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KonstantinChe [14]

4 years ago

6

Hey y'all I have a question, who ia correct..? (If possibly could you also tell me how to find out if a trianhle is unique?) Tha

nks!

1 answer:

Flura [38]4 years ago

5 0

Answer:

Hazal

Step-by-step explanation:

If you use the forama crooetly then you get 2 trinngles

You might be interested in

Use binomial expansion to solve each exercise. (a) Find the coefficient of xy19 in (3x − 2y) 20.(b) Give a formula for the coeff

pishuonlain [190]

9514 1404 393

Answer:

(a) -29,884,416

(b) C(n,(n -k)/2) . . . where C(n,k) = n!/(k!(n-k)!) and k ∈ ℕ

Step-by-step explanation:

(a) The coefficient of the k-th term of the expansion is ...

C(20,k)(3x)^(20-k)(-2y)^k

For k=19, this is ...

19(3x)(-2y)^19 = -29,884,416xy^19

The coefficient of the term is -29,884,416.

__

(b) The p-th term of the expansion of (x +1/x)^n is ...

C(n,p)(x^(n-p)(1/x)^p = C(n,p)(x^(n-2p))

For some exponent k of x, the value of p will be ...

k = n -2p

p = (n -k)/2

Then the coefficient of x^k will be C(n, (n-k)/2), where C(n, x) = n!/(x!(n-x)!).

You will notice that there will only be a term x^k for k having the same parity as n.

5 0

3 years ago

Walter wants computer software that cost $129. He has $57 saved. If he saves a maximum of $15 a week, the following inequality c

Lina20 [59]

In this question, it is given that

Walter wants computer software that cost $129. He has $57 saved.

he saves a maximum of $15 a week, the following inequality can be used to find how many weeks it will take Walter to save enough money to buy the software.

$15x+57 \geq 129$

And we have to solve this inequality for x.

First we subtract 57 to both sides. And on doing so , we will get

$15x\geq 72$

Dividing both sides by 15.

$x \geq 4.8$ \

Correct option is A.

8 0

4 years ago

If rent is $850 for each 2 weeks, how much is the rent for 7weeks?

saw5 [17]

Answer:

$2,975

Step-by-step explanation:

7/2 times 850

3 0

3 years ago

I have to make the equation equal but I don’t know how to make the H equal but you can’t change the chemical formula

Firdavs [7]

Answer:

Ca(OH)2 + 2 HBr = CaBr2 + 2 H2O

Step-by-step explanation:

Is it H2O2 on the right side and HBr2 on the left side?

Then there is no solution.

I think the formula must look like

Ca(OH)2 + HBr = CaBr2 + H2O

You have 2 Br on the right side then it must be 2 HBr on the left side.

Ca(OH)2 + 2 HBr = CaBr2 + H2O

You have 4 Hs and 2 Os on the left side then it must be 2 H2O on the right side.

Ca(OH)2 + 2 HBr = CaBr2 + 2 H2O

Now everything looks fine.

4 0

3 years ago

Sam ran 3 1/4 miles on Tuesday and then ran 2 5/6 miles on Wednesday. How many total miles did Sam run?

Masteriza [31]

Sam run for total 6.08 miles.

Sam run 3 1/4 miles on Tuesday and then ran 2 5/6 miles on Wednesday.

<h3 /><h3>What is fraction?</h3>

Fraction is ratio of integers. example- 7/8.

Sam run $3\frac{1}{4}$ miles on Tuesday.
on $2\frac{5}{6}$ on Wednesday
Total run =Run on tuesday + Run on wednesday

Total run = $(3\frac{1}{4} )+(2\frac{5}{6} )$

= 13/4 + 17/6

Total run = 6.08

Thus Sam run for total 6.08 miles

Learn more about fraction here:
brainly.com/question/10354322

#SPJ1

5 0

2 years ago