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solmaris [256]
3 years ago
14

HELP ME PLEASE AND FAST HURRY

Mathematics
2 answers:
KonstantinChe [14]3 years ago
8 0

Answer:

(1,0)

Step-by-step explanation:

The vertex is the maximum of the parabola

It is at x=1 and y = 0

(1,0)

jolli1 [7]3 years ago
8 0

Answer:

(1, 0)

Step-by-step explanation:

In simpler words, the vertex of a parabola is where it bends.  

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A had $360 more than B. When A spent $144 and B spent half of his money, A had 6 times as much money as B, Find the ratio of the
Karolina [17]

Answer:

13:3

Step-by-step explanation:

A=x B=y

first; x= 360+y

later;x= 216+y

A:B

216+y: 1/2y = 6: 1

216+y/y÷2 =6/1

216+y = 3y

y = 108

first; x =360+y

360 +108

468

A:B = 468:108

13:3

3 0
3 years ago
Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total calling time (in minutes). When
Virty [35]

Answer:

Credit remaining after 21 minutes = $30.4

Step-by-step explanation:

Credit remaining on a phone card is a linear function of the total calling time.

When graphed, let the linear function representing the line is,

y = mx + b

Where 'm' = slope of the line

b = y-intercept

From the graph,

Slope of the line = -0.12

y = -0.12x + b

If this line passes through a point (33, 28.96),

28.96 = -0.12(33) + b

b = 28.96 + 3.96

b = 32.92

Therefore, the linear function is,

f(x) = -0.12x + 32.92

where x = calling time

Credit left in the card after 21 minutes,

f(21) = -0.12(21) + 32.92

      = -2.52 + 32.92

      = $30.4

6 0
3 years ago
In the expression , 5.28 x 10^3 , which number is the base ?
solong [7]
Bse is 10
x^m, x is base of exponent
7 0
3 years ago
Question 29 of 30
frozen [14]

Answer:

7/10

Step-by-step explanation:

this is the simplest form

3 0
2 years ago
Find the solution to the system 9x−4y=−13 and 9x−2y=−20
BaLLatris [955]

Answer:

x = -3, y = -3.5.  As an ordered pair it is (-3, -3.5).

Step-by-step explanation:

9x − 4y = −13

9x − 2y =  -20

Subtract:-

-2y = 7

y = -3.5.

Substitute for y in the first equation:

9x - 4(-3.5) = -13

9x =  -27

x = -3.

3 0
3 years ago
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