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skelet666 [1.2K]
3 years ago
8

Error Analysis: Describe the error in the way the product of the two polynomials is set up and/or solved. Please be specific. (6

points) (x - 3)(-2x² + x - 5)

Mathematics
1 answer:
sergiy2304 [10]3 years ago
6 0

Answer:

  see below

Step-by-step explanation:

The problem is set up properly.

The factor of x was not properly multiplied by the first two terms of the trinomial. Terms were not combined correctly.

The proper multiplication and combining of terms is shown in the attachment. The green diagonal lines show the like terms that need to be combined to form the result.

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Evaluate the numerical expression8×{[(7+4)×2]-[(11-7)×4]}
alina1380 [7]

Answer:

We have:

7 + 4 = 11;

11 - 7 = 4;

11 x 2 = 22;

4 x 4 = 16;

22 - 16 = 6;

Finally, 8 x 6 = 48;

Step-by-step explanation:


3 0
3 years ago
Please help will give brainliest
almond37 [142]

Step-by-step explanation:

\frac{32.5}{33.8}  = 0.9615

5 0
3 years ago
Read 2 more answers
One leg of a right triangle has a length of 55 m. the other sides have lengths that are consecutive integers. find these lengths
noname [10]

First let us assign the variables for the two lengths:

x = 1st integer

x + 1 = 2nd consecutive integer = the hypotenuse of the right triangle

The 2nd consecutive integer should be the hypotenuse since its value should be highest among the three sides.

 

Now using the hypotenuse formula we calculate for x:

(x + 1)^2 = 5^2 + x^2

x^2 + 2x + 1 = 25 + x^2

2x + 1 = 25

2x = 24

x = 12 m

 

So other integer is

 x + 1 = 13 m

 

Therefore the other sides are 12 m and 13 m.

4 0
3 years ago
Given the function f(x)=x^2+2x+1, find: f( 1/a )
igor_vitrenko [27]

Answer:

f(1/a) = 1/a² + 2/a + 1

Step-by-step explanation:

Step 1: Define

f(x) = x² + 2x + 1

f(1/a) is x = 1/a

Step 2: Substitute and Evaluate

f(1/a) = (1/a)² + 2(1/a) + 1

f(1/a) = 1/a² + 2/a + 1

5 0
3 years ago
What does n equal? Please explain if you can.
GenaCL600 [577]
█ Explanation <span>█  

Solve for n.

</span>✦ n+ \frac{1}{2} = \frac{7}{4}
✦ Subtract \frac{1}{2} from both sides. 
✦ n+ \frac{1}{2} - \frac{1}{2} = \frac{7}{4} - \frac{1}{2}
✦ n= \frac{5}{4}

Answer: \frac{5}{4}

<span>Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span>
4 0
3 years ago
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