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Bess [88]
2 years ago
10

Factorise 2xy-6td-4(xy-9td) please explain ​

Mathematics
1 answer:
morpeh [17]2 years ago
7 0

-2xy+30td

Step-by-step explanation:

2xy-6td-4(xy-9td)

2xy-6td-4xy+36td

2xy-4xy-6td+36td

-2xy+30td

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Reptile [31]

Answer:

(9.37, 17.7) ; (14.10, 19.42); (20.8, 22.3)

Step-by-step explanation:

For the first picture :

The missing angle :

180 - (32 + 90)

180 - (122) = 58°

To obtain the length of side x:

From ptthagoras:

Tan58° = opposite / Adjacent

1.6003345 = 15 / x

x = 15 / 1.6003345

= 9.37

y = sqrt(15^2 + 9.37^2)

y = sqrt(312.7969)

y = 17.7m

2)

Missing angle :

From ptthagoras :

Sin54° = opposite / hypotenus

0.8090169 = y/ 24

y = 0.8090169 * 24

y = 19.42

x = sqrt(24^2 - 19.42^2)

x = sqrt(198.8636)

x = 14.10

3)

Sin21° = opposite / hypotenus

0.3583679 = 8 /y

y = 8 / 0.3583679

y = 22.3

x = sqrt(22.3^2 - 8^2)

x = sqrt(433.29)

x = 20.8

7 0
3 years ago
All of the following expressions have the same value, except . . .
miss Akunina [59]

Answer: -3/7- 4/7

Step-by-step explanation:

7 0
3 years ago
Line segment AB is shown on a coordinate grid:
Lady_Fox [76]

Answer:

a'b' and ab are the same length

Step-by-step explanation:

they are both four squares long

7 0
2 years ago
Which of these has a sum of 1 19/30 ?
nata0808 [166]
<h3>Answer:</h3>

4/5+5/6  

Step-by-step explanation:

4/5+5/6=1 19/30

not

  1. 49/16+49/14  
  2. 24/17+25/13  
  3. 98/45+98/15

hope this helps u

3 0
3 years ago
Read 2 more answers
What is the domain of the relation graphed below? domain: {–5, –4, –3, –2, 0, 1, 2, 3, 4, 5} domain: {–3, –2, 0, 1, 4} domain: {
MAXImum [283]

Answer:

cross from bothsides

Step-by-step explanation:

5 0
2 years ago
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