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DerKrebs [107]
3 years ago
10

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Mathematics
2 answers:
djverab [1.8K]3 years ago
8 0

Answer:

The y-axis is the correct answer.

dezoksy [38]3 years ago
4 0
Answer:

The axis of symmetry is x=6
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What is the volume if this rectangular prism: 5/2 cm by 3/4 cm by 1/3 cm
aleksley [76]

Answer:

5/8 cm

Step-by-step explanation:

5/2*3/4=15/8

15/8*1/3=15/24=5/8

7 0
3 years ago
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A house that costs $125,400 appreciates at a rate of 3% each year. What is the value of the
ser-zykov [4K]

Answer:

The value after three years is $137,027.97

Step-by-step explanation:

Here, we want to get the value of the home after 3 years

Generally, we have the exponential formula as follows;

y = P(1 + r)^t

where P is the original cost which is $124,400

r is the rate of increase which is 3% = 3/100 = 0.03

t is the time which is 3 years

Substituting these values;

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6 0
3 years ago
The volleyball team and the wrestling team at Stamford High School are having a joint car wash today,
Sedbober [7]

Answer:

Money raised by each team = 94 + 11 = <em>$105</em>

Number of cars washed = <em>11</em>

Step-by-step explanation:

Money already present with volleyball team = $50

Money raised by washing each car by volleyball team = $5

Let the number of cars washed = x

Money raised by washing cars = $5x

Money already present with volleyball team = $94

Money raised by washing each car by volleyball team = $1

Money raised by washing cars = $1x = $x

Given that, both the teams have raised same amount of money:

50+5x=94+x\\\Rightarrow 44=4x\\\Rightarrow x=11

Money raised by each team = 94 + 11 = <em>$105</em>

Number of cars washed = <em>11</em>

4 0
3 years ago
I need help on 4 and 6 please help me. Don’t put a link.
Arte-miy333 [17]

Answer:

I don't know about 4 but of no. 6, it is A

Step-by-step explanation:

3 0
2 years ago
5×+9y, when x=8 and y=11
vovikov84 [41]

Answer:

40+99

139

Step-by-step explanation:

7 0
2 years ago
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