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3 years ago

Find a, b, and plz help me and don't spam me with links

Mathematics

1 answer:

Natali5045456 [20]3 years ago

5 0

A° = 38, b°= 90, c° = 38

the square on the angle opposite to b shows that it is a right angle which means it’s 90°

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What's 1/2 divided by 3? Your answer should be written as a fraction.

Agata [3.3K]

Your answer should be 1/6 because you are dividing thing by the number.

8 0

2 years ago

What is the value of the expression when y = 24? **Twelve less that eight times y.

vfiekz [6]

answer: 180

Step-by-step explanation:

8y-12

plug in the variable

8 (24) - 12

192-12

180

6 0

3 years ago

Find y when x=14 if y varies directly with x2, and y =72 when x=6

Art [367]

6 times 12 is 72 so 14 times 12 would be 168 if that is what you are looking for. So for that y=168 :-)

3 0

3 years ago

Noah loves the Half-Tens facts and often uses them to solve multiplication problems. Make up a 2-digit by 3-digit multiplication

Stells [14]

Half Tens is a way of multiplying where we have to find the value of given numbers. First we double any 'one' of the two given numbers and multiply both to get an answer. Then we divide that answer by '2' to get the answer.

Lets take two numbers as 16 and 340

$16\times340=?$

Double the number 16

$32\times340=10880$

Now we will divide this by 2

$\frac{10880}{2}= 5440$

So, if we check $16\times340=?$ , it is 5440.

Similarly if we double the number 340, we get 680

Now, $16\times680=10880$

And 10880/2 = 5440

Hence, in both ways the answer is 5440.

6 0

3 years ago

Seven cards are drawn from an ordinary deck. In how many ways is it possible to draw (b) only 8's, 's and (c) no 's, 's an

elena-14-01-66 [18.8K]

Complete question :

Seven cards are drawn from an ordinary deck. In how mnat ways is it possible to draw (a) only 5s (b)only 8s, 9s, and 10s, (c) no 8s, 9s, and 10s (d) exactly 2 jacks or kings, (e) 5 spades and 2 hearts?

Answer:

0; 792 ; 100396 ; 30408224 ; 18643560 ;

Step-by-step explanation:

Number of cards in a deck = 52

Number of cards to be drawn = 7

Using combination:

nCr = n! ÷ (n-r)!r!

A.)

Number of 5's in a deck = 4

4C7 = 0

(B.)

only 8s, 9s, and 10s,

Number of 8, 9 and 10's = 4 *3 = 12

12C7 = 12! ÷ 5!7! = 792

(C)

no 8s, 9s, and 10s ;

Number of cards to select from = 52 - (3(4)) = 40C7 = 18643560

(D)

exactly 2 jacks or kings,

Number of jack or king in deck = 8 ; other 5 could be any of the rest : (52 - 8) = 44

8C2 * 44C5 = 28 * 1086008 = 30408224

(e) 5 spades and 2 hearts?

Number of spades = 13

Number of hearts = 13

13C5 * 13C2

1287 * 78 = 100396

4 0

3 years ago

Find a, b, and plz help me and don't spam me with links ​

Find a, b, and plz help me and don't spam me with links