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tester [92]
3 years ago
7

X + y = 0

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
4 0

Answer:

C

Step-by-step explanation:

given the 2 equations

x + y = 0 → (1)

5x + 3y = - 8 → (2)

Rearrange (1) expressing x in terms of y by subtracting y from both sides

x = - y → (3)

Substitute x = - y into (2)

5(- y) + 3y = - 8, that is

- 5y + 3y = - 8

- 2y = - 8 ( divide both sides by - 2 )

y = 4

Substitute y = 4 into (3) for corresponding value of x

x = - y = - 4

Solution is (- 4, 4 ) → C

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Fill the missing values to make the equations true.
taurus [48]
Logarithm properties:

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According to this, we can get:

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3 0
3 years ago
If g(x) = 4 square root of x then g(45) is
AlladinOne [14]
Hi,

So we have g(x) = 4√(x).  We're looking for g(45).  Think of it like this: whatever number is in the place of x in g(x), just place that number AS x.

Therefore, we have :
g(45) = 4√(45) ⇒ (4) × (√(45)) ⇒ (4)(3√(5)) = 12√(5).

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5 0
3 years ago
PLEASE HELP :(
IrinaK [193]

Answer:

the answer to this question is four cups

Step-by-step explanation:

the answer is four cups/scoops because if Zacks cup can hold one cup and it requires two cups to fill each birdfeeder and there are two of them, it should take him four scoops.

6 0
3 years ago
Pythagorean theorem. Appreciate the help with this question . Thank you very much who ever help with the question .
NikAS [45]

\textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=\stackrel{hypotenuse}{x}\\ a=\stackrel{adjacent}{30}\\ b=\stackrel{opposite}{40}\\ \end{cases} \\\\\\ x=\sqrt{30^2+40^2}\implies x=\sqrt{2500}\implies x=50

5 0
2 years ago
The volume of this triangular prism is 32 cubic inches. What is the value of d?
krek1111 [17]

Answer:

Divide the volume by the length of the prism to get the area of the face:

468/13 = 36 square yards.

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Multiply both sides by 2 to remove the 1/2:

72 = 9 x g

Divide both sides by 9 to find g:

g = 72 /9

g = 8 yards.

3 0
3 years ago
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