Answers
k so you do (4x + 1) x (3x - 5) = 12x^2 - 20x + 3x - 5 = 12x^2 - 17x - 5
(x + 3)^2 = x^2 + 6x + 9
(12x^2 - 17x - 5) - (x^2 + 6x + 9)
11x^2 - 11x + 4
Answer:
11x² - 23x - 14
Step-by-step explanation:
The area left is the area of the outer rectangle subtract the square, that is
A = (4x + 1)(3x - 5) - (x + 3)² ← expand factors using FOIL
= 12x² - 17x - 5 - (x² + 6x + 9) ← distribute parenthesis by - 1
= 12x² - 17x - 5 - x² - 6x - 9 ← collect like terms
= 11x² - 23x - 14
Related Questions
Find the circumference of the circle if the diameter is 27m. Use 3.14 for Pi.
Answers
Answer:
Circumference= 84.78 or if needed simplified 85
Step-by-step explanation:
c=2×3.14×r
in this case to get the radius divide the diameter by 2 which would equal 13.5 so the formula would be
2×3.14×13.5=84.78
The recipe calls for a ratio of 3 sugar to 4 flour.
If you use 12 sugar
How much flour do you need
Answers
3. Write the numbers given below in scientific notation.
(a) 3000000000 ms
Answers
Step-by-step explanation:
3×10^10 is the scientific notation of 30000000000
what value of theta is cos ^-1(sqrt2/2)=theta
Answers
Answer:
[tex]\frac{\pi }{4}[/tex]
Step-by-step explanation:
[tex]cos^{-1}[/tex] ([tex]\frac{\sqrt{2} }{2}[/tex] ) = [tex]\frac{\pi }{4}[/tex] = θ
Could somebody solve it, explaining it?
Answers
Answer:
a=44, b= 58
Step-by-step explanation:
You look at the first triangle that gives you the two angles, and with the rule that every triangle's angles inside it need to add up to 180 degrees, you can determine that the missing angle is 46 degrees, which translates over to the other triangle, meaning that a would be 44 degrees.
The other triangle has two identical angles, being 61 degrees, which helps translate to the smaller triangle, again allowing you to infer that b is 58 degrees
Which line is the graph of y=1/2x+1?
Answers
Answer:
Step-by-step explanation:
Math
way
1
To make 8 cups of tomato soup you need 2 pounds of tomatoes. How many pounds of tomatoes do you need to make 32 cups of soup?
Answers
Answer:
72
Step-by-step explanation:
The perimeter of a regular nonagon is 324 cm. Find the length of each side.
A 37
B 27
C 46.3
D 29.5
Answers
Answer:
C
the answer is c I have done this before
.- Sí 159.6 gramos de Fe2O3 liberan 67.2 litros de CO2 ¿cuántos litros de CO2 se liberan si reaccionan 45 gramos de Fe2O3? de acuerdo a la siguiente reacción: Fe2O3 (s) + 3 CO (g) 2 Fe (s) + 3 CO2 (g)
Answers
Answer:
45 g de oxido de hierro (III) liberarán 18.9 L de CO₂
Step-by-step explanation:
La reaccion quimica es la siguiente:
Fe₂O₃ (s) + 3CO (g) → 2Fe (s) + 3CO₂ (g)
1 mol de oxido de hierro (III), reacciona con 3 moles de monoxido de carbono para liberar 3 moles de CO₂ y 2 moles de Fe sólido.
Pasamos la masa de F₂O₃ a moles:
159.6 g . 1 mol /159.7g = 1 mol de oxido
Entonces, aplicamos la regla de tres:
1 mol de oxido produce 3 moles de dioxido de carbono, indudablemente eso será lo que formemos de producto, por lo tanto 3 moles de CO₂ estan ocupando 67.2 litros.
Ahora calculamos los nuevos moles:
45g . 1 mol /159.7 g = 0.282 moles
Aplicamos la regla de tres:
Si un mol de oxido produce 3 moles de CO₂
0.282 moles producen (0.82 . 3 ) = 0.845 moles de CO₂
Como tenemos menos moles de gas, el volumen ocupado sera mayor, hacemos la regla de tres:
Si 3 moles de CO₂ ocupan 67.2 litros
0.845 moles ocuparan (0.845 . 67.2/ 3 ) = 18.9 litros
Mike is saving money for a new bike that costs $180.00.
If m represents the amount of money he has saved so far, which expression represents the amount of money,in dollars, he still needs to save?
A. 180 + m
B. 180 - m
C. 180 x m
D. 180 ÷ m
Answers
Answer:
180-m
Step-by-step explanation:
Answer:
The answer is B. 180-m....
anyone wanna t a l k?
Answers
Answer:
me im lonely
Step-by-step explanation:
Please help!! Giving brainliest and extra points!! (Click on the photo)
Answers
Answer:
156cm squared. It is the only reasonable one
Step-by-step explanation:
Evaluate Each Function:
p(x)=x-3; find p(x/3)
A. 3x-3
B. 2x-3
C. -3+[tex]\frac{1}{3}x[/tex]
D. x-6
Answers
Answer:
C. - 3 + 1/3xStep-by-step explanation:
Given
p(x)=x - 3Find
p(x/3)Substitute x with x/3:
p(x/3) = x/3 - 3 = -3 + 1/3xCorrect choice is C.
please help this is due tomorrow
Answers
Answer :
880 (hope this helps)
Step-by-step explanation:
l.w.h.
the length is 10
i geuss the wit is 11
and the hieght is 8
multiple in order.
I need help QUICK!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
How many solutions does this equation have? -5(4 - x) = -5x + 20
Answers
Answer
There is one solution
Step-by-step explanation:
-5(4 - x) = -5x + 20
-20 + 5x = -5x + 20
5x = -5x
My brain isn't working right now, please help.
Answers
Answer:
The author is trying to say that learning from before is not just learning acient times, but is also learning people of the past, how life was, and ways of living.
Step-by-step explanation:
HELP PLEASE HURRY... 65 POINTS
Answers
Answer:
the answer is A
Step-by-step explanation:
your welcome sorry if im wrong
Help!!! Please help me I need help on my homework!
Answers
Answer:
16
Step-by-step explanation:
the answer is 16 4 times 4.
This isn’t math but can someone please give me an example on how you would answer this?
Answers
Answer:
So I would say something like: My living situation doesn't effect my school work I have plenty of time to do my academics. I don't travel between homes I stay in one house. And I have access to a computer and cell phone. -Your friend, Bill Cipher
Step-by-step explanation:
Mrs. Ackerman bought a beach ball for her classroom. The diameter of the beach ball measured 23 inches. Which of the following is the best estimate of the volume of the beach ball?
Answers
6370 in3
Step-by-step explanation:
[will give brainlist] PLEASE HELP
Answers
Answer:
A
Step-by-step explanation:
Look at the positive-negative values of the quadrants.
The transformed figure still has positive x values, but now has negative y values.
Answer: B, cause it's the opposite of positive X, Y.
what is x squared minus 1 in factored form
Answers
Answer:
(x+1) (x-1)
Step-by-step explanation:
rewrite 1 as 1^2
Apply diffrence of two squares formula
x^2-y^2= (x+y)(x-y)
x^2-1^2= (x+1) (x-1)
A box contains 4 red pencils and 6 black pencils. What fraction of he pencils are red? What fraction of pencils are black? Draw a model.
Answers
Answer:
The fraction of the pencils that are red is 4/10. The fraction of the pencils that are black is 6/10.
Step-by-step explanation:
[I can't draw you a model but I reccomend that when you do, you seperate it into 10 pieces and mark 4 as red pencils and 6 as black pencils. You could also simplify 4/10 to 2/5 and 6/10 to 3/5, but instead you'd seperate the model into 5 pieces and mark 2 as red pencils and 3 as black pencils.]
First, let's add this up so we have our denominator.
4 + 6 = 10.
Now that we know that the denominator is 10, we apply it to the question.
The box has 4/10 red pencils and 6/10 black pencils.
The box has 4/10 red pencils and 6/10 black pencils.If you were to simplify, it'd be 2/5 red pencils and 3/5 black pencils.
Is Y=75x proportional or not proportional? (Please help)
Answers
Tyler buys 3 1/2 pounds of fresh beans. The beans are on sale for $0.98 per pound. Which expressions can Tyler use to calculate the amount of money that he will need to buy the beans? Check all that apply. 3 × 0.5 3.5 × 0.98 7/2 × 98/100 6 × 0.98 O 7 × 49/50
Answers
Answer:
B and C or in other words 3.5 x 0.98 and 7/2x98/100
Step-by-step explanation:
Polynomial Operations 1&2 Test 10 of 1610 of 16 Items Item 10 The height of a poster is 7x+10 and its perimeter is 20x+24 . What is the width of the poster?
Answers
Answer:
3x + 2
Step-by-step explanation:
The height of a poster is 7x+10 and its perimeter is 20x+24 . What is the width of the poster?
The shape of a poster = Rectangular shape
Hence:
The Perimeter of a Rectangle (Poster) = 2L + 2W
Where:
Length = Height = 7x + 10
Perimeter = 20x + 24
Therefore:
20x + 24 = 2(7x + 10) + 2W
20x + 24 = 14x + 20 + 2W
2W = 20x + 24 - (14x + 20)
2W = 20x + 24 -14x - 20
2W = 6x + 4
W = (6x + 4)/2
W = 3x + 2
Therefore, the width of the poster
= 3x + 2
-4x + 64 < 242 + 3x
Giving extra points
Answers
Answer:
x>−178/7
Step-by-step explanation:
I'm assuming you wanted to solve for the inequality of x, if so this is the answer.
A study of a population of 1,080 frogs revealed that 15 out of every 180 frogs in the population have spots on their back. Based on the results of this study, how many frogs in the population do NOT have spots on their back?
Answers
I need the answers please.
Answers
Answer:
(5,15)
Step-by-step explanation:
yeah thats the answer because
x=5
and
y=15 and x goes first so its (5,15)