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3 years ago

What is the value of the x-intercept for the graph of 4x-5y=40?

Mathematics

1 answer:

Crank3 years ago

6 0

I believe its 4/5 because when you isolate y, you have to divide 5 and 4 but you Can just leave it in its decimal form.

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What is (−3.2)⋅1.7 multipluied

Natalka [10]

Answer:

-5.44

Step-by-step explanation:

multiply add negative sign

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2 years ago

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Alex17521 [72]

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2 years ago

Find the perimeter of ABC with vertices A (1,-6), B (1,-3),<br> and C (-4,-6).

Crazy boy [7]

Answer:

$p = 8 + \sqrt{34} = 13.83095...$

Step-by-step explanation:

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5 0

2 years ago

3<br>Find the value of a <br>in the equation,(3+4√3)(2-a√3)=-18+2√3

ankoles [38]

Given:

The equation is:

$\left(3+4\sqrt{3}\right)\left(2-a\sqrt{3}\right)=-18+2\sqrt{3}$

To find:

The value of a.

Solution:

We have,

$\left(3+4\sqrt{3}\right)\left(2-a\sqrt{3}\right)=-18+2\sqrt{3}$

On simplification, we get

$(3)(2)+(4\sqrt{3})(2)+(3)(-a\sqrt{3})+(4\sqrt{3})(-a\sqrt{3})=-18+2\sqrt{3}$

$6+8\sqrt{3}-3a\sqrt{3}-4a(3)=-18+2\sqrt{3}$

$6+8\sqrt{3}-3a\sqrt{3}-12a=-18+2\sqrt{3}$

$(6-12a)+(8-3a)\sqrt{3}=-18+2\sqrt{3}$

On comparing both sides, we get

$6-12a=-18$

$-12a=-18-6$

$a=\dfrac{-24}{-12}$

$a=2$

And,

$8-3a=2$

$-3a=2-8$

$a=\dfrac{-6}{-3}$

$a=2$

Therefore, the value of a is 2.

3 0

2 years ago

PLEASE HELP!! WILL MARK BRAINLIEST!!!

Licemer1 [7]

Answer:

Look Down

Step-by-step explanation:

1) x=9

2) x=12

3) x=12

4) x=12

5) x=11

6) x=11

4 0

2 years ago