Answers
==========================================================
Work Shown:
s = square side length
A = area of square = 9x^2+12x+4
A = s^2
A = (ax+b)^2
A = a^2*x^2 + 2abx + b^2 .... apply the FOIL rule
A = 9x^2 + 12x + 4
Equating corresponding terms, we see that,
a^2*x^2 = 9x^2 which shows that a^2 = 9 and that solves to a = 3, assuming 'a' is positive.2abx = 12x leads to 2ab = 12 or ab = 6. Using a = 3 we can find that b = 2.b^2 = 4 solves to b = 2 which matches with the previous value of b found.Using a = 3 and b = 2, the sum of the values is a+b = 3+2 = 5, so that's why the answer is choice C.
Side note: 9x^2 + 12x + 4 factors to (3x + 2)^2
Related Questions
please help me!! i need mathematicians on this post right now!!
Cam, Yusef, and Spencer have resolved to drink more water each day. The recommended amount of water per day is 64 ounces.
1. At breakfast, Yusef drinks 16 ounces of water. What percentage of the daily amount of water does Yusef drink at breakfast? Show your work and/or explain your reasoning.
2. Spencer decides to drink more than the recommended amount. By dinner time, he has already drunk 64 ounces of water, which is 80% of his goal for the day. How many total ounces of water does Spencer plan to drink? Show your work and/or explain your reasoning.
Answers
Answer:
1) 25%
2) 80 ounces
Step-by-step explanation:
1) 16 oz/64 oz = 1/4 or 25%
2) 64 oz/0.80 = 80 ounces
Answer:
1. 25%
2. 80 ounces
Step-by-step explanation:
1. 16 oz \64 oz=1\4 or 25%
2. 64 oz\0.80=80 ounces
What is the area of the circle shown? Use 3.14 for pi.
Help Me fast I need to submit this test in 20 minutes help please
Answers
Answer:
Step-by-step explanation:
6
PLEASE HELP!!! ASAP ITS DUE IN 30 MINUTES
Answers
Answer:
.
Step-by-step explanation:
Answer: (4,1)
Step-by-step explanation: Hope this helps :)
Mariah wants to create a triangular flower bed and border it with scraps of picket fence that
she has left over from another project. One scrap is 2.2 feet long, a second scrap is 4.25 feet
long, and the third scrap is 5.75 feet long. If she uses these three pieces of fencing as the
border, what kind of triangle will form the shape of her flower bed?
Answers
Answer:
The kind of triangle that will form the shape of her flower bed is;
A scalene triangle
Step-by-step explanation:
In creating the triangular flower bed, the length of the scraps Mariah uses are;
The length of one scrap = 2.2 feet long
The length of the second scrap = 4.25 feet long
The length of the third scrap = 5.75 feet long
From the given length of the scraps, the kind of triangle that will form the shape of her flower bed is a scalene triangle
A scalene triangle is a triangle that the length of all the three sides are different and the measures of the three interior angles of the triangle are therefore also different
-11x-4>-15
Please help me on this, I am just now learning it and don't even know how to do it, it is so confusing!!
Please respond asap
Answers
Answer:
x<1
Step-by-step explanation:
You want to get the x to one side and the numbers on the other
1. Take the -4 to the right side by adding 4
-11x < 11
2. We need to find the value of x
This is done by dividing the number before x and bringing it to the right side
Therefore x < 1
An earthquake causes a piece of glass to
fall off a building from a height of
2,704 ft. If the equation for height as a
function of time is
h(t) = -16t2 + initial height where t is time
in seconds and h(t) is height in feet, how
many seconds will it take for the piece of
glass to hit the ground?
[?] seconds
Answers
Answer: 13
Step-by-step explanation:
Which of the functions (Function A, Function B, or Function C) is quadratic?
Answers
Need help and fast this work is due soon
Answers
Answer:
2x+3=4x-7
4x-2x=-7-3
2x=-10
X=-5
please help asap i’ll give u a brainliest if u get the right answer
Answers
Answer:
(4, 2)
Step-by-step explanation:
What is the measurement of angle BEC?
Answers
Answer:
I think its -120 but am not sure so sorry if its wrong
Answer:
Step-by-step explanation:
what makes these tough is that you have to remember that the total of the angle is known, you know it to be 180 ° , so since you know the total just set all the part equal to that
180 = 4x + 6x-20 + 5x - 10
now you can slove for x with your mad algebra skilz :) if you don't have those yet. it's okay.. most people don't :D Super hero's and math whizzes only, seem to have those. :D
180 = 15x -30
210 = 15x
14 = x
now that we know what x is , plug it into the angle BCE
BCE = 6(14) -20
BCE = 84 -20
BCE = 64 °
Happy St. Paddy's day
5 + ( −3 ) ( 6x − 5 ) ?
Answers
Answer:
=-18x+20
Step-by-step explanation
:
Answer:
-18x+20
Step-by-step explanation:
5+(-3)(6x-5)
Distribute the -3 with the 6x-5.
-3×6x=-18x, -3×-5=15
5+-18x+15
The -18x is done, because there are no other like terms for it to add or subract with.
5 and 15 can add for 20
-18x+20
Key terms:
Distribute: To multiply a number by 2 or more numbers, often using parenthasis 6(5+7)= 30+35
Like terms: Coefficients with the same variable, or numbers without a variable can be added or subtracted. Unlike terms cannot be added or subtracted. Does not apply to multiplication or division.
7y+4x+3y+6=10y+4x+6
WILL MARK AS BRAINLEIST IF CORRECT
Answers
Answer:
1. 17inch
Step-by-step explanation:
Sorry I don´t know the rest i´m not that good at math.Sorry again.
25% as a fraction and a decimal
Answers
Answer:
Fraction: 1/4 Decimal: 0.25
Step-by-step explanation:
If y + 10 = 25, what is the value of 3(y + 2)?
Answers
Answer:
3(15 + 2) = 3 x 17 = 51
Step-by-step explanation:
Answer:
51
Step-by-step explanation:
y=15
3(15+2)
45+6
51
Please I need help!!!
Answers
Answer:
58
Step-by-step explanation:
-14 + x = 44
x = 44 + 14
x = 58
Marlon runs on a driveway which is 1 12 of a mile long. How many times does Marlon run the length of the driveway to complete his daily goal of 1 1 2 miles?
Answers
Answer:
18 times
Step-by-step explanation:
Length of driveway = 1/12 miles
Daily goal = 1 1/2 miles
Number of times he has to run the length of the driveway:
Daily Goal / length of driveway
= 3/2 miles ÷ 1/12 miles
= 3/2 * 12 / 1
= 36 /2
= 18
18 times
Which expression is equivalent to 90-30+ 2?
Answers
Answer:where’s the expression?
Step-by-step explanation:
Answer:
90-30=60
60+2=62
answer:62
ill mark brainly answer!
Answers
Answer:
1) w = x+2
2) L = 12
3) w = 9
4) A = 108
Step-by-step explanation:
The rectangle has a length of x+5 and a perimeter of 4x+14.
Perimeter of a rectangle is given by all the lengths plus all the widths, ie 2*width and 2*length.
Perimeter = 2w + 2L
4x+14 = 2w + 2(x+5)
4x + 14 - 2x - 10 = 2w
w = 2x + 7 - x - 5
w = x+2 Width of the rectangle in terms of x.
If perimeter of rectangle is 42, what is the length?
Perimeter = 42 = 4x+14
28 = 4x
x = 7
L = x+5
L = 7+5
L = 12
If perimeter of rectangle is 42, what is the width?
Perimeter = 42 = 4x+14
28 = 4x
x = 7
w = x+2
w = 7+2
w = 9
Area equals length times width. What is the area of the rectangle.
A = L*w
A = 12*9
A = 108
Find the area of the given shape.
Answers
Answer:
66 cm squared
Step-by-step explanation:
split the shape into 2 rectangles, then use the numbers given to solve for the new shapes
3cm by 7cm for one and 5cm by 9 cm for the other (there are multiple ways to split the shape)
multiply those numbers
3 x 7 = 21cm ^2
5 x 9 = 45cm ^2
add them together
66cm ^2 (squared)
PLEASE I NEED THIS ASAP! find the inequality represented in the graph
Answers
Brainly for questions 4 & 5
Answers
Answer:
its a quiz you might get banned
Step-by-step explanation:
una escalera esta recargada en un muro de 8 metros de altura y forma un angulo agudo de 55 grados ¿cual es la longitud de la escalera?
Answers
Answer:
9.77 metros
Step-by-step explanation:
Ay que usar sine, mira el problema en la photo
A fee of $5.00 each month is charged for a checking account.
The account has $45.00. If no money is deposited or
withdrawn except the fee, how many months until the account
balance is negative?
Answers
Answer:
9 Times
Step-by-step explanation:
45 ÷ 5 = 9
Hope this helped!
Mr. Tully gave a math test to his class. The highest score was 100 and the lowest score was 72. What is the range of the data?
Answers
Answer:
it is 28
Step-by-step explanation:
100-72=28 easy
what's the passing marks out of 60
Answers
Answer:
it depend on ur marks dude
Step-by-step explanation:
please mark me as brainlist and be happy
how do you solve for x?
Answers
But it is not a complete question.
The circumference of a circle is 19.468 meters. Find the radius of the circle.
16.328 m
6.2 m
12.4 m
3.1 m
Answers
The circumference of a circle is 19.468 meters, the radius of the circle is: 3.1 m
What is circumference of circle?When it comes to geometry, a circle's or ellipse's circumference is its perimeter. In other words, the circumference would be the length of the circle's arc if it were opened out and straightened out to a line segment. The radius surrounding any closed figure is known as its perimeter more generally. The distance in a straight line around a circle is known as its circumference. Or, to put it another way, the circumference of a circle is the length of a straight line formed by opening up the circle.
Given that,
circumference = 19.468 m
So, as we know
circumference = 2 × π × radius
or, 19.468 = 2 × π × radius
or, radius = 19.468 / 2π
or, radius = 3.1 m
correct option: 3.1 m
To know more about circle refer to:
https://brainly.com/question/24375372
#SPJ1
Simply expression 7(x+y)-7x
Answers
Answer:
7y
Step-by-step explanation:
7(x + y) - 7x =
= 7x + 7y - 7x
= 7y
Answer:
7y
Step-by-step explanation:
7(x+y)-7x=7x+7y-7x=7y
Hope this helps :)
I WILL GIVE YOU BRAINLIEST TO THE FIRST PERSON THAT ANSWERS
D'(4,4), E'(3,0), F'(0,3)
Write a rule to describe this transformations
Answers
Answer:
f(x)=(x-5)^2-6
Step-by-step explanation:
horizontal shrink by a factor of 1/3 and a translation 3 units down, followed by a reflection in the x-axis.
Which graph below is connected?
Answers
Answer:
number 1 i already answered that and Im correct