Answer:
2x^2=-10x +12
2x²+10x-12=0
2(x²+5x-6)=0
x²+6x-x-6=0/2
x(x+6)-1(x+6)=0
(x+6)(x-1)=0
either
x=-6
x=1
What is the volume of this right cone?
27 cm
200cm
213 cm
300 cm
A farmer goes to the market
with $100 cash. He must buy
exactly 100 animals. There are
cows, geese and chicken for
sale. A cow costs $15, a goose
is $1 and a chicken costs $0.25.
He must buy at least one of
each animal and has to spend
all his money. What does the
farmer buy?
Answer: 6 cows,8 chickens,8 goose
Step-by-step explanation: Add 15+.25+1=16.25
16.25x4=65+35-32.5=2.5
6 animals each right now
6 cows
8 chickens
Calculate or Simplify the value of each expression
a {-8} . 2/3
b {-8} .-2/3
c -18/3
d 18/-3
e -18/-3
Answer:
Step-by-step explanation:
[tex]b) (-8)*\frac{-2}{3}=\frac{(-8)*(-2)}{3}=\frac{16}{3}=5\frac{1}{3}\\\\c) \frac{-18}{3}= -6\\\\d) \frac{18}{-3}=\frac{6}{-1}= -6\\\\e) \frac{-18}{-3}=\frac{18}{3}= 6[/tex]
3+ (5+4)= 3+ (4+5) illustrates which property? A.Commutative property of multiplication. B. dentity property of addition Associative property of addition. C. Commutative property of addition
Answer:
A, commutative
Step-by-step explanation:
Commutative property means that you can switch around the numbers, and get the same answer. However, the commutative property is only compatible for addition and multiplication. I.e. 2+6 equals 6+2, but 2-6 does not equal 6-2.
Solve for y. 18y=126
In order to solve for y, we need to do the inverse operation (basically the opposite) of multiplication, which is division. So therefore, we divide both sides by 18 in order to get [tex]y = 7[/tex].
We plug in and check.
[tex]18 * 7 = 126[/tex]
which is correct.
arrange the following is ascending order -12 8 -14 6 0
Answer:
-14, -12, 0, 6, 8
Step-by-step explanation:
Answer: -14, -12, 0, 6, 8
Step-by-step explanation:
This is correct because -14 is the number with the smallest value so it belongs last. Then comes -12, 0, 6, 8.
Hope this helps ;)
What is the area of this triangle?
CAN YOU HELP ME,TYvery much
Answer:
C
Step-by-step explanation:
(x-3)+7
Answer:
A
Step-by-step explanation:
b would +3 which is not right
c is also right...
d would be -x which is not right
A tailor uses 225/8 yards of fabric to make four suits. The fabric costs $44.50 per yard. How much does the tailor pay for fabric to make the four suits? A $100.68 B $67.13 C $1,006.81 D $268.50
Total cost:-
[tex]\\ \sf\longmapsto 225/8(44.5)[/tex]
[tex]\\ \sf\longmapsto 28.1(44.5)[/tex]
[tex]\\ \sf\longmapsto 1251.5\$[/tex]
Recheck the question options
mikey usually buys a box of 18 candy bars for 12.49 whats the unit rate of price per candy bar
Answer:
1.44
Step-by-step explanation:
1 box 18 candy bars each box 12.49
18 divide by 12.49 equals 1.44 each candy bars
Which expression is equivalent to
x
2
−
28
x
+
196
?
Answer: (x+14)^2
Step-by-step explanation:
How can you use the properties of equality to write equivalent equations?
If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal. When you solve an equation, you find the value of the variable that makes the equation true. In order to solve the equation, you isolate the variable.
a = b and c ≠0, then a c = a c . Another example Consider the equation 12 = 12. Divide both sides by 4.
If you ran a lemon aide stand and you sold 3 cups of lemonade to each person at .50 cents per cup,
how much money did you make selling to 25 people?
Answer:
$37.50
Step-by-step explanation:
{25(3)}0.50
-25 people times 3 cups for each person= 75
-0.50 times the amount of cups= 37.50
You would make 37 dollars and 50 cents.
ILL GIVE BRAINLIEST AND EVERYTHING ELSEEE HELP
Answer:
The Second One
Step-by-step explanation:
Commutative Property
Simplify the following 7-8c+3-6c
Answer:
-14c+10
Step-by-step explanation:
add the -8c and -6c together and add 7 and 3 together. number comes after the variable
4÷ 33.8 PLEASEEEEEE PLEASEEEEE
Answer:
33.8 ÷ 4 = 8.45
4 ÷ 33.8 = 0.118343195266
Step-by-step explanation:
What is 5884 diveded by 94?
Answer:
62.5957447
Step-by-step explanation:
= 62 R 56
= 62 56/94
= 62 28/47
Answer:
The answer is 62.6
Step-by-step explanation:
Which word describes the figure?
O parallelogram
O rhombus
O quadrilateral
Answer:
THERE IS NO DARN SHAPE MAN
Step-by-step explanation:
Help! I have 20 minutes
Answer:
a = 80
b = 40
c = 58
d = 19
e = 34
f = 36
Pls mark brainliest. Thanks!
Answer:
a = 80
b=40
c=58
d=19
e=34
f=36
Step-by-step explanation:
math uhmmm help please i cant seem to figure it out
Answer:
B
Step-by-step explanation:
Answer:
I believe the first answer is correct
Evaluate 2x3 – 3 when x is 2.
Helpp
Answer:
21
hope it's helpful ❤❤❤❤❤
THANK YOU.
Selena reduced the time it takes her to run a mile from 8 minutes to 6 minutes. What was Selena's percent decrease in the time it takes her to run a mile?
Answer:
I think the answer might be 0.48 because that is 8 percent of 6, but im not positive
Selena reduced the time it takes her to run a mile from 8 minutes to 6 minutes. What was Selena's percent decrease in the time it takes her to run a mile?
It is 25%
The perimeter of a rectangular meadow is 1004 m. What
will be the sum of the length and breadth of the meadow ?
Answer:
hope it works for u
Step-by-step explanation:
Given the length of the rectangle = l
the breadth of the rectangle = b
perimeter of the rectangle = sum of length of all sides of the rectangle
= l+ b+ l+ b
=2 l+2 b
=2( l+ b)
∴ perimeter of the rectangle =2( l+ b)
as given perimeter = 1004 m
hence ,
2(l+ b)= 1004
(l+ b)=1004/2 = 502 m
l+ b=502 mHelp pls this is timed!!!!!!! Pls and thank you ;P
Who supported the formation of Washington Territory out of a belief that it was America’s destiny to settle the Pacific Northwest?
A.)President Millard Fillmore
B.)Governor Isaac Stevens
C.)Oregon Territory’s northern settlers
D.)Oregon Territory’s southern settlers
Answer:
A. President Millard Fillmore
What is this ?? Pls help
Module 11 and 12 Exam On Level
winst vatue of x make this equation true?
-90 = -100 +x
helpppp!!!!!!!!!!!!!
Answer:
a
Step-by-step explanation:
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.
do not know sorry : (
Answer:
right option is A:- they are adjacent angles
hope it helps
Step-by-step explanation:
please mark me brainliest
Use a triple integral to find the volume of the tetrahedron T bounded by the planes x+2y+z=2, x=2y, x=0 and z=0
Answer:
Volume of the Tetrahedron T =[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
As given, The tetrahedron T is bounded by the planes x + 2y + z = 2, x = 2y, x = 0, and z = 0
We have,
z = 0 and x + 2y + z = 2
⇒ z = 2 - x - 2y
∴ The limits of z are :
0 ≤ z ≤ 2 - x - 2y
Now, in the xy- plane , the equations becomes
x + 2y = 2 , x = 2y , x = 0 ( As in xy- plane , z = 0)
Firstly , we find the intersection between the lines x = 2y and x + 2y = 2
∴ we get
2y + 2y = 2
⇒4y = 2
⇒y = [tex]\frac{2}{4} = \frac{1}{2}[/tex] = 0.5
⇒x = 2([tex]\frac{1}{2}[/tex]) = 1
So, the intersection point is ( 1, 0.5)
As we have x = 0 and x = 1
∴ The limits of x are :
0 ≤ x ≤ 1
Also,
x = 2y
⇒y = [tex]\frac{x}{2}[/tex]
and x + 2y = 2
⇒2y = 2 - x
⇒y = 1 - [tex]\frac{x}{2}[/tex]
∴ The limits of y are :
[tex]\frac{x}{2}[/tex] ≤ y ≤ 1 - [tex]\frac{x}{2}[/tex]
So, we get
Volume = [tex]\int\limits^1_0 {\int\limits^{1-\frac{x}{2}}_{y = \frac{x}{2}}\int\limits^{2-x-2y}_{z=0} {dz} \, dy \, dx[/tex]
= [tex]\int\limits^1_0 {\int\limits^{1-\frac{x}{2}}_{y = \frac{x}{2}}{[z]}\limits^{2-x-2y}_0 {} \, \, dy \, dx[/tex]
= [tex]\int\limits^1_0 {\int\limits^{1-\frac{x}{2}}_{y = \frac{x}{2}}{(2-x-2y)} \, \, dy \, dx[/tex]
= [tex]\int\limits^1_0 {[2y-xy-y^{2} ]}\limits^{1-\frac{x}{2}} _{\frac{x}{2} } {} \, \, dx[/tex]
= [tex]\int\limits^1_0 {[2(1-\frac{x}{2} - \frac{x}{2}) -x(1-\frac{x}{2} - \frac{x}{2}) -(1-\frac{x}{2}) ^{2} + (\frac{x}{2} )^{2} ] {} \, \, dx[/tex]
= [tex]\int\limits^1_0 {(1 - 2x + x^{2} )} \, \, dx[/tex]
= [tex]{(x - x^{2} + \frac{x^{3}}{3} )}\limits^1_0[/tex]
= 1 - 1² + [tex]\frac{1^{3} }{3}[/tex] - 0 + 0 - 0
= 1 - 1 + [tex]\frac{1 }{3}[/tex] = [tex]\frac{1}{3}[/tex]
So, we get
Volume =[tex]\frac{1}{3}[/tex]
The volume of Tetrahedron will be [tex]\frac{1}{3}[/tex] units.
Given,
The tetrahedron T is bounded by the planes,
[tex]x+2y+z=2......(1)\\ x=2y....(2)\\ x=0......(3) \\ z=0.....(4)[/tex]
From equation (1),
[tex]z=2-x-2y[/tex]
So the limits of z will be from 0 to [tex]2-x-2y[/tex].
Now, from equation (2),
[tex]y=\frac{x}{2}[/tex]
and from equation (1), putting z=0 we get,
[tex]x+2y=2\\y=1-\frac{x}{2}[/tex]
So the limits of y will be from [tex]\frac{x}{2}[/tex] to [tex]1-\frac{x}{2}[/tex].
On solving equation (1), for x we get
[tex]x+x+0=2[/tex] [tex](x=2y \ and \ z=0 )[/tex]
[tex]x=1[/tex].
So the limits of x will be from 0 to 1.
The volume of tetrahedron will be,
[tex]V=\int\limits^1_0 \, dx \int\limits^{1-\frac{x}{2} }_{\frac{x}{2} } \, dy \int\limits^{2-x-2y}_0 \, dz[/tex]
[tex]V=\int\limits^1_0 \, dx \int\limits^{1-\frac{x}{2} }_{\frac{x}{2} } \, dy [2-x-2y-0][/tex]
[tex]V=\int\limits^1_0 \, dx (1-2x+x^2)\\[/tex]
[tex]V=1-1+\frac{1}{3}[/tex]
[tex]V=\dfrac{1}{3}[/tex]
Hence the volume of tetrahedron is [tex]\frac{1}{3}[/tex] units.
For more details on Triple integration follow the link:
https://brainly.com/question/12632797
What is the value of (x)?
Answer: -6
Step-by-step explanation: 7 + -6 = 1
:\
Answer:
x= -6
Step-by-step explanation:
x+7=1
1-7= - 6
SO , -6+7= 1