Answers
Answer:
2. is the correct one
Step-by-step explanation:
4x-3x^3+2
Answer:
-x^3-4x-2
step by step
Related Questions
20 points
Determine whether the statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement.
To solve the system below by substitution, replace y in the second equation with 7−6x.
6x−y=7
2x+y=5
This statement is true.
This statement is false. To solve the system by substitution, replace x in the second equation with 7−6x.
This statement is false. To solve the system by substitution, replace y in the first equation with 7−6x.
This statement is false. To solve the system by substitution, replace y in the second equation with 6x−7.
Answers
Answer:
To solve the system below by substitution, replace y in the second equation with 7−6x.
==> False
This statement is false. To solve the system by substitution, replace x in the second equation with 7−6x.
==> False.
This statement is false. To solve the system by substitution, replace y in the first equation with 7−6x.
==> False
This statement is false. To solve the system by substitution, replace y in the second equation with 6x−7.
==> True.
From the first equation, 6x-y=7
y= 6x-7
Answer: This statement is false. To solve the system by substitution, replace y in the second equation with 6x−7.
You have $49 to spend on vacation in LA. If sales tax in Los Angeles is 9.75% and you want to buy a pair of shoes that are priced at $45, do you have enough money
Answers
45 * 1.0975= 49.39
simplify (-2n"4+8n"5+7n"3+3)
Answers
Answer:
okay I think this is the right answer if not I'm sorry
−576n⁴-1152x⁵
Helppp meh please please
Answers
2nd box= 100
Hello can you help meee
Answers
Answer:
[tex]x=4\sqrt{2}[/tex]
Step-by-step explanation:
The given triangle is a 45°-45°-90° triangle. Use the following rule:
[tex]leg=leg\\\\hypotenuse=leg*\sqrt{2}[/tex]
The length of the legs is 4. Insert this value into the equation:
[tex]h=4*\sqrt{2}[/tex]
Simplify:
[tex]h=4\sqrt{2}[/tex]
:Done
A= 1/2 π r ^2 solve for pi
Answers
Answer:
Well thats pretty easy. the answer is non-determineable
Step-by-step explanation:
prove me wrong
The solution for pi is π = 2A/r² where r is the radius.
What is the area of a circle?The area of a circle is defined as the space occupied by the circle in a two-dimensional plane. In other word, the space occupied under the region or circumference of a circle is called the area of the circle.
The formula for the area of a circle is A = πr²,
Where r is the radius of the circle.
For example, if the radius of circle is 6cm, then its area will be: Area of a circle with 6 cm radius = πr² = π(6)² = 36π square cm.
Given data as :
A = 1/2 πr²
Solve for pi
⇒ A = 1/2 πr²
Multiply by 2 both the side
⇒ 2A = πr²
⇒ 2A/r² = π or
⇒ π = 2A/r²
If A = 76 cm² and π = 22/7,
⇒ A = πr²
⇒ A/π = r²
⇒ √A/π = r
Substitute the values, we have:
⇒ √76 /(22/7) = r
⇒ √76 * 7/22 = r
⇒ √532/22 = r
⇒ √24.1818 = r
⇒ 4.917 = r
⇒ r = 4.92 cm (Rounding to two decimal places)
Learn more about the area of the circle here:
brainly.com/question/11952845
#SPJ2
The question seems to be incomplete the correct question would be
If A = 76 cm² and π = 22/7, what is the value of r in centimeters?
Sonya made 64 mini cakes for a bake sale at her school. After every 16th cake,
she took a break. How many breaks did she take?
Answers
Answer: 4 breaks
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
64÷16=4 breaks
Hope this helps :>
Rewrite the expression in the form 8^n
(8^-8)(8^3)
Answers
Step-by-step explanation:
Law of Indices:
a^m * a^n = a^(m + n)
Hence,
8^(-8) * 8^(3) = 8^(-8 + 3) = 8^(-5).
Answer:
8^‐5
Step-by-step explanation:
I think this is correct. if those are exponents.
SOMEONE PLEASE HELP ASAP NEEDA TURN IT IN IM GIVING 100 POINTS AND BRAINLIEST!!!
A 20 foot ladder is placed against a wall at a 75 degree angle with the ground. The wall is perpendicular to the ground.
PART A: How high on the wall, in feet, will the ladder reach? Round your answer to the nearest tenth. Show your work.
PART B: What is the distance, in feet, from the wall to the base of the ladder? Show your work.
Answers
Answer:
Part A)
Height = 19.3 feet
Part B)
Distance = 5.2 feet
Step-by-step explanation:
Part A)
Let ladder reaches upto the h height of the wall.
[tex] \therefore \sin \theta =\frac{h}{length\: of\: the \:ladder} [/tex]
[tex] \therefore \sin 75\degree =\frac{h}{20} [/tex]
[tex] \therefore 0.9659258263 =\frac{h}{20} [/tex]
[tex] \therefore 0.9659258263\times 20 = h [/tex]
[tex] \therefore 19.3185165 \: ft= h [/tex]
[tex] \therefore h = 19.3 \: ft= h [/tex]
Part B)
Let the distance from the wall to the base of the ladder be x feet.
[tex] \therefore \cos \theta =\frac{x}{length\: of\: the \:ladder} [/tex]
[tex] \therefore \cos 75\degree =\frac{x}{20} [/tex]
[tex] \therefore 0.2588190451 =\frac{x}{20} [/tex]
[tex] \therefore 0.2588190451\times 20 = x [/tex]
[tex] \therefore 5.1763809 \: ft= x [/tex]
[tex] \therefore x = 5.2 \: ft [/tex]
A rainwater was 2/3 full of water. After 60 liters of water were used from the barrel, it was 5/12 full. How much water does the barrel hold when full?
Answers
Answer: 240 liters
=======================================================
Work Shown:
x = capacity of barrel in liters
This value of x is some positive real number. It represents the most amount of water the barrel can hold.
The problem states that the barrel is 2/3 full to start with. This means, we start off with (2/3)x liters of water. Then we subtract off 60 of them to get to 5/12 full, meaning we have (5/12)x liters left.
We can form this equation
(2/3)x - 60 = (5/12)x
Multiply both sides by 12 to clear out the fractions
(2/3)x - 60 = (5/12)x
12*( (2/3)x - 60 ) = 12*(5/12)x
12*(2/3)x - 12*60 = 12*(5/12)x
8x - 720 = 5x
From here we solve for x
8x - 5x = 720
3x = 720
x = 720/3
x = 240
The barrel's full capacity is 240 liters
--------------------------
Check:
2/3 of 240 = (2/3)*240 = 160
The barrel starts off with 160 liters of water inside.
We then use 60 of them to be left with 160-60 = 100 liters
Note how 100/240 = (5*20)/(12*20) = 5/12, showing that 100 liters out of 240 total reduces to the fraction 5/12. In other words, when we say "5/12 full" we mean 100 liters full. This helps confirm we have the right answer.
Which expression is equivalent to
8g + 2+ 4g - 2 -2g?
1. 16g+4
2.16g
3.10g+4
4.10g
Answers
Answer:
4. 10g
Step-by-step explanation:
8g + 2 + 4g - 2 - 2g
8g + 2 + 4g - 2 - 2g = 10g
8g + 2 + 4g - 2 -2g = 0
Final Answer:
10g
Which of the following could be the ratio between the lengths of the two legs
of a 30-60-90 triangle?
Check all that apply.
O A. 15:15
OB. 1: 15
O C. 1: 2
OD. 25
E. 2.5: 6
OF. v2:
Answers
9514 1404 393
Answer:
B, E
Step-by-step explanation:
The ratios of side lengths in a 30-60-90 triangle are ...
1 : √3 : 2
The two legs are the shorter sides, so any ratio that reduces to 1 : √3 is an appropriate choice:
B. 1 : √3
E. 2√3 : 6
what is 8+3-2=a
helpppp
Answers
What's 200×8797 and rate my L drawing
Answers
Answer:
1759400
I like that a lot actually !!
Step-by-step explanation:
Have A Wonderful Day !!
We have 4 3/4 pounds of apple in each bag. If there are four bags, how many pounds of apples are there in all
Answers
(9h + 7j) – (7h – 2;)
Help meeeee
Answers
Answer:
2h+7j+2
Step-by-step explanation:
9h-7h=2
the 7j has nothing to add or subtract
the 2 is a -(-2) so you'd add it.
In a study of 82 Halo game players, it was found that the ages of these players were normally distributed, with a mean age of 17 years and a standard deviation of 3 years. Find the z score for a 21 year old.
A.) 2
B.) -2
C.) -1.33
D.) 1.33
Answers
Answer:
c
Step-by-step explanation:
and bro i am i have a brother that always on my account makes me that im cheating that im not and he always blames me so thats why my bro has too many gfs and always blames me
pls help you i’ll give brainliest
Answers
The answer is 6+(-4) = 2
Answer:
2
Step-by-step explanation:
it's just like saying 6-4 is two a negative is like a positiveAn amusement part sells children
tickets, c, for $15 and adult tickets,
a, for $22. On Monday they sold
438 tickets and earned a total of
$7,067. How many children and
adult tickets did they sell on
Monday?
Answers
Then,x+147 = number of children's tickets
8/1 = (x+147) / x
x + 147 = 8x
7x = 147
x = 21
They sold 21 adult tickets and 168 children's tickets.
what is the rate of change for the function y= 5x+ 25
Answers
Answer:
5
Step-by-step explanation:
100% right!!
Answer:
5 or -5
Step-by-step explanation:
rate of change is the same thing as slope (or m)
plz answer only if correct!!
Answers
Solve the equation: 2 (x + 2x) - 36
A) X=-18
B) x = 18
cx = -6
D) x = 6
Answers
______________________________
1.) Divide both sides by 2:[tex]2[/tex] ÷ [tex]2=[/tex] Cancels Out[tex]36[/tex] ÷ [tex]2=18[/tex]
- We do this first because we need the get rid of the parenthesis in order to solve this like a regular problem. In this case the only way to do so was to divide by 2 to separate the Number/Variable from the parenthesis.
Equation at the end of Step 1:
[tex]x+2x=18[/tex]2.) Combine x and 2x:[tex]x+2x=3x[/tex]
- We do this because we can't have 2 variables at the end of the equation so it's best to just combine them.
Equation at the end of Step 2:
[tex]3x=18[/tex]3.) Divide both sides by 3:[tex]3x[/tex] ÷ [tex]3=x[/tex][tex]18[/tex] ÷ [tex]3=6[/tex]- We divided for the last step since their was 1 variable connected by a number and another number on the opposite side of the equal.
______________________________
A battery factory typically produces 12,000 batteries per day and uses 50 boxes for packing the battiest. If the number of boxes needed for packing is proportional to the number of batteries produced, how many more boxes would be needed in a day when 18,000 battiest are produced
Answers
Answer:
Number of extra boxes= 120
Step-by-step explanation:
Giving the following information:
Batteries per box= 50
Number of batteries= 18,000
Number of batteries in ecxess= 6,000
We need to calculate the number of boxes required to cover the 6,000 extra batteries:
Number of extra boxes= number of batteries / batteries per box
Number of extra boxes= 6,000 / 50
Number of extra boxes= 120
Which typist is faster,
Glenda, typing 195 words in 3 minutes, or
Jorge, typing 236 words in 4 minutes?
How do you know?
please help <3
Answers
Answer:
Glenda is faster
Step-by-step explanation:
Glenda types 65 wpm (195/3), and Jorge types at 59 wpm (236/4)
2x+3y=12 Complete the missing value in the solution to the equation. (_,8) I NEED HELP QUICK
Answers
Answer:
-6 is the missing value.....
Answer:
(-6, 8); the missing value is -6
Step-by-step explanation:
First, you need to solve the given equation for x
1: 2x + 3y = 12 (Given)
2: 2x = -3y + 12 (Subtract 3y from both sides to isolate x)
3: x = -1.5y + 6 (Divide both sides by 2)
Now, you can solve for the missing x in the solution set (x, 8):
where x = -1.5y + 6 and y = 8,
x = -1.5(8) + 6
x = -12 + 6
x = -6
So, the missing value is -6
i need help again><><><><>
Answers
Area of triangle = 1/2 b x h
= (1/2 9) x 4
= 4.5 x 4
= 18 cm square
Then after finding the area of the triangle your gonna find the area of the rectangle.
Area of rectangle = length x width
12 x 4 = 48
= 48 cm square
Then your gonna subtract the area of the triangle from the area of the rectangle.
Area of rectangle = 48 cm square
Area of triangle = 18 cm square
= 30 cm square
So the shaded region is 30 cm square
Could i have the answer to this question please?
Answers
Answer:
a) I don't know sorry
b) i think 2,25km but i'm not sure
Step-by-step explanation:
1:25 000 cm
1:25 00 dm
1:250 m
1:0,025 km
9.250=2250
2,25
there is 1 person he has a friend how do you add him on brainly and how many people are there in total?
Answers
Hope this helps
Have a great day/night
Solve for the unknown quantity in each proportion.
k over three equals three over nine
A. 1
B. 3
C. 9
D. 27
Answers
Answer:
c
Step-by-step explanation:
you would cross multiply
find the value of x.
Answers
Answer:
Step-by-step explanation:
the ration of the 2 figures are 4/3 from the larger to the smaller one
this means that 4/3*6=8
x-1=8
x=9
choice c