Answer:
This area is represented by the function m (x), where x is the length of the radius of the circle in feet. The homeowner estimates that he will pay $1.50 per square foot of mulch. This cost is represented by the function g (m), where m is the area requiring mulch.
Step-by-step explanation:
If z^1/2 = x^1/2 + y^1/2 , prove that (x + y - z)^2 = 4xy.
HELPP MEEEEE
Answer:
Make use of the fact that [tex](a + b)^{2} = a^{2} + 2\, a\, b + b^{2}[/tex].
Step-by-step explanation:
Start from the given: [tex]z^{1/2} = x^{1/2} + y^{1/2}[/tex].
In other words: [tex]\sqrt{z} = \sqrt{x} + \sqrt{y}[/tex].
Square both sides of the equation:
[tex](\sqrt{z})^{2} = (\sqrt{x} + \sqrt{y})^{2}[/tex].
Equality would still hold because:
[tex]\begin{aligned}& a = b \\ \implies \; & a\cdot a = a\cdot b \\ \implies \; & a \cdot a = b \cdot b \\ \implies \; & a^{2} = b^{2}\end{aligned}[/tex].
Simplify:
[tex]z = (\sqrt{x})^{2} + 2\, (\sqrt{x}) \cdot (\sqrt{y}) + (\sqrt{y})^{2}[/tex].
[tex]z = x + 2\sqrt{x y} + y[/tex].
Subtract [tex]z[/tex] from both sides of this equation:
[tex]0 = x + 2 \sqrt{x y} + y - z[/tex].
Subtract [tex]2 \sqrt{x y}[/tex] from both sides of this equation:
[tex]-2 \sqrt{x y} = x + y - z[/tex].
Again, square both sides of this equation:
[tex](-2 \sqrt{x y})^{2} = (x + y - z)^{2}[/tex].
[tex](-2)^{2}\, (\sqrt{x y})^{2} = (x + y - z)^{2}[/tex].
[tex](x + y - z)^{2} = 4\, x \, y[/tex] (by the symmetric property of equalities.)
Add. Simplify the answer
Answer:
[tex]4g^{2}h-12gh^{2}-9gh[/tex]
Copy and paste version:
4g^2h-12gh^2-9gh
Step-by-step explanation:
[tex](4g^{2}h-gh-9gh^{2})+(8gh-3gh^{2})=\\4g^{2}h-gh-9gh^{2}+8gh-3gh^{2}=\\4g^{2}h-9gh-12gh^{2}=\\4g^{2}h-12gh^{2}-9gh[/tex]
Answer:
4g^2h-12gh^2-9gh
Step-by-step explanation:
Is 2 (5x-1) = 3 (x+11) a one solution or a no solution or a real number
Answer: A one solution.
x=5
Step-by-step explanation: (2)(5x)+(2)(−1)=(3)(x)+(3)(11) 10x+−2=3x+33 10x−2-3x=3x+33-3x 7x−2+2=33+2 7x/7=35/7 x=5
[2+(12×3÷9)-6]÷4
with explanation
Answer:
PEMDAS:
ZERO 0
Left to right "p" parenthesis, "e" exponents,
"md" multiplication OR division , "as" addition or subtraction
Step-by-step explanation:
[2+(12×3÷9)-6]÷4
[2+(36÷9)-6]÷4
[2+(4)-6]÷4
[6-6]÷4
[0]÷4
0
Answer:
Ans: 0
Step-by-step explanation:
[2+(12×3÷9)-6]÷4
= [2+(36÷9)-6]÷4
= [2+4-6]÷4
= [6-6]÷4
= 0÷4
= 0
WILL GIVE BRAINLIEST HELP
ITS SECOND QUESTION WITH DIAGRAM
Solve 2x + 4 = 12.
O A. x = -4 and x = -8
O B. x = -4 and x = 8
O C. x = 4 and x = -8
O D. x = 4 and x = -4
If ; | 2x+4|=12 —> x = 4 , x = – 8 —> The choose C.
If ; | 2x | +4=12 —> x =4 , x = – 4 —> The choose D.
I hope I helped you^_^
Solve y = -x2 + 5 when x = -2
Please mark Brainliest.
y=-(-2)^2+5
y=-2^2+5
2^2 means 2 squared.
-(-2)^2=-4
y=-4+5
y=1
I hope this helps!
Step explanation:
To solve this, you have to plug in the value of x (-2) and solve:)
My advice:
Have a marvellous day!
calculates the measure of the diagonal of the following quadrilateral:
please
Answer:
5.83 cm
Step-by-step explanation:
D = √(5²+3²) =√(25+9)= √34 = 5.83 cm
To get at Level 3 in a game, a player must score 14,175. Ann scores 14,205
points, Ben scores 14,089 points, and Chuck scores
10,463 points. Which score is greater than a Level 3 score?
Answer:
only Ann's is greater than level 3
Please please help will give brainly points
Answer:
-7
Step-by-step explanation:
just plug in neg 4 to the equation
A and B are complementary and B and C are supplementary.
9. If mA 48", then mB= ? and mC = ?.
10. If mB 83, then mA = ? and mC = 2.
11. If mC 127, then m28= ? and mA = ?.
12. If mA = 25. than mB= ? and mC = ?.
9. if mA = 48° , then
mB = 90° - 48° = 42°mC = 180° - 42° = 138°10. if mB = 83°, then
mA = 90° - 83° = 7°mC = 180° - 83° = 97°11. if mC = 127°, then
mB = 180° - 127° = 53°mA = 90° - 53° = 37°12. if mA = 25°, then
mB = 90° - 25° = 65°mC = 180° - 65° = 115°According to the diagram, point B lies on how many faces of the pyramid?
three
one
two
four
Answer:
POINT B LIES ON FOUR FACES OF THE PYRAMID
Step-by-step explanation:
A PYRAMID HAS FIVE FACES IN THAT FOUR ARE TRIANGLE ONE IS SQUARE AS POINT B LIES AT THE TOP OF FOUR TRIANGLES WE CONSIDER AS IT LIES ON FOUR FACES OF A PYRAMID
I'VE TRYED MY LEVEL TO HELP YOU ONLOCK A STAR AND ADD ME AS BRAINLIEST
Express 9 7/8 as an improper fraction
Answer:
79/8
Step-by-step explanation:
[tex]\sf{9 \frac{7}{8} }[/tex]
[tex]\sf{ = \frac{(9 \times 8 )+ 7}{8} }[/tex]
[tex]\sf{ = \frac{72 + 7}{8} }[/tex]
[tex] = \purple{\sf{ \frac{79}{8} }}[/tex]
Benny spent half of his allowance going to the movies. He washed the family
car and earned 8 dollars. What is his weekly allowance if he ended with
13 dollars ?
Let it be x
He spent x/2 dollars then
[tex]\\ \sf\longmapsto \dfrac{x}{2}+8=13[/tex]
[tex]\\ \sf\longmapsto \dfrac{x+16}{2}=13[/tex]
[tex]\\ \sf\longmapsto x+16=13(2)=26[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{26}{16}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{13}{8}[/tex]
[tex]\\ \sf\longmapsto x=1.6\$[/tex]
[tex]\\ \sf\longmapsto Weekly allowance=13+7(1.6)[/tex]
[tex]\\ \sf\longmapsto 13+112=125[/tex]
Please help me please hurry
Answer:
8
Step-by-step explanation:
4. original 250: new: 500
what?.... .... .... ....
Can you please help me solve this equation?
Answer: ((T/(2pi))^2)g
Step-by-step explanation: just solve for L
Find the discriminate, number of roots and solve the quadratic equation using the quadratic formula -my answers are pribably wrong
Answers:
discriminant = dnumber of roots = esolutions = g=================================================
Explanation:
Let's compute the discriminant. Here we have a = 1, b = 1, c = -2
d = b^2 - 4ac
d = 1^2 - 4(1)(-2)
d = 9
The fact that d > 0 tells us we have two different real number solutions.
------------------------
We can use the quadratic formula to solve, or we can factor. I'll use the factor method.
x^2 + x - 2 = 0
(x - 1)(x + 2) = 0
x-1 = 0 or x+2 = 0
x = 1 or x = -2
The two solutions are -2 and 1
4/1 as a mixed number
Answer:
as a mixed number it would just be 4
Step-by-step explanation:
4 plus the quotient of r and 5
Write an algebraic expression
Answer:
4 +(r/5)
Step-by-step explanation:
Y=5x-6
Solve for x
Algebra 1
Answer:
x = y/5 + 6/5
The product of 4 and 8 is add to 15
Answer:
47...
Step-by-step explanation:
the product of 4 and 8 is 32 and added 15 then it is 47.
Answer:
47
Step-by-step explanation:
4*8+15=32+15=47 (by BODMAS rule)
Three times the sum of a number and 4 is twice a number minus 8.
Answer:
Step-by-step explanation:
3(n+4)=2n-8
3n+12=2n-8
5n= -20
n= -4
The movie ended at 7:05 p.m. and lasted 2 hours 40 minutes. What time did the movie begin?
Answer:
4 : 25pm
Step-by-step explanation:
If the movie ended at 7:05p.m, and the movie is as long as 2 hours 40 minutes, therefore the starting time is 2 hours 40 minutes earlier than the ending time
Therefore
7:05 - 2 hours and 40 minutes
= 4 : 25pm
PLEASE HELP IM DESPERATE WILL GIVE BRAINLIEST ONLY ANSWER IF YOU ARE HELPING
Answer:
48
Step-by-step explanation:
u • w
= (i + 6j ) • (9i - 2j )
= (1 × 9 ) + (6 × - 2 )
= 9 + (- 12)
= 9 - 12
= - 3
v • w
= (5i - 3j ) • (9i - 2j )
= (5 × 9) + (- 3 × - 2)
= 45 + 6
= 51
Then
u • w + v • w
= - 3 + 51
= 48
Please help me out!!!!
Answer:
All real numbers
Step-by-step explanation:
4(x+1) = 4x+4
Distribute
4x+4 = 4x+4
Subtract 4x from each side
4x+4-4x = 4x+4-4x
4=4
This is always true so there are infinite solutions
Solution:
Let's find the required solution,
→ 4(x + 1) = 4x + 4
→ 4x + 4 = 4x + 4
→ (4x - 4x) + 4 = 4
→ 4 = 4
→ LHS = RHS
The answer is all real numbers.
y=x (w-5)/3 Make w the subject of the formula
Step-by-step explanation:
hopefully this makes sense
:)
How would I write five times the quantity of a number and 3 is 50.
Answer:
5(x+3)=50
Step-by-step explanation:
Calcula el promedio de cada conjunto de datos.
a) 7, 9, 10, 12, 12, 12, 15
b) 22, 22, 22, 24, 25, 35
c) 6, 8, 8, 8, 10, 12, 13, 15
d) 10, 14, 14, 14, 18, 20
Answer:
a = 11
b = 25
c = 10
d = 15
I thought
four customers buy cheese at a deli. Kim buys 1 4/5 pounds, jay buys 2 3/5 pounds, lena buys 1.5 pounds li buys 2.05 pounds. which customer brought the least A. kim B. jay C. lena D. li
Answer:
A KIM is the answerrrrrr
