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yuradex [85]
3 years ago
7

If 9 - X= 2, what does x equal?

Mathematics
1 answer:
valkas [14]3 years ago
4 0

Answer:

x=7

Step-by-step explanation:

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-17=x-15<br> I'm stuck so can someone help
Strike441 [17]

Answer:

-2

Step-by-step explanation:

-2-15

-2 +(-15)

-17

8 0
3 years ago
Read 2 more answers
Identify the vertex, axis of symmetry, minimum or maximum, domain, and range of the function f(
alekssr [168]

Identify the vertex, axis of symmetry, minimum or maximum, domain, and range of the function ()=−(+)^−

<em><u>Answer:</u></em>

vertex = (-4, -5)

Axis of symmetry = -4

use the (-4, -5) to find the minimum value

Domain = ( - \infty, \infty ) , [ x | x\ is\ real ]\\\\Range = [ -5, \infty ), y\geq -5

<em><u>Solution:</u></em>

Given function is:

f(x) = (x+4)^2 - 5

The equation in vertex form is given as:

y = a(x-h)^2+k

Where, (h, k) is constant

On comparing give function with vertex form,

h = -4

k = -5

Vertex is (-4 , -5)

Axis of symmetry : x co-ordinate of vertex

Thus, axis of symmetry = -4

The coefficient of x^2 is positive in given function.

Thus the vertex point will be a minimum

Minimum\ value = f(\frac{-b}{a})

f(x) = x^2 + 8x + 16 - 5\\\\f(x) = x^2 + 8x + 11

f(x) = ax^2+bx+c

On comparing,

a = 1

b = 8

x = \frac{-b}{2a} = \frac{-8}{2 \times 1} = -4

f(-4) = (-4)^2 + 8(-4) + 11 = 16 - 32 + 11 = -5

Thus, use the (-4, -5) to find the minimum value

Domain and range

f(x) = (x+4)^2 - 5

The domain is the input values shown on the x-axis

The range is the set of possible output values f(x)

Therefore,

Domain = ( - \infty, \infty ) , [ x | x\ is\ real ]\\\\Range = [ -5, \infty ), y\geq -5

4 0
2 years ago
Consider the equation 2x+8y=12
rusak2 [61]
For a you have to solve 2 solutions , first 2x=12
6=x then you plug that back in, 12+8y=12
8y=0
y=0
(6,0)

3 0
3 years ago
over the weekend Mario rode 43 miles. On Sunday he rode 3 miles more than 2/3 his distance on Saturday. How many miles did he ri
Ierofanga [76]
X+ (2x/3 +3) = 43
3x + 2x + 9 = 43
5x + 9 = 43
5x = 34
x =  \frac{34}{5}
8 0
3 years ago
Solve each equation for x. 4(x-b)=x
elixir [45]
Im guessing that it is 5 but then again dont trust me XD

5 0
3 years ago
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