Answers
Step-by-step explanation:
it is given r=s
then, t =100.
2s+t=180°
2s=180-100
2s=80°
s=40° = r
hope this helps you.
Related Questions
please help fast ^^
Using the discriminant, determine the number of real solutions,
-2x^2+x-28= 0
Ono real solutions
O one real solution
O two real solutions
Answers
b^2-4ac
1^2 - 4 * -2 * -28 = 1 - 224 = -223
When the discriminant (b^2-4ac) is less than 0, the equation had no real solutions.
-223<0, so, 2x^2+x-28 = 0 has no real solutions.
Hope that helps :)
The number of real solutions is 0, the correct answer is A.
How to use discriminant to find the property of solutions of given quadratic equation?Let the quadratic equation given be of the form ax^2 + bx + c = 0, then
The quantity b^2 - 4ac is called its discriminant.
The solution contains the term [tex]\sqrt{b^2 - 4ac}[/tex] which will be:
Real and distinct if the discriminant is positive
Real and equal if the discriminant is 0
Non-real and distinct roots if the discriminant is negative
There are two roots of a quadratic equations always(assuming existence of complex numbers). We say that the considered quadratic equation has 2 solution if roots are distinct, and have 1 solutions when both roots are same.
We are given that;
The equation -2x^2+x-28= 0
Now,
The discriminant of a quadratic equation ax^2 + bx + c = 0 is given by b^2 - 4ac. The discriminant can be used to determine the number of real solutions of the equation as follows:
If the discriminant is positive, there are two distinct real solutions.
If the discriminant is zero, there is one repeated real solution.
If the discriminant is negative, there are no real solutions.
In this case, the quadratic equation is -2x^2 + x - 28 = 0. Comparing it with the standard form, we can identify that a = -2, b = 1, and c = -28. Therefore, the discriminant is:
b^2 - 4ac
= 1^2 - 4(-2)(-28)
= 1 - 224
= -223
Since, the discriminant is negative, there are no real solutions for this equation.
Learn more about discriminant of a quadratic equation here:
https://brainly.com/question/18659539
#SPJ7
The values for three different sets of data are shown below.
Data
Data Set
Values
1
52, 55, 59, 53, 50
2
40, 49, 43, 42, 90, 38
3
24, 30, 26, 31, 40, 26
Without calculating any statistics, Jadyn knows that data set 1 would have the least mean absolute deviation among the three sets. Which statement explains how she knows?
Sets 2 and 3 have an even number of values.
Set 1 has the least number of values.
Sets 2 and 3 contain outliers.
Set 1 contains an outlier.
Answers
Answer:
data set 3 would have the least mean absolute deviation among the three sets since there is less spread of the data and the data values in set-3 lie close to the mean.
Step-by-step explanation:
The mean absolute deviation is a measure of spread of the data.
If the data values in the given data set are widely spread then we obtain a higher mean absolute deviation.
if the data values of a given data set are close to each other i.e there is a less spread of the data and hence the mean absolute deviation will be low as the data values will lie close to the mean.
We are given three data set as:
set- 1 42, 48, 50, 88, 49
set- 2 63, 29, 35, 28, 30
set- 3 2, 5, 3, 8
Hence, we could observe that the data values in set 1 and set 2 are widely spread.
In set-1 the data value 88 is much higher value as compared to other data values.
Similarly in set-2 the data value 63 is again a much higher value as compared to other data values.
Whereas in set-3 the data values are all closely related and there is not much spread in the data.
Answer:
It is c
Step-by-step explanation:
Please help!!!!!
answer options
a) slope of Function B =2 x slope of Function A
b) slope of Function A = slope of Function B
c) slope of Function A =2 x slope of Function B
d) slope of Function B = - slope of Function A
Answers
how to use solution of an inequality in the real world?
Answers
They seek to describe the way nature flows. Many of the simpler equations also describe financial concepts, like exponential growth. Exponential growth can describe the cultivation of microorganisms as well.
Addition and substraction is used in shopping.
Much of mathematics are also used in programming in order to make smart software.
You basically used equations everyday without even notice. Like when you have to calculate “How many dollars does the sum of your grocery stuffs equal to?”. Or a more complicated situation, if you need to be in the meeting at 9:30am, the travel distance is 10km and you can only leave after 8:30am, your driving speed should equal “x” km/h.”
Inequalities are used for comparison. “He is taller than me.” or “The iPhone with larger memory capacity is more expensive.”. A more complicated example is also with calculating your driving speed. “Now if there is expected traffic jam for 2km. You get out of the traffic jam at 9:00am, you have to drive faster than
“x” km/h to compensate for your loss time.”
Just some simple examples. There are a lots more out there, just look around.
Answer:
by using injustices or by subtracting
I am a 4 digit number.My hundred's digit is 4 less than my thousands digit.My unit's digit is 7 less than my ten's digit.My ten's digit is 3 more than my hundred's digit.My thousand's digit is the largest single digit number.what number am i?
Answers
Answer:
9581
Step-by-step explanation:
What’s the domain and range of f(x) = 72 - 1/6x?
Answers
Answer:
Step-by-step explanation:
The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. A rational function is a function of the form f(x)=p(x)q(x) , where p(x) and q(x) are polynomials and q(x)≠0 .
A human hair is approximately 40 microns (um) wide. If 1 um is equal to 10
-6
meters (m),
and 1 nanometer (nm) is equal to 10-9m, then how many nanometers wide is a human hair?
A
0.0004 nm
B
0.004 nm
C
4,000 nm
D
40,000 nm
Answers
Answer:
D 40,000nm
Step-by-step explanation: 1nm/10^-9m * 10^-6/1um = 10^3 nm/um
Therefore in 40 microns there are:
40um * 10^3 nm/um = 40 * 10^3 nm = 40,000 nm
The human hair is 40,000 nanometers wide.
Option D is the correct answer.
Given,
A human hair is approximately 40 microns (um) wide.
1 um is equal to [tex]10^{-6}[/tex] meters (m)
1 nanometer (nm) is equal to [tex]10^{-9}[/tex] m.
We need to find how many nanometers wide is human hair.
How do we add exponents?We can add the exponents if we have the same base.
Example:
a² x a³ = [tex]a^{(2+3)}[/tex] = [tex]a^{5}[/tex]
[tex]a^{-2}[/tex] x [tex]a^{-3}[/tex] = [tex]a^{(-2 +( -3))}[/tex] = [tex]a^{-5}[/tex]
We have,
Human hair = 40 microns (um) wide.
And,
1 um = [tex]10^{-6}[/tex] m
1 nm = [tex]10^{-9}[/tex] m
[tex]10^{-9}[/tex] m = 1 nm
Multiplying by 10³ on both sides.
[tex]10^{-9}[/tex] x 10³ = 10³ nm
[tex]10^{(-9+3)}[/tex] = 10³ nm
[tex]10^{-6}[/tex] m = 10³ nm
1 um = [tex]10^{-6}[/tex]m
1 um = 10³ nm
Human hair = 40 um
1 um = 10³ nm
Multiplying 40 on both sides.
40 x 1 um = 40 x 10³ nm
40 um = 40 x 1000 nm
40 um = 40,000 nm
Thus human hair is 40,000 nanometers wide.
Learn more about the conversion of microns to nanometers here:
https://brainly.com/question/14663277
#SPJ2
A little help? A set of numbers is given below. √72, 9.25, √83, 2, 8.7 Which list correctly orders the numbers from least to greatest?
Answers
Answer:
9.25, 83^1/2, 8.7, 72^1/2, 2 From greatest to least
2, 72^1/2, 8.7, 83^1/2, 9.25 from least to greatest
Step-by-step explanation:
Let f(x) = x − 3 and g(x) = x + 11. Find f(x) ⋅ g(x).
x2 − 8x − 33
x2 − 8x + 14
x2 + 8x + 14
x2 + 8x − 33
Answers
(x-3)(x+11)
x^2 + 11x - 3x - 33
x^2 + 8x - 33
Solution: D
Answer:
D) x^2 + 8x - 33
Step-by-step explanation:
I took the quiz and got a 100%
PLEASE HELP. WILL GIVE A BRAINLY. What is the range of the function?
Answers
Answer:
c is the correct option.
Step-by-step explanation:
The graph curves at y = -2 and above thus for the range of the graph is c.
1. Determine the lowest common multiple of 4, 9 and 12
A. 30
B. 36
C. 48
D. 54
2. Simplify 80g : 16kg
A. 4 : 5
B. 3 : 4
C. 2 : 7
D. 1 : 20
3. How many square-shaped tiles with sides of y cm that are required to cover 15y × 4y floor?
A. 60
B. 64
C. 72
D. 86
4. Puan Anis bought 8kg of beef which cost RMx per kilogram. She paid with 2 pieces of RM50 note and received a balance of RM4. Find the value of x
A. 12
B. 14
C. 16
D. 18
5. Find the circumference of a circle with radius of 21 cm
A. 66
B. 44
C. 63
D. 132
6. Anita has RMb. She spent RM(2a + 1) per day for a week. Given the balance of her money is RM45, find a formula for b
A. 2a + 46
B. 14a - 38
C. 14a + 45
D. 14a + 52
7. Given 9x²/y² - 3x = 5w, express y in terms of w and x
A. y = x/5w+x
B. y = 3x/5w+3x
C. y = 3x²/5w+3x
D. y = 3x/5w+x
I NEED ANSWERS FOR THESE QUESTIONS TQ :)
Answers
Answer:
1)36
2)1g:200g
3)60
4)12
5)132
6)a
7)?sorry
Answer:
tha answer is number 1.c 2.d3a4.c5.d6.a7.cStep-by-step explanation:
yan po answer ko
Simplify (Remember to simplify means to write an equivalent expression that uses each variable on')
not have zero or negative exponents.
Answers
Answer:
A) [tex]x^{3} y^{4}[/tex]
B) [tex]-\frac{5x^{2} }{y}[/tex]
C) [tex]9m^{4}n^{4}[/tex]
D)[tex]\frac{1}{x^{3} }[/tex]
Step-by-step explanation:
Hope this helps.
hi can you please help me
i cant answer this question.
Answers
Answer:
take a actual picture maby
6) Candace Parker bought some new furniture for her house. Tax was included in the price
of the furniture. She bought a chair for 213 dollars, a couch for $812.50, and a television
for $499.99. If she left a 15% tip on the final price of all the furniture how much would
she have paid in total for the furniture and the tip?
ning Carmelo Anthony
Answers
Answer:
$1,754,31
Step-by-step explanation:
Furniture = $213 + $812.50 + $499.99 = $1,525.49
15% * $1,525.49 = $228.82
Total = $1,525.49 + $228.82 = $1,754,31
Candace should have gone to Wayfair
HELP
In order to isolate the variable term in the equation 6 -2x = -3 using the subtraction property of equality, which number
should be subtracted from both sides of the equation?
-3
3
6
-2
Answers
6.) Danasia has two summer jobs. During the week she works in the grocery store and on the
weekend she works at a nursery. She gets paid $15 per hour to work at the grocery store and
$18 per hour to work at the nursery. The one week she made $630. Write an equation to
model the situation.
Answers
Answer: 630 = 15x + 18y
Step-by-step explanation:
The pictures is where my question is someone please answer it.
Answers
Answer:
functions: first one, third one, fifth one, seventh one, eigth one
the rest are not function
Step-by-step explanation:
if it is a function it either passes the line test or it doesnt have two outputs
please help me i dont know what i am doing
Answers
Answer:
answer is 1.2590Step-by-step explanation:i hope its help you
anong meaning nang pangnakaraan, pangkasalukuyan panghinaharap
Answers
★ « pangnakaraan » ★
mga oras na nangyari na o mga bagay na natapos na★ « pangkasalukuyan » ★
mga bagay na nangyayari★ « panghinaharap » ★
mga oras na mangyayari palamanghope it helps
Which is an expression that represents the horizontal side length of the triangle? Give the points(x,y) and (5,7) Lie on the line
Answers
Answer:
x - 5
Step-by-step explanation:
The x-coordinate of the left endpoint is 5.
The x-coordinate of the right endpoint is x.
length = x - 5
What theorem can be used to prove
these triangles are congruent?
ASA
SAA
neither
Answers
PLEASE HELP ME
A population in a town has 2500 people in the first month of its development. Every month after that, the population constantly increases 1.25 times from the previous month. What will the population of the town be in the 4th month?
A.) About 4883 people
B.) About 6104 people
C.) 12500 people
D.) 9375 people
Answers
Answer:
C.
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Just take the 1.25 x 4 months, then multiply that by the 2500 to get your answer of 12,500 people.
Consider U = { 5,10, 15, 20, 25, 30, 35, 40} , A = { 20, 30, 40 } . Find A’
Answers
Answer:
A {5, 10, 15, 20}
Step-by-step explanation:
Is the list of numbers an arithmetic sequence?
22,25,27,30,33,…
Answers
Answer:
No
Step-by-step explanation:
The jump from each of the numbers is 3 but from 25 to 27 is 2 therefore it is not an arithmetic sequence.
Find the measures of the interior angles.
Answers
The three inside angles of a triangle when added together need to equal 180 degrees.
To find x subtract the other two angles from 180:
X = 180 - 65 - 40
X = 75
I need help with this question. 20 points ton the person who can answer the question and make it make sense.
Why do we want the two measured angles to be equal. Why is this important?
Answers
Answer:
Because if they werent the messerue ments would be screwed and u would not be able to answer some questions
Step-by-step explanation:
also it makes a right triangle if equal
What is the value of x
Answers
Answer:
9
Step-by-step explanation:don't use this awnser its wrong
PLEASE HELP! ASAP I NEED HELP!
Answers
a) 314.285728572857.......
b) i think 5.4 boxes
c) its an under estimate cuz actual value is more than 5
Step-by-step explanation:
a) To find the area of her garden, you need to know the area of a circle: πr²
diameter = 20m
radius = 10m
3.14 × 10² = 314m²
b) If 1 box covers 58m², then we need to work out how many 58m² can fit into her garden, but because its an estimate we round the numbers to 1 significant figure
314 ÷ 58 ≈ 300 ÷ 60 = 5
c) The answer is an underestimate because the actual value is 5.4137...
314 ÷ 58 = 5.4137..
HELP ME PLEASE!
State the domain and range of the relation. (2 points) Then, determine if the relation is a function and state the reason why or why not. (2 points)
y= 2x - 3
Answers
Range is (-♾, ♾)
Nate is baking cookies for a bake sale. He needs 2 1/4 cups of flour for each batch of cookies, and he needs to make 3 1/3 batches. How much flour does Nate need to make his cookies? 5 7/12 cups 6 1/12cups 6 7/12 7 1/2cups
Answers
Answer:
correct the answer is 7[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
The required cups of floor needed to make his cookies is 7 1/2 cups. Option D is correct.
Given that,
Nate is baking cookies for a bake sale. He needs 2 1/4 cups of flour for each batch of cookies, and he needs to make 3 1/3 batches, how much flour does Nate need to make his cookies is to be determined.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Amount of floor for each batch of cookie = 2 1/4
Total floor required to bake 3 1/3 batches = 9 / 4 × 10 / 3 = 7 1 / 2
Thus, the required cups of floor needed to make his cookies is 7 1/2 cups. Option D is correct.
Learn more about simplification here: https://brainly.com/question/12501526
#SPJ5
