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Aneli [31]
3 years ago
7

Find the mistake in the problem. tell what is is.6th grade math ​

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0
He / she didn’t drop down the 2 after subtracting 19 from 242, instead he / she dropped down a 0.
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How to find the maximum or minimum value of a quadratic function?
kipiarov [429]

Answer:

Vertex form

Step-by-step explanation:

You convert to  vertex form  a(x - b)^2 + c . The coordinates of the maxm/minm will be (b, c).

For example find minimum value of  x^2 + 5x - 6:-

x^2 + 5x - 6

=  (x + 2.5)^2 - 6.25 - 6

= (x + 2.5)^2 - 12.25

The coordinates of minimumm will be (-2.5, -12.25)  The values of the minimum of the function is -12.25

6 0
3 years ago
A candle has been burning for 20 min and is now 25 cm tall. In an hour it will be 10 cm tall. Which equation models the height y
stiv31 [10]

Answer:

(y - 25) = - 0.25(x - 20)

Step-by-step explanation:

Given that :

Height of candle after burning for 20 minutes = 25 cm

Height after burning for 1 hr (60 minutes) = 10 cm

Height (y) in cm of candle x minutes after being lit:

Using the equation :

(y - y1) = m(x - x1)

m = (change in y / change in x)

Change in height within 60 minutes :

Height at 20 minutes = 25cm

Height after an hour = 10

Change in height per hour = (25 - 10) = 15cm

Hence, m = change in height per minute

15cm / 60 = 0.25cm ( - 0.25) (decrease in height)

y1 = 25 ; x1 = 20

(y - y1) = m(x - x1)

(y - 25) = - 0.25(x - 20)

4 0
2 years ago
Complete the following graphic organizer and then to find the missing information
Travka [436]

a) 4  

b) 47

c) 225

d) 120/400

4 0
3 years ago
Read 2 more answers
0.1 × 0.1 represent​
MariettaO [177]

Answer:

0.01

Step-by-step explanation:

0.1 x 0.1 = 0.01

HOPE IT HELPS YOU

4 0
3 years ago
Fido wants to buy a new car. He will need to get a car loan. Fido decides to wait for a few months until his credit history
Marta_Voda [28]

Answer:

Fido's decision is sensible because the cost of the car loan should be less this credit history improves

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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