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vazorg [7]
2 years ago
15

How can I factorise expressions

Mathematics
1 answer:
expeople1 [14]2 years ago
7 0

Answer:

The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1) . This video shows you how to solve a quadratic equation by factoring.

Step-by-step explanation:

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A pair of hikers, 18 miles apart, begin at the same time to hike toward each other. If one walks at a rate that is 1 mph faster
dsp73

Answer:

The chart below shows Mrs. Thompson's grocery bill. What is the average amount Mrs. Thompson spent on groceries?

A. $58

B. $68

C. $78

D. $340

3 0
3 years ago
You pick 5 digits (0-9) at random without replacement, and write them in the order picked. What is the probability that you have
Tanzania [10]

Answer:

Probability is : 1/30240= 0.000033068

Step-by-step explanation:

You pick 5 digits (0-9) at random without replacement, and write them in the order picked.

The probability that you have written the first 5 digits of your phone number is -

As there are no repeats, the choice to choose from decreases at each step making it 10,9,8,7,6.

(1/10)(1/9)(1/8)(1/7)(1/6)=1/30240= 0.000033068

4 0
3 years ago
4) An arithmetic sequence has a 7th term of 54 and a 13th term of 94. Find the common difference
san4es73 [151]

Answer:

20/3

Step-by-step explanation:

Every nth term takes the form of  a + n*d, where a is the first  term.

So 7th term = (54 = a + 7d), 13th term = (94 = a + 13d).

equate them both:

94 - 13d = 54 - 7d

40 = 6d

d = 40/6

6 0
2 years ago
PLZZZZZZ I NEED HELP IM SO TIRED PLZZZZZZZZ
ipn [44]

Answer:

8.99

Step-by-step explanation:

\left|-46.09+51.64\right|+\left|18.08-21.52\right|

\left|-46.09+51.64\right|=5.55

\left|18.08-21.52\right|=3.44

5.55+3.44

8.99

8 0
2 years ago
A statue is 175 feet tall. if at a certain time of day a 6 foot tall person cast an 8 foot shadow, how long will the statues sha
xxMikexx [17]
If a 6 foot tall person cast an 8 foot shadow then the scale would be 4:3. So the statue will be aproximately 233,4 feet long (Sorry if I'm wrong)
8 0
3 years ago
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