All categories

2 years ago

Find the center and radius of the circle: x2 + y2 - 8x – 12y + 43 = 0

Mathematics

1 answer:

MakcuM [25]2 years ago

4 0

Answer:

Center: (−4,6) Radius: 5

Step-by-step explanation:

You might be interested in

What is equivalent decimal for 0.85

Alex_Xolod [135]

Answer:

17/20

Step-by-step explanation:

0.85 = 85/100 = 17/20

The number 0.85 can be written using the fraction 85/100 which is equal to 17/20 when reduced to lowest terms.

5 0

2 years ago

Triangle congruence and similarity! (picture included)

skelet666 [1.2K]

Answer:

yes; SAS (Side Angle Side)

Step-by-step explanation:

if you divide all sides by three they come out as the same numbers as the left triangle and they are both the same type of triangle

8 0

2 years ago

Factorize the expression below pls help giving brainliest

vekshin1

Answer:

See answer below

Step-by-step explanation:

2b(2ab)² - a(2b²)² = XaY³(z - b)

$2b(2ab)(2ab) - a(2b^2)(2b^2) = XaY^3(z-b)$

$8a^2b^3 - 4ab^4 = XaY^3(z - b)$

$4ab^3(2a-b) = XaY^3(z - b)$

X = 4

y = b

z = 2a

7 0

2 years ago

AB ← → is tangent to circle O at point A. If m∠AOB = 55°, what is m∠ABO ?

AlladinOne [14]

A tangent forms a right angle with the centre of circle at the point it touches the circumference. i.e. OAB = 90 degrees
If AOB = 55 degrees, then ABO = 90 - 55 = 35 degrees

3 0

3 years ago

Read 2 more answers

210 balloons are filled for a reception this is 70% of the entire number balloons purchased which equation can be used to find t

Yuri [45]

Answer:

300 balloons.

Step-by-step explanation:

Given:

210 balloons are filled for a reception this is 70% of the entire number balloons purchased.

Question asked:

Which equation can be used to find the total number of balloons purchased ?

<u>Solution:</u>

Let total number of balloons purchased = $x$

70% of the number of balloons purchased = 210

$\frac{70}{100} \times x=210\\ \\ \frac{7x}{10} =210\\ \\ By\ cross\ multiplication\\ \\ 7x=210\times10\\ \\7x=2100\\\\ By\ dividing\ both\ sides\ by\ 7\\ \\ \frac{7x}{7} =\frac{2100}{7} \\ \\ x=300$

Therefore, total number balloons purchased was 300.

3 0

3 years ago