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3 years ago

Subtract (8x^9+6)-(-7x^9)

Mathematics

1 answer:

Rainbow [258]3 years ago

6 0

15x^9+6 is the answer

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Solve the system of equations:

Triss [41]

Answer: C. (-1, -4) and (4, 6)

Step-by-step explanation:

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3 years ago

HELP PLEASE?????????????????

Yakvenalex [24]

It’s d the students

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2 years ago

Which quadratic function has Vertex (-1,4) and passes through (4,19) <br> HELP

hichkok12 [17]

Answer:

$f(x)=\frac{3}{5}(x+1)^2+4$

Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

$f(x)=a(x-h)^2+k$

Where (h,k) is the vertex.

It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

$f(x)=a(x+1)^2+4$

The parabola also passes through (4,19) hence it must satisfy its equation.

$19=a(4+1)^2+4$

$19-4=a(5)^2$

$15=25a$

We divide both sides by 25 to get:

$a=\frac{15}{25}= \frac{3}{5}$

Hence the quadratic function is:

$f(x)=\frac{3}{5}(x+1)^2+4$

6 0

3 years ago

Find s(20) for the sequence s(n)=5n-2,ne {1 2, 3,... }

zavuch27 [327]

Answer:

Step-by-step explanation:

S(20)=

5*20-2=100-2=98

3 0

3 years ago

What is the equation of the line parallel to the given line with an X intercept of 4

mixas84 [53]

You haven't shared the given line, so all I can do here is to invent a line and then show you how to write the equation of a new line which is parallel to mine and which has an x-intercept of 4.

My invented line: y = (2/3)x + 3

The new line MUST have the same slope: m = 2/3.

Then y = mx + b becomes y = (2/3)x + b. Find the x-intercept by setting y = 0 and solving for x: (2/3)x = 0 - b. Now replace x with 4 and find b:

-b = (2/3)(4) = 8/3. Then b = -8/3, and the new line is

y = (2/3)x - 8/3.

3 0

3 years ago

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