Answer:
A
Step-by-step explanation:
As the sum of angles should be 0 for a straight line, 3x+8x-20+90=180, 3x+8x-20=90
Answer:
first
3x + (8x - 20) = 90
.......
simplify each expression
Answer:
3
Step-by-step explanation:
Given
[tex]\sqrt[3]{\sqrt{729} }[/tex]
Evaluate from the ' inside- out ' , that is
[tex]\sqrt{729}[/tex] = 27 , then
[tex]\sqrt[3]{27}[/tex]
= 3
Answer:
3
Step-by-step explanation:
[tex] \sqrt[3]{ \sqrt{729} } [/tex]
[tex] = \sqrt[3]{ \sqrt{ {27}^{2} } } [/tex]
[tex] = \sqrt[3]{27} [/tex]
[tex] = \sqrt[3]{ {3}^{3} } [/tex]
[tex] = 3[/tex] ✅
what is the answer to 90π + 2π(7.5)2
Answer:
635.75
Step-by-step explanation:
90π + 2π(7.5)²
~Simplify
90π + 2π(56.25)
~Multiply
282.5 + 2(176.625)
~Simplify
282.5 + 353.25
635.75
All this was simplified using PEMDAS.
Best of Luck!
15=a/3-2
please help !!
Here is your answer. Hope this helps you.
Answer:
51
Step-by-step explanation:
15= a/3 -2
17= a/3
51=a
In 2003, the population of an African country was about 22.5 million people, which is 1 million more than
5 times the population in 1950.
Enter and solve an equation to find the approximate population p (in millions) in 1950.
An equation is
The approximate population in 1950 was
million people.
Answer:
Population of Africa in 2003 is 22.5 million
population of Africa in 1950 is 1 million - 22.5 million /5
21.5million / 5
21500000/5
4300000
4.3 million people
pls help!! it will mean a lot thank you:)
The cost of a camp is $300 for the first week and $125 for each week beyond the first. The total cost can be modeled by the expression 300 + 125(x – 1). What does (x – 1) represent?
x - 1 is the total number of weeks minus the first
Answer: x-1 is number of weeks-1st week
Step-by-step explanation:
x represents the number of weeks bring the first.
-1 is to remove the first week that costs $300
Neeeeeeed helpppppppppppppp
Answer:
[tex]2^{1} + 3^{1}[/tex], [tex]2^{3} - 2^{1}[/tex], [tex]3^{2}[/tex]
Step-by-step explanation:
[tex]3^{2}[/tex] = 9
[tex]2^{3} - 2^{1}[/tex] = 6
[tex]2^{1} + 3^{1}[/tex] = 5
Step-by-step explanation:
Simplify the expressions
[tex]2 {}^{3} - 2 {}^{1} = 2 {}^{3} - 2 = 8 - 2 = 6[/tex]
[tex]2 + 3 = 5[/tex]
[tex] {3}^{2} = 9[/tex]
So the expressions from least to greatest is
[tex]2 {}^{1} + 3 {}^{1} < 2 {}^{3} - 2 {}^{1} < 3 {}^{2} [/tex]
Is the set of real numbers closed under addition? Explain why or why not. If it is not closed, give an example
Answer: Yes, the set of real numbers is closed under addition.
Explanation:
Let x and y be two real numbers. Their sum x+y is some other real number. This is what it means when we say the set of real numbers is closed under addition. Taking any two numbers and adding them will get us some other real number.
There is no way to have x+y be nonreal while x,y are both real.
Write an equation in point-slope form of the line that passes through the given point and
has the given slope: (3,4), m=1/3
Answer:
y - 4 = 1/3 (x - 3)
Step-by-step explanation:
Mike weights 200 pounds and plans to lose 1.5 pounds a week. Jeff weights 180 pounds and plans to lose 0.5 pounds a week. When mike and Jeff weigh the same?
Answer:
20 weeks
Step-by-step explanation:
200-1.5w=180-0.5w
You can double-check by substituting 20 for w (weeks), if it is equal, then the equation is correct.
solve the simultaneous equation
x+2y=5
x²-y²=-3
Answer:
y = 14/3 and 2
x = -13/3 and 1
(-13/3, 14/3) and (1, 2)
Step-by-step explanation:
[tex]x + 2y = 5 - - - (a) \\ {x}^{2} - {y}^{2} = - 3 - - - (b)[/tex]
for equation (a)
make x the subject of the formular:
[tex]x = 5 - 2y - - - (c)[/tex]
for equation (b)
[tex] {x}^{2} - {y}^{2} = - 3[/tex]
substitute for x as 5 - 2y in equation (b):
[tex] {(5 - 2y)}^{2} - {y}^{2} = - 3 \\ (25 - 20y + 4 {y}^{2} ) - {y}^{2} = - 3 \\ 25 - 20y + 3 {y}^{2} = - 3 \\ {3y}^{2} - 20y + 28 = 0 \\ (3y - 14)(y - 2) = 0[/tex]
therefore,
[tex]y = \frac{14}{3} \: \: and \: \: 2[/tex]
substitute for all values of y in equation (c):
for y = 14/3:
[tex]x = 5 - 2( \frac{14}{3} ) \\ \\ x = 5 - \frac{28}{3} \\ \\ x = - \frac{13}{3} [/tex]
for y = 2:
[tex]x = 5 - 2(2) \\ x = 5 - 4 \\ x = 1[/tex]
Answer:
(1, 2)
(-13/3, 14/3).
Step-by-step explanation:
x + 2y = 5
x² - y² = -3
From the first equation x = 5 - 2y
Substitute for y in the second equation:
(5 - 2y)^2 - y^2 = -3
25 + 4y^2 - 20y - y^2 = -3
3y^2 - 20y + 28 = 0
Factoring:-
(3y - 14(y - 2) = 0
y = 2, 14/3.
So when y = 2, x = 5 - 2(2) = 1.
When y = 14/3, x = 5 - 2(14/3) = -13/3.
Checking the results in the second equation:
(1, 2):-
1^2 - 2^2 = -3 Correct.
(-13/3, 14/3):-
(-13/3)^2 - (14/3)^2 = -3 Correct.
[(30 + 6) − 3^2] ÷ 9 ⋅ 2
Answer: 6
Step-by-step explanation:
[tex]((30+6)-3^{2})\div9\times2\\(36-9)\div9\times2\\(27)\div9\times2\\3\times2\\6[/tex]
Answer:
135/46
Step-by-step explanation:
30+6=36
3^2 = 9
36-9=27
27/9.2=135/46
Which function is the same as the linear function represented by the table ?
Answer:
A) y = 3x – 2
Step-by-step explanation:
Just check the results: when you put the numbers of the x-colum from the table, the result will be the corresponding numbers of the y-colum. and that means this is the right equation
Please help it is geometry will mark branliest
the one on the left is (2,2) the one on the right is (8,2)
Each letter stands for a different digit. What
number does ABC represent?
АА
ВВ
+СС
____
АВС
Answer:
A = 1, B = 9, C = 8Step-by-step explanation:
Given:
AA + BB + CC = ABCRewrite it as:
11A + 11B + 11C = 100A + 10B + C89A = B + 10CSince all A, B, C are integers from 0 to 9, A can be 1 only, then we have:
B + 10C = 89or
CB = 89It gives us:
C = 8, B = 9The equation is:
11 + 99 + 88 = 198Answer:
ABC=198
Step-by-step explanation:
If you do 11+99+88 then you get 198 which is true to the problem that you have.
Kim was given $16 for weeding the
garden. She now has $39. How much
money did she start with?
admission to local art museum is $8 for each adult. How much does it cost for $4 adults to attend the museum
pls guys i need help fast D:
√1024
√10000
√1296
Answer:
1. 32
2. 100
3. 36
..........................
Answer:
32
100
36
Step-by-step explanation:
Find an
expression which represents the sum of (-X – 7) and (-9x + 6) in
simplest terms.
Answer:
sum is -(10x + 1)
Step-by-step explanation:
[tex]( - x - 7) + ( - 9x + 6) \\ = ( - x - 9x) + (6 - 7) \\ = - 10x - 1 \\ = - (10x + 1)[/tex]
Answer:
[tex]( - x - 7) + ( - 9x + 6) \\ = - x - 7 - 9x + 6 \\ = - 10x - 1 \\ thank \: you[/tex]
Question 7
Which graph best represents the solution to the following inequality?
+ 5 > 11
A
16
17
19 20 21 22
23 24 25
O
15
16
17
18 19 20 21 22
23
24 25
c.
10 11
3 4 5
12
15
13 14
D.
8
10
11
12
13
14
15
Answer:
D
Step-by-step explanation:
x + 5 > 11
is the same as
x > 6
and because it is ">" and not ">=", the solution point is not included.
therefore the right graph is D and not C. an empty little circle means "excluded", while a filled, black circle means "included".
B. Find the equation of the line parallel to 6x+2y = 10
and passing through (-3,5).
Answer:
[tex]The\,\,derived\,\,equation\,\,is\\6x+2y=-8[/tex]
Step-by-step explanation:
Given, equation of line
[tex]6x+2y = 10......(i)\\\\Parallel\,\,line\,\,of\,\,the\,\,equation\,\,(i),\\6x+2y=k.....(ii)\,\,;[here,\,\,k\,\,is\,\,a\,\,constant]\\\\The\,\,line\,\,(ii)\,\,passes\,\,through\,\,the\,\,point\,\,(-3,5),\\6*(-3)+2*(5)=k\\So,\,\,k=-8\\\\Therefore,\,\,the\,\,derived\,\,equation\,\,is\\6x+2y=-8[/tex]
Hope you have understood this.....
ask me if you have any confusion.....
if you liked it pls mark it as the brainliest
Please help me I’ll give a brainly! It’s due soon!
Hi! I'm happy to help!
First, we need to get our two equations, so we need to look at what facts we have throughout the equation. It tells us that x is 3 times as much as y. We can use this to write our first equation:
3y=x
All of the interior angles inside of a triangle add up to 180°, and because we already have 3 angles, we can use this information to make our second equation:
x+y+45=180
Now, we have to use these equations together to get our answer.
Since we can replace 3y for x (first equation) we can replace it in our second equation:
3y+y+45=180
We edit both sides of the equation in the same way to get the same outcome, but to simplify. Since we are solving for y, let's isolate it by subtracting 45 from both sides:
3y+y+45=180
-45 -45
3y+y=135
Let's combine the 3y and y to make things simpler:
4y=135
From here, we divide both sides by 4, to isolate y:
y=33.75
Now that we have our y value, we can use our first equation to solve for x:
3y=x
3(33.75)=x
101.25=x
We used our equations to get both our x and y values: 33.75, and 101.25.
I hope this was helpful, keep learning! :D
12. Find the component form of the vector that translates A(-4, 8) to A'(7, -9).
Answer:
a-4,8+_84(4+4(*:84
dirkrk
The component form of the vector that translates will be 11i - 17j.
What is a transformation of a point?A spatial transformation is each mapping of feature space to itself and it maintains some spatial correlation between figures.
The translation does not change the shape and size of the geometry. But changes the location.
The point A(-4, 8) is translated to the point A'(7, -9). Then the rule of the transformation is given as,
(7, - 9) = (- 4 + x, 8 + y)
Compare the abscissa, then we have
7 = - 4 + x
x = 7 + 4
x = 11
Compare the ordinate, then we have
y + 8 = - 9
y = - 8 - 9
y = - 17
The component form of the vector that translates will be 11i - 17j.
More about the transformation of a point link is given below.
https://brainly.com/question/27224339
#SPJ2
whhat is the degree of x2 y3 + a3 b4 -7
Given Polynomial
[tex]\\ \sf\longmapsto x^2y^3+a^3b^4-7[/tex]
Calculate degrees of all variables
x=2y=3a=3b=47=1B has highest degree
Hence degree of polynomial is 4
It is a tetranomial
A recipe for cookies uses sugar and baking powder. The recipe uses uses 3/4 cups of sugar and 1/2 teaspoon of baking powder
Answer:
5/4 or 1 . 1/4
Step-by-step explanation:
3/4 + 1/2 = 5/4 or 1 . 1/4
the difference between 2 numbers is 12. the larger number is 3 times the smaller. what are the numbers
Step-by-step explanation:
hope it helps you check it if there is a mistake sorry!! for that
Add. Write your answer as a fraction in simplest form. 6+(−4 3/4)+(−2 1/8)=
Is 8 1/4 an irrational number?
Kareem is putting 8 books in a row on his bookshelf. He will put one of the books, Pride and Prejudice, in the first spot. He will put another of the books, Little Women, in the last spot. In how many ways can he put the books on the shelf
Answer:
720
Step-by-step explanation:
He has 8 books. He knows the placement of 2... so
8 - 2 = 6
To find the total... 6!
6*5*4*3*2*1 = 720
The required number of the ways the book is arranged on the shelf is 720 ways.
Given that,
Kareem is putting 8 books in a row on his bookshelf. He will put one of the books, Pride, and Prejudice, in the first spot. He will put another of the books, Little Women, in the last spot. In how many ways can he put the books on the shelf is to be determined.
In arithmetic, combination and permutation are two different ways of grouping elements of a set into subsets. In combination, the components of the subset can be recorded in any order. In a permutation, the components of the subset are listed in a distinctive order.
here,
There are 8 books to be arranged, 1st and last place is fixed,
now remaining books = 8 - 2 = 6
now, a number of combinations can be formed with the number 6,
= 6!
= 6×5×4×3×2×1
= 720
Thus, the required number of the ways the book is arranged on the shelf is 720 ways.
Learn more about permutations and combinations here:
https://brainly.com/question/2295036
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Pls can anyone mention pri.e numbers from 1 to 100..
Pls answer ASAP
Scammers will be reported!!!
hope it will help you Mark me as brilliant
Answer:
hope this helps and you meant prime numbers
Step-by-step explanation:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97