5. Explain how you would classify if a square root is rational or irrational.
Answer:
if its not a perfect square(like u can't square it) then its irrational
(6 , -10 ) , ( -15, 15)
Answer:
1st. 3 2nd.2
Step-by-step explanation:
Hope this helped and was correct
After buying a pair of sneakers, Ben has $12 left which is 20% of what he started with. How much money did Ben have before he bought his pair of sneakers?
Answer: $60
Step-by-step explanation:
Given that:
Amount left after purchasing sneakers = $12
$12 is equivalent to 20% of the initial starting amount
Let starting amount = x
20% of x = $12
0.2x = $12
Divide through by 0.2
0.2x / 0.2 = $12 / 0.2
x = $60
Hence, starting amount before buying sneakers is $60
i need to know 7 divided by 4/5 =
Answer:
8.75 or 8 3/4
Step-by-step explanation:7
The numbers in 7 divided by 4/5 are labeled below:
7 = whole number
4 = numerator
5 = denominator
To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:
7 x 5
4
=
35
4
Thus, the answer to 7 divided by 4/5 in fraction form is:
35
4
To make the answer to 7 divided by 4/5 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:
35 / 4 = 8.75
The answer is rounded to the nearest two decimal points if necessary.
35/4 is an improper fraction and should be written as 8 3/4.
what is a domain in math?
Answer:
"In mathematics, the domain or set of departure of a function is the set into which all of the input of the function is constrained to fall."
Step-by-step explanation:
At a concert 1,600 in tickets were sold. Adult tickets were $9 each and children’s tickets were $4 each. If the number of adult tickets was 30 less than twice the number of childrens tickets, how many of each kind were sold
Answer:
140 TICKETS
Step-by-step explanation:
Read each question and answer accordingly
Write a linear equation in slope-intercept form with the following information*
Passes through (-2,-11) and is perpendicular to y=--x+2.
4
Answer:
653
Step-by-step explanation:
All the following are equivalent to 2(2a + b ) +8, except ______.
4a + 2b + 8
2(2a+b+4)
4(a+b+2)
4a+2(b+4)
Answer:
Except 4(a+b+2)
Step-by-step explanation:
It's 4a+4b+8 when expand
Find the product of -9 and -3.
27
-27
3
-3
I NEED THIS ASAP!!!
Answer:
negative number times negative number gives you positive number.
Step-by-step explanation:
-9x-3
=27
Julie suggests that they package together with the fries and soda in a combo for a $0.75 discount.
If the student council spent $0.85 per french fry and $1.20 per soda, then how much money will they make if they sell 45 combos?
Answer:
PLZ MARK BRAINLIEST!
The answer is $92.25
Step-by-step explanation:
0.85+1.20=$2.05
2.05 times 45= $92.25
Answer:
Hey, want to do a zoom today? I can do one in about an hour
Step-by-step explanation:
Which graph is the solution of the following systems
HELP ON ON GRADPOINT
Write the equation from the graph in slope intercept form
Answer:
y=2/3x−4
Step-by-step explanation:
Answer: [tex]y=\frac{2}{3}-4[/tex]
Step-by-step explanation:
Slope[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\\=\frac{-4-0}{0-6}\\=\frac{-4}{-6}\\=\frac{4}{6}\\=\frac{2}{3}[/tex]
Since the line hits the y-intercept at -4 the answer is
[tex]y=\frac{2}{3}-4[/tex]
la siguinete tabla mustran la correspondencia entre dos variables. Determina si es funcion o relacion
Answer:
where's the table. on és la taula?
Step-by-step explanation:
write the equation of a line that is perpendicular to the line y=-3/7-15 and that passes through the point (9,2)
Answer:
Step-by-step explanation:
First substitue the coordinates to the equation so
x=9, y=2
you would get
2=-3/7(9) + b
we put b because we are trying to find the new slope
multiply the two numbers above
2=-3/6/7 + b
subtract the whole number from both sides
b= 5/6/7
in equation would be
y= -3/7 + 5/6/7
Let me know if there is an error.
Peter's teacher says he may have his report card percentage based on either the mean or the median and he can
drop one test score if he chooses.
84%, 71%, 64%, 90%, 75%, 44%, 98%
Which measure of center should Peter choose so he can have the highest percentage possible?
O Peter should choose the mean after dropping one test score.
Peter should choose the mean without dropping one test score.
O Peter should choose the median after dropping one test score.
O Peter should choose the median without dropping one test score.
t would be best if Peter's report card percentage was based on the mean and if he could drop a percent, he should drop the 44%.
Step-by-step explanation:
The median (without dropping a score) of this set would be 75%
( 44%, 64%, 71%, 75%, 84%, 90%, 98% )
The mean (without dropping a score) of this set would be 75.1428571%
526 ÷ 7 = 75.14 ( 75.1428571 )
Answer:
A. Peter should choose the mean after dropping one test score.
Step-by-step explanation:
All of the following are equivalent EXCEPT x < 2 x - 2 < 4 2x < -4 x - 2 < -4
Answer:
solution
x<2,2x<-4,x-2<-4 are equvalent
but x-2<4 is not
plez help meeee wit this plez
The slope is [tex]\frac{dy}{dx}[/tex] which means it's 100/40 which is 2.5 or 5/2
[tex]d[/tex] has a full time job in defining difference :D
So basically the slope is defined as the difference in the [tex]y[/tex] over the difference in the [tex]x[/tex]
Answer:
5/2
Step-by-step explanation:
To find slope, we can see how much to rise and run from one point to another. In this example, the slope would be 5/2 because you rise 5 and run 2 to get to a different point.
Hope this helps! Have a nice day ^^
how do I solve 9x-4= -44
I'm not sure how you find the slope for this! I need it quickly!!
The surface area in square units of a cylinder with a volume of 18 cubic units is a function of its radius in units where . What is the surface area of a cylinder with a volume of 18 cubic units and a radius of 3 units
Answer:
the height is 0.6367 so the surface area is 68.55
Surface area is the total area of an object's outer facing surfaces. The total surface area is calculated by adding all the areas on the surface: the areas of the object's base, top, and lateral surfaces (sides).
How to Find surface area of cylinder?You can use r2 to replace B (area of the base), which is a type of prism with a circular base, and 2r to replace p. (perimeter of the base). The surface area of a cylinder is calculated as SA=2r2+2rh.
Therefore,
The cylinder's surface area is 264 cm2 (approximately)
3 unit is the cylinder's radius.
The cylinder's height is 18 units
To locate:
Area of contact
Having said that,
Cylinder surface area = 2r(h + r)
replacing the necessary values,
Surface area is equal to
2 x 22 /7 x 3 × 3( Plus 4)
Surface area equals 264/7 (7)
Surface area equals 1848/7
264 cm2 is the surface area.
The cylinder's surface area is 264 cm2 (about).
To learn more about surface area, refer to:
https://brainly.com/question/27440983
#SPJ2
In the complex plane, the rectangular coordinates (x, y) represent a complex number. Which statement explains why polar coordinates (r, θ) represent the same complex number?
Answer: second option (counting from the top)
Step-by-step explanation:
When we have a number:
z = x + y*i
we can represent this with the point:
(x, y).
Now, remember that in polar coordinates, we need to use the variables:
r = distance to the (0, 0), or the "magnitude" of the point.
θ = angle measured counterclockwise from the x-axis.
r is easy to find, is the magnitude, this is calculated as:
r = √(x^2 + y^2)
To find θ, suppose that we have a triangle rectangle, where x is the adjacent cathetus, and y is the opposite cathetus, and θ is the angle as we described it.
We know that:
Tan(θ) = opposite cathetus/adjacent cathetus = y/x
Tan(θ) = y/x
Then:
θ = Tan^-1 (y/x)
Then the correct option is the second option (counting from the top)
Answer:
its b
Step-by-step explanation:
trust
4. Use the following expression to answer the questions: t ^ 2 - 3t + 4 . How many terms are in this expression? What variable is used in this expression? What is the constant term in this expression?
Answer:
3 terms
t is the variable
4 is the constant
Is this relation a function? Explain.
Answer:
No
Step-by-step explanation:
In a function there can only be one x for each y.
Explain how adding -3/10 + 4/10 is like adding -3 + 4
Answer:
is the same because when you add the fraction -3/10 + 4/10 you gonna have to add -3 +4 because since their denominator is the same (10) we don´t have to solve anything.
Step-by-step explanation:
don´t forget to brainllest!:)
find the slope given the points (2,-7) and (-1,6)
A. 2/3
B. -13/3
C. 0
D. 13/3
You bought 15 apples and 2 bags of Carmel for $16.00. The bags of caramel costs $5.35. How much does each apple cost? Write an equation.
Answer:
5.35*2+x=16 and the answer is $.35
Step-by-step explanation:
5.35*2+x=16
10.70+x=16
-10.70 -10.70
x=5.30
5.30/15= about .35
Answer
$12.65/15
Step-by-step explanation:
$16.00-$5.35=$12.65
This means that $12.65/15 is the cost of each apple.
14) zeroes of the polynomial x^2+5x+6 are...
Both positive
Both negative
One is positive and other is negative
None
Answer:
both negative
Step-by-step explanation:
Descartes rule of signs tells us how many positive and negative real roots a polynomial has.
Given
f(x) = x² + 5x + 6 , with signs
+, +, + ← no change of signs, thus no positive zeros
f(- x) = (- x)² + 5(- x) + 6 = x² - 5x + 6 , with signs
+, -, + ← with 2 changes of signs. thus 2 negative zeros
Answer:
B) Both Negative
Step-by-step explanation:
[tex](x^2+5x+6)\\=(x^2+2x+3x+6)\\=x(x+2) + 3(x+2)\\=(x+3)(x+2)\\Hence,\ as\ their\ factors\ are\ (x+3)\ and\ (x+2)\ their\ zeroes\ are\ (-3)\ and\ (-2)\ respectively..\\As\ they\ both\ are\ negative..\ the\ answer\ is\ b)\\\[/tex]
There are 4 boys and 2 girls from the seventh grade and 3 boys and 5 girls from the eighth grade in the math club. The math club sponsor will randomly pick one student from each grade level to represent the team.
What is the probability that both will be girls?
Answer:
5/24 or 20.8%
Step-by-step explanation:
Probability that the 7th grader is a boy = number of boys/(total kids) = 4/(4+4) = 1/2
Probability that the 8th grader is a boy = 5/(5+7) = 5/12
Probability that both are boys = 1/2*(5/12) = 5/24 or 20.8%
Estimate the area of the figure. Each square represents 2 units^2.
Answer:
60 units²Step-by-step explanation:
Approximate area is about 50 units²
The closest option is the last one
Find the slope (3,-5) and (0,0)
Answer:
- [tex]\frac{5}{3}[/tex]
Step-by-step explanation:
Find slope by using slope intersept form ( [tex]\frac{y2-y1}{x2-x1}[/tex])
Plug the x and y values from the given pairs into slope interspt form: [tex]\frac{-5-0}{3-0}[/tex]
Find the diffrence: [tex]\frac{-5}{3}[/tex]
Solution : - [tex]\frac{5}{3}[/tex]
