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Annette [7]
3 years ago
5

What is the answer to this

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
3 0

5x^2 + 7x - 4 - (-3x^2 -4x + 5)

= 5x^2 + 7x - 4 + 3x^2 + 4x - 5

= 8x^2 + 11x - 9

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Please help me with this problem i need this now
Bad White [126]

Answer:

$2,975

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 3500 × 15/100

Discount = 3500 x 0.15

You save = $525.00

Final Price = Original Price - Discount

Final Price = 3500 - 525

Final Price = $2,975.00

4 0
2 years ago
Video Example EXAMPLE 1 Find the linearization of the function f(x) = x + 1 at a = 3 and use it to approximate the numbers 3.98
Blizzard [7]

Answer:

  the linearization is y = 1/4x +5/4

  the linearization will produce <em>overestimates</em>

  the values computed from this linearization are ...

     f(3.98) ≈ 2.245

     f(4.05) ≈ 2.2625

Step-by-step explanation:

Apparently, you have ...

  f(x)=\sqrt{x+1}

from which you have correctly determined that ...

  f'(x)=\dfrac{1}{2\sqrt{x+1}}

so that f(3) = 2 and f'(3) = 1/4. Putting these values into the point-slope form of the equation of a line, we get the linearization ...

  g(x) = (1/4)(x -3) +2

  g(x) = (1/4)x +5/4

__

The values from this linearization will be overestimates, as the curve f(x) is concave downward everywhere. The tangent (linearization) is necessarily above the curve everywhere.

__

At the given values, we find ...

  g(3.98) = 2.245

  g(4.05) = 2.2625

4 0
4 years ago
Help me answer 1 and 2 please
Fittoniya [83]
I think 1 is -540 and 2 is -290
8 0
3 years ago
A magazine provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 ​respondent
Gwar [14]

Answer:

The answer to the given problem is given below.

Step-by-step explanation:

What values do p, q,n,E and p represents?

The value of p is the sample proportion.

The value of q is found from evaluating 1− p.

The value of n is the sample size.

The value of E is the margin of error.

The value of p is the population proportion.

If the confidence level is 90%, what is the value of α?

α = 1- 0.90

α = 0.10

8 0
3 years ago
0.6 as a fraction and percent
Ludmilka [50]
6/10 is the fraction and 60 percent
6 0
3 years ago
Read 2 more answers
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