Pythagorean theorem
Witch one of these numbers is irrational?√
(A)- 3 (B)- 17
(C)- √5 (D)- 2/3
The answer is (C) because √5 is a never ending number and it does not stop after the decimal
what is this number converted to scientific notation
45,000
4.5 x 104 because if the exponent is positive you move the decimal to the right in order to make the number larger you add zeros as placeholders If necessary and if the exponent in negative then you move the decimal to the left to make the number smaller.
Witch one of these is a function
(2,3) (4,3) (8,9) (2,5)
(3,5) (2,7) (1,8) (6,5)
(4,6) (2,9) (7,7) (7,8)
The correct answer is the second one because if its a function x can never be the same.
what is the formula for the slope intercept form?
y1~mx1+b because
A line with a slope of 8 and a y-intercept of
-10 would have an equation of y = 8x – 10.
There is a table that has these numbers
x- 0 -2
y- 2 2
what is the slope of the table
The answer is 2 because if you put this table on desmos and then you put y1~mx1 +b then it gives you the (M) witch equals to 2
A triangle has a side that = to 84 and another side that = to 13 and one last side that = to 85. Is this a right triangle or not.
(A)-Yes
(B)-No
The correct answer is (Yes) because a2+b2 =c2
So 132+842=7225 and then you square root it and you are supposed to get the biggest number so =85
Jenny thinks that the answer to this equation is 116 but Bobby thinks its 104 who is correct 24 + 102 =
The answer is that Jenny is correct because if 102 = 100 and 24 =16 then its 116 because how ever many times the exponent is that's how many times you multiply it by.
Martin has 5 shirts because he just moved in to his new house he plans to buy 2 new ones each month what is the equation for this.
The answer is y=2x +5 because he buys 2 shirts every month so that is 2x and he has 5 so that is +5
If the line goes through the origin is that a proportional relationship or not ?
It is because in order for it to be a linear relation ship it has to go through the origin of the graph and because their is no y intercept.
what is 44 x 42 = too
The answer to this equation is 4096 because 44 = 256 and 42 = 16 and if you multiply them together it equals to 4096 it all depends on what number the exponent is.
Bob thinks that his door looks crooked because the corner of it does not look straight his friend John thinks it looks fine but they wanted to see who was correct they checked and found out that the with measured 25 inches and the height was 36 inches they then saw that distance was 45 inches, the question is who is correct??
The correct answer is that Bob is correct because if you add 252+362= √1921 =43.8 so that means that he was correct because it was supposed to be 45 not 43.8.
what is the scientific notation for the number 500
The answer is 5 x 102 because if the exponent is positive you move the decimal to the right in order to make the number larger you add zeros as placeholders If necessary and if the exponent in negative then you move the decimal to the left to make the number smaller.
Tommy has the formula of a sphere that is 4/3 pi r3 he wants to figure out what the volume of the sphere is. If the radius is 9.3 what is the volume of the sphere ?
The volume of the spheres is 3369.2 pi units3
because if you plug in the values 4/3 (pi) (9.3)3
then you get 3369.2 and then put pi units3
what is the y intercept of
x- 8 4
y- 6 4
the y intercept is 4 because if you put the formula y1~mx1+b the b is your y intercept Witch was 4
Bella wants to have a triangular pool so all her friends could have their own side and she is going to use 3 pieces of tiles that have the measures of 10, 8, 7 Will she have a right triangle pool or will it be slanted?
The answer is she will have a slanted pool because when you subtract 102-82=√36=6 So she had a slightly slanted pool
Witch one of these numbers is not irrational
(A)-√5 (B)-(pi)
(B)-√10 (D)- -1/3
The answer is D because irrational means that it is any number that cant be show as a fraction.
A 4,000 deposit was made for 18 months at a simple interest rate of 2.0% what is the interest =
The answer is 320 because to get interest you multiply 4,000 x 4 because you can only multiply by years so 12 months is one year so that would be 4 and then you multiply .02 and you get your answer Witch is 320
Veronica asks her math teacher for the formula to get the volume of a sphere because she wants to know the volume of her soccer ball the teacher tells her that the formula is 4/3 (pi) (r3) then she figures out that the diameter of her soccer ball is 12 what is the volume of Veronica's soccer ball ?
The volume of her soccer ball is 113.1 because if she has the diameter you have to divide it in order to get the radius so the radius of her soccer ball is 6 so if you plug in 4/3 (pi) (63) and your answer 113.1
Francisco has a question he is struggling with it says "A line has a slope of –9 and passes through the point (1,–3). Write its equation in slope-intercept form."
The answer is y=-9x+6 because if you plug it into Desmos and put y1~mx1+b m -9 so it would already be y=-9x and then +6 for the letter b y intercept