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nalin [4]
2 years ago
15

Is (–28, 92) a solution to the equation y = 92?

Mathematics
1 answer:
lesya692 [45]2 years ago
5 0

Answer:

yes

Step-by-step explanation:

the second number in a set of parenthesis is the y value and the number in the parenthesis is 92 which makes y=92 true

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A chord is 15 cm long. It is 9 cm from the center of the circle. What is the radius of the circle?
irakobra [83]

Answer:

<h2>11.72cm</h2>

Step-by-step explanation:

Given a chord of distance of 15cm, if it is 9cm from the center of a circle, this means that the 9cm length will be projecting from the centre of the circle perpendicular to the chord and passing through its centre.

Since the radius of a circle is a line that is drawn from the centre of a circle to ts circumference, the set up will form a right angles triangle within the circle with the hypotenuse as the radius and the other two sides as the opposite and adjacent respectively. Using the Pythagoras theorem to get the length of the radius (hypotenuse);

hyp² = opp² + adj²

Let the opposite be the 9cm length

Adjacent will be half of the chord length = 15/2 = 7.5cm

Substituting this values into the formula we will have;

hyp² = 9² + 7.5²

hyp² = 81+56.25

hyp² = 137.25

hyp² = √137.25

hyp = 11.72

<em></em>

<em>Hence the radius of the circle is approximately 11.72 cm long</em>

5 0
2 years ago
Ne total land area of the United States is about 3,483,511 square miles more than
Vlad1618 [11]

Answer:

3,537,438 square miles of total land area in the U.S.

Step-by-step explanation:

3,483,511 + 53,927 = U.S.

3,537,438 square miles of total land area in the U.S.

8 0
3 years ago
How do you write 2.8 × 10^5 in standard form?
Law Incorporation [45]

Answer:

280,000

Step-by-step explanation:

10^5=100,000

2.8 x 100,000=280,000

5 0
3 years ago
How do you solve this <br> It’s called multi step equations plz help me
dangina [55]

Step-by-step explanation:

Add 8n to both sides to get

8n-67 = 5

then add 67

8n = 5+67 = 72

divide by 8

n = 9

5 0
2 years ago
Manny collected 4 times as many shells than Cameron together the collected 40 how many shells did manny collect jdhhtfhkjgddyjjh
Fantom [35]

1) Make an equation:

4x + x = 40

Where x represents the unknown amount (the number of shells)

2) Solve for x

5x = 40

Combine the x's

x = 8

Divide 40 by 5 to get X alone

3) Answer:

Manny collected 32 seashells, while Cameron only collected 8

6 0
2 years ago
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