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stiks02 [169]
3 years ago
14

Find the values of a and b such that x^2-x+5=(x-a)^2+b

Mathematics
1 answer:
Romashka [77]3 years ago
5 0

Answer:

a = 0.5 or 1/2

b = 19/4 or 4.75

Step-by-step explanation:

Step 1: Isolate <em>x</em>'s

x² - x = -5

Step 2: Complete the Square

x² - x + 1/4 = -5 + 1/4

(x - 1/2)² = -19/4

Step 3: Move everything to one side

(x - 0.5)² + 4.75

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Help me plz these are my last points and my las try the answer i did said its wrong
irga5000 [103]

Answer:

b=8h, not 8/h

tell me if it help

4 0
2 years ago
Read 2 more answers
Estimate 394/24 by first rounding each number so that it has only 1 nonzero digit.
larisa [96]

Answer:

48 million

Step-by-step explanation:

Since 48,000,000 has TWO non-zero numbers, not one, it can't be the

answer.

The largest digit in the given number is the ten-millions digit, so

you want to round to the nearest ten million, rather than the nearest

million.

47,859,600 rounds to 50,000,000, to one significant digit.

Normally, we would say "round to one significant digit," but you

probably have not seen that term. Your question means the same th

3 0
3 years ago
Daniel thinks of a number and subtracts 2
Tatiana [17]

Answer:

the number is 126

Step-by-step explanation:

1) multiply each side by 32: (n-2) / 32 = 4

2) subtract 2 from each side: n-2 = 128

3) n = 126

7 0
3 years ago
Read 2 more answers
Work out 11. 28- 2.843​
umka21 [38]

Answer:

25.157

Step-by-step explanation:

28-2.843=25.157

4 0
3 years ago
The formula for the distance traveled over time t and at an average speed v. v times t. If Amit ran for 40 minutes at a speed of
lorasvet [3.4K]

Answer:

Thus, Amit ran 3.33 KM

calculation needed:

conversion of time (40 minutes to hour)

multiplying velocity  and time (which we got in hours)

Step-by-step explanation:

Given

to calculate the distance: . v times t

that is multiply v with t

where v is average velocity

t is the  time

__________________________________

Given

v = 5 km/hour

time = 40 minutes

since speed is in Km per hour and also we have to find distance in km

lets convert time which in 40 minutes to hour

we know

60 minutes = 1 hour

1 minute = 1/60 hour

40 minutes = 40/60 hour = 2/3 hour

distance = v times t

distance = 5*2/3 = 10/3 = 3 1/3 km = 3.33 km

Thus, Amit ran 3.33 KM

calculation needed:

conversion of time (40 minutes to hour)

multiplying velocity  and time (which we got in hours)

4 0
3 years ago
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