Answer:
a = 3, b = - 2
Step-by-step explanation:
Given f(1) = 1 and f(2) = 5, that is
substitute x = 1 and equate to 1, substitute x = 2 and equate to 5
a + b = 1 → (1)
2a + [tex]\frac{b}{2}[/tex] = 5 → (2)
Multiplying (1) by - 2 and adding to (2) will eliminate a
- 2a - 2b = - 2 → (3)
Add (2) and (3) term by term to eliminate a
0 - [tex]\frac{3}{2}[/tex] b = 3
- [tex]\frac{3}{2}[/tex] b = 3 ( multiply both sides by - [tex]\frac{2}{3}[/tex] )
b = - 2
Substitute b = - 2 into (1)
a - 2 = 1 ( add 2 to both sides )
a = 3
Then a = 3 and b = - 2
What is the perimeter of the composite figure?
A. 119.5 cm
B. 85 cm
C. 107.5 cm
D. 97 cm
HELPPP I WILL MARK BRAINLIEST
Answer:
D
Step-by-step explanation:
Answer:
D m-2
Step-by-step explanation:
Because you can see that input is m and the answer is the output
35-2=33
36-2=34
hope this helps!
pls brainliest
Andy is buying a car.
He negotiated a 7% decrease on a £6 500 car.
He will pay the full balance in 12 equal monthly payments.
Calculate the amount paid each month.
Answer:
£503.75
Step-by-step explanation:
Andy is buying a car.
Step 1
We calculate the decrease
He negotiated a 7% decrease on a £6 500 car.
Decrease = 7% × £6500
= $455
Step 2
We calculate the new price of the car.
= Old price - Decrease
= £6500 - £455
= £6045
Step 3
We calculate the amount he pays every month.
We are told that:
He will pay the full balance in 12 equal monthly payments.
Andy's monthly payments =
New price/12 months
= £6045/12
= £503.75
Therefore, the amount he would be paying each new month = £503.75
solve the following equation
-3x = 27
Answer:
x= - 9
Step-by-step explanation:
x = 27 / - 3
x = -9
Hope this helps
Answer:
x=9
Step-by-step explanation:
-3x=27
or, x=27/-3
or, x= -9
What is the rectangle area triangle area
Answer:
1,200 area of rectangle
20 x 40 divided by 2 = 400
both added will be: 1,600
Which set of ordered pairs does not represent a function? {(-3, -3),(-6, -7), (6,-3), (–9, 2)} {(8,–8), (-9,5), (9,-2), (-2,-8)} {(-7, -3), (-6, -1), (-6,8), (6, -6)} {(6,2), (-8,1), (-7,1),(5,-2)}
Step-by-step explanation:
{(-3, -3),(-6, -7), (6,-3), (–9, 2)} {(8,–8), (-9,5), (9,-2), (-2,-8)}
{(-7, -3), (-6, -1), (-6,8), (6, -6)}
WILL GIVE BRILLIANTIEST Select the better deal in the pair. Then give the unit rate for the better deal.
$90 $222
or
3g 69
The (select) y deal is better. The unit rate of the better deal is $
Vg.
Answer:
The first deal is better, unit rate is 30
Step-by-step explanation:
90/3 is 30, 222/6 is 37. 90 is the better deal
1. James has 43 game coins. James has 7 more than 4 times as many game
coins as Steven. If x represents the number of game coins Steven has,
which equation can be used to determine the possible number of game
coins Steven has?
A 7x + 4 = 43
1
B 4x - 7 = 43
a 7 + 4 = 43x
D 4x + 7 = 43
2:15 PM
3/1/2021
Plz help me it due in like ten minutes
3x – 9y = -39
-3x – 7y = -25 systems of elimination
Answer:
y= 4 , x= -1
Step-by-step explanation:
3x-9y= -39
-3x-7y= -25
-16y= -64
y= -64/-16
y= 4
substitute y into any equation
3x -9(4) = -39
3x-36= -39
3x= -39+36
3x= -3
x= -3/3
x= -1
show your work please and thank you best anwser gets brainly
Answer:
a9
Step-by-step explanation:
5+4= 9 and its the same variable.
Convert 1 4/16 into a percent.
Answer:
it is 25 percent
Step-by-step explanation:
Answer:
the answer is 1.25 un decimal
Please help! With explanation! EASY FOR MOST
9514 1404 393
Answer:
(x, y, z) = (124, 112, 42)
Step-by-step explanation:
Opposite angles in an inscribed quadrilateral are supplementary, so ...
y° = 180° -68° = 112°
The angle marked 71° subtends an arc twice that measure, so ...
2(71°) = 100° +z°
z° = 142° -100° = 42°
The angle marked y° subtends an arc twice that measure, so ...
2y° = 100° +x°
x° = 2(112°) -100° = 124°
What is the polar form of 7 StartRoot 3 EndRoot minus 7 i?
In polar form the expression is ( 14 , 30 )
How the rectangular form is converted to Polar form ?To convert the expression x +iy to polar form ( r , [tex]\rm \theta[/tex] ) , the standard equations used are
r = [tex]\rm \sqrt {x^2 + y^2}[/tex]
tan [tex]\rm \theta[/tex] = y/x
The given expression is
7 √3 - 7i
x = 7 √3
y = -7
r = [tex]\rm \sqrt {(7\sqrt{3})^2 +(-7)^2}[/tex]
r = √196
r = 14
tan [tex]\rm \theta[/tex] = (-7)/(7√3)
[tex]\rm \theta[/tex] = 30 degree
Therefore in polar form the expression is ( 14 , 30 ).
To know more about Conversion into Polar form
https://brainly.com/question/27624274
#SPJ2
Answer:The polar form of 7 StartRoot 3 EndRoot minus 7 i is 14(cos(330o) + i sin(330o))
Step-by-step explanation:
True or false
hey is for horses
Answer:
false.
hay is for horses, not hey
Step-by-step explanation:
Charlie is watching hot air balloons Balloon A has risen at a 60° angle Balloon B has risen at an 82 angle. If the distance from balloon A to the ground is 1,400 feet, how far
is balloon B from balloon A? Round your answer to the nearest whole number
Balloon A
Balloon B
Ground
Charlie
999 feet
1,005 feet
1,052 feet
1,102 feet
Answer:
Step-by-step explanation:
Assume that B is directly above A.
x = horizontal distance between Charlie and balloons
= 1400/tan(60°)
altitude of B = x·tan(82°) ≅ 5751 ft
distance between A and B = 5751-1400 = 4351 ft, which doesn't fit any of the choices. So my initial assumption was incorrect.
Is there any other information? A picture?
The distance between balloon A and balloon B is 1005 feet if Charlie is watching hot air balloons Balloon A has risen at a 60° angle Balloon B has risen at an 82 angle option second 1005 feet is correct.
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have:
Charlie is watching hot air balloons Balloon A has risen at a 60° angle Balloon B has risen at an 82 angle
In right angle triangle ACD,
tanx = AC/CD
tan60 = 1400/CD
CD = 808.3
In triangle BDE,
tany = BE/DE
tan82 = 1400/DE
DE = 196.8
The distance between balloon A and balloon B:
= CD + DE
= 808.3 + 196.8
= 1005 Feet
Thus, the distance between balloon A and balloon B is 1005 feet if Charlie is watching hot air balloons Balloon A has risen at a 60° angle Balloon B has risen at an 82 angle option second 1005 feet is correct.
Learn more about trigonometry here:
brainly.com/question/26719838
#SPJ2
can you please help me!
Answer:
113.04
Step-by-step explanation:
All you have to do is substitute the r in the equation.
And of course pi is equal to 3.14
V = 4/3(3.14)3^3
That gives you a volume of around 113.04
10/2
20/2
50/2
100/2
Answer:
10/2 =5
20/2=10
50/2=25
100/2=50
which of the x values are solutions both of the following inequality 30> x and x > 15
Answer:
B and C
Step-by-step explanation:
its the answer trust me
Answer:
22 and 29
Step-by-step explanation:
22 is less than 30 but greater then 15
29 is less than 30 but greater than 15
one of the factor of 36 is
Write and Solve 2 Step Equations. Show all your work
15.) In a week, Tara earns $15 less than three
times what Carrie earns. Tara earns $105.
How much does Carrie earn?
Answer:
Carries earns [tex]40[/tex] dollars
Step-by-step explanation:
Given -
Tara earns $15 less than three times what Carrie earns.
Total earning of Tara [tex]= 105[/tex] dollars
Let "X" be the earning of Carrie
[tex]3X - 15 = 105\\3X = 120\\X = 40[/tex]
Carries earns [tex]40[/tex] dollars
143=n-27. PLZ HELP DUE TOMORROW
Answer:
n=170
Step-by-step explanation:
add 27 to 143
then the equation is n=170
Please help! Really easy math, need it asap!!! It's in the picture
Answer:
answers are: (-1,-2), (1,2), (-1,5), (1,-5). in other words, option 2, 6, 7, and 8.
Step-by-step explanation:
hope it helps
Ramon and his brother go to an amusement park. They each go on the Ferris wheel that costs $6 per ticket and a roller coaster that costs $9 per ticket. Ramon pays for all the tickets. How much does Ramon pay altogether?
Answer:
6+6=12
9+9=18
12+18=30
30 dollars
Answer:
$30
Step-by-step explanation:
6+6=12
9+9=18
18+12=30
I would assume this was the right answer if not i would need more information to go with the question
What is the approximate volume of a sphere with a diameter of 20 feet? Use 3.14 for it.
Answer:
4,188.79 and when its rounded its 4,188.8
Step-by-step explanation:
Volume of a sphere with a diameter of 20 feet is 4189.33 cubic feet.
What is Three dimensional shape?Three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.
Given,
sphere with a diameter of 20 feet
Diameter is two times of radius
Diameter=2Radius
Radius =Diameter/2
Radius = 20/2=10 feet.
Volume of sphere=4/3πr³
π=3.142
Volume of sphere=4/3(3.142)(10)³
=4/3×3.142×1000
=4189.33 cubic feet.
Hence, volume of a sphere with a diameter of 20 feet is 4189.33 cubic feet.
To learn more on Three dimensional figure click:
https://brainly.com/question/2400003
#SPJ2
Alexa surveyed 7 students and found 2 like scary movies.based on this information how many students would like scary movies out of 35 students
responda a expressão 5x+6y+x+2:
[tex]\tt{}5x + 6y + x + 2[/tex]
[tex]\tt{}6x + 6y + 2[/tex]
[tex]\tt{}2(3x + 3y + 1)[/tex]
A new bank customers with 3,000 wants to open a money market account. The bank is offering a simple interest rate of 1.1% a. How much interest will the customer earn in 20 years? b. What will be the account balance after 20 years?
Answer:
$660
Step-by-step explanation:
Choose the model that represents the same function as the graph of f(x)
Answer:
x × 1/2 - 3
Step-by-step explanation:
in slope intercept form an equation is written in y=mx+b where m is the slope and b is the y intercept
from the graph you can see the line goes up 1 and right 2, up 1 right 2, etc. that means the slope is positive 1/2
the line cross the y access at -3, therefore the y intercept is -3
so
[tex]y = \frac{1}{2} x - 3[/tex]
The blue dot is at what value on the number line?
The blue dot is at what value on the number line? PLEASE HELP!
Answer:
-3
Step-by-step explanation:
Answer:
I think it is 0
Step-by-step explanation:
the 9 goes down by 3 so maybe each point goes down 3
केविन अपनी छुट्टी के लिए स्नोबोर्डिंग जाना चाहता था। बताएं कि वह बॉक्स प्लॉट्स से बर्फबारी के आंकड़ों के आधार पर रिज़ॉर्ट ए या रिज़ॉर्ट बी में जाने के बारे में अपना निर्णय कैसे ले सकता है।
Answer: I ate my dogs bone
Step-by-step explanation: