Simplify.
(5 square root2 -1)²
Please help
Answers
Answer: 21-4√5
Step-by-step explanation:
Related Questions
please help!! i’d really appreciate this! i’ll give you brainliest
Answers
[tex]\huge\longmapsto\sf \mathfrak{Answer : }[/tex]
Area of trapezoid :
[tex] \boxed{ \frac{1}{2} \times (a + b) \times h}[/tex]
where,
a and b are parallel sides h is heightso,
[tex] \longmapsto{ \dfrac{1}{2} \times (6 + 8) \times 4}[/tex]
[tex] \longmapsto{2 \times 14}[/tex]
[tex] \longmapsto{28}[/tex]
hence, Area = 28 unit²
45 Points HELP RIGHT NOW!!!! Due in 2 hours!!!!! NO websites are allowed and please give me the order like this I need the steps too!!! I will mark you brainless too don’t answer for points or your reported
1 (table)
2(dog walker)
3(Ms Scholl)
Answers
Kayaker=12.5, so 12 knots
Commercials=9 commercials per hour
Dog= 7 miles
Tutoring=750 dollars
HELP ASAP!
Find the surface area of the figure. Round to the nearest hundredth if necessary ^
Answers
Answer:
1187.52 yd^2
Step-by-step explanation:
SA=2πrh+2πr^2
R=9
H=12
So, 2(3.14)(9)(12)+2(3.14)(9)(9)=1187.57yd^2
Which exponential function is graphed here.
A) y= 5x
B) y= 5e^x
C) y= 5^x+1
D) y=5^x+1
Answers
Answer:
Y=5x
Step-by-step explanation:
EXPLANATION PLEASE AND ILL BRAINLIEST YOU
Answers
Answer:
blank 1: 24
Step-by-step explanation:
According to Pythagoras' Theorem, in a right-angled triangle,
(side 1)² +(side 2)²= (hypotenuse)²
Applying Pythagoras' Theorem,
x² +18²= 30²
x² +324= 900
x²= 900 -324 (-324 on both sides)
x²= 576
[tex]x = \sqrt{576} [/tex]
x= 24 ft
Is this unbiased or biased?
The Bernal leadership class is going to sell spirit t-shirts for students and needs to order a color that most students would like to wear, so they ask every fourth student entering the school about their favorite t-shirt color to make a decision about all Bernal students.
Answers
Biased, because some students may not like that color, and thus going off of the most popular opinion is only supporting the most popular color. Adding onto that, not every student even gets to vote since it is only every 4th student.
have x 50 notes and y N100 notes. There
are eight notes altogether and their total
value is N550. How many of each note do
I have
Answers
Answer:
hi
Step-by-step explanation:
hi
1. 50x + 100y = 550 (value of the notes x the number of each note)
2. x + y = 8 (the number of each note added).
3. Multiply the second equation by 50 so that it the x variables are the same in both equations. Thus, 50x + 50y = 400.
4. Subtract 50x + 50y = 400 from 50x + 100y = 550.
5. The subtraction results in 50y = 150.
6. Divide by 50. y = 3, so x must equal 5.
A recipe for lemonade calls for 4
cups of sugar for every 24 cups of cold
water. If you only have 2 cups of sugar,
how much water should you use?
Answers
6 • 2 = 12
12 cups of water
Use the calculator to see how much you can save. Let's say you start with $2,000, save $100 a month for 10 years, and the account has a 2.5% interest rate. Based off of that calculation, how much interest would you earn?
Answers
Answer:
2500
so first you have to 100x 10 then times 2.5
Step-by-step explanation:
Help me find the slope and y-axis intersect of this problem.
Answers
Answer:
Y- intercept is 0,3
Slope is 3/2
Step-by-step explanation:
3x + 2y = 9
y = 4x – 1
(solve algebraically)
Answers
3x+2(4x-1)=9
11x-2=9
+2 +2
11x=11
X=1
Y=4x-1
Y=4(1)-1
Y=3
Write a set of parametric equations for the equation x = 3y - 2 given that t= x + 3
Answers
Answer:
i hope you meant "y" instead of "t" because that would make so much more sense. all you have to do with this is replace "y" in the equation with "x + 3" (this makes the equation x = 3[x + 3] - 2). now, you multiply and combine the like-terms (making x = 3x + 7). you now continue by subtracting 3x from both sides of the equation to make -2x = 7 and dividing to make x = -3.5
Step-by-step explanation:
x = 3(x + 3) - 2
x = 3x + 9 - 2
x = 3x + 7
-2x = 7
x = -3.5
Two points are shown on the graph.What is the approximate distance between the points M and N
Answers
Answer:
B. 12 units
Step-by-step explanation:
which expression is equivalent to ? Assume .
Answers
Answer:
A)
Step-by-step explanation:
f(x) = x°-9x
g(x) = x2 - 2x-3
Which of the following expressions is equivalent to f(x)/g(x), for x > 3
Answers
and
g(x)=x^2-2x-3
so you just need to divide f(x) by g(x)
Therefore:
f(x)/g(x) = (x^3-9x) / (x^2-2x-3)
and of course you need to factor these two function to see if some factor would cancel another
x^3-9x = x(x^2-9)=x(x-3)(x+3)
and
x^2-2x-3 = (x-3)(x+1)
eight less than five times a number is greater than 6
Answers
Answer:
8 - 5x > 6
Step-by-step explanation:
Answer is in the problem:
eight = 8
less than = minus ( - )
five times a number = 5x (dont know the number so we put down "x")
is greater than 6 = > 6
does that make sense?
Please help me Sally hiked 6 tenths of a 3.6 mile trail. How many miles did Sally have left to hike?
Answers
Answer:Sally hiked 2.16 miles
Step-by-step explanation:
Sally hiked 6 tenths of a 3.6 mile trail.
6 tenths means 6/10
Therefore, Sally hiked 6/10 x 3.6 mile= 2.16 miles
Choose the expression that shows the difference between x and y.
Answers
Answer:
the difference between x and y is x-y.
Step-by-step explanation:
A circular pool has a radius of 3.2 meters. which is closest to the area of the pool
Answers
Answer:
32.17
Step-by-step explanation:
[tex]A= \pi[/tex] × [tex]r^{2}[/tex]
A= [tex]\pi[/tex] × [tex]3.2^{2}[/tex] ≈ [tex]32.16991[/tex]
A= [tex]32.17[/tex]
Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 95 miles per hour. The eastbound train travels at 105 miles per hour. How long will it take for the two trains to be 440 miles apart?
Do not do any rounding.
[] hours
Answers
Answer:
2.2 hr
Step-by-step explanation:
Let t = time
95t = distance of westbound train
105t = distance of eastbound train
95t + 105t = 440
200t = 440
t = 2.2 hr.
Al comprar 5kg de arroz y 6kg de frijol se pagaron 132 pesos.Si se compran 6kg de arroz y 7kg de frijol, se pagan 157 pesos. ¿Cuánto cuesta el kilo de frijol?
Answers
Answer:
El kilo de frijol cuesta 7 pesos.
Step-by-step explanation:
Un sistema de ecuaciones lineales es un conjunto de ecuaciones lineales con las mismas incógnitas, que se relacionan mediante dichas ecuaciones.
Resolver un sistema de ecuaciones consiste en encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.
Para el planteo de este problema mediante un sistema de ecuaciones se debe plantear las siguientes variables:
x: precio de 1 kg de arrozy: precio de 1 kg de frijolAl comprar 5 kg de arroz y 6 kg de frijol se pagaron 132 pesos. Entonces, esto se representa mediante:
5*x + 6*y= 132
Si se compran 6kg de arroz y 7kg de frijol, se pagan 157 pesos. Entonces, matemáticamente se expresa como:
6*x + 7*y= 157
Por lo que el sistema de ecuaciones a resolver es:
[tex]\left \{ {{5*x+6*y=132} \atop {6*x+7*y=157}} \right.[/tex]
Deseas conocer el precio del kilo de frijoles, es decir, que deseas conocer el valor de la variable y.
Resolviendo mediante el método de sustitución (que despejar una de las incógnitas en una de las ecuaciones y sustituir la expresión en la otra), despejamos el valor de la variable x de la primer ecuación:
[tex]x=\frac{132-6*y}{5}[/tex]
Reemplazando esta expresión en la segunda ecuación y resolviendo se obtiene:
[tex]6*\frac{132-6*y}{5}+7*y=157[/tex]
[tex]\frac{6}{5}*(132-6*y)+7*y=157[/tex]
[tex]\frac{6}{5}*132-\frac{6}{5}*6*y+7*y=157[/tex]
[tex]158.4-7.2*y+7*y=157[/tex]
-7.2*y + 7*y= 157 - 158.4
-0.2*y= -1.4
y= -1.4÷ (-0.2)
y= 7
El kilo de frijol cuesta 7 pesos.
Given the circle O with the diameter AB. Find x in degrees.
A) 40 degrees
B) 60 degrees
C) 80 degrees
D) 120 degrees
Answers
Answer:
B) 60 degrees
Step-by-step explanation:
. If you know the circumference of the circle, divide it by π to get the diameter.
please helppp me. and i will follow u
Answers
Step-by-step explanation:
here is the answer
-4&2Bx=4 and x=2
[tex] \frac{15}{100} \times 115[/tex]
Answers
Answer:
3/5
Step-by-step explanation:
A regulation baseball has a diameter of about 3 in.
What is the best approximation for the volume of this baseball?
I WILL GIVE YOU BRAINLIEST!!!!!!!!!!!!!!!!!!
14.13 in³
28.26 in³
84.78 in³
113.04 in³
Answers
ANSWER: I think that the answer is 28.26
Step-by-step explanation:
I did this a while ago. I hope that I helped<3
Help check the photo
Answers
1.b) you put each in a calculator to find the values in decimal form
A farmer filled two cylindrical silos with wheat. The wheat in both silos has a density of 50 pounds per cubic foot. He had the wheat tested for protein content.
• The larger silo has a radius of 5 feet, a height of 10 feet, and the wheat is 12% protein.
• The smaller silo has a radius of 6 feet, a height of 6 feet, and the wheat is 15% protein.
The farmer states that the wheat in each silo contains over 5000 pounds of protein. Which of these is a correct evaluation of the farmer’s statement?
A.) He is correct about the protein content in both silos.
B.) He is incorrect about the protein content in both silos.
C.) He is correct about the protein content in the larger silo but incorrect about the protein content in the smaller silo.
D.) He is incorrect about the protein content in the larger silo but correct about the protein content in the smaller silo.
Answers
Answer:
d
Step-by-step explanation:
volume of a cylinder = nr^2h
n = 3.14
r = radius
Volume of bigger cylinder = 3.14 x 5^2 x 10 = 785
total density = 50 x 785 = 39250
Protein content = 0.12 x 39250 = 4710
Smaller cylinder = 3.14 x 6^2 x 6 = 678.24
678.24 x 50 = 33912
33912 x 0.15 = 5086
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Answers
I bought 5 crates of apples. Each crate contains 10 apples. I want to display the apples on 5 shelves. How many apples will be on each shelf?
Answers
Answer:
10
Step-by-step explanation:
I bought 5 crates of apples
Each crate contains 10 apples
I want to exhibit the appleonin 5 shelves
Therefore the apples on each shelve can be calculated as follows
Total apples= 50
= 50/5
= 10
Hence there would be 10 apples on each shelf
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At a movie theater 4 out of the first 10 customers bought popcorn. Based on this information, if 180 people go to the movie theater, how many would be expected to buy popcorn?
Answers
Answer:
72 people.
Step-by-step explanation:
4 out of 10 is 40%. Now apply that to 180. 40% of 180 is 72. Hope this helps.