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Westkost [7]
3 years ago
11

Solve this for most Brainly

Mathematics
1 answer:
Ede4ka [16]3 years ago
5 0

Answer:

1 - 22

2 -

- 4x {y}^{3}  - 6 {x}^{4}  {y}^{3}  + 7 {y}^{4}  - 8 {x}^{4}  {y}^{4}

3- ( x = -4)

4 - Irrational numbers

\sqrt{53}   \:  \:  \:  \:  \:  \sqrt{19}  \:  \:  \:  \: \pi

integers

0 \:  \:  \:  \:  \:  \frac{ - 12}{6}

rational

\frac{2}{3}  \:  \:  \:  \:   \frac{6}{45}

natural numbers 8

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How do you do this problem?
schepotkina [342]

check the picture below.


GH = -6 + 2(8) = 10.

6 0
3 years ago
3x + 2y = 14. X + y = 5. Work put the values of x and y
andrey2020 [161]

Answer:

x = 4 , y = 1

Step-by-step explanation:

3x + 2y = 14 → (1)

x + y = 5 → (2)

Multiplying (2) by - 2 and adding to (1) will eliminate the y- term

- 2x - 2y = - 10 → (3)

Add (1) and (3) term by term to eliminate y

x = 4

Substitute x = 4 into (2) and evaluate for y

4 + y = 5 ( subtract 4 from both sides )

y = 1

7 0
3 years ago
The price of an item has been reduced by 55%. The original price was $20. What is the price of the item now?
const2013 [10]

Answer:

answer 9

Step-by-step explanation:

if subtract 20$ by 55% you get 9

4 0
3 years ago
Angle x is such that sin x = a + b and cos x = a − b, where a and b are constants.
Mazyrski [523]

Answer:

Step-by-step explanation:

sin x=a+b

cos x=a-b

sin²x+cos²x=(a+b)²+(a-b)²=2a²+2b²

or 2a²+2b²=1

a²+b²=1/2 which is constant for all values of x

(ii)

\frac{\sin x}{\cos x}=\frac{a+b}{a-b}\\\tan x=\frac{a+b}{a-b}=2\\a+b=2a-2b\\b+2b=2a-a\\or a=3b

3 0
4 years ago
Read 2 more answers
After one customer buys 4 new tires, a garage recycling bin has 20 tires in it. After another customer buys 4 tires, the bin has
son4ous [18]
Its (24) 4×9=36. so (36 +24 =60) so there is 60 tires in the bin
8 0
3 years ago
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