Answer:
$6.56
Step-by-step explanation:
First, take 8 and divide it by 100. Then you have 0.08. multiply that by 9. You get 0.72, that is how much the price increases every year. multiply that by 2, and you get 1.44. subtract 1.44 from 8, and you are left with $6.56, the price it was two years ago.
The Nature of Roots Of a Quadratic Equation help me with these pls
if you answer correctly i'll mark you as brainliest answer
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.
Help I am dying from this brain damage, give me detailed answer as well
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.
please help with 6 through 11
Answer:
6. 32
7. 62
8. 512
9. 675
10. 13
11. ⅔
Colleen divided integer a by −2 and got 8. Then she divided 8 by integer b and got −4. Find the quotient of integer a and integer b.
/ = division
a/b =
9514 1404 393
Answer:
8
Step-by-step explanation:
The first division was ...
a/-2 = 8
Multiplying by -2, we have ...
a = (-2)(8) = -16
__
The second division was ...
8/b = -4
Multiplying by b/-4, we have ...
8/-4 = b = -2
__
Then the quotient of interest is ...
a/b = (-16)/(-2)
a/b = 8
Which expression is equivalent to ac + bd? *
ac x bd
ca + db
ab + cd
(ac)^2
Answer:
the aswer is ca+ db
Step-by-step explanation:
Hope this helps leave a heart c:
Answer:
ab+cd
Step-by-step explanation:
Can you help me please!
Graph the Solution set for 3x<-15
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 : )
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?
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
If 6x + 4 = 11x - 21, what is the value of x?
Answer:
x = 5
Step-by-step explanation:
11x - 6x = 4 + 21
5x = 25 (÷5)
x = 5
Evaluate the expression:
3(a + b - 3) - 212a + b - 4) when a = 2 and b = 1
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
PLEASE HELP FIND FUNCTION FOR PIECEWISE! 60! POINTS! ILL GIVE BRAINLIEST
Answer:
try this website called math way
Step-by-step explanation:
it should help it answers questions if you take a picture too! :)
3. What is the slope and y-intercept of the linear equation y = -7x + 5 ? (2 points)
slope = 1/7
y-intercept = (5,0)
slope = 7
y-intercept = (5,0)
slope = -1/7
y-intercept = (0,5)
slope = -7
y-intercept = (0,5)
Answer:
slope = - 7, y- intercept = (0, 5 )
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 7x + 5 ← is in slope- intercept form
with slope m = - 7 and y- intercept c = 5 ⇒ (0, 5 )
Ollie has $145 in her savings account. She wants to save an additional $35 per week until she reaches $500. Identify the rate of change.
Answer: $75
Step-by-step explanation:
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.
Answer:
54
Step-by-step explanation:
150/ 50 = 3
18 x 3 = 54
5t-18x4=-36 please someone help!!!!
Step-by-step explanation:
5t -(18x4)=-36
5t-72=-36
5t=-36+72
5t=36
t=36/5
(-2) + 3 = ?
Your answer
Answer:
(-2)+3=1
negative two plus three =one
Which is the closest to 6.5x10-47
A. 0.065
B. 0.0065
C. 0.00065
D. 0.000065
E. 0.0000065
Answer:
Step-by-step explanation:
B
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
Please help me!!!! Due in 1 hour, whoever helps me will get a brainliest!
Answer:
1.) The ratio of peaches to oranges 5 : 4
2.) 3 : 12
3.) I have 8 fruits in total, but 2 blueberries. The ratio using numbers would be: 8 : 4
4.)
- 11 : 14
- 14 : 25
- 25 : 11
- 14 : 11
5.) a. False
b. True
c. False
d. True
e. True
Alice is correct. The ratio is 6 : 9 because the question asks what the ratio is of students playing volleyball (6) TO basketball (9).
Hope this helped and I answered on time :)
Step-by-step explanation:
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?
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:
John is running in a 1 km race. If he finishes the race in 350s what was his speed in m/s
Answer:
187
Step-by-step explanation:
Can someone please answer this question for me??? I don’t understand!
Answer:
Beat#s 6 and 7
Step-by-step explanation:
at beat# 6 its 444.0 at beat# 7 its 392.0.
1. What is the area of the shape?
6cm
4cm
2cm
3cm
15 points to help me graph this problem ( slope problem )
Answer:
When u said slope problom i thought u ment about the game LOL
Step-by-step explanation:
I NEED HELP PLEASE HELP
please help I will give brainiest 10 points
Answer:
7. it's a or c
8. no solution
9. no solution
Write an equation of the line with a slope of -3/4 and y-intercept of -6
Answer:
Hi there!
Your answer is:
y= -3/4x -6
Step-by-step explanation:
The y int is the constant.
The slope is the coefficient of the X
Hope this helps!
The equation of the line with a slope of -3/4 and y-intercept of -6 is; 4y + 3x = -24.
The slope-intercept form of the equation of a straight line usually takes the form;
y = Mx + cwhere; m = slope and c = y-intercept
Therefore; the equation of the required line is;
y = (-3/4)x + (-6)4y = -3x - 244y + 3x = -24Read more;
https://brainly.com/question/1884491
Find the measure of ZM
the answer is
In AKLM, the measure of ZM=90°
What is the probability of flipping at least 1 tail? As a fraction
Answer:50%
Step-by-step explanation:2 sides =100%/2=50
What is the answer to the question
1.5(q-4)-2=4
Thank you so much for answering!
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
solve: |2x - 1| - 2 = 7
Answer:
x =5
Step-by-step explanation:
transfer -2 to the other side it turns to +2
|2x-1|=7 +2
2x-1 =9
transfer -1 to the other side it turns to +1
2x=10
Divide both sides by 2
2x /2 = 10/2
x= 5