Answers
Answer:
45
Step-by-step explanation:
81° + a° + 2a° = 180°
81° + 3a = 180°
3a = 180 - 81
3a = 99°
a = 99 ÷ 3
a = 33°
Therefore , a = 33° .
Related Questions
3 1/8 +4 3/8 solve the question
Answers
Answer:
7 1/2
Step-by-step explanation:
Let's add the whole numbers first, 3 + 4 = 7
Then, we add the fraction, and since the denominator is the same, there's no need for a change, so we just add the top. 1/8 + 3/8 is 4/8, which can be simplified to 1/2
so answer is 7 1/2
The Nature of Roots Of a Quadratic Equation help me with these pls
if you answer correctly i'll mark you as brainliest answer
Answers
Problem 1
Answers:
Real = sqrt(49), 5/6, 12.5, 8/12, 225, sqrt(24)/16, sqrt(32)
Not real = sqrt(-20) and sqrt(-16)/9
---------------
Explanation:
Anything involving a square root of a negative number will result in a non-real answer. Anything else is real.
Traditionally y = sqrt(x) has a domain of nonnegative numbers. If x >= 0, then y is some real number. If x < 0, then we'll need to use the imaginary number i = sqrt(-1).
==========================================
Problem 2
Answers:
Rational = sqrt(49), 5/8, 12.5, 8/12, and 225
Irrational = sqrt(24)/16, sqrt(32)
---------------
Explanation:
Ignore the non-real numbers. Focus solely on the real values.
A rational number is where we can write it as a ratio of two integers. An example is 5/8 since 5 and 8 are integers. The denominator can never be zero.
Decimal values that terminate can be written as a fraction. For instance, 12.5 = 125/10.
Square roots of perfect squares are also rational. For example sqrt(49) = 7 = 7/1
Something like sqrt(32) is not rational because we can't write it in the form p/q with p,q being integers. We say it is irrational.
==========================================
Problem 3
Answers:
Perfect Squares = 225
Non-perfect squares = everything else
---------------
Explanation:
A perfect square is of the form x^2, where x is a positive integer.
The only perfect square listed is 225 because 225 = 15^2. Here x = 15.
Note: a perfect square is an integer itself.
==========================================
Problem 4
As discussed earlier, rational numbers are fractions of integers. So we have something of the form p/q where p,q are integers and q is nonzero. An example of a rational number is p/q = 7/8 with p = 7 and q = 8.
Irrational numbers are ones that cannot be written as p/q. A famous example of an irrational number is pi = 3.14, but we could do something like sqrt(17) for instance as well. The stuff under the square root must be a non-perfect square.
Perfect squares are integers in the form x^2, with x being an integer also. A visual way to think of perfect squares is to think of a square with side length x, so its area is x^2. If x = 9, then its area is x^2 = 9^2 = 81, so 81 is a perfect square. We only consider whole number side lengths.
PLEASE HELP FIND FUNCTION FOR PIECEWISE! 60! POINTS! ILL GIVE BRAINLIEST
Answers
Answer:
try this website called math way
Step-by-step explanation:
it should help it answers questions if you take a picture too! :)
Drew had $48 in his savings account. Each week he added $8 to his account. Stacie had $87 in her account. Each week she took $5 out. After how many weeks will they have the same amount of money in their savings accounts?
What would be the equation to figure this out?
Answers
Answer:
after 3 weeks
Step-by-step explanation:
y=8x
y=-5x
y=8*3=24+48=72
y=-5*3=-15
87-15 is 72
after 3 weeks
It takes 3 weeks to be the amount of Drew and Stacie same in the bank account.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
Let's say it takes x week to be same the amount of Drew and Stacie.
Amount after x week of
Drew ⇒ 48 + 8x
Stacie ⇒ 87 - 5x
For to be it same,
48 + 8x = 87 - 5x
8x + 5x = 87 - 48
13x = 39
x = 3
Hence " It takes 3 weeks to be the amount of Drew and Stacie same in the bank account".
For more about the equation,
https://brainly.com/question/10413253
#SPJ2
A parking lot has 88 parking spaces. Of those, 4 are reserved for disability parking, 48 are for full-size cars, and the remaining spaces are for compact cars. What is the ratio of compact spaces to full-size spaces?
Answers
The expression sqrt 200 is equivalent to
A: 25 sqrt 8
B: 100 sqrt 2
C: 2 sqrt 10
D: 10 sqrt 2
Answers
Answer D
Answer: D
Step-by-step explanation: just took it
Help I am dying from this brain damage, give me detailed answer as well
Answers
Answer:
Step-by-step explanation:
speed of train=distance/time=243/4=60.75 miles per hour
speed of car=65 miles per hour.
car is moving faster than train.
15 points to help me graph this problem ( slope problem )
Answers
Answer:
When u said slope problom i thought u ment about the game LOL
Step-by-step explanation:
what is the base area of a pyramid with a volume of 72m^3 and a height of 12m solve for the base area
Answers
1. What is the area of the shape?
6cm
4cm
2cm
3cm
Answers
I’m not sure how to answer your question because looks like you forgot to put an image of the shape your talking about.
The circumference of the Earth is approximately 40,000 km. If you made a circle of wire around the globe, that is only 10 meters (0.01 km) longer than the circumference of the globe, select ALL the creatures that could creep under the wire.
Group of answer choices
a. a flea
b. a mouse
c. a person
d. none of the above
Answers
The following amount of food in a recipe makes 50 portions, how much will you need in order to
make 150 portions?
18 lb. lamb shoulder
O 6 lb.
o 54 lb.
O 45 lb.
O 9 lb.
Answers
Answer:
54
Step-by-step explanation:
150/ 50 = 3
18 x 3 = 54
7/4 as a whole number
Answers
Answer:
[tex] \frac{7}{4} is \: not \: a \:w hole \: number \: \\ it \: is \: a \: mixed \: number \: \\ we \: can \: simplify \: it \: in \: to \: 2 \frac{1}{4} \\ thank \: you[/tex]
What is the answer to the question
1.5(q-4)-2=4
Thank you so much for answering!
Answers
Answer:
q= 8
Step-by-step explanation:
1.5q-6-2=4
1.5q-8=4
1.5q=4+8
1.5q+4+8= 12
divide both sides
1.5q=12=8
In a class full of men and women,2/9
of the class are women. What is the ratio of men to
women in its simplest form?
Answers
Answer:
the ratio of men to women is 7 to 2
Step-by-step explanation:
you have 9 people 7 are men and 2 are women
Answer: this is kinda already the simplest form unless you want to do 1/4.5
Step-by-step explanation:
Can someone please answer this question for me??? I don’t understand!
Answers
Answer:
Beat#s 6 and 7
Step-by-step explanation:
at beat# 6 its 444.0 at beat# 7 its 392.0.
John is running in a 1 km race. If he finishes the race in 350s what was his speed in m/s
Answers
Answer:
187
Step-by-step explanation:
Find the measure of ZM
Answers
the answer is
In AKLM, the measure of ZM=90°
helppp!!
Identify the slope of the following equation:
-4x + 3y = 3
Answers
Answer:
the answer is -4
Step-by-step explanation:
Answer:
Step-by-step explanation:
-4x+3y=3
-4x/3=3-3y/3
x=1.5
Therefore the slope in 1.5
If 6x + 4 = 11x - 21, what is the value of x?
Answers
Answer:
x = 5
Step-by-step explanation:
11x - 6x = 4 + 21
5x = 25 (÷5)
x = 5
Explanation: 6x + 4 = 11x - 21
1). Subtract 4 from both sides and you will get 6x = 11x -25.
2). Subtract 11x from both sides and you should get -5x = -25.
3). Divide the -5 with -25 to get x alone and you should get X=5!
Check your work:
6(5) + 4 = 34 & 11(5) - 21 = 34
34=34.
What is the probability of flipping at least 1 tail? As a fraction
Answers
Answer:50%
Step-by-step explanation:2 sides =100%/2=50
Which is the closest to 6.5x10-47
A. 0.065
B. 0.0065
C. 0.00065
D. 0.000065
E. 0.0000065
Answers
Answer:
Step-by-step explanation:
B
is 128 is a perfect cube
Answers
Because 128=27
I NEED HELP PLEASE HELP
Answers
please help I will give brainiest 10 points
Answers
Answer:
7. it's a or c
8. no solution
9. no solution
In Akutan, Alaska, men are 77% of the population. It is also known 11.3% of
Akutan males smoke cigars while 2.1% of Akutan females smoke cigars. One
member of the population is selected at random for a survey involving cell
phone carriers.
Find the probability that the selected subject is not male.
Answers
Answer: 0.23
Step-by-step explanation:
Given that:
Percentage population of males = 77% = 0.77
Hence,
Percentage that aren't male = ( 1 - 0.77) = 0.23
P(males) = 0.77
Hence,
P(non-males) = 1 - 0.77 = 0.23
(-2) + 3 = ?
Your answer
Answers
Answer:
(-2)+3=1
negative two plus three =one
Can you help me please!
Graph the Solution set for 3x<-15
Answers
3 and simplify.
Inequality Form:
x < − 5
Interval Notation:
( − ∞, − 5 )
Answer:
Your answer is: If you solved this inequality you would have to solve the Inequality for x. So your answer would be x < -5, but your graph for that is below ↓
Step-by-step explanation:
Hope this helped : )
Which expression is equivalent to ac + bd? *
ac x bd
ca + db
ab + cd
(ac)^2
Answers
Answer:
the aswer is ca+ db
Step-by-step explanation:
Hope this helps leave a heart c:
Answer:
ab+cd
Step-by-step explanation:
Evaluate the expression:
3(a + b - 3) - 212a + b - 4) when a = 2 and b = 1
Answers
Answer:
417
Step-by-step explanation:
3(2+1-3)-212*2+1-4=?
3-212*2+1-4=?
3-423+1-4=?
420+1-4=?
421-4=?
417