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4 years ago

Please help!!!! I'll give brainliest! Image of question is attached.

Mathematics

2 answers:

Marizza181 [45]4 years ago

7 0

Answer for the first box is 8

Answer for the second box is 64

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Explanation:

The expression x^2-16x+64 factors to (x-8)^2. We can see this by FOILing out (x-8)^2 = (x-8)(x-8) to get x^2-8x-8x+64 = x^2-16x+64. You can also use the box method as shown in the diagram below. The box method is a visual way to keep track of the terms. Each cell in the table is the result of multiplying the outer values. Example: the value 64 in row2,column2 is the result of 8*8 = 64. So this shows why 8 goes in the first answer box.

The 64 in the second answer box is from the 64 from step 3. It gets transferred/copied down to step 4.

Maurinko [17]4 years ago

4 0

Answer:

(x - 8)² - 64

Step-by-step explanation:

x²- 16x

x² - 2x(8) + 8² - 8²

(x - 8)² - 64

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Preeta watches an ant and beetle crawl in a hole in the ground. the beetle is 3/4 inch below ground level. the beetle climbs 1/3

Alex_Xolod [135]

Answer:

1a: $\frac{3}{4}$ + $\frac{1}{3}x$ = $2\frac{1}{2}$

1b: See below

1c: $2\frac{3}{4}$ inches between the beetle and ant

Step-by-step explanation:

1a. To build the equation, we need to see that the beetle started at 3/4th inches below ground level, then "climbed" (which is poor English, it should be descended) a certain distance, and then it ended up at 2 1/2 inches below ground. The distance "climbed" can be represented as 1/3X, where "X" is the ant's current distance. We would do 1/3rd times "X" to figure out how much the beetle climbed down.

So that means, if we added together the starting position of 3/4, plus the distance the beetle descended (1/3X), that would get us TO 2 1/2 inches below ground (the beetle's new current position). So therefore our equation is:

$\frac{3}{4}$ + $\frac{1}{3}x$ = $2\frac{1}{2}$

1b. Solve the equation written above from 1a.

$\frac{3}{4}$ + $\frac{1}{3}x$ = $2\frac{1}{2}$

-3/4 -3/4 [subtract 3/4 to start the process of getting x by itself]

$\frac{1}{3}x$ = 1 $\frac{3}{4}$

*3/1 *3/1 [Multiply Reciprocal to get X by itself]

x= $5\frac{1}{4}$

1c. So we take the position of the ant figured out on 1b (5 1/4 inches), and the new current position of the beetle (2 1/2 inches), and subtract them

5 1/4 - 2 1/2 = $2\frac{3}{4}$

4 0

2 years ago

Please I need help with these 2 questions!!

Elodia [21]

Answer:

Step-by-step explanation:

5. A straight line (view that attached graph)

6. y = x² + (-3) is equivalent to y = x² - 3

y = x² - 3

y = 0² - 3

y = 0 - 3

y = -3

(0, -3)

y = x² - 3

y = 1² - 3

y = 1

y = -2

(1, -2)

y = x² - 3

y = 2² - 3

y = 4 - 3

y = 1

(2, 1)

y = x² - 3

y = 3² - 3

y = 9 - 3

y = 6

(3, 6)

So the answers are: -3, -2, 1, 6

Hope this helps!

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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mario62 [17]

Answer:

Step-by-step explanation:

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7 0

2 years ago

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natali 33 [55]

Answer:

55 pages/hour

350 - 55x = y

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4 years ago