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balu736 [363]
3 years ago
14

Twice the sum of a number and three

Mathematics
1 answer:
Kruka [31]3 years ago
8 0
The answer will be 2(x+3)
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Factorise : x^2+x-72 Step by Step​
Ivan

Answer:

(x + 9)(x - 8)

Step-by-step explanation:

f(x) = x^2 + x - 72

     = x^2 - 8x + 9x - 72

     = (x^2 - 8x) + (9x - 72)

     = x(x - 8) + 9(x - 8)

     = (x + 9)(x - 8)

4 0
3 years ago
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Can someone please help me with this question, thank you! :)
loris [4]

Answer:

14

Step-by-step explanation:

Sure thing, just use PEMDAS!

(Simplify first so that 24/4 = 6)

2 x 1 + 2 x 6

2 + 2 x 6

2 + 12

14

5 0
3 years ago
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Employment data at a large company reveal that 75% of the workers are​ married, 42​% are college​ graduates, and half of the col
galina1969 [7]

Answer:

a. P=0.04

b. P=0.54

c. P=0.96

Step-by-step explanation:

If half of the college graduates are married, then we have:

- 21% are college graduates and married.

- 21% are college graduates and not married.

If 75% of the workers are married, and 21% of the workers are college graduates and married, then (75%-21%)=54% of the workers are not college graduates that are married.

If 25% of the workers are married, and 21% of the workers are college graduates and not married, then (25%-21%)=4% of the workers are not college graduates that are not married.

a) P=0.04 (explanation above)

b) P=0.54

c) In this case, the probability is the complement of point "a". Then we can calculate it by substracting the probability of not being married and not being a college graduate.

P=1-0.04=0.96

8 0
3 years ago
Evaluate the expression 3(x-1)2nd power +2x-7 for x=3
Yanka [14]

Answer:

11

3Step-by-step explanation:

Given

3(x - 1)² + 2x - 7 ← substitute x = 3 into the expression

= 3(3 - 1)² + 2(3) - 7

= 3(2)² + 6 - 7

= 3(4) - 1

= 12 - 1

= 11

5 0
3 years ago
Look at the coordinate plane below.
dybincka [34]

Answer:

K (-3,-7)    A (-4,1)   O (-5,5)  T (-7,2)    

Step-by-step explanation:

All of these have the x as the lesser value

8 0
3 years ago
Read 2 more answers
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