and y =
4
4
Which is the solution of the equation (4y - 3)2 = 12?
3+2v3
3-23
a. y =
3+2V2
b. y =
and y =
-3-2V2
4
63
-63
y=-
and y =
4
4
3v2
-3/
and y =
4
C.
d. y =
4
4
Answer
10
Step-by-step explanation:
Is 65/126 about 1/4?
Answer:
No
Step-by-step explanation:
65/126 = 0.5158730..
1/4=0.25
The 65/126 (0.5) is not less than the 1/4 (0.25) which means that the given statement 1/4 is More than 65/126
Please help immediately
Show your work
Answer:
a + 7
Step-by-step explanation:
x^2 + 2x - 8. on [5,a]
(f(a)-f(5))/( a - 5 )
(( a^2 + 2a - 8 ) - 27 ) / a - 5
( a^2 + 2a - 35 ) / a - 5
(a - 5)(a + 7) / a - 5
a + 7
What is 329*56 divided by 21
Answer:
The answer is 877.333333333
Answer:
877.333333333
Step-by-step explanation:
329*56 divided by 21 = 877.333333333
to what power must you raise the expression 7^1/2 to get 7 as the result?
Answer:
2
Step-by-step explanation:
(7^1/2)^2=7^(1/2*2)=7
what is 5x(2x+7)+x(3x-5 do you know
Answer:
43xx
Step-by-step explanation:
5x(2x+7)+x(3x-5)
first, do the equations inside the parentheses
2x+7=9x
3x-5=-2x
so,
5x(9x)+x(-2x)
Next, do 5x times 9x
(5x) x (9x) = 45
so,
45+x(-2x)
Next, do x times (-2x)
(x) x (-2x)=-2xx
so,
45+-2xx
=43xx
What is the lowest common multiple of 14, 28, and 84?
Explain
help
Answer:
308
Step-by-step explanation:
first you divide all three numbers by the smallest counting number,in this case, it is a '2' . keep on dividing with other numbers until when you reach a point where the remainder is indivisible, that is to say numbers like 7,11,5 etc.
PLEASE HELP ME
The figure below shows two pair of congruent triangles. ΔROB ≅ _____ ΔPTA ΔATP ΔPAT ΔAPT
please help me on this question ASAP.
i need it dont by midnight and its 10:40.
Answer:
i) x = 6 and y = 9
ii) x = 10 and y = 5
iii) x = 9 and y = 10
not entirely sure about the last one
Step-by-step explanation:
not sure how to explain but trust
Triangles PQR and RST are similar right triangles.
image
Which proportion can be used to show that the slope of PR is equal to the slope of RT?
A.
3
−
7
−
4
−
(
−
7
)
=
−
5
−
3
2
−
(
−
4
)
B.
3
−
(
−
4
)
7
−
(
−
7
)
=
−
5
−
2
3
−
(
−
4
)
C.
−
4
−
(
−
7
)
3
−
7
=
2
−
(
−
4
)
−
5
−
3
D.
−
4
−
(
−
3
)
−
7
−
7
=
2
−
(
−
5
)
−
4
−
3
This is my last question someone help and plz make sure it’s right will mark brainiest plz :)
Answer:
fort nite
Step-by-step explanation:
i dont know what brainiest means
What is the product?
(y3+3y+7) x (8y2+y+1)
Answer:
I believe that this is what you mean. (y^3+3y+7)*(8y^2+y+1)
Step-by-step explanation:
So your answer would be: 8y^5+y^4+25y^3+59y^2+10y+7
Have a nice day!
I really hope this helps!
A manager started a meeting with his staff at 9:30.The meeting ended at 10:25.How long did the meeting last
How long the meeting last = End time - Starting time
= 10:25 - 9:30
= 9:85 - 9:30 [I converted 10:25 to make it easier to see the
subtraction. This is posibble because 1hr = 60mins]
= 55 mins
For functions f and g defined by f(x) = x² + 7 and g(x) = x - 3, what is the value of f(g(5))?
Simplify 12 square root 1764
Answer:
504
Step-by-step explanation:
Answer:
42
Step-by-step explanation:
The square root of 1764 (or root 1764), is the number which when multipiled by itself give the product as 1764. Therefore the square root of 1764 = √ 1764 = 42.
please help me on all of them if u can
Answer:
1) x² + x
2) 2x² - x
3) 4x² + 3x
4) 2x² - 3x
5) 4x - 3x²
6) x + x²
Step-by-step explanation:
suppose that p is the probability that a randomly selected person is left handed. The value (1-p) is the probability that the person is not left-handed. In the sample of 100 people, the function V(p)= 1000 p(1-p) represents the variance of the number of left-handed people in a group of 100.
a) What value of p maximizes the variance?
b) What is the maximum variance?
Answer:
a) 1/2
b) 250
Step-by-step explanation:
The start of the question doesn't matter entirely, although is interesting to read. What we are trying to do is find the value for [tex]p[/tex] such that [tex]1000p(1-p)[/tex] is maximized. Once we have that [tex]p[/tex], we can easily find the answer to part b.
Finding the value that maximizes [tex]1000p(1-p)[/tex] is the same as finding the value that maximizes [tex]p(1-p)[/tex], just on a smaller scale. So, we really want to maximize [tex]p(1-p)[/tex]. To do this, we will do a trick called completing the square.
[tex]p(1-p)=p-p^2=-p^2+p=-(p^2-p)=-(p^2-p+1/4)-(-1/4)=-(p-1/2)^2+1/4[/tex].
Because there is a negative sign in front of the big squared term, combined with the fact that a square is always positive, means we need to find the value of [tex]p[/tex] such that the inner part of the square term is equal to [tex]0[/tex].
[tex]p-1/2=0\\p=1/2[/tex].
So, the answer to part a is [tex]\boxed{1/2}[/tex].
We can then plug [tex]1/2[/tex] into the equation for p to find the answer to part b.
[tex]1000(1/2)(1-1/2)=1000(1/2)(1/2)=1000*1/4=250[/tex].
So, the answer to part b is [tex]\boxed{250}[/tex].
And we're done!
please I need help. I dont understand this. its past due!
Answer:
1) x= -8
2) x=7
Step-by-step explanation:
1) x+88+x+108 = 180 ( co-interior angles)
=> 2x+ 196 = 180
=> 2x= 180-196
=> 2x= -16
=>x= -16/2
=>x= -8
2) 7x+6=8x-1
=>7x-8x= -1-6
=>-x= -7
=>x= 7
Please help quick! Find the value of x to the nearest tenth.
Answer: 3.3
Step-by-step explanation: pythagorean theorem.
first we'll do the bottom triangle. a^2 + b^2 = c^2
a=3 and b=4
(3)^2 + (4)^2 = 9 + 16 = 25 which = c^2
to find c from c^2, square root the c^2 value. in this case it's 25. the square root of 25 is 5.
5 is now the base of the rectangle
now we can do pythagorean theorem again. except we'll switch it so it's c^2 - b^2 =a^2
c=6 and b=5
(6)^2 - (5)^2 = 36 - 25 = 11 = a^2
to find a we'll square root 11 which is just [tex]\sqrt{11[/tex]. approx. 3.3 to the nearest tenth.
We can use the Pythagorean theorem to solve for x.
But first, we have to find the value of 'a' (as I labelled in the diagram below). We could actually do all this in one step if we set it up correctly.
so x = √(6² - a²)
& a² = 3² + 4²
⇒ x = √[6² - (3² + 4²)]
x = √(11) or ≈ 3.3167
For what values of b is the expression x2 + bx + 12 factorable?
Answer:
Step-by-step explanation:
±7,±8,±13
for something to be factorable it must add to b and mulitply to c
list all the numbers that mulitply to 12
1,12
2,6
3,4
-1,-12
-2,-6
-3,-4
Then just take their sum
13,8,7,-13,-8,-7
What is a strategy for dividing 428 by 107?
Answer:
4Step-by-step explanation:
428÷107
Use the 1 st
digit 4 from dividend 428
107)1
107)428
Since 4 is less than 107, use the next digit 2 from dividend 428 and add 0 to the quotient
107)02
107)428
Use the 2nd
digit 2 from dividend 428
107)03
107)428
Since 42 is less than 107, use the next digit 8 from dividend 428 and add 0 to the quotient
107)004
107)428
Use the 3rd
digit 8 from dividend 428
107)005
107)428
Find closest multiple of 107 to 428. We see that 4×107=428 is the nearest. Now subtract 428 from 428 to get reminder 0. Add 4 to quotient.
107)0046
107)428
107)428
107)9990
Since 0 is less than 107, stop the division. The reminder is 0. The topmost line 004 is the quotient. Remove all zeros at the start of the quotient to get the actual quotient 4.
Quotient: 4
Reminder: 0
Can somebody do this please
Answer:
lines FI and GH
Step-by-step explanation:
both lines are neither parallel nor intersecting and aren't on the same plane
[tex]\bf\red{CD}[/tex]
If Michael made 12 shots out of 18 what is the percentage of shots made by him?
Answer:
At least 66%
Step-by-step explanation:
65% of 18 is 11.7
67% of 18 is 12.06
Therefore, at least 66% of the shots where made by Michael.
Step-by-step explanation:
100% = 18
x% = 12
x% = 100% / 100 × x
so,
18/100 × x = 12
18x = 1200
x = 1200/18 = 200/3 ≈ 66.66666...
so, he made about 67% of the shots.
Stefan’s family rented a rototiller to prepare an area in their backyard for spring planting. The rental company charged an initial fee of $43 with an additional fee per hour. If they paid $64 after renting the rototiller for 7 hours, what was the hourly fee?
If h represents the hourly fee, which equation models this problem?
What was the hourly fee for the rototiller?
The hourly fee is $3.00 per hour.
It is required to find the hourly fee for the rototiller.
What is arithmetic?Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.
Given:
Let h represents the hourly fee.
Let C be the total charge and t be the rental time in hours.
C = ht + 43
Putting the given values into the equation, we get:
64 = 7h + 43
7h = 21
h = 3
Therefore, the hourly fee is $3.00 per hour.
Learn more details about arithmetic here:
https://brainly.com/question/11559160
#SPJ2
Help me tyyyyyyyyyyyyyyy
Answer:
option number 3
Step-by-step explanation:
to solve the equation 7.5d=2.5d , Lin divides each side by 2.5d,elena subtracts 2.5d from each side.
Given the function f(x)=8-3x. Solve f(-2)
A. -14
B. 14
C. -2
D. 2
Answer:
14, which is B.
Step-by-step explanation:
Plug in -2 in your function.
f(-2) = 8-3(-2)
= 8 - (-6)
= 8 + 6 = 14
(44 points and brainliest) A geologist noticed that land along a fault line moved 24 4/5 centimeters over the past 175 years. On average, how much did the land move each year?
Answer:
7.0564516129
Step-by-step explanation:
Use 175 and divide 24 4/5 from that, then you find out how much the land moves each year.
quincy has $37 in a savings account
Answer:
The 2nd answer would be the correct option.
Step-by-step explanation:
Hope this helps:) Also can I have brainliest if possible:) It is ok if you can not.
f(x) = x2 – 7x- 9
g(x) = -5x – 11
Find: (g•f)(x)
Answer:
[tex](gof)(x) = -5 {x}^{2} + 35x + 34[/tex]
Step-by-step explanation:
[tex](gof)(x) = g(f(x)) \\ = - 5( {x}^{2} - 7x - 9) - 11 \\ = - 5 {x}^{2} + 35x + 45 - 11 \\ = - 5 {x}^{2} + 35x + 34[/tex]
I hope I helped you^_^