Mark was thinking of a number. Mark doubles it and gets an answer of 64. What was the original number?

Answers

Answer 1
Answer:

Answer:

32

Step-by-step explanation:

32x2=64

Answer 2
Answer:

Answer:

32

Step-by-step explanation:

64/2=32


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Which of the following are ordered pairs for the equation y = 1/3x + 1?O (1,0) (2,3) (3,6)O (0,1) (3,2) (6,3)O (0,1) (1,4)(2,7)O (1,0) (3,2) (6,3)

Which of the following figures are quadrilaterals?

Answers

square , rectangle , rombus , parallelogram

Answer:

a four-sided figure.

Step-by-step explanation:

4. Solve the quadratic by factoring, isolating x^2, or using the quadratic formula:a. 2x^2 – 7x = 4

b. 81x^4 – 1


c. 2x^2 – 32 = 0

d. X^2 – 7x + 12

Answers

Hello,

A:
2x²-7x-4=0
==>2x²-8x+x-4=0
==>2x(x-4)+1(x-4)=0
==>(x-4)(2x+1)=0
==>(x=4) or (x=-1/2)

B: where is the sign "=" !!!!!!!!!!!!!!!!!!

81x^-1=(9x²+1)(3x+1)(3x-1) I can not go any further.


C)
2x²-32=0
==>x²-16=0
==>(x+4)(x-4)0
==>x=-4 or x=4

D:
where is the sign "="!!!!!!!!!!!!!!!!!!!!!!!!

x^2-7x+12=(x-4)(x-3) but I can not go ant further....

The football team has 30 more members than the basketball teams. If each group had 10 more members, the ratio of their membership would be 3:2. How many members are in each group? Write your answer as football x basketball yHELP PLEASE !

Answers

x = y + 30 (I)

(x + 10)/(y + 10) = (3)/(2) 

2x + 20 = 3y + 30
2x -  3y = 10 (II)
______________________________
2(y+30) - 3y = 10
2y + 60 - 3y = 10
-y = -50
y = 50

x = y + 30
x = 50 + 30
x = 80

Football team has 80 members, basketball team has 50 members.

Find the common ratio for the following sequence.

27, 9, 3, 1, ...

Answers

The following ratio would be 1/3. Its a fraction so you would also be able to say 1.3. :)

ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions.

Answers

Answer:

C. It has been stretched horizontally.

Step-by-step explanation:

According to the diagram, the parabola has not been reflected in any way, nor has it been translated, since the parabola is pointing up in a smile, and the vertex is still at the origin.

The parabola does appear to be stretched, since the parent function had points at (1, 1), and (2, 4), but this parabola does not contain those points.

Since the parabola appears to be flatter than the parent function, we can say that C. It has been stretched horizontally.

Hope this helps!

Answer: Option D

Step-by-step explanation

Because

Is WXY ~ ZYV? Justify your answer. The image is not drawn to scale.A. No, the sides are not in proportion.
B. No, the corresponding angles are not congruent.
C. Yes, WXY ~ ZYV with a scale factor of 9:8.
D. Yes, WXY ~ ZYV with a scale factor of 8:9.

Answers

Answer: C. Yes, WXY ~ ZYV with a scale factor of 9:8.

Step-by-step explanation:

In the given picture, we have two triangles Δ WXY and Δ ZYV in which

\angle {X}=\angle{Y}               [Right angle]

\angle {W}=\angle{Z}  

Therefore, by AA- similarity postulate, we have

\triangle{WXY}\sim\triangle{ZYV}

The scale factor is given by :-

k=(WX)/(ZY)=(XY)/(YV)=\frac{WY]{ZV}

\Rightarrow k=(18)/(16)=(6.75)/(6)=(22.5)/(20)=(9)/(8)

Hence,  \triangle{WXY}\sim\triangle{ZYV} with scale factor of 9:8 .

I hope this helps you