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3 years ago

This figure shows △XYZ . MZ is the angle bisector of ∠YZX .

Mathematics

1 answer:

frosja888 [35]3 years ago

3 0

$\frac{3.5}{x} = \frac{7}{11} \\ \\ 3.5*11 \\ 7*x \\ \\ \frac{7x}{7} = \frac{38.5}{7} \\ \\ x = 5.5$

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A store has 125 scientific calculators.

aleksley [76]

Answer:

Brand x: 80

Brand y: 45

Step-by-step explanation:

x + y = 125

20x + 15y = 2275

-20x - 20y = -2500

(+) 20x + 15y = 2275

--------------------------------

-5y = -225

y = 45

x + y = 125

x + 45 = 125

x = 80

Answer:

Brand x: 80

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3 years ago

Rewrite the equation below so that it does not have fractions.

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3 years ago

Select five numbers that have 7, 13, and 3 as prime factors.

MaRussiya [10]

Answer:

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Step-by-step explanation:

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2 years ago

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Which is the correct calculation of the y-coordinate of point A? 0 (0 - 0)2 + (1 - y2 = 2 O (0 - 1)² + (0- y2 = 22 (0-0)² + (1 -

dimaraw [331]

Answer:

The y-coordinate of point A is $\sqrt{3}$ .

Step-by-step explanation:

The equation of the circle is represented by the following expression:

$(x-h)^{2}+(y-k)^{2} = r^{2}$ (1)

Where:

$x$ - Independent variable.

$y$ - Dependent variable.

$h$ , $k$ - Coordinates of the center of the circle.

$r$ - Radius of the circle.

If we know that $h = 0$ , $k = 0$ and $r = 2$ , then the equation of the circle is:

$x^{2} + y^{2} = 4$ (1b)

Then, we clear $y$ within (1b):

$y^{2} = 4 - x^{2}$

$y = \pm \sqrt{4-x^{2}}$ (2)

If we know that $x = 1$ , then the y-coordinate of point A is:

$y = \sqrt{4-1^{2}}$

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The y-coordinate of point A is $\sqrt{3}$ .

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3 years ago

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Arte-miy333 [17]

Answer:

3) m = 18

4) p = 2

Step-by-step explanation:

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