What is the radius of the circle given by the equation below?

Answers

Answer 1

Answer: $x^2+18x+y^2+18y=-146 \n \n( x^2+18x + 81)+(y^2+18y+81)-81-81=-146\n \n(x+9)^2+(y+9)^2=-146+81+81\n \n(x+9)^2+(y+9)^2=-146+162\n \n(x+9)^2+(y+9)^2=16$

$This \ is \ in \ the \ general \ circle \ form : (x-h)^ 2+ (y-k)^2 = r^2, so: \n \n r^2=16 \n \nr=√(16)\n \nr=4 \n \n Answer : \ C. 4$

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3. Rewrite the expression as simply as you can:
3x + 11y - 2x - 4y

Answers

Answer:

x+7y

Step-by-step explanation:

First off, lets split the question into both x and y.

3x - 2x for the x

11y - 4y for the y

You can solve both of them to get x + 7y

3x - 2x = x

11y - 4y = 7y

Then, add them back up and get x + 7y

Answer:

x+7y

Step-by-step explanation:

3x + 11y -2x - 4y

(3x) + (11y) + (-2x) + (-4y)

(3x) + (-2x) = x

(11y) + (-4y) = 7y

3x + 11y -2x - 4y = x + 7y

One aftemoon 10 inches of snow falls in 1 1/4 hours. At this rate, how many inches of snow fall in 1 hour?inch(es) per hour

Answers

Answer:

Step-by-step explanation:

10 divided by 1 1/4 = 8

If these two trapezoids are similar, what is the measure of the missing angle?90°
1150
900
65°
Answer:
degree.

Answers

The measure of the missing angle in the similar trapezoid is 90°.

In the given trapezoid the measure of angles are 90°, 115°, 90° and 65°.

What are similar figures?

Similar figures mean when two figures are of the same shape but are of different sizes. In other words, two figures are called similar when they both have a lot of the same properties but still may not be identical.

Given that, the two trapezoids are similar

Here, the measure of the missing angle in the other trapezoid is 90°

Therefore, the measure of the missing angle in the similar trapezoid is 90°.

Learn more about the similar figure here:

brainly.com/question/20368229.

#SPJ2

the answer is would have to be 900

When rolling a number cube with sides labeled 1 through 6, what is the probability of rolling a number greater than 3? . . Express your answer in simplest form.. . . .

Answers

Probability of rolling a number greater than 3:
P ( A ) = m/n
m =3, (numbers 4, 5, 6)
n = 6, (numbers 1 to 6).
P ( A ) = 3/6 = 1/2 = 0.5

the probability is 1/2

Find the ratio of the following is175and210

Answers

The ratio of 175 and 210 in its simplest form is; 5:6

What Is a ratio

A ratio is the simplest form to which the quotient of two numbers can be represented.

The ratio of 175 and 210 can be evaluated by considering their HCF, highest common factor.

Their HCF is 35;

Hence, the ratio of 175 and 210 is ; 5:6

Answers

so if you solve for n
4n^2+3=7n
make into trinomial
subtract 7n from both sides
4n^2-7n+3=0
if we can factor this, then we can asume that the factors are equal to zero becase if
xy=0 then assume x and/or y=0 so

to factor an equation in ax^2+bx+c where a is greater than 1 then
b=t+z
a times c=t times z
to factor 4n^2-7n+3 you do
4 times 3=12
what 2 numbers multiply to get 12 and add to get -7
the numbers are -3 and -4 so
split up the -7
4n^2-4n-3n+3
group
(4n^2-4n)+(-3n+3)
undistribute
(4n)(n-1)+(-3)(n-1)
reverse distributive property
ab+ac=a(b+c)
(4n-3)(n-1)=0
set each to zero
4n-3=0
add 3 to both sides
4n=3
divide both sides by 4
n=3/4

n-1=0
add 1 to both sides
n=1

n=3/4 or 1

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