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prohojiy [21]
3 years ago
14

Find the Precision for each measurement. 40 feet? 12cm? 9 1/2in.?

Mathematics
1 answer:
iris [78.8K]3 years ago
8 0

precision for 40 feet is 1/2 foot

12 cm is 1/2 cm

 for 9 1/2 in is 1/4 in

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If Gina leaves now and drives at 66km/h she will reach Alton just in time for her appointment on the other hand if she has lunch
Stolb23 [73]

Answer:

165km

Step-by-step explanation:

If Gina leaves now and drives at 66km/h she will reach Alton just in time for her appointment

Now:

Distance=Speed X Time

D=66 X t=66t.....(I)

If she leaves in 40 minutes,and she must get there at the same time, her new drive time will be:

t hours - 40 minutes

=(t-40/60)hours=( t-2/3) hours

Her Distance this time

D=90(t-2/3)=90t-60.....(ii)

Since the distance to Alton does not change, we equate (I) and (ii)

66t=90t-60

60=90t-66t

60=24t

t=2.5 hours

From equation (I)

Distance=66t=66X2.5=165km

Distance to Alton is 165km.

3 0
3 years ago
The Kendal Company manufactures automobile engine parts. Running the manufacturing operations requires 12 watts (units of electr
Monica [59]

24 because when you plug in 0 for both x and y:  

0=12(0)+24  

12*0=0, leaving you with 24.

4 0
3 years ago
Add the two expressions.<br><br> −2.4n−3 and −7.8n+2
Sphinxa [80]

Answer:

-10.2n - 1

Step-by-step explanation:

We have two expressions in variable n and we have to add the two expressions.

An important thing to note is that only like terms can be added. i.e. the term with "n" can only be added or subtracted to the term with "n". Similarly a constant can only be added or subtracted to a constant.

(-2.4n-3)+(-7.8n+2)\\=-2.4n-3-7.8n+2\\=-2.4n-7.8n-3+2\\=-10.2n-1

Thus, the two given expressions add up to -10.2n - 1

4 0
3 years ago
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Musya8 [376]

Answer:

6 hot dogs, 2 drinks

Step-by-step explanation:

let y = number of hot dogs

let x = number of drinks

system:

y = 3x

4.5y + 2.25x = 31.50   (standard form:  y = -1/2x + 7)

if you graph the system, lines intersect at (2, 6)

6 0
2 years ago
Convert 12,000+7*10^(4) to scientific notation
Nostrana [21]

Answer:

Step-by-step explanation:

Enter numbers or scientific notation.

For scientific notation, use a carat ^ for the powers of 10 or use e notation.

Scientific Notation: 3.45 x 10^5

E Notation: 3.45e5

5 0
3 years ago
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