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Dennis_Churaev [7]
3 years ago
10

Write the polynomial in standard form. X2 + 9 - 9x Write the polynomial in standard form.

Mathematics
1 answer:
9966 [12]3 years ago
6 0
Standard form : x2 - 9x + 9
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On Tuesday and Wednesday of last week I left home for school at the same time. On Tuesday I drove 40 mph (miles per hour) on my
meriva

Answer:

16.67 miles

Step-by-step explanation:

We have to:

t = time (in hours) required to arrive on time.

Now the time that is late or earlier, they give it in minutes, therefore it must be spent in hours:

In other words, 3 minutes late is 3/60 hours late, therefore:

t1 = t + 3/60

2 minutes before is 2/60 hours before, therefore:

t2 = t - 2/60

The distance is the same in both directions, so v1 * t1 = v2 * t2

We know that v1 = 40 and v2 = 50 by replacing:

40 * (t + 3/60) = 50 * (t - 2/60)

40 * t + 2 = 50 * t - 5/3

40 * t - 50 * t = -5/3 - 2

-10 * t = -3.66

t = 3.6 / 10

t = 0.366 hours = 0.366 * 60 = 22 minutes

That is, in the first case it takes 25 (22 + 3) minutes, therefore:

40 * 25/60 = 16.66 miles

In the second case it takes 20 (22 -2) minutes, therefore:

50 * 20/60 = 16.66 miles

Therefore lives 16.67 miles from work

5 0
3 years ago
please someone help with this question we are doing angle properties in polygons and I can't figure out b) i will give brainest
labwork [276]

 Answer:

a)  a = 60°  b = 60°   c = 120°  d = 60°

b)  a = 140°   b = 20°  c = 60°    d = 60°

Step-by-step explanation:

a)   Sum of the angles of a hexagon = (6 - 2)180 = 720

Since the hexagon is regular, c = 720/6 = 120

a and c are supplementary, so a = 180 - 120 = 60

d = 120/2 = 60

b)  

sum of the angles of a nonagon = (9 - 2)180 = 1260

a = 1260/9 = 140

140 + 2b = 180

         2b = 40

           b = 20

c = 60  and d = 60  (This is really difficult to explain with the vertices being labeled)

7 0
3 years ago
Your $128 regular pay, plus tips, was $237. How much were the tips?
Amanda [17]
Just subtract them- $109
7 0
3 years ago
Read 2 more answers
On August 11, Snippet Incorporated closed at $12,311 per share. One year earlier, one share closed at $14,298. What was an appro
Effectus [21]

The approximate 1-year percent change is 16.14%.

<h3>Percent change</h3>

Using this formula

Percent change=One year earlier closed amount-Closed amount/ Closed amount×100

Let plug in the formula

Percent change= $14,298-$12,311 /$12,311 ×100

Percent change=$1,987/$12,311 ×100

Percent change=16.14%

Inconclusion the approximate 1-year percent change is 16.14%.

Learn more about percent change here:brainly.com/question/11360390

8 0
2 years ago
PLEASE HELP WILL GIVE BRAINLIEST
maw [93]

Answer:

The answer would be...5(x + 2y minus 3)

3 0
3 years ago
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