180°
sum of angles of triangle = 180°
Answer:
∠A + ∠B + ∠C = 180⁰
Step-by-step explanation:
The sum of the angles in a triangle is 180. This sum is a semicircle or a straight angle. The angle of the semicircle is × 360⁰.
________________
Evaluate the function
Answer:
f = 9.25 (I think but maybe I read f(4) wrong)
Step-by-step explanation:
so f(4) means x = 4.
The new equation is
f(4) = 2x4 ^2 - 4 + 9
you first do 2x4^2. The minus 4. The add 9.
the answer to that is 4f = 37
Then solve
F = 9.25
the length of the pool is 5 meters more than it’s width. The area is 24 square root. What is the length of the pool?
help with either of these questions pleaseee at least one of them I’m so confused rn I’d really appreciate it and will brainlist you dw
Step-by-step explanation:
a) Fred → 35 years old
James → J years old
(3 × J) - 1 = 35
3J - 1 = 35
b) the number of people (n) Anita can invite depends on her age (A) and you add (+) 2.
therefore, n= A +2
2.a) n represents the no of phones he sells.
so if he charges $10 for a phone, then
n × 10 will represent the amount of money he makes for the no of phones he sells. you are given that P represents the amount of money he makes from selling a phone which is 10N and also his weekly salary, $ 250. this is the amount of money he receives for the whole week.
Hence, 10n + 250 = P
ans: P= 10n + 250
b) the next week he sells 20 phones. he charges $10 per phone. then he will make $200 from selling the phones. but he will also receive his weekly salary, which is $250. total money he receives equals $450.
a better way to reach the answer is using the above equation:
P = 10n + 250, where n= 20
P= (10*20) + 250
P= $450
hope you understand this now,
s.
Help me with this quick!!!
Answer:
Step-by-step explanation:
A: -1/3x+1
B: 1/4x -2
Answer:
Given Below.
question (a)
coordinates:
(0,1), (3,0)
slope:
[tex]\frac{0-1}{3-0}[/tex]
[tex]-\frac{1}{3}[/tex]
equation:
[tex]y - y1 = m(x - x1)[/tex]
[tex]y - 1 = -\frac{1}{3} (x-0)[/tex]
[tex]y = -\frac{1}{3}x+1[/tex]
question (b)
coordinates:
(0,-2) , (4, -1 )
slope:
[tex]\frac{-1--2}{4-0}[/tex]
[tex]\frac{1}{4}[/tex]
equation:
[tex]y - y1 = m(x - x1)[/tex]
[tex]y + 1 = \frac{1}{4} (x - 4)[/tex]
[tex]y=\frac{1}{4} x -1-1[/tex]
[tex]y=\frac{1}{4} x -2[/tex]
Describe where you might see a ratio of 2:1 at an animal sanctuary.
Answer:
there are 2 swans to 1 monkey
Step-by-step explanation:
Pls help!
A farmer owns a total of 19 ducks and horses.
The ducks and horses have 64 legs altogether.
How many horses are there?
Answer:
6 ducks and 13 horses
Step-by-step explanation:
Let H and D be the numbers of Horses and Ducks, respectively.
We are told that:
H + D = 19
Our biology book confirms that:
1 horse = 4 legs, and
1 duck = 2 legs
[In most cases on Earth]
So we can say that:
4H + 2D = 64 legs
Rewrite
H + D = 19 as: H = 19 - D
and then substitute:
4H +2D = 64 legs
4(19-D) +2D = 64 legs
76 - 4D + 2D = 64 legs
-2D = - 12
D = 6 [We have 6 ducks]
Then:
H + D = 19
H + 6 = 19
H = 13 [There are 13 horses]
=============================
Check:
Do 6 ducks and 13 horses have a total of 64 legs?
6*2 + 4*13 = 64?
12 + 52 = 64?
YES
Cara bought a 3 pound block of clay, and then made 4 equally sized statues with it. How many ounces is one of Cara’s statues? (1 lb = 16 oz)
Answer:
each of the four blocks weighs 12 ounces
Step-by-step explanation:
3 lbs = 3(16) or 48 ounces
48/4 = 12
each of the four blocks weighs 12 ounces
Gabriel owns a small business selling used books. He knows that in the last week 89 customers paid cash, 20 customers used a debit card, and 30 customers used a credit card.
Based on these results, express the probability that the next customer will pay with a credit card as a decimal to the nearest hundredth.
Answer:
.22 chance next customer pays with credit card
Step-by-step explanation:
This is because there was in all 139 customers during that week, and 30/ 139 0.21582733812. This rounded to hundredth would be .22
what is:
2 = -8 + 2u
If possible please answer as soon as possible
What is the domain of the function graphed below?
Answer:
The domain is the set of x values for which the function resides in.
In this graph, it is unclear as to if the function goes on to infinity, but if it does, the answer is quite easily:
(-2, 4] and [7, ∞)
since the function starts on the left at -2 then continues to the right, with a pause, then indefinitely after.
a dress store is having a sale where all merch is 1/4 off a women buys 48$ of merch at the sale price. what would she have to pay at the regular price?
Answer:
$64
Step-by-step explanation:
1/4 means 25%
$48 means 75%
$48 divided by 3 equals 16
$48 plus 16 equals $64
HELPPPPPPPPPP pls answer questionnn <33
Answer: Option 2
The line starts at an x of -4, so the domain is from -4 to infinity since the arrow goes off the graph, meaning it keeps going. The line starts on a y of 2, and the line continues up with the arrow pointing slightly up, so the range is from 2 to infinity.
The domain is from left to right, and the range is down to up
Answer:
2. {x | x ≥ −4}; {y | y ≥ 2}
Step-by-step explanation:
Let's try to determine the domain first. Look at the x values. The function begins at -4, so our possible domain values also begin at -4, and the values continue positively after -4.
Therefore, our domain is: Domain: {x ≥ -4}.
Or, we could assign our domain using interval notation: [-4,infinity).
Our range, or y values, begin at 2 and continue positively after 2.
Therefore, our range is: Range: {y ≥ 2}.
Again, we could use interval notation to assign our range: [2,infinity)
Therefore, the answer would be
2. {x | x ≥ −4}; {y | y ≥ 2}
Look at the picture to help you better understand
Solve by the elimination method. Check your work.
Answer:
1: x = 19 y = 16 ; 2. x = 5 y = -4
Step-by-step explanation:
To check your work plug the numbers back into one of the equations and see if it's true.
For example:
10(19)-9(16)=46
46=46
1. I distributed 3 to all the numbers so that 9y and -9y would cancel then you add like terms.
2. I distributed -4 to all the numbers so that 4x and -4x would cancel. Then add all like terms.
Once you get x or y plug it back into one problem to get the other variable.
Hope this helps!
#1
10x-9y=46--(1)-2x+3y=10--(2)(2)×3
[tex]\\ \tt\hookrightarrow -6x+9y=30[/tex]--(3)
Subtracting eq(1) from (3)
[tex]\\ \tt\hookrightarrow -16x=-16[/tex]
[tex]\\ \tt\hookrightarrow x=1[/tex]
Put in eq(2)
[tex]\\ \tt\hookrightarrow -2+3y=10[/tex]
[tex]\\ \tt\hookrightarrow y=4[/tex]
#2
4x+3y=8--(1)x-2y=13--(2)(2) ×4
[tex]\\ \tt\hookrightarrow 4x-8y=52--(3[/tex]
Subtracting eq(1) from (3)
[tex]\\ \tt\hookrightarrow -11y=44[/tex]
[tex]\\ \tt\hookrightarrow y=-4[/tex]
Put in eq(2)
[tex]\\ \tt\hookrightarrow x+8=13[/tex]
[tex]\\ \tt\hookrightarrow x=5[/tex]
Use the initial term and the recursive formula to find an explicit formula for the sequence an. Write your answer in simplest form. an=-2 an = an-1 -13 an=
From the recursive rule
[tex]a_n = a_{n-1}-13[/tex]
it follows that
[tex]a_{n-1}=a_{n-2}-13 \implies a_n = a_{n-2} - 2\times13[/tex]
[tex]a_{n-2}=a_{n-3}-13 \implies a_n = a_{n-3} - 3\times13[/tex]
and so on. Notice how the subscript on a on the right side and the coefficient multiplied by 13 add up to n (n - 2 + 2 = n; n - 3 + 3 = n; and so on). If we continue the pattern, we'll end up with
[tex]a_n = a_1 + (n-1)\times13[/tex]
so that the explicit rule for the n-th term in the sequence is
[tex]a_n = -2 + 13(n-1) \implies a_n = \boxed{13n-15}[/tex]
Subtract 5x^2-8x-1 from
-(5x^2 -x - 8).
Answer:
-10x² - 7x + 7
Step-by-step explanation:
Subtract:
-5x² - 8x - 1 - (5x² - x - 8)-5x² - 5x² - 8x + x - 1 + 8-10x² - 7x + 7Remember: subtracting a negative number is adding that number
-Chetan K
Answer:
−
2
x
2
+
6
x
+
4
Explanation:
(
3
x
2
+
8
x
−
7
)
−
(
5
x
2
+
2
x
−
11
)
(
3
x
2
−
5
x
2
)
+
(
8
x
−
2
x
)
+
(
−
7
+
11
)
−
2
x
2
+
6
x
+
4
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Or if you prefer:
...
.
.
3
x
2
+
8
x
−
7
...
.
.
5
x
2
+
2
x
−
11
−−−−−−−−−−−−
←
Subtract
.
−
2
x
2
+
6
x
+
4
Step-by-step explanation:
have a good day
Discussion
1. In the voice of your selected historical figure, make a preliminary argument for
your position.
2. In the voice of your selected historical figure, respond to a point made by
another student.
3. In your own voice, briefly describe something you learned because you had to
imagine yourself in another person's position.
Role plays are a strategy to understand the points of view of other people according to their thinking or the context in which they live.
How to make an argument?An argument is a statement that is characterized by being very well supported by verifiable facts. When we want to defend our position, we must argue it through statements that validate our point of view.
According to the above, if we make a role play selecting to personify a historical character and defend his point of view on a specific topic, we must take into account:
Her/His thoughts and ideologies.Her/His context.These role plays are very important to learn more about the life of a historical figure or other person, because they make us aware of their way of thinking and how they have been influenced by different factors throughout their lives.
Learn more about point of view in: https://brainly.com/question/14834722
Answer:
1. The work place is a place for work, not for drinking and messing around. Please drink all you want on your own time or just accept the punishment.
2. I agree with ___ that alcohol is not tolerable and it isn't good for your work
3. I learned the owners sometimes have to make unpopular decisions for the good of their business and employees.
solve the linear system by graphing.
x - 4y = 28
2x + y = 2
The ordinates of the linear system is mathematically given as
C=(4,-6)
Linear systemQuestion Parameters:
The equations
x - 4y = 28
2x + y = 2
Generally the equation for the linear system is mathematically given as
x - 4y = 28
2x + y = 2
Resolving the equations
x=4 and y=-6
Therefore
co ordinates are
C=(4,-6)
For more information on Graph
https://brainly.com/question/14375099
HELPPP
i need answers asappppp
Answer:
The expressions are equivalent
Step-by-step explanation:
We can start by simplifying the first expression:
1.25x+4+0.75x-3
Move like terms so that they are together:
1.25x+0.75x+4-3
Now, combine like terms:
2x+1
The expressions are equivalent
Which value of x makes the equation x plus 3 equals 8 true?
Answer: x = 5
Step-by-step explanation:
Replace x with 5: 5+3=8
This is true!
The experimental probability of winning a game is 2/7. How many times can you expect to win the game if you play 56 times?
Question options:
7
56
16
8
Answer:
You would expect to win the game 16 times.
Step-by-step explanation:
I set up a proportion for this :
2/7 = x/56
2(56) = 7x (cross multiply)
112 = 7x (multiply 2 and 56)
x = 16 (divide 7 from both sides)
:)
The parent function, f(x) = 5^x, has been vertically compressed by a factor of one-half, shifted to the left three units and down two unlts.
Choose the correct function to represent the transformation.
Answer: Choice C
[tex]\displaystyle g(x) = \left(\frac{1}{2}\right)5^{x+3}-2[/tex]
=====================================================
Explanation:
The 1/2 out front handles the vertical compression by 1/2. For example, if two points are vertically spaced by 10 units, then their new vertical distance is now (1/2)*10 = 5 units.
The x+3 in the exponent means "shift 3 units to the left". Effectively what's going on is that the old input x is now x+3, ie 3 units larger than before. This shifts the xy axis itself 3 units to the right. If we held the curve fixed in place while the xy axis moved like this, then it gives the illusion the curve is moving 3 units to the left.
Then finally the -2 at the very end shifts the curve down 2 units. This is because whatever the y coordinate is, we subtract 2 from it to do this vertical shifting. For example, the point (0,62.5) shifts 2 units down to (0,60.5)
First answer gets brainliest. And one hundo points
Answer:
option C.
Step-by-step explanation:
option C is the correct answer.
Direct variation: y = kx .........where k is constant.
10 = k * -5
k = -2
Then check if all are linear and matches.
y = -2 * -4
y = 8 ...matches.
then
y = -2 * -3
y = 6 ........matches
then
y = -2 * -2
y = 4 ........matches
then
y = -2*-1
y = 2 ......matches as well. so direct variation.
i need help on this question
Answer:
The answer is B.
w + m > 224.
11w + 15m ≤ 2,876
Step-by-step explanation:
w + m > 224. There were more than (>) 224 who donated.
11w + 15m ≤ 2,876 No more than (≤) $2,876 was donated.
Hope that helps!
If she arrives home without her iClicker device and she is sure she has the iClicker device after leaving the first class, what is the probability (to at least 3 significant figures) that she left it in the 5th class
Answer:
its simple the answer 15
Step-by-step explanation:
multiply 3x5=15 boom
Question Progress
Homework Progress
7/27 Marks
跟
Here is a list of numbers.
17 21 14 17 12 15 16
a) Work out the range of the numbers in the list.
b) Work out the mean of the numbers in the list.
b)
mean
a)
range
Answer:
A) 9. B) 16
Step-by-step explanation:
Range is
12, 14, 15, 16, 17, 17, 21
so 21-12= 9
add all them up 12+14+15+16+17+17+21 = 112/7 = 16
What is a fraction that is equivalent to 2/5 and the numerator is 18 less than the denominator
Answer:
Let the denominator be x
x-18/x=2/5
5(x-18)=2x
5x-90=2x
3x=90
x=30
The fraction is 12/30
Hope it helps you!
Step-by-step explanation:
What is the value of x in the proportion? 4/11 = -3/x+5
A. X = 13 1/4
B. X = -9 1/2
C. X = -7
D. X = -3 1/4
PLEASE ANSWER
Answer:
All the provided answers are incorrect
Step-by-step explanation:
Cross multiply and get
4(x + 5) = (-3)*11
4x + 20 = -33
4x = -33 - 20 = -53
x = -53/4 = -13 1/4
It’s -13 1/4
Step-by-step explanation:
−21 = −0.6k this is for my math homework pls help
Step-by-step explanation:
-21=0.6k
divide both side by0.6=
-21\0.6=35
Hi!
I can help you with joy!
The first step in solving this equation is dividing both sides by -0.6:
-21:(-0.6)=-0.6k:(-0.6k)
35=k
k=35 (Answer)
_______________
Additional comment
* Whatever we do to one side, we do to the other.
** A negative number divided by a negative number is a positive.
______________
Hope it helps! Enjoy your day!
Ask me if you have any questions.
~Misty~
7)
The table shows the median home prices in the United States, from 2007 to 2009
Year
Median Home
Price ($)
234,300
2007
2008
213,200
2009
212,200
What is the domain and range for this data?
Answer:
The domain range for this data is
Answer:
22,100 for range
Step-by-step explanation:
To find range you subtract the lowest number from the highest number
Write a simplified polynomial expression in standard form to represent the area of the rectangle below: A picture of a rectangle is shown with one side labeled as 5 x plus 2 and another side labeled as x minus 4. 5x2 18x − 2 5x2 13x 2 5x2 − 18x − 8 5x2 13x 8.
Answer:
d
Step-by-step explanation:
d