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Nadusha1986 [10]
3 years ago
14

8x-2y=-26 ; 2x+5y=-23

Mathematics
1 answer:
inna [77]3 years ago
4 0
Whats the question? There is no question.
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H e l p. P l e a s e e e
horrorfan [7]
Let's choose 43° to be our angle. We know the opposite, and want to know the hypotenuse. Sine is the trig. we use for opposite over hypotenuse. 
sinθ = opposite/hypotenuse
sin(43)=27/x
We want to isolate <em>x</em>, so that looks like:
x = 27/sin(43)
Therefore, the value of x is 27/0.682 or ≈39.589 or F
4 0
3 years ago
Read 2 more answers
Which expression is equivalent to 20?
DaniilM [7]

Answer:

C. 4 X (3 + 8 – 6)

Step-by-step explanation:

3 + 8 = 11

11 - 6 = 5

5 x 4 = 20

8 0
3 years ago
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How do you decide if a decimal is a rational​ number?
Bogdan [553]
You decide if it has a pattern if it is a repeating pattern then it is a rational number decimal however if it a decimal with no pattern it is irrational
6 0
3 years ago
The solution to an inequality is (–∞, 6.5]. Is 6.5 a solution to the inequality? Explain your answer. The solution includes numb
Korvikt [17]

Answer:

Because a bracket is used, the solution includes 6.5

The solution includes numbers from negative infinity to 6.5

Step-by-step explanation:

we know that

If the solution for an inequality is (–∞, 6.5]

then

x\leq 6.5

The solution is all real numbers less than or equal to 6.5

so

Because a bracket is used, the solution includes 6.5

The solution includes numbers from negative infinity to 6.5


7 0
3 years ago
Read 2 more answers
Find the ratio to its lowest 9cm to 36cm​
abruzzese [7]

Answer:

1:4 or 1/4

Step-by-step explanation:

9 cm : 36 cm

They both can be divided by 9 so,

9 ÷ 9 : 36 ÷ 9

= 1 : 4

Hope this helps

3 0
3 years ago
Read 2 more answers
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