Can someone help me with this question plz thx :,)

Mathematics

1 answer:

Alenkinab [10]3 years ago

3 0

Answer:

43.35

Step-by-step explanation:

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Ray Of Light [21]

$Use\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\\sqrt{75}=\sqrt{25\cdot3}=\sqrt{25}\cdot\sqrt3=5\sqrt3\to\boxed{B)}$

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2 years ago

What is the equation of the line that passes through the point (4, 3) and is perpendicular to the line x + y = 4?

zimovet [89]

ANSWER

$y - x = - 1$

EXPLANATION

The required equation passes through:

(4,3) and is perpendicular to x+y=4.

Rewrite the given equation in slope-intercept form:

$y = - x + 4$

The slope of this line is -1.

The slope of the required line is perpendicular to this line, so we find the negative reciprocal of this slope.

$m= - \frac{1}{ - 1} = 1$

The equation of the line can be found using:

$y - y_1 = m(x - x_1)$

We substitute the slope and point to obtain:

$y - 3 = 1(x - 4)$

We simplify to get:

$y - 3 = x - 4$

$y - x = - 4 + 3$

The required equation is

$y - x = - 1$

5 0

3 years ago

5x-4y=-10 <br> -4x+5y=8<br> (Khan academy)

Yakvenalex [24]

Answer:

X = 10

Y = 48/5

Step-by-step explanation:

Your welcome.

3 0

3 years ago

Please smart people help me

Gekata [30.6K]

im not smart but i think the answer is x-6x (,-9)

4 0

3 years ago