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tatuchka [14]
3 years ago
12

Determine which graph represents a reflection across the x-axis of f(x) = 3(1.5)x.

Mathematics
2 answers:
Svetllana [295]3 years ago
7 0

Answer:

Option 2 is graph after reflection across x-axis.

Step-by-step explanation:

We have been given the function:

f(x)=3(1.5)^x

We have reflection rule along x-axis as:

(x,y)\rightarrow (x,-y)

Hence, the given function when reflected across x-axis becomes:

-y=3(1.5)^x

y=-3(1.5)^x

You can see the attachment for the graph of the function after reflection in the attachment.

Option 2 is graph after reflection across x-axis.

nalin [4]3 years ago
5 0
SECOND!!!!! Its the second one :)
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maksim [4K]

Answer:

Option C.

Step-by-step explanation:

Given information: In triangle ABC, ST║AC, SB=10 ft, BT=9 ft and CT=2.7 ft.

Triangle proportionality theorem: If a line segment parallel to a side of a triangle then the line segments divides the remaining sides proportionally.

Using triangle proportionality theorem we get

\dfrac{SA}{SB}=\dfrac{CT}{BT}

\dfrac{SA}{10}=\dfrac{2.7}{9}

On cross multiplication we get

9\times SA=2.7\times 10

9SA=27

Divide both sides by 9.

SA=3

The length of SA is 3ft.

Therefore, the correct option is C.

8 0
3 years ago
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a solution of trioxonitrate (v) acid contained 0.67g in 100cm³. 31cm³ of this solution neutralized 25cm³ of a sodium trioxocarbo
FinnZ [79.3K]

Answer:

0.67 / 100 : 31^3 : 31^3 / 25cm^3

x 10

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divide by 1000

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Ratio kg = 149.3 : 0.5

Step-by-step explanation:

Mole Ratio

The mole ratio compares the number of moles in a balanced equation.

This is the comparison between the coefficients in front of the chemical formulas.

If a formula lacks a coefficient, it is the same as saying there is 1 mole of that species.

Mole ratios are used to predict how much product a reaction forms or to determine how much reactant is needed to make a set amount of product.

Mole Ratio Units

Mole ratio units are either mole:mole or else it is a dimensionless number because the units cancel out. For example, it's fine to say a ratio of 3 moles of O2 to 1 mole of H2 is 3:1 or 3 mol O2: 1 mol H2.

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3 years ago
¿Se pueden aplicar las razones trigonométricas de ángulos fijos para resolver cualquier tipo de triangulo?
DerKrebs [107]

Answer:

Solo se puede usarlas con triángulos rectángulos (right triangles en ingles).

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4 years ago
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Ludmilka [50]

Answer:

20 feet

Step-by-step explanation:

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x^2 + y^2 = n^2

in this case

x= 16

y = 12

so substitute back into the equation

16^2 + 12^2 = n^2

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