-by-step explanation:
6.350=2100
$21,00 for 6 gallons
350:10=35
0,35
035.2=070
0,70
2100+70=2170
The tables represent two linear functions ina system
What is the solution to this system?
(-13/3,-25) (-14/3,-54) (-13,-50) (-14,-54)
Answer: i think it’s option D i might be wrong
Step-by-step explanation: i think it’s option D i might be wrong
The population of a certain community is known to increase at a rate proportional to the number of people present at time t. If the population has doubled in 5 years, how long will it take to triple?
Answer:
[tex]t=7.85 years[/tex]
Step-by-step explanation:
We can write this rate as an ordinary differential equation.
[tex]\frac{dP}{dt}=aP[/tex]
Where a is proportional constant, P the population variable, and t the time.
[tex]\frac{dP}{P}=adt[/tex]
Integrating each side of the equation.
[tex]\int \frac{dP}{P}=\int adt[/tex]
[tex]ln(P)=at+c[/tex]
[tex]P=e^{at+c}[/tex]
[tex]P=e^{c}e^{at}=Ce^{at}[/tex]
To find C we need to use the initial condiction, it means evaluae P at t=0.
[tex]P_{0}=Ce^{0}=C[/tex]
[tex]P=P_{0}e^{at}[/tex]
Now, we use the sentence the population has doubled in 5 years.
[tex]2P_{0}=P_{0}e^{a5}[/tex]
We can find "a" in this condition.
[tex]2=e^{a5}[/tex]
[tex]ln(2)=a5[/tex]
[tex]a=\frac{ln(2)}{5}[/tex]
[tex]a=0.14[/tex]
Finally, let's find how long will it take to triple.
[tex]3P_{0}=P_{0}e^{0.14t}[/tex]
[tex]3=e^{0.14t}[/tex]
[tex]t=\frac{ln(3)}{0.14}[/tex]
[tex]t=7.85 years[/tex]
I hope it helps you!
find the scalar product of two verton
Å - Git 3} and B-57-2} what is the
magnitude of vector product
which expression is equivalent to 15+8x+3+2x
Answer:
10x + 18
Step-by-step explanation:
First, we need to add like terms. Like terms are terms that are alike. For instance 8x and 2x are like terms. 15 and 3 are also like terms.
So, we have to add 8x plus 2x and 15 plus 3. That’s comes out to 10x plus 18.
Therefore, this expression is equivalent to 10x + 18.
Solve the following equation for x.
5x + 15 = - 45
Answer:
-12
Step-by-step explanation:
5(-10)=-60
-60+15=
-45
Answer:
-12
Step-by-step explanation:
Reorder the terms:
15 + 5x = -45
Solving
15 + 5x = -45
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + 5x = -45 + -15
Combine like terms: 15 + -15 = 0
0 + 5x = -45 + -15
5x = -45 + -15
Combine like terms: -45 + -15 = -60
5x = -60
Divide each side by '5'.
x = -12 :)
CJ walks 8 miles in 3 hours. at what unit rate does CJ walk? Please only answer is you understand the question
Answer:
B
Step-by-step explanation:
I had this on my previous test, lol
PLEASE HELP ME
Determine each percentage by writing a proportion. Round to the nearest tenth if necessary.
9. What % of 30 is 21?
Answer:
70%
Step-by-step explanation:
21 ÷ 30 = 0.7 = 70%
Please mark me Brainliest! :)
Answer:
Step-by-step explanation:
21/30 * 100 = percentage
Percentage = 70%
21 is 70% of 30
:D
What do you do if the divisor (the number you're dividing
by) is greater than the dividend (the number that is
being divided)?
Answer:
you can use decimals
Step-by-step explanation:
Solve
4(3x − 2) = 52
Answer:
x=5
Step-by-step explanation:
4×3x=12x
4×-2=-8
(12×x)-8=52
So you balance it to make it:
12x=60
60÷12=5
I hope this helps and please give brainliest and thank me
Step-by-step explanation:
Open bracket
use 4 to multiply what is in the bracket
12x - 8 = 52
collect like terms (CLT)
12x = 52 + 8
12x = 60
divide both sides by 12
x = 5
Linear Inequalities Unit Test answers please I cant figure out almost all of it im from pearson online academy and ive been studying for weeks but still dont understand the material
Answer:
without any questions i cant answer
Step-by-step explanation:
A={b,l,o,u,s,e} and U={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}.
Answer:
oof
Step-by-step explanation:
Blouse
The Alphabet
You need to lower your debt to credit limit ratio by $1,000. Your current limit is $1,400. $1,000 is what percent of your credit limit?
Answer:
1,000 of 1,400 is 71.43%
Justine drew a scale drawing of a house and its lot. The scale of the drawing was 1 inch : 6 feet. In the drawing, the backyard is 8 inches long. What is the length of the actual yard? QUICKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
Answer:
48 inches
Step-by-step explanation:
1 inch is 6 feet.
8 inches would be 48 feet.
There are 23 students in a sixth-grade class. Nine students play hockey.
What is the ratio of students who do not play hockey to the total amount of
students? (6.RP.1)
point
O 9 to 23
O 14 to 23
O 14 to 9
O 9 to 14
Answer:
14:23
Step-by-step explanation:
14:23
Answer:
its 14-23
Step-by-step explanation:
Find all solutions to the equation.
7sin2x - 14 sin x + 2 = -5
Answer:
Step-by-step explanation:First, group and combine like terms:
x
3
+
2
x
2
+
7
x
2
+
14
x
→
x
3
=
(
2
+
7
)
x
2
+
14
x
x
3
+
9
x
2
+
14
x
Next, factor out an
x
from each term in the expression:
(
x
⋅
x
2
)
+
(
x
⋅
9
x
)
+
(
x
⋅
14
)
→
x
(
x
2
+
9
x
+
14
)
Because
7
+
2
=
9
and
7
⋅
2
=
14
we can factor the quadratic term as:
x
(
x
+
7
)
(
x
+
2
)
1. In a parallelogram ABCD, AD=12cm. if the altitudes corresponding
to sides AB and AD are respectively 8cm and 7cm find AB.
Answer:
10.5 cm
Step-by-step explanation:
area of parallelogram = Bh
12 x 7 = AB x 8
AB = 12x7 / 8 = 21/2 = 10.5
Find the slope of the line through each pair of points
(1, -19), (19, -2)
If the simple interest on $6,000 for 10 years is $5,400, then what is the interest rate?
Answer:
9%
Step-by-step explanation:
p*r*t = Interest
$6000*x*10 years = $5400
interest ÷ time ÷ principal = rate
5400 ÷ 10 ÷ 6000 = 0.09
0.09 = 9%
A bag contains 15 blue marbles, 5 red marbles, and 11 green marbles. How many blue marbles must be removed from the 31 marbles in the bag so that the probability of randomly drawing a blue marble is 1/3?
1. 7
2. 12
3. 6
4. 9
5. 11
Answer:
7
Step-by-step explanation:
In the rectangle, find the length of AD.
Answer:
required answer is 9 of your question
