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VMariaS [17]
3 years ago
13

Write an expression to represent the perimeter of 12a, 6a+8, 10a-4, 6a+8

Mathematics
1 answer:
Alexxx [7]3 years ago
8 0

Answer:

34a + 12

Step-by-step explanation:

12a + 6a + 8 + 10a - 4 + 6a + 8

combine like terms

12a + 6a + 10a + 6a

and 8 + 8 - 4

34a + 12

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Select the correct answer from each drop-down menu.
vodomira [7]

Answer:

f(x) approaches positive infinity.

g(x) approaches negative infinity.

the y-intercept of f(x) is less than the y-intercept of g(x).

Step-by-step explanation:

the highest power of x in f(x) is 3, and it has a positive sign. so, the bigger x the more the x³ part will dominate.

therefore, with x going to positive infinity, also f(x) goes to positive infinity.

the graph of g(x) clearly dives down never to come back up or flatten out. so, with x going to positive infinity, g(x) goes to negative infinity.

the y-intercept of f(x) = f(0).

that means the functional value when x=0.

so, for x=0 this means

y = 2×0³ - 3×0² + 5×0 + 7 = 7

the graph of g(x) shows that g(0) is 8.

so f(0) is less than g(0).

3 0
3 years ago
A) x = 8 <br>B) x = 9<br>C) x = 10<br>D) x = 9.3
wlad13 [49]

A

Since T is the midpoint of PQ then PT = TQ, hence

6x + 4 = 52 ( subtract 4 from both sides )

6x = 48 ( divide both sides by 6 )

x = 8 → A



6 0
3 years ago
en un triangulo rectangulo la hipotenusa es 8.1cm y el lado opuesto del angulo"X" es 6.4cm .CALCULAR X
saw5 [17]

Answer:

x = 52.2 degrees

Step-by-step explanation:

In this question, we are to

calculate the value of the angle x

Now the first thing to identify is that what we have is a right angled triangle as one of the angles is 90 degrees

This means that we can employ the use of trigonometric identities to calculate whatever we want to calculate.

The question now is which trigonometric identity is the correct one to use

To answer this, we need to be sure of the sides we were given. Looking at the diagram we have one side facing the 90 degrees angle and the other side facing the angle x itself.

The one facing the angle given is the opposite while the one facing the angle 90 is the hypotenuse

So the trigonometric identity to use is the one that links the opposite and the hypotenuse

This is the sine

mathematically;

sine of an angle = length of opposite/length of hypotenuse

In this case

sine x = 6.4/8.1

sine x = 0.7901

Thus;

x = arc sin 0.7901

x = 52.2 degrees

7 0
4 years ago
Which expression represents the product of unknown number and 19?
Nina [5.8K]
It would be 19x because it is the same as 19 times x.
4 0
4 years ago
Read 2 more answers
Part D
Assoli18 [71]

Answer:

BD and BE are tangents to the circle

Step-by-step explanation:

Given

See attachment

Required

What does BD and BE represent?

From the attachment, we have:

\angle BDA = 90^\circ

\angle BEA = 90^\circ

Radii = AD\ and\ AE

The measure of angles between a tangent and the radius of a circle is always 90^\circ\\

So, because \angle BDA = 90^\circ and AD is a radius, then BD is a tangent to circle.

Similarly,; \angle BEA = 90^\circ and AE being a radius implies that BE is a tangent to circle.

4 0
3 years ago
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