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3 years ago

Please help, WILL MARK BRILLIANT! Is the relationship shown by the data linear? If so, model the data with an equation

Mathematics

1 answer:

Keith_Richards [23]3 years ago

7 0

Hi...the answer is b.. I would recommend plot graph and find the gradient.... then use the point formula

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200% of 15 is what number

IrinaK [193]

Answer:

=200/100 ×15

=2×15

=30

Hope it helps...

7 0

3 years ago

Finding the x intercepts and the vertex of a parabola

Slav-nsk [51]

Features of a Parabola

The equation of a parabola can be written as:

$undefined$

4 0

1 year ago

Solve for x in the equation x squared + 2 x + 1 = 17.

Papessa [141]

Answer:

$x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\$

Step-by-step explanation:

given equation

$x^2 +2x +1 = 17$

subtracting 17 from both sides

$x^2 +2x +1 = 17\\x^2 +2x +1 -17= 17-17\\x^2 +2x - 16 = 0\\$

the solution for quadratic equation

$ax^2 + bx + c = 0$ is given by

x = $x = -b + \sqrt{b^2 - 4ac} /2a \\\\and \ \\-b - \sqrt{b^2 - 4ac} /2a$

________________________________

in our problem

a = 1

b = 2

c = -16

$x =( -2 + \sqrt{2^2 - 4*1*-16}) /2*1 \\x =( -2 + \sqrt{4 + 64}) /2\\x =( -2 + \sqrt{68} )/2\\x = ( -2 + \sqrt{4*17} )/2\\x = ( -2 + 2\sqrt{17} )/2\\x = - 1 + \sqrt{17}\\and\\\\x = - 1 - \sqrt{17}\\$

thus value of x is

$x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\$

3 0

3 years ago

Evaluate the expression below.

o-na [289]

Answer:

Step-by-step explanation:

Use:

|a| = a for a ≥ 0 or |a| = -a for a < 0

PEMDAS:

P Parentheses first

E Exponents

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

========================================

|8 - 7| · 4 + 3(-1)

= |1| · 4 - 3

= 1 · 4 - 3

= 4 - 3

= 1

6 0

3 years ago

Read 2 more answers

The algebraic expression for "the quotient of 73 and x" is

lyudmila [28]

Answer

it could be 73/x

Step-by-step explanation:

3 0

3 years ago