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3 years ago

Plz help I only hav 3 hours

Mathematics

1 answer:

pshichka [43]3 years ago

6 0

1/3 n = 4 + 11

1/3 n = 15

n = 15 * 3

n = 45

Answer

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Here's the deal. I give you a question, you give me an answer. I give you points and Brainliest if possible. You use the points

olga55 [171]

Answer:

f(x) = -(x-3)^2 + 4

Step-by-step explanation:

(h; k) are the coordinates of the vertex.

On the graph are (3, 4), therefore we have:

f(x) = a(x-3)^2 + 4

We have the x- intercept (1,0) -> x=1; y=0.

Substitute them into the equation:

0 = a(1 - 3)^2 + 4

0 = a(-2)^2 + 4

4a + 4 = 0 | -4

4a = -4 |-4

a = -1

So, we have the answer:

f(x) = -(x-3)^2 + 4

5 0

3 years ago

If A = (0, 0) and B = (6, 3), what is the length of ? A.7.73 units B.6.24 units C.5.20 units D.6.71 units

ExtremeBDS [4]

Given two points A(x₁,y₁) and B(x₂,y₂) the distance betwen these points will be:
dist(A,B)=√[(x₂-x₁)²+(y₂-y₁)²].

We have these points: A(0,0) and B(6,3); its distance will be:

dist(A,B)=√[(6-0)²+(3-0)²]
=√(6²+3²)
=√(36+9)
=√45 ≈ 6.71

Answer: D. 6.71 units.

5 0

3 years ago

Read 2 more answers

Solve de system by elimination. x-5y=3 4x-4y=12

Anit [1.1K]

If we multiply the top equation by -4 we can get rid of the x so:

-4x+20y=-12

4x-4y=12

Add these up

16y=0

Y=0

X=3

7 0

3 years ago

The equations x + 5 y = 10, 3 x minus y = 1, x minus 5 y = 10, and 3 x + y = 1 are shown on the graph below. On a coordinate pla

natita [175]

Answer:

The question is missing, so I will answer all the solution for each possible system of two equations.

Step-by-step explanation:

The equations

x + 5 y = 10 (red)

3 x - y = 1 (blue)

x - 5 y = 10 (green)

3 x + y = 1 (purple)

are shown in the picture atatched. The intersection between two lines is the solution of their system.

system:

x + 5 y = 10 (red)

3 x - y = 1 (blue)

solution: (0.938, 1.813)

system:

x + 5 y = 10 (red)

x - 5 y = 10 (green)

solution: (10, 0)

system:

x + 5 y = 10 (red)

3 x + y = 1 (purple)

solution: (-0.357, 2.071)

system:

3 x - y = 1 (blue)

x - 5 y = 10 (green)

solution: (-0.357, -2.071)

system:

3 x - y = 1 (blue)

3 x + y = 1 (purple)

solution: (0.333, 0)

system:

x - 5 y = 10 (green)

3 x + y = 1 (purple)

solution: (0.938, -1.813)

7 0

3 years ago

RUDIKE [14]

Option B) (x + 3)^2 − 5 is the correct answer

Step-by-step explanation:

Given expression is:

$x^2+6x+4$

We will solve eah expression in the options to chek which is equivalent to given expression

So,

A) (x + 3)^2 + 5

$(x + 3)^2 + 5 = x^2+6x+9+5 \\= x^2+6x+14$

NOT equivalent

B) (x + 3)^2 − 5

$(x + 3)^2 − 5 = x^2+6x+9-5\\= x^2+6x+4$

Equivalent

Hence,

Option B) (x + 3)^2 − 5 is the correct answer

Keywords: Equivalent expressions, polynomials

Learn more about polynomials at:

#LearnwithBrainly

5 0

3 years ago

Read 2 more answers