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VMariaS [17]
2 years ago
14

Hello I'm just here to say if a question asks "circle all of the expressions that are equivalent to some type of math question d

o i pick more than one? ​
Mathematics
1 answer:
slamgirl [31]2 years ago
3 0
Based on the wording of the question, I believe that the answer allows you to pick more than one. However, there still may only be one answer.
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What is the order from least to greatest?
kenny6666 [7]

Answer:

5/4, 1.3, 1 8/25

Step-by-step explanation:

5/4 is equal to 1 1/4, which is 1.25

1.3 is still 1.3

1 8/25 is equal to 1.32, which is sliglightly greater than 1.3

8 0
3 years ago
Read 2 more answers
Simplify the following expression: '5x - 8 + 3y + 10x - 8y'
monitta

Answer:

-5x-8-11y

Step-by-step

Because you shift 10x to -10x and then 5x-10x = -5x

You leave the -8 the same

You do 3y to -3y and  then do -3y -8y = -11y

Hence altogether you get, -5x -8 -11y

6 0
3 years ago
PLEASE HELP
Naya [18.7K]

Answer:

11. Equation of hyperbola having  vertices at (0, ±6) and foci at (0, ±9).

is given by \frac{y^2}{a^2}- \frac{x^2}{b^2}=1

also b²= c²-a²

 b²=81-36

b²=45

So, Equation becomes , \frac{y^2}{36}- \frac{x^2}{45}=1

Option (D) is correct.

12.Vertices (0,  ± 4), Asymptotes = ±1/4.x

equation of asymptote is given by, x = \pm y \frac{b}{a}

\frac{4}{b}=\frac{1}{4}

So a=4 and b=16,

So , equation becomes \frac{y^2}{16}- \frac{x^2}{256}=1

Option (B) is correct.

13.  x= t-3, and y = t²+ 5

Replace t by x+3, we get

y= (x+3)² +5

y=x²+ 6x +14

Option (A) is correct.

14. Polar coordinates is given by (r,∅)

Polar coordinates of point is (3, 2π/3)

So, r =3, ∅ =2π/3

x= r cos∅ and y = r sin∅

x=3 Cos (2π/3) and y= 3 Sin (2π/3)

x= -3/2 and y=3√3/2

Option (A) is correct.

14. Polar coordinate is given by (r,∅)

Here , r=1, and ∅ = -π/6

x= r Cos ∅ and y =r Sin∅

x= 1 Cos (-π/6) and  y= 1 Sin (-π/6)

x =√3/2 and y =1/2

Option (B) which is B) (1, negative pi divided by 6 + 2nπ) or (-1, negative pi divided by 6 + 2nπ) is correct.

16. Two pairs of polar coordinates for the point (4, 4) with 0° ≤ θ < 360°.

is  option (B) which is B) (4 square root 2 , 45°), (-4 square root 2 , 225°).

17. A circular graph with inner loop on the left of a limacon curve is given by

r = a + b Cos∅.

In this case a> b.

So , Option (D) r = 4 + cos θ as well as (A) r = 3 + 2 cos θ looks correct.

18. Equation of limacon curve is given by r = -2 + 3 cos θ, here , a<b

So it is symmetric about y-axis only.Option (B) is correct.



5 0
3 years ago
Fraction 18/40 simplest form
dlinn [17]
9/20, i have an app called fraction calculator. works great
4 0
2 years ago
Read 2 more answers
C^2-4c+cd-4d=(c-4)() find the missing factor
Nadya [2.5K]
It is (c+d)

you can basically use FOIL (first,outside,inside,last) to solve this.

you know the first term of the factor has to be C because of the c^2

the second then has to be D because you haven't seen D in the factor yet and it is in the equation.

then you know from the equation that the terms with D are not negative so D isn't negative so you have form the information above (c+d)
6 0
3 years ago
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