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dusya [7]
2 years ago
6

Add. (1+7x3−x2)+(x3+2+2x2) Express the answer in standard form. Enter your answer in the box.

Mathematics
2 answers:
Elis [28]2 years ago
8 0

Answer:

8x^3+x^2+3

Step-by-step explanation:

In order to solve this you just have to put together the numbers witht the same base and exponent and then you just add and withdraw, and you can do it like this:

""7x^3-x^2+1\\+x^3+2x^2+2\\\\------\\8x^3+ x^2+3

So the answer would be :8x^3+x^2+3

Juli2301 [7.4K]2 years ago
6 0
The answer to the question

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M= 400÷ 4b
b= 100 stamps
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1 year ago
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Write an exponential function in the form y<br> and (3,72).<br> ab" that goes through points (0,9)
Vikentia [17]

Answer:

y=9 ( {2}^{x} )

Step-by-step explanation:

Let the exponential function be

y = a {b}^{x}

We substitute (0,9) to get:

9 = a {b}^{0}

9 = a(1)

a = 9

The equation now becomes:

y = 9 {b}^{x}

We substitute (3,72) to get:

72 =9  {b}^{3}

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The equation is therefore

y=9 ( {2}^{x} )

3 0
2 years ago
The scale factor of a room for a scale drawing is 2.3. The actual length of a wall in the room is 46 feet and the actual width o
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Answer:

There's two ways to solve this.

Step-by-step explanation:

First way:

Let's divide the width and length by 2.3.

46÷2.3=20

69÷2.3=30

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600 ft²

Second Way:

Let's find the area of the actual room.

46×69

3,174 ft²

Let's find the scale drawing squared.

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3,174÷5.29

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There are a total of 9 dogs
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What is the exact value of the cos F?
Galina-37 [17]

Answer:

cos(F) = 9/41

Step-by-step explanation:

The triangles are similar, so you know that ...

... cos(D) = cos(A) = 40/41.

From trig relations, you know ...

... cos(F) = sin(D)

and

... sin(D)² +cos(D)² = 1

So ...

... cos(F) = sin(D) = √(1 -cos(D)²) = √(1 -(40/41)²) = √(81/1681)

... cos(F) = 9/41

_____

The ratio for cos(A) tells you that you can consider AB=40, AC=41. Then, using the Pythagorean theorem, you can find BC = √(41² -40²) = √81 = 9.

From the definition of the cosine, you know cos(C) = BC/AC = 9/41. Because the triangles are similar, you know

... cos(F) = cos(C) = 9/41

7 0
2 years ago
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