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miv72 [106K]
3 years ago
13

Which algebraic expression represents the phrase "two times the quantity of a number minus 12"?

Mathematics
2 answers:
Umnica [9.8K]3 years ago
7 0
The answer to the question is 2y-12
Mrac [35]3 years ago
6 0
The answer to the expression is 2y-12
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What is the constant of proportionality in the equation x/y = 2/g?
LenKa [72]

Answer:

2

Step-by-step explanation:

The constant of proportionality in the equation x/y = 2/g is 2. 2 is the only number in the equation.

6 0
3 years ago
What I would like to know is how to solve this problem
ratelena [41]
30 - 29 = 1 for the first one.
3 0
2 years ago
Jim drove 605 miles in 11 hours. At the same rate, how many miles would he drive in 13 hours?
svlad2 [7]

Answer: 715 Miles


Step-by-step explanation:

Divide 605 miles by 11 hours, which would give you how far he travels in 1 hour. (605/11=55)  Since they give you 13 hours, multiply 13 hours by 55 miles which gets you 715 miles :)

8 0
3 years ago
What is the seventh term of the sequence whose nth term is (n + 1)(n − 2)?
pav-90 [236]
If you plug in 7 for n, you get
(7+1)(7-2).
Simplify that.
(8)(5)
Simplify that and you get the 7th term of the particular sequence is,
40
Hope it helps :D
8 0
3 years ago
What is the equation of the quadratic graph with a focus of (1, 1) and a directrix of y = −1? PLs HELP!!
Delicious77 [7]
ANSWER
f(x)= \frac{1}{4} {(x - 1)}^{2}

EXPLANATION

Since the directrix is
y = - 1

the axis of symmetry of the parabola is parallel to the y-axis.

Again, the focus being,

(1,1)

also means that the parabola will open upwards.

The equation of parabola with such properties is given by,

{(x - h)}^{2} = 4p(y - k)
where
(h,k)

is the vertex of the parabola.

The directrix and the axis of symmetry of the parabola will intersect at
(1, - 1)

The vertex is the midpoint of the focus and the point of intersection of the axis of the parabola and the directrix.

This implies that,
h = \frac{1 + 1}{2} = 1

and
k = \frac{ - 1 + 1}{2} = 0

The equation of the parabola now becomes,

(x - 1) ^{2} = 4p(y - 0)

|p| = 1

Thus, the distance between the vertex and the directrix.

This means that,

p = - 1 \: or \: 1

Since the parabola opens up, we choose
p = 1
Our equation now becomes,

{(x - 1)}^{2} = 4(1)(y - 0)

This simplifies to
{(x - 1)}^{2} = 4y

or

y = \frac{1}{4} {(x - 1)}^{2}

This is the same as,

f(x)= \frac{1}{4} {(x - 1)}^{2}

The correct answer is D .
4 0
3 years ago
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