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2 years ago

What are the correct justifications , listed in proper order?

Mathematics

2 answers:

Gnesinka [82]2 years ago

8 0

Answer:

A; Distributive Property, Pythagorean Identity, Double Angle Identity

Step-by-step explanation:

just took the test

Sergio039 [100]2 years ago

3 0

Answer:

4 5 6 7

Step-by-step explanation:

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Use the following function rule to find g(-w). <br> Simplify your answer.<br> g(b)=-10b+8<br> g(-w)=

4vir4ik [10]

Answer:

10w+8

Step-by-step explanation:

-10(-w)+8

10w+8

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2 years ago

How to solve 2X^2+Y^2 = X^2-Y^2

arlik [135]

$2x^2+y^2 = x^2-y^2\\\\
2x^2 - x^2 + y^2 + y^2 = 0\\\\
x^2 + 2y^2=0\\\\
x^2 = 0~~~\Longrightarrow~~~\boxed{x=0}\\\\
2y^2 = 0~~~\Longrightarrow~~~y^2 = 0~~~\Longrightarrow~~~\boxed{y=0}\\\\

$

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3 years ago

The function f(x) = –x2 + 20x – 75 models the profit from one customer, in dollars, a shop makes for printing photos, where x is

trasher [3.6K]

The function is graphed as shown below

Part A:

We use the formula $- \frac{b}{2a}$ to find the vertex of the function. A quadratic function of the form of $a x^{2} +bx+c$ and equating this form to the given function $- x^{2} +20x-75$ , we have
$b=20$ and $a=-1$ .

Substituting $a$ and $b$ into the vertex formula, we have
$x=- \frac{20}{2(-1)}=10$ , as shown in the graph

This calculation means that the highest profit is achieved when the number of photo printed equals to ten photos

Part B:

We can find solution to this equation by factorising

$- x^{2} +20x-75=0$
$-( x^{2} -20x+75)=0$
$x^{2} -20x+75=0$
$(x-5)(x-15)=0$
$x=5$ and $x=15$ , as shown in the graph

The two values means that the company makes no profit when they either produce 5 or 15 photos

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3 years ago

A highway map of Ohio has a coordinate grid superimposed on top of the state. Springfield is at point (1, –4) and Columbus is at

aniked [119]

Find the midpoint of (1,-4) and (7,1) to find the rest stop. To do this add the x values and divide by 2, then add the y values and divide by 2. (4,-1.5) is the midpoint.
To find the distance, use the distance formula then multiply the result by 5.38. The distance is 42 miles

8 0

3 years ago

Simplify the expression 2 × 36 − 24 ÷ 6

marin [14]

Answer:

Step-by-step explanation:

P- parentheses

E- exponential

M- multiplication

D- division

A- addition

S- subtraction

2 x 36 = 72

72 - 24 ÷ 6

24 ÷ 6 = 4

72 - 4 = 68

3 0

3 years ago

Read 2 more answers