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Sedbober [7]
2 years ago
6

Excuse my doodle! please help!

Mathematics
1 answer:
vlabodo [156]2 years ago
7 0

Answer:

f‐¹(x) = 4x² - 3, for x < 0.

Nice doodle :P

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(03.01 LC)
Lynna [10]
Answer: root of 18
9+9=x^2
18=x^2
x = 3 root of 2 or root of 18
5 0
3 years ago
2. A soccer field is bordered on three sides by a parking lot of width x. The total
notsponge [240]

Answer: 50m

Step-by-step explanation:

this is the logical way I solved it:

1. Find the area of the entire area thing

300*200=60000

2. Subtract the area of the field from the area of the entire place

60000-30000=30000

3. Divide the area of the parking by three because there are three sides

30000 ÷ 3 = 10000

4. Divide 10000 by 200, not 300 because we want to find the side with one <em>x</em>, not two <em>x</em> (there are two sides adding on to the side with 300, but only one side on the side with 200)

10000÷200= 50

I know the steps are weird, but I know this is the right answer because this was on the unit test (same misspelling and everything lol) and during tutoring my teacher showed me how to do it, but of course I had to forget the steps.

4 0
3 years ago
Solve the system y = -x + 7 and y = -0.5(x - 3)^2 + 8.
AlladinOne [14]

Answer:

(1,6) & (7,0)

Step-by-step explanation:

y = -x + 7

y = -0.5(x - 3)² + 8

To solve the system, solve these two equations simultaneously

-x + 7 = -0.5(x - 3)² + 8

-x + 7 = -0.5(x² - 6x + 9) + 8

-x + 7 = -0.5x² + 3x - 4.5 + 8

0.5x² - 4x + 3.5 = 0

x² - 8x + 7 = 0

x² - 7x - x + 7 = 0

x(x - 7) - (x - 7) = 0

(x - 1)(x - 7) = 0

x = 1, 7

y = -1 + 7 = 6

y = -7 + 7 = 0

(1,6) (7,0)

Since the system has two distinct solutions, the line and the curve meet at two distinct poibts9: (1,6) & (7,0)

8 0
3 years ago
Beth is making fruit salad. She adds 3 grapes for every 2 strawberries. If she uses 12 strawberries, how many grapes will she us
Diano4ka-milaya [45]
The answer is 18. she will use 18 grapes.
5 0
3 years ago
Read 2 more answers
If f(x)=7(x-1)+8, what is the value of f(1)<br>​
irga5000 [103]

Answer:

8

Step-by-step explanation:

f(1)=7(1-1)+8

f(1)=7(0)+8

f(1)=0+8

f(1)=8

4 0
3 years ago
Read 2 more answers
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