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erastovalidia [21]

4 years ago

9

The partial factorization of x2 – x – 12 is modeled with algebra tiles. Which unit tiles are needed to complete the factorizatio

n? 3 negative unit tiles 3 positive unit tiles 4 negative unit tiles 4 positive unit tiles

2 answers:

MA_775_DIABLO [31]4 years ago

5 0

Answer: C

Step-by-step explanation:

melisa1 [442]4 years ago

3 0

Answer: Answer is C

4 Negative units

Step-by-step explanation:

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To approach the runway, a pilot of a small plane must begin a 10 degrees descent starting from a height of 1983 feet above the g

ddd [48]

<h3>Answer:</h3>

2.2 miles

<h3>Explanation:</h3>

The mnemonic SOH CAH TOA reminds you that

... Sin = Opposite/Hypotenuse

We are given an angle (10°) and its opposite side length (1983 ft), and we are asked to find the hypotenuse (the straight-line distance from the plane to the runway).

... sin(10°) = (1983 ft)/distance

Multiplying by distance and dividing by sin(10°), we have ...

... distance = (1983 ft)/sin(10°) ≈ 11419.6 ft

We want to express this in miles, so we have ...

... 11419.6 ft = (m mi)×(5280 ft/mi)

... (11419.6 ft)/(5280 ft/mi) = m mi ≈ 2.163 mi

Rounding to tenths, the distance is ...

2.2 miles

_____

<em>Comment on the question</em>

The distance from the plane to the airport is different than the horizontal distance from the airport at which the descent must start. The latter distance is the "adjacent" leg of the triangle, so must be found using the tangent function. Rounded to tenths, it is 2.1 miles.

8 0

3 years ago

A construction company plans to invest in a building project. There is a 30% chance that the company will lose $30,000, a 40% ch

Gnom [1K]

Answer: Option 'A' is correct.

Step-by-step explanation:

Since we have given that

30% chance that the company will lose $30000.

40% chance of a break even that there is no loss and no profit.

30% chance that the company will profit $ 60000.

As we know the formula for "Expectation":

So, Expected value will be

$\frac{30}{100}\times (-30000)+\frac{40}{100}\times 0+\frac{30}{100}\times 60000\\\\=03\times (-30000)+0.4\times 0+0.3\times 60000\\\\=-9000+18000\\\\=\$9000$

Expected value is $9000. So, the company should proceed with the project.

Hence, Option 'A' is correct.

4 0

3 years ago

Terms are also expressions.<br> No<br> Some<br> А All<br><br> PLZ ANSWER FAST

luda_lava [24]

The answer would be some

3 0

3 years ago

What kind of Function best models the Data in the table?

Vikki [24]

Answer:

a) linear

Step-by-step explanation:

Linear keeps a steady pace throughout the function. in the graph, the function is decreasing by 0.5

8 0

3 years ago

Read 2 more answers

What is the solution to 4 (m-3) + 19 = 8 (2m + 3) + 7?

Flauer [41]

Answer:

x=-2

Step-by-step explanation:

Let m=x

$4(x-3)+19=8(2x+3)+7\\$

Expand the parentheses:

$4x-12+19=16x+24+7\\4x+7=16x+31\\-31+7=16x-4x\\-24=12x\\x=-2$

<em>Hope this helped! If you have any more questions regarding the explanation, please comment below, have a good day!</em>

6 0

3 years ago