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tia_tia [17]
3 years ago
11

I have 2 questions. Please help me with them. Thank you.

Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0
(x+8)^(2) + (y+9)^(2) = 169
(x+8)^(2) + (y+9)^(2) = 13^2

h = -8
k = -9
r = 13

answer
A. center (-8,-9)
radius = 13



--------------


(x-7)^2  + y^2 = 225
(x-7)^2  + y^2 = 15^2

h = 7
k = 0
r = 15

answer
B. center (7,0)
radius = 15
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Find x. Round to the nearest tenth if necessary.
snow_tiger [21]

Answer:

your answers are in the attachment

hope it helps...

Step-by-step explanation:

8 0
2 years ago
Write the standard form of the line that passes through the given points. include your work in your final answer. (-1, -3) and (
yan [13]

The standard form of a line passing through the points (-1, -3) and (2, 1) is <u>4x - 3y = 5</u>.

The slope of the given line, m = (1 - (-3))/(2 - (-1)) = (1 + 3)/(2 + 1) = 4/3.

Computed using the formula for the slope of a line, m = (y₂ - y₁)/(x₂ - x₁), when a line passes through the points (x₁, y₁) and (x₂, y₂).

The point intercept form of a line is <u>y - y₁ = m(x - x₁)</u> when the line passes through the point (x₁, y₁) and has the slope m.

Thus, the given line in the point intercept form can be written as:

y - 1 = (4/3)(x - 2).

The standard form of a line is ax + by = c.

To convert the point intercept form to the standard form, we do as follows:

y - 1 = (4/3)(x - 2),

or, 3(y - 1) = 3(4/3)(x - 2) {Multiplying both sides by 3},

or, 3y - 3 = 4x - 8 {Simplifying},

or, 8 - 3 = 4x - 3y {Rearranging},

or, 4x - 3y = 5 {Rearranging and simplifying}.

Thus, the standard form of a line passing through the points (-1, -3) and (2, 1) is <u>4x - 3y = 5</u>.

Learn more about equations of straight lines at

brainly.com/question/13763238

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6 0
2 years ago
The drama club sells sweatshirts for $9 dollars each to raise money for their club.
zheka24 [161]

Answer:

m=9n

Step-by-step explanation:

Linear equation, straight forward m=3n. Highlighted point is n=3 and m=9*3=27

5 0
3 years ago
A customer buys five cans of baked beans, four packets of brown sugar and two packets of biscuits from a supermarket.He gives th
Naily [24]
Can of baked beans = x 
packet of brown sugar = y
packet of biscuit = z

5x + 4y + 2z = 150 - 26 ⇒ 5x + 4y + 2z = 124 is the total cost of all items.

can of baked beans = x = 1/2 of z
packet of sugar = y = z - 3

5(z/2) + 4(z-3) + 2z = 124
5z/2 + 4z - 12 + 2z = 124
5z/2 + 6z = 124 + 12
2(5z/2 + 6z) = 2(136)
5z + 12z = 272
17z = 272
z = 16 cost of a packet of biscuit.

x = 1/2 of z = 16/2 = 8 cost of a can of baked beans
y = z - 3 = 16 - 3 = 13 cost of a packet of sugar

5x + 4y + 2z = 124
5(8) + 4(13) + 2(16) = 124
40 + 52 + 32 = 124
124 = 124

8(8) + 1(13) + 6(16) = 64 + 13 + 96 = 173 total cost on question 3.
7 0
3 years ago
What is the sum of the interior angles of the polygon shown below?
WARRIOR [948]

Answer:

n = 5

(n-2) X 180

3 x 180

540 degrees

pls mark as brainliest

5 0
2 years ago
Read 2 more answers
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