2 years ago

Determine the missing factor in x^2-81=(x+9)(n)

Mathematics

1 answer:

Debora [2.8K]2 years ago

3 0

The missing factor is (x-9).

You might be interested in

The volume of a right circular cone is 2,279.64 in cubed. If the height of the cone is 18 in, what is the diameter of the cone?

Aleksandr [31]

ANSWER

A. 22 in

EXPLANATION

The volume of a cone is calculated using the formula:

$Volume = \frac{1}{3} \times \pi {r}^{2} h$

It was given that: the volume is 2,279.64 in³

The height of the cylinder is also given as: h=18 in.

We substitute, the given values into the formula to get:

$2279.64= \frac{1}{3} \times (3.14) \times {r}^{2} \times 18$

$2279.64= 18.84 {r}^{2}$

${r}^{2} = \frac{2279.64}{18.84}$

${r}^{2} = 121$

We take positive square root to get;

$r = \sqrt{121}$

$r = 11in$

Therefore the diameter is 2(11) which is equal to 22 inches.

5 0

2 years ago

What is the mean, outlier & mean without outlier for 4; 4; 5; 6; 8; 9; 27

aleksley [76]

Answer:

the mean is 9.

Step-by-step explanation:

<h2>= <u>63</u></h2><h2> 7</h2><h2> 9 is the answer.</h2>

5 0

2 years ago

Find the value of x. <br><br> A. 10 <br> B. 15 <br> C. 20 <br> D. 25

Ira Lisetskai [31]

Answer:

(5x+13)+(3x+7)=180°

5x+3x=180°-7°-13°

8x=160°

x=160/8

x=20°

option C is correct

6 0

2 years ago

Two transformations are performed on a figure on a coordinate plane. The first transformation is translated 6 units up and 3 uni

Bess [88]

Answer:

The last answer choice

Step-by-step explanation:

This transformation doesn't not keep its congruent

7 0

2 years ago

Read 2 more answers

What is the fraction of 00.1

iren2701 [21]

00.1

1 divided by 10

1/10

one tenth

8 0

3 years ago

Read 2 more answers