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3 years ago

In the diagram, the measure of angle 9 is 85°.

Mathematics

1 answer:

Simora [160]3 years ago

6 0

Answer:

Angle 5 (corresponding angle)

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I need help with these 2 math problems 1) -3 3/8 x 6= 2) 7/9 x 6=

earnstyle [38]

1) -34 which is very simple
2) 4 2/3

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3 years ago

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What’s 9+10????????????????? ?

Aleks [24]

Answer:

Step-by-step explanation:

9+10=19

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3 years ago

Marsha wants to determine the vertex of the quadratic function f(x) = x2 – x + 2. What is the function’s vertex?

BaLLatris [955]

Answer:

$Vertex = (\frac{1}{2},\frac{7}{4})$

Step-by-step explanation:

Given

$f(x) = x^2 - x +2$

Required

The vertex

We have:

$f(x) = x^2 - x +2$

First, we express the equation as:

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

Where

$Vertex = (h,k)$

So, we have:

$f(x) = x^2 - x +2$

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

Take the coefficient of x: -1

Divide by 2: (-1/2)

Square: (-1/2)^2

Add and subtract this to the equation

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

$f(x) = x^2 - x +2$

$f(x) = x^2 - x + (-\frac{1}{2})^2+2 -(-\frac{1}{2})^2$

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

Expand

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

Factorize

$f(x) = x(x - \frac{1}{2})- \frac{1}{2}(x - \frac{1}{2})+2 -\frac{1}{4}$

Factor out x - 1/2

$f(x) = (x - \frac{1}{2})(x - \frac{1}{2})+2 -\frac{1}{4}$

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

$f(x) = (x - \frac{1}{2})^2+ \frac{8 -1 }{4}$

$f(x) = (x - \frac{1}{2})^2+ \frac{7}{4}$

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

$h = \frac{1}{2}$

$k = \frac{7}{4}$

Hence:

$Vertex = (\frac{1}{2},\frac{7}{4})$

8 0

3 years ago

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9.675,9.25,9.325,9.5 least to greatest

max2010maxim [7]

9.25, 9.325, 9.5, 9.675

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3 years ago

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Figure out the question

valentina_108 [34]

Answer part A:

-6°F

Answer part B:

-7,5°F

Step-by-step explanation:

A: 7-13= -6
B: 11-5= 6 ==> 6*(-1,25)= - 7,5

3 0

2 years ago