Answer:
x^2+x-12
Step-by-step explanation:
x^2-3x+4x-12
x^2+x-12
Three interior angles of a polygon are 125,140 and 160. The remain angles are 145 each. Calculate the sum of the interior angles of the polygon
Answer:
1440 degrees.
Step-by-step explanation:
125 + 140 + 160 = 425 degrees.
The remaining angles are each 145.
The exterior angles of all polygons sum to 360 .
So we have exterior angles sum of the 3 given angles
= (180-125) + ( 180-140) + (180-160)
= 55 + 40 + 20 = 115.
So the remaining vale of the sum is 360 - 115
= 245 degrees.
An internal angle of 145 will give an external one of 35 degrees.
245/35 = 7.
So there are 7 145 degree angles in the polygon.
Sum of the interior angles is therefore:
425 + 7*145
= 1440 degrees.
This is a 10 sides polygon ( a decagon).
Imani family drinks a total of 8 gallons of milk every 5 weeks how many gallons does the family drink per week plz help
Answer:
1.6 gallons every week
Step-by-step explanation:
ratio of milk to weeks is 8:5
to get milk/week, divide by 5 to get:
1.6:1
which means they drink 1.6 gallons per week
Which equations are true for x = –2 and x = 2? Select two options x2 – 4 = 0 x2 = –4 3x2 + 12 = 0 4x2 = 16 2(x – 2)2 = 0
The equation x² - 4 = 0 and 4x² = 16 have roots of x = -2 and 2 so option 1st and 4th are correct.
What are the roots of an equation?Roots of an equation are the solution of that equation, since an equation consists of hidden values of the variable so to determine them by different processes and then the resultant is called roots.
For example root of x -4 = 0 is x = 4 so 4 will be the only root of this linear equation.
The number of roots of an equation depends on the degree of the equation for example number of roots of quadratic equation are 2.
Given the roots
01)
x = -2
square both sides
x² = 4
x² - 4 = 0
02)
x = 2
Square both sides
x² = 4
Multiply by 4 on each side
4x² = 16
Hence "The equation x² - 4 = 0 and 4x² = 16 have roots of x = -2 and 2".
To learn more about the roots of equation,
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Someone can help me with this
Answer:
hrhrh4vguaiwjnbbbhhhhh
Step-by-step explanation:
jrrjbbdjhtvb4sjjfjjjejsjuhfhrbdhksopapdkbrbhfhhxizidjjdjkkwkalqlpqpwkjdhbdnMsmnznxbbfjsjddheb5vgguyy5
5. Find the measure of the missing angle.
40°
50°
Step-by-step explanation:
40° + 90° + ? = 180°
130° + ? = 180°
? = 180° - 130°
? = 50°
Answer: 50 degrees
Step-by-step explanation: The interior angles add up to 180.
1. 40 + 90 + ? = 180
130 + ? = 180
-130 - 130
? = 50
Which arrangement shows264, 6.45, 625, and508 in order from least to greatest?
A. 508, 625,264, 6.45
B. 508, 625, 6.45, 264
C. 264, 508, 625, 6.45
D. 625, 508, 6.45, 264
PLZ help I really need answer ill make you brainliest
Answer:
C.264,508,625,645
Step-by-step explanation:
the arrangement is from the least number to the greatest
7 / 9 ×(− 8 / 9 ) fraction form pls help fast like i really need this pls
Answer:
-7/8
= (7/9) × (-9/8)
=-7/8
BRIANLIST ANSWER pls help i meant to put science
Answer:
I'd say Yev's description is best because it's the most specific to what it actually is in terms of science, while everyone else's descriptions are more like examples of different types and stages of energy, and where it could be found.
Hope this makes sense to ya :)
the sum of three numbers is 106. the first number is 6 less than the second. the third is 2 times the first
Answer: 31/25/50
Explanation: 31 is the second one. 6 less than second is 25 which is the first one, and third is 2x the first so 50
50 + 25 + 31 = 106
Help how do you do this?
Solve for X: -3X + 2 + 5X - 3 = 8 + 9
Answer:
9
Step-by-step explanation:
-3x+2+5x-3=8+9
2x+-1=17
2x=18
so x equals 9
50 = -1/3b + 20
What is b?
TIMED ASSIGNMENT PLS ANSWER ASAP ILL MARK BRAINLIEST
Answer:
the answer is c
Step-by-step explanation:
1 hour=60 minutes
60/6 minutes= 10
10 x 3 = 30 minutes
half hour= 30 minutes
30/6 = 5
5 x 3= 15 minutes
30 +15 = 45 minutes
Solve for x.
A) 9
C) 10
E) 6
B) 15
D) 4
i need help. i am so confused
Answer:
a/2=3
We simplify the equation to the form, which is simple to understand
a/2=3
We move all terms containing a to the left and all other terms to the right.
+ 0.5a=+3
We simplify left and right side of the equation.
+ 0.5a=+3
We divide both sides of the equation by 0.5 to get a.
a=6
cuanto es 1/3 mas 3/4 mas 1/2 lo necesito por favor ;_;
Answer:
19/12= 1 7/12
Step-by-step explanation:
HELP
Karen's music library contains 18 fewer playlists than Clarann's music library. The total number of playlists on both music libraries is 40. Find the number of playlists on each person's music library.
Answer:
let Karen's music library be represented by K
let Clarann's music library be represented by C
C = K +18
C +K =40
put C = K +18 into (C +K =40)
K + 18 +K =40
2K +18 = 40
collect like terms
2K =40 -18
2K =22
divide both sides by 2
K =11
since C = K+18
C= 11 +18
C =29
Karen's music library contains 11 playlists while Clarann's music library contains 29 playlists
A ride sharing company offers two options: riding in small cars that can carry up to 3 passengers each, or riding in large vans that can carry up to 6 passengers each. A group of 27 people is going to use the ride sharing service to take a trip. The trip in a small car costs $10 and the trip in a large van costs $15. The group ends up spending $80 total. An equation that represents one of the constraints is 3x+6y=a. What is the value of a?
Answer:
a = 27
Step-by-step explanation:
3x + 6y = a
From the given information, 3 and 6 are the numbers of passengers that cars and vans can take. That means x and y must be the numbers of cars and vans, and a is the total number of passengers.
a = 27
The time, in minutes, that it takes Mark to bake cookies is given by t = 15 + 10d, where d is dozens of cookies. How long would it take Mark to bake 48 cookies?
Answer:
55
Step-by-step explanation:
15+10d
15+10(4)
15+40
55 minutes
It will take 55 minutes for Mark to bake 48 cookies.
15+10d
15+10(4)
15+40
55 minutes
How long does it take to bake a cookie?
Simply put, you can expect to bake cookies at 350 degrees Fahrenheit for 8-12 minutes. However, there are some things to consider when baking biscuits. The type of biscuit, the size of the biscuit, and the content of the fabric.
Preheat the oven to 350 ° F (or 325 ° F for a non-stick baking sheet). Place the cookie dough base about 2 inches apart on a non-oiled sheet pan. BRAKE for 10-14 minutes or until light brown. Cool 2 minutes; Remove from the top plate.
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-5g - 6 for g =2
please help
A:4
b:16
C:10
D: -13
Answer:
-16
Step-by-step explanation:
-5g - 6
-5(2) - 6
-10 - 6
-10 + (-6)
-16
The table below shows Aubree's earnings on the job.
Time (hours) Earnings (dollars)
4
$84.40
18.
$379.80
28
$590.80
How long does it take her to make $137.152
hours
Suomit Answers
Answer
Answer:
6.5 hours
Step-by-step explanation:
the pay per hour is $21.1
137.15÷21.1=6.5
0.12222 as a fraction
Use a factor tree to find the GCF of 32 and 80.
Answer:
GCF of 32 and 80 is 16
Step-by-step explanation:
factors of 32 = 1, 2, 4, 8, 16, 32
factors of 80 = 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
Robin works as a customer service representative. She knows that the
amount in dollars of her yearly bonus is represented by the expression - 1.25x + 651, where x is the
number of complaints customers had about her during the year. To find her bonus if she gets 12
complaints, she substitutes 12 for x. What should be her next step? What would her bonus be?
Answer:
multiply -1.25 x 12
Sense a negative and a positive will always be negative when dealing with multiplication you'll get -15
now -15 +651= 636
always take the sign of the biggest number.
On a shopping trip, Gina buys two books priced $4.99 and $12.99. She also buys 2 notebooks, 2 packs of pencils, and 3 composition books. The books are on sale for 10% off the list price and school supplies are 15% off. The store charges 6.5% sales tax.
Item Cost ($)
Notebooks 2.88
Composition Books 0.79
Pencil Packs 1.89
How much total will Gina spend on her shopping trip? Round to the nearest cent.
Answer:
$28.00
Step-by-step explanation:
$4.99 + $12.99 = $17.98 with 10% of discount =$16.18
$2.88 (2) + $0.79 (3) + 1.89 (2) = $11.91 with 15% of discount = $10.12
$16.18 + $10.12 = $26.30 with 6.5% sales tax = $28.00
Which of the following is a
representation of 12!
A. 12*11*10*9*8*7*6*5*4*3*2*1
B. 12+11+10+9+8+7+6+5+4+3+2+1
C. 12-11-10-9-8-7-6-5-4-3-2-1
Answer:
A
Step-by-step explanation:
because 12 factorial is multiplication of all numbers upto 12
y=5+2x when x=4, what does
/
y equal
Answer:
y = 13
Step-by-step explanation:
Y = 5 + 2x but when x = 4 you replace any X variables with 4
So the equation now is 5 + 2(4) = 5 + 8 = 13
y = 13
hope with helped :)
Which of the following statements are not true?
Answer:
1.false. 2.true 3.false 4.true
For each problem, decide whether the circumference of the circle or the area of the circle is
most useful for finding a solution. Explain your reasoning
a. A car's wheels spin at 1000 revolutions per minute. The diameter of the wheels is 23
inches. You want to know how fast the car is travelling. Select)
b. A circular kitchen table has a diameter of 60 inches. You want to know how much fabric is
needed to cover the table top. Select)
c. A circular puzzle is 20 inches in diameter. All of the pleces are about the same size. You
want to know about how many pieces there are in the puzzle.
[ Select)
d. You want to know about how long it takes to walk around a circular pond.
[ Select
solved for x?
ax - b = x
-
Answer:
ax - b = x
+b +b
ax/a = c/a
d=x
Step-by-step explanation:
There are no numbers so I can't give a specific answer so I substituted numbers with letters :)
Find the slope and y-intercept for a line passing through the following two points, then create a slope intercept equation.
(5,3) and (4,5)
Slope=
Y-intercept=
Slope intercept equation=
Answer:
Slope = -2
Y-intercept = 13
y = -2x + 13
Step-by-step explanation:
(5-3)/(4-5) = 2/-1 = -2
3 = -2(5) + b
3 = -10 + b
b = 13
y = -2x + 13