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Lapatulllka [165]

3 years ago

6

Chords AB and CD intersect at point E . According to the diagram, which pair of numbers could represent lengths of segment CE an

d DE?

2 answers:

ankoles [38]3 years ago

6 0

Answer:

D) 3 and 8

Step-by-step explanation:

slava [35]3 years ago

3 0

The answer is D - 3 and 8 :)

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Divde the square roots of 121 by the product of the Square roots of 25 and 4

Pavel [41]

Answer:

1.1

Step-by-step explanation:

$\frac{ \sqrt{121} }{ \sqrt{25} \times \sqrt{4} } = \frac{11}{5 \times 2} = \frac{11}{10} = 1.1$

7 0

3 years ago

Calculate the coefficient of x4y18 in the expansion of (x − y)22

Oksana_A [137]

Binomial theorem:

$(x-y)^n=\displaystyle\sum_{k=0}^n\binom nkx^k(-y)^{n-k}$

The term with $x^4y^{18}$ corresponds to $n=18+4=22$ and $k=4$ (or $k=18$ , since $\dbinom nk=\dbinom n{n-k}$ ).

So, the coefficient of this term is

$\dbinom{22}4(-1)^{18}=\dbinom{22}4=\dfrac{22!}{4!(22-4)!}=7315$

4 0

3 years ago

Factor the polynomial.

dmitriy555 [2]

Answer:

The answer is B.

Step-by-step explanation:

Hope this helps! Have an Amazing day!!

3 0

3 years ago

67?96 A.> B.not equal to C.= D.less that or equal to E.< F. greater than or equal to choose all that apply please.

slega [8]

B because 67 is not equal to 96
E because 67 is less than 96

6 0

3 years ago

I need help with 9 and 11. im bein stupid today :/

tekilochka [14]

First of all, ur not stupid, ur brain is just tired.
9.
9.37
9.3
9.219
9.129
11.
5.312
5.231
5.132
5.123

7 0

3 years ago

Read 2 more answers