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3 years ago

10

Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!

1 answer:

Alex17521 [72]3 years ago

3 0

A. subtract the bottom equation from the top equation

Step-by-step explanation:

The elimination method for solving systems of linear equations uses the addition property of equality. You can add the same value to each side of an equation. So if you have a system: x – 6 = −6 and x + y = 8, you can add x + y to the left side of the first equation and add 8 to the right side of the equation.

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X+3Y=6 turned into slope-intercept form

GarryVolchara [31]

Y=-1/3x+2

Use photomath app

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3 years ago

an architect wants to build three similar triangles such that the ratio of the middle triangle. The smallest one has side length

vampirchik [111]

Answer: 15

<u>Step-by-step explanation:</u>

small: 5 12 13

middle: __ 36 39

large: 45 108 117

Notice that to get from the small to the large, multiplied by 9

5(9) = 45 12(9) = 108 13(9) = 117

That is because the sides are proportional $\dfrac{5}{45}=\dfrac{12}{108}=\dfrac{13}{117}\rightarrow\dfrac{1}{9}$

To get from small to middle, multiply by 3

5(3) = 15 12(3) = 36 13(3) = 39

To solve it using proportions:

$\dfrac{5}{x}=\dfrac{12}{36}\\\\\\\text{Cross Multiply and solve for x:}\\5(36)=12x\\\\\dfrac{5(36)}{12}=x\\\\5(3)=x\\\\\large\boxed{15}=x$

7 0

3 years ago

Solve: 0 <img src="https://tex.z-dn.net/?f=%5Cleq" id="TexFormula1" title="\leq" alt="\leq" align="absmiddle" class="latex-formu

Salsk061 [2.6K]

$\huge{ \mathrm{ \underline{ Answer }}}࿐$

$6 \sin(x) - 3 \sqrt{2} = 0$

$6 \sin(x) = 3 \sqrt{2}$

$\sin(x) = \dfrac{3 \sqrt{2} }{6}$

$\sin(x) = \dfrac{ \sqrt{2} }{2}$

$\sin(x) = \dfrac{1}{ \sqrt{2} }$

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6 0

3 years ago

I only need the answer to question B

nalin [4]

Answer:

x=5

y=1

Step-by-step explanation:

The substitution method is considered easier because of its simplification.

2x-3y=7 (1)

x+2y=7 (2)

considering equation (2),

x = 7 - 2y (3)

using the value of "x" in (1)

2 (7-2y) - 3y=7

14 - 4y- 3y = 7

14 - 7y = 7

7y = 14 - 7

7y = 7

y = 1 (4)

substituting this value of "y" in (3)

x = 7- 2(1)

x = 5

3 0

3 years ago

WILL MARK BRAINIEST! 25 POINTS! What is 2^4/3 equal to? ∛8 ²√8 ∛16 ²√16 Please show work, i need to understand this

Mariana [72]

Answer:

∛16

Step-by-step explanation:

2^4/3

2^4 = 16

Then 16^1/3

∛16

4 0

3 years ago

Read 2 more answers