2 years ago

Solve the simultaneous equations 5x + y = -5 5x – 3y = 11

Mathematics

1 answer:

omeli [17]2 years ago

5 0

Answer:

Y=-4

X=-1/5

Step-by-step explanation:

In the figure

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List two numbers that are divisible by 9?

atroni [7]

Answer:

3, 6, 12, 15

Step-by-step explanation:

3/12= 4

3/9= 3

7 0

2 years ago

Please help!!!! I will mark brainlest

ipn [44]

I think it’s (-3, -1)

8 0

3 years ago

Evaluate each expression

choli [55]

Answer:

below

Step-by-step explanation:

c = 8 and d = -3

$c^{2} + d^{3} \\8^{2} + (-3)^{3} \\64 + (-27) \\64 - 27 \\37$

r = -3 and s = -4

$( r - s)^{3} + r^{2}\\(-3 -(-4))^{2} + (-3)^{2} \\(-3+4)^{3} + 9+ \\1^{3} + 9\\1 + 9 \\10$

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2 years ago

Find x on this special right triangle

Vinil7 [7]

Answer:

x=9.79

Step-by-step explanation:

firstly find the hypotenuse of the first triangle

sin45=12/h

sin45h/sin45=12/sin 45

h=16.9

after finding the hypotenuse you can then use it to find x by using tan

tan60=16.9/x

tan60x/tan60=16.9/tan60

x=9.79

I hope this helps!!

3 0

3 years ago

How to find the value of f(-3)

Evgesh-ka [11]

Answer:

plug in -3 where any x is in the equation. I reccomend doing it in parenthesis just so things work out nicely

Step-by-step explanation:

$x^2-x^3\\(-3)^2-(-3)^3\\(-3*-3)-(-3*-3*-3)\\(9)-(-27)\\9+27\\36$

3 0

3 years ago

Read 2 more answers