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2 years ago

Please help and plz make sure it’s right :)

Mathematics

2 answers:

irakobra [83]2 years ago

6 0

-10 is your answer
180 degrees makes up every triangle so you subtract 50 and 80 degrees which leaves you with 50 degrees, that angle with the x is equal to 50 then you solve for x by subtracting 60 on both sides of the equal sign and you’re left with x= -10

Softa [21]2 years ago

5 0

Answer:

-10

Step-by-step explanation:

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Calculate the number of subsets and the number of proper subsets for the set.

arlik [135]

A set of n elements has 2ⁿ subsets. One of these subsets is the set itself, so this set would have 2ⁿ - 1 proper subsets.

The given set has 4 elements, so it has 2⁴ = 16 subsets and 2⁴ - 1 = 15 proper subsets.

Just to illustrate the claim, we have

• subsets of size 0 (1 of these):

{ } (empty set)

• subsets of size 1 (4 of these):

{1/6}, {1/7}, {1/8}, {1/9}

• subsets of size 2 (6 of these):

{1/6, 1/7}, {1/6, 1/8}, {1/6, 1/9}, {1/7, 1/8}, {1/7, 1/9}, {1/8, 1/9}

• subsets of size 3 (4 of these):

{1/6, 1/7, 1/8}, {1/6, 1/7, 1/9}, {1/6, 1/8, 1/9}, {1/7, 1/8, 1/9}

• subsets of size 4 (1 of these):

{1/6, 1/7, 1/8, 1/9}

and the last one is the only subset that is not a proper subset, because that subset = the set.

6 0

2 years ago

لیست داده و

choli [55]

Given parameters:

Cost price of the article = Nu.28.30

Selling price of the article = Nu.29.30

Unknown:

Gain percentage = ?

The gain percentage is the same as the percentage profit on a trade.

The formula is given as:

Gain percentage = $\frac{Profit}{Cost price} x 100$

Profit = Selling price - Cost price

= Nu.29.30 - Nu.28.30

= Nu. 1

Now input the parameters and solve;

Gain percentage = $\frac{1}{28.3} x 100$

= 3.5%

The gain percent is 3.5%

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3 years ago

Read 2 more answers

W - 5,129 = 2,329 A. w = 7,468 B. w = 7,558 C. w = 7,458

Shkiper50 [21]

W−5129=2329

Step 1: Add 5129 to both sides.
(5129+2339)

w−5129+5129=2329+5129 =

w=7458

7 0

3 years ago