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Nataly [62]
3 years ago
7

What is the value of the expression 3.2(2.3)−4.8

Mathematics
2 answers:
Anna71 [15]3 years ago
8 0
It is 2,56 i think but i dont completely know thoe


weqwewe [10]3 years ago
7 0
First Multiply 3.2 times 2.3 which would equal 7.36. After that subtract 4.8 from 7.36 which would equal 2.56. Final Answer:  2.56
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Find area, round to nearest tenth
Gnom [1K]

Answer:

  160 in²

Step-by-step explanation:

The formula for the area of a triangle is ...

  A = 1/2bh . . . . base length b, height h

Here, the triangle has a base length of 32 in, and a height of 10 in. Its area is ...

  A = 1/2(32 in)(10 in) = 160 in²

3 0
2 years ago
Suppose that we don't have a formula for g(x) but we know that g(3) = −1 and g'(x) = x2 + 7 for all x.
Sliva [168]

Answer:

  • g(2.95) ≈ -1.8; g(3.05) ≈ -0.2
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Step-by-step explanation:

(a) The linear approximation of g(x) at x=b will be ...

  g(x) ≈ g'(b)(x -b) +g(b)

Using the given relations, this is ...

  g'(3) = 3² +7 = 16

  g(x) ≈ 16(x -3) -1

Then the points of interest are ...

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  g(3.05) ≈ 16(3.05 -3) -1 = -0.2

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(b) At x=3, the slope of the curve is increasing, so the tangent lies below the curve. The estimates are too small. (Matches description A.)

4 0
3 years ago
I really need the answers for 6-8
Yuliya22 [10]

Answer:

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3 years ago
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valentinak56 [21]

Answer: 28 in.

Step-by-step explanation:

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7 0
3 years ago
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BabaBlast [244]

Answer:

Choice D is correct

Step-by-step explanation:

The eccentricity of the conic section is 1, implying we are looking at a parabola. Parabolas are the only conic sections with an eccentricity of 1.

Next, the directrix of this parabola is located at x = 4. This implies that the parabola opens towards the left and thus the denominator of its polar equation contains a positive cosine function.

Finally, the value of k in the numerator is simply the product of the eccentricity and the absolute value of the directrix;

k = 1*4 = 4

This polar equation is given by alternative D

6 0
3 years ago
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