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2 years ago

8

Use calculator to decide whether each statement is true or false. It may be that a true statement will lead to results that diff

er in the last decimal place due to rounding error.
tan² 72° 25' + 1 = sec² 72° 25'

1 answer:

Bogdan [553]2 years ago

4 0

Answer: 72.416

Step-by-step explanation:

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Are positive and negative numbers the same?<br><br>TRUE or FALSE

andriy [413]

Answer:

false: positive and negative numbers are on two completely opposite sides of a number line, coordinate plane, etc. Just like 4 is different than 5, it is the same with positive and negative numbers

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2 years ago

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The collection of all input values is the ___ of the function ?

hichkok12 [17]

Answer:

Domain

Step-by-step explanation:

Input Values Form the Domain of the Function

Mathematicians call the set of all input values for a function its domain.

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2 years ago

I WOULD LOVE IF SOMEONE CAN ANSWER THIS QUESTION FOR ME!

postnew [5]

Answer:

32 cm^3

Step-by-step explanation:

The cube is 4 across by 4 high by 2 wide

4*4*2 = 32 cm^3

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3 years ago

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Given the quadratic equation <img src="https://tex.z-dn.net/?f=y%20%3D%202%28x%20-1%29%5E%7B2%7D%20%2B%208" id="TexFormula1" tit

Sunny_sXe [5.5K]

Answer:

Part 1) "a" value is $2$

Part 2) The vertex is the point $(1,8)$

Part 3) The equation of the axis of symmetry is $x=1$

Part 4) The vertex is a minimum

Part 5) The quadratic equation in standard form is $y=2x^{2}-4x+10$

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

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

where

(h,k) is the vertex of the parabola

if a > 0 then the parabola open upward (vertex is a minimum)

if a < 0 then the parabola open downward (vertex is a maximum)

The equation of the axis of symmetry of a vertical parabola is equal to the x-coordinate of the vertex

so

$x=h$

In this problem we have

$y=2(x-1)^{2}+8$ -----> this is the equation in vertex form of a vertical parabola

The value of $a=2$

so

a>0 then the parabola open upward (vertex is a minimum)

The vertex is the point $(1,8)$

so

$(h,k)=(1,8)$

The equation of the axis of symmetry is $x=1$

The equation of a vertical parabola in standard form is equal to

$y=ax^{2}+bx+c$

Convert vertex form in standard form

$y=2(x-1)^{2}+8$

$y=2(x^{2}-2x+1)+8$

$y=2x^{2}-4x+2+8$

$y=2x^{2}-4x+10$

see the attached figure to better understand the problem

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3 years ago

What is the perimeter of ABC?<br><br>Round each step to the nearest tenth.<br><br>

Pie

Answer:

0 + 1

______

i

= -1

Step-by-step explanation:

0 + 1

____

1

1

___

1

1 X i

______

i X i

1i

___

iX i

i

____

-1

= -1

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2 years ago

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