Answer:
2x+2
Step-by-step explanation:
It's multiplicative distribution - when you multiply something in parenthesis by another expression, you distributively multiply the expression to the expression in the parenthesis.
what is the value of x?
Answer: The horizontal value in a pair of coordinates how far along the point is. The X Coordinate is always written first in an ordered pair of coordinate (x,y), such as (12, 5).
Step-by-step explanation: Hope This Helps :)
For a example, the value 12 is the X coordinate. And Also called Abscissa.
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
Solve the equation. m + (–4) = –9 5 36 –5 –13
4m + 9 + 5m – 12 = 42. A. m = 5 B. m = 4 C. m = –5 D. m = -4
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:
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
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
)
Help pleaseeeeeee I’m so lost
Answer:
yes no no yes
Step-by-step explanation:
Find the slope of the line through each pair of points
(1, -19), (19, -2)
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!
Help me i don't understand this and i need a answer fast <3
Answer:
what grade r u in?
Step-by-step explanation:
Courtney walks 1 mph slower than Brandi does. In the time that it takes Brandi to walk 6.5 mi, Courtney walks 5 mi. Find the speed of each person
Answer:
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Step-by-step explanation:
Let x = Courtney's walking speed
then
(x + 1) = Brandi's walking speed
:
Time = Distance/speed
Brandi walks 6.5 mi time = Courtney walks 5 mi time
6.5/x + 1 = 5/x
Cross multiply
6.5x= 5(x+1)
6.5x= 5x + 5
6.5x - 5x = 5
1.5x = 5
x = 5/1.5
x = 3.33 mph is Courtney's walking speed
Note that:
(x + 1) = Brandi's walking speed
3.33mph + 1 = 4.33mph
Therefore,
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
The Courtney's walking speed = 3.33 mph. Brandi's walking speed = 4.33 mph.
We have given that,
[tex]6.5x - 5x = 5[/tex]
Courtney's walking speed = 3.33 mph
Brandi's walking speed = 4.33 mph
Let x = Courtney's walking speed
then (x + 1) = Brandi's walking speed
What is the formula time?Time = Distance/speed
Brandi walks 6.5 mi time = Courtney walks 5 mi time.
[tex]6.5/x + 1 = 5/x[/tex]
Cross multiply
[tex]6.5x= 5(x+1)[/tex]
Simplify parenthesis right side
[tex]6.5x= 5x + 5[/tex]
1.5x = 5
Isolate x.
x = 5/1.5
x = 3.33 mph is Courtney's walking speed
(x + 1) = Brandi's walking speed
3.33 mph + 1 = 4.33 mph
Therefore,Courtney's walking speed = 3.33 mph
Brandi's walking speed = 4.33 mph
To learn more about the speed visit:
https://brainly.com/question/4931057
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
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.
find the scalar product of two verton
Å - Git 3} and B-57-2} what is the
magnitude of vector product
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
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:
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:
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.
In the rectangle, find the length of AD.
Answer:
required answer is 9 of your question
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.
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 homeowner uses GGG hours of natural gas heat and PPP hours of heat from a pellet stove to heat her house one month, with a total of 575757 therms of output. How many therms per hour does the pellet stove output
Answer:
0.0792therms/hour
Step-by-step explanation:
Given
Total output per month = 57 therm of output
Required
Total output of the pellet stove in one hour
Since 1month = 24×30 = 720hours
Hence:
57therms = 720hours
x therm = 1hour
Cross multiply
720×x = 57
x = 57/720
x = 0.0792 therms/hr
Hence the pellet stove use 0.0792therms/hour
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
Aubrey is going to see a movie and is taking her 2 kids. Each movie ticket costs $13 and there are an assortment of snacks available to purchase for $4 each. How much total money would Aubrey have to pay for her family if she were to buy 3 snacks for everybody to share? How much would Aubrey have to pay if she bought x snacks for everybody to share?
Answer:
$51
Step-by-step explanation:
do 13*3 because of the 2 kids and the adult then add 12 because of the snacks
hope this helps
Answer:
51 and what?
Step-by-step explanation:
3 x 13 = 39 4 x 3 = 12
39 + 12 = 51
what is x supposed to be, sorry, i suck at variables
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
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:
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
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
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
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.
