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Amiraneli [1.4K]
2 years ago
14

Factor x^2-6x-7. A.(x-7)(x+1) B.(x-7)(x-1) C.(x+4)(x+7) D.(x+7)(x-1)

Mathematics
1 answer:
Marina86 [1]2 years ago
5 0
A is the answer because x^2-6x-7 is (x-7)(x+1).


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Plz show your work. Thx!! <br> 9m=6
grandymaker [24]
So first you would divide the 9 on both sides then 6 divided by 9 would be .6 repeating so m=.6 repeating.

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3 years ago
Pamela is 15 years younger than Jiri. The sum of their age is 33. what is Jiris age
Luden [163]

Answer:

24 years

Step-by-step explanation:

let jiri's age be x

Pamela's age=x-15

x+x-15=33

2x-15=33

collect the like terms to similar places

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2x=48

x=24

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Dominik [7]

Answer:

The two angles ADB and BDC are congruent since they are both right angles.

The segment AD and CD are congruent since D is the midpoint of AC.

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3 0
2 years ago
How much smaller is the sum of the first 1000 natural numbers than the sum of the first 1001 natural numbers?
aleksandr82 [10.1K]

ANSWER

1001

EXPLANATION

The sum of the first n - natural numbers is

S_n=  \frac{n}{2} (2a + d(n - 1))

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S_{1000}=  \frac{1000}{2} (2(1) + 1(1000 - 1))

S_{1000}=500 (1001)

S_{1000}=500500

The sum of the first 1001 terms is

S_{1001}=  \frac{1001}{2} (2(1) + 1(1001 - 1))

S_{1001}= 1001 \times (501)

= 501501

The difference is

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5 0
2 years ago
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Answer:

b

Step-by-step explanation:

3 1/2 x 3 x 1/2= 5.25 or 5 and 1/4

5 0
3 years ago
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