All categories

3 years ago

20 POINTS Find the diameter?? Pls help I dont know what to do..

Mathematics

1 answer:

Akimi4 [234]3 years ago

7 0

Answer:

Diameter = 19.33

Step-by-step explanation:

Imaging a radius line from O to the endpoints of the 7. call this line R.

Label the part of the vertical line from O to the 90 degree intersection y.

Now you have a right triangle.

Using the Pythagorean theorem:

R² = 7² + y²

also

y = R - 3

substitute for y:

R² = 49 + (R-3)²

R² = 49 + R² - 6R + 9

simplify:

0 = 58 - 6R

6R = 58

R = 9.6667

Diameter = 2(9.6667) = 19.33

You might be interested in

A point with a positive x-coordinate and a negative y-coordinate is reflected over the -y axis which sentence describes the cord

marin [14]

Answer:

am just here for the points kid just letting you know so

5 0

2 years ago

The area of a rectangle is 24 square centimeters. The length (X), in centimeters of the rectangle is given by the equation x2 +

Allisa [31]

The length of the rectangle is 3 cm

<h3>Applications of Quadratic equations</h3>

From the question, we are to determine the value of the length of the rectangle

To find the length of the rectangle, we will determine the value of x in the given equation

The given equation is

$x^{2} + 5x =24$

This can be written as

$x^{2} +5x -24 =0$

Factorizing

$x^{2} +8x - 3x -24 = 0$

$x(x+8) -3(x+8)=0$

$(x-3)(x+8)=0$

Then,

$x-3 = 0$ OR $x + 8 = 0$

x = 3 OR x = -8

Since, the length of the rectangle cannot be negative, the value of x is 3.

Hence, the length of the rectangle is 3 cm.

Learn more on solving quadratic equations here: brainly.com/question/8649555

8 0

2 years ago

Which number can each term of the equation be multiplied by to eliminate the decimals before solving? –m + 0.02 + 2.1m = –1.45 –

Ugo [173]

Answer:

100

Step-by-step explanation:

The given equation is;

–m + 0.02 + 2.1m = –1.45 – 4.81m

The highest decimal places is 2.

This implies that, we must multiply each term of the equation by $10^2=100$ before solving in order to eliminate the decimal.

In that case the equation becomes;

–100m + 2 + 210m = –145 – 481m

Hence the number is 100

7 0

4 years ago

How would you write 12-^3 using a positive exponent?<br> 12^3<br> 12^0<br> 12^3/1<br> 1/12^3

Brums [2.3K]

Answer:

$\frac{1}{ {12}^{3} }$

Step-by-step explanation:

${12}^{ - 3} = \frac{1}{ {12}^{3} } \\$

6 0

3 years ago

The list below gives the location of friends who are scuba diving together.

Marianna [84]

According to the information, it can be inferred that the correct inequality is Mallory > Eva (option D).

<h3>How to identify who is closer to the surface of the water?</h3>

To identify who is closer to the surface of the water we must read the distance that each of the characters is.

In this case, the person closest to the surface is Eva, who is 5 feet from the surface.

Now we must identify which inequality corresponds to reality. In this case the inequality that is correct is:

Mallory > Eva

This inequality is correct because Mallory is further from the surface than Eva.

Learn more about inequality in: brainly.com/question/20383699

#SPJ1

6 0

2 years ago