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3 years ago

Matt had 60 questions correct on a Percent's Chapter Test that had 150 one-mark questions.

Mathematics

1 answer:

WARRIOR [948]3 years ago

7 0

60/150 = 40%

Hope this helps :D

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Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. 8cotθ + 3 = 5

galina1969 [7]

Answer:

θ = 76°

Explanation:

The given equation is:

8 cotθ + 3 = 5

8 cotθ = 5-3

8 cotθ = 2

cot θ = $\frac{2}{8} = \frac{1}{4}$

Now, we find θ

We know that the cot function is the inverse of the tan function.

The tan of an angle is positive in the first and third quadrants, therefore, the cot will be positive in the first and third quadrants as well

Now, we are given the condition:

0° ≤ x ≤ 90°

Therefore, we know for sure that our angle is in the first quadrant

θ = cot⁻¹( $\frac{1}{4}$ ) = 75.96° = 76° to the nearest degree

Hope this helps :)

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4 years ago

What number is 1000 larger than 1000

Nata [24]

Answer:

2000

Step-by-step explanation:

Increase 1000 by 1000 in addition.

Modeled in an equation, the situation is 1000 + 1000.

1000 + 1000 = 2000

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3 years ago

842 rounded to the nearest ten

g100num [7]

Answer:

842 rounded to the nearest ten is 840

Step-by-step explanation:

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3 years ago

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|x|= 4 how to put it in a number line?

Alik [6]

Answer:

point on 4 and -4

Step-by-step explanation:

IxI = 4can either be 4 or -4

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3 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:

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

$y = \sqrt{3}$

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

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3 years ago