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olasank [31]
3 years ago
15

X - 2y = 7 and 2x + 5y = -4 sorry more help but i need x and y again

Mathematics
2 answers:
Luden [163]3 years ago
3 0

Answer:

x = 3, y = -2

natka813 [3]3 years ago
3 0

Answer:

x=3 y=-2

Step-by-step explanation:

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It’s in the picture if u can help I will be thankful
Delicious77 [7]

Answer:

The length of LM,hypotenuse is 55.866ft

Step-by-step explanation:

Given that LN=39ft and MN=40ft so you can solve it using Pythogoras' Theorem:

side²+side² = hypo²

LN² + MN² = LM²

hypo² = 39²+40²

= 3121

LM = √3121

= 55.866ft (3d.p)

6 0
3 years ago
PLEASE help me. Brainliest!
fredd [130]

Answer:

Step-by-step explanation:

Last option is correct

x+x+x =3x

Red colour shows value is negative

-1-1 = -2

7 0
3 years ago
100 POINTS!! Express in radical form.
Vilka [71]

Answer:

27   4th root (x^3)

Step-by-step explanation:

(81x) ^ 3/4

We know (ab) ^c = a^c b^c

81 ^ (3/4)  * x^3/4

We can rewrite 81 as 3^4

(3^4)^(3/4)  * x^3/4

We know that a^b^c = a^ (b*c)

3^(4*3/4)  * x^3/4

3^(3) * x^3/4

27  * x^3/4

27   4th root (x^3)

3 0
3 years ago
Read 2 more answers
The sum of three times a number and seven is greater than four times the number
iris [78.8K]
3n + 7 ><span> 4n
-3n        -3n
7 > n
n</span> < 7
7 0
3 years ago
Is −14 &lt; −34? Use the number line to explain your answer.
valina [46]

Answer:

No, the reason is because -3/4 is farther away from 0 on the number line while -1/4 is closer to 0. Therefore, -1/4 > -3/4 is the correct answer

Step-by-step explanation:

8 0
4 years ago
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