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3 years ago

Matching please help and help me under

Mathematics

1 answer:

slega [8]3 years ago

3 0

Answer:
y=x^2-2x+1 is matched to the second graph
Y=x^2-2x is matched to the third graph
Y=2x^2+4 is matched to the first graph

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Explain how to find the quotient of: (8a3+31a2-20a-5)/(8a-1)

pashok25 [27]

Answer:

Quotient = a²+ 4a- 2

Step-by-step explanation:

(8a3+31a2-20a-5)/(8a-1)

a² +4a-2 ⇒ quotient

(8a-1)√(8a3+31a2-20a-5)

8a²- a² ⇒ Multiplying (8a-1) by a²

- + ⇒ Changing signs

32a²- 20a- 5

32a²- 4a ⇒ Multiplying (8a-1) by 4a

- + ⇒Changing signs

-16a -5

- 16a +2 ⇒ Multiplying (8a-1) by -2

+ - ⇒ Changing signs

-7 ⇒ Remainder

We follow the steps of simple division to get the quotient which is a²+ 4a- 2

We multiply (8a-1) by factors such as a², +4a and -2 to get the same terms as given in the dividend.

4 0

3 years ago

Martha types a 4−digit code into a keypad to unlock her car doors. The code uses the numbers 1 and 0. If the digits are selected

rusak2 [61]

Answer:

3/8

Step-by-step explanation:

1. We list all codes that start with 0 and have 0 as second digit:

2. We list all codes that start with 0 and have 1 as second digit:

3. We list all codes that start with 1 and have 0 as second digit:

4. We list all codes that start with 1 and have 1 as second digit:

5. We find the number of codes which have exactly 2 zeros: 6 codes

6. The total number of outcomes is: 16 codes

7. We find the probability that the number of codes has exactly 2 zeros: 6/16 3/8

7 0

3 years ago

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Jemelly and her family drove 75 miles in 5 hours. What was their rate per 1 hour?

eimsori [14]

Answer:

15 mph

Step-by-step explanation:

75/5=15

7 0

3 years ago

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How do write the square root of 3

nikdorinn [45]

√3

The alt code of square root is alt 251

5 0

4 years ago

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How do I figure of the 7/3 I'm not sure how to add a fraction with a different denomination

Mnenie [13.5K]

Step-by-step explanation:

Hi there!!

Here, the thing is we should add them first yaa.

so, let's add them

 $= - 2 \frac{1}{6} + \frac{7}{3}$ 

by taking lcm we get their lcm is 6 and let's do it according to that,

 $= \frac{ - 12 \times 1}{6} + \frac{7 \times 2}{6}$ 

now, let's simplify them ok..

 $= \frac{ - 12 + 14}{6}$ 

so, we get 2/6 (i.e 1/3)

now, the number line must be greator than 1 and less than 1.

Hope it helps...

4 0

4 years ago

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