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Solnce55 [7]
3 years ago
15

Please help, thanks. I don't understand how to do this.​

Mathematics
1 answer:
konstantin123 [22]3 years ago
6 0

Answer:

3m(a-2b)+(a-2b)^2

= 3m(a-2b)+(a-2b)(a-2b)

= (a-2b)(3m+a-2b)

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Identify the vertex of the graph. Tell whether it is a minimum or a maximum.
Nataly_w [17]

Answer:The vertex in the graph is (-2,1) and It has a maximum value of 1 ,occurs at x=-2

Step-by-step explanation:

To find the vertex of a quadratic equation you gotta find the find middle point of the equation it could be lowest or his point in the quadratic equation

In this graph the vertex is the highest point in this graph (-2,1)

The quadratic equation is a maximum because the vertex is the highest point in the graph and if the vertex point was the lowest point it would been minimum.

5 0
3 years ago
What is the value of the correlation coefficient r of the data set
bonufazy [111]

Answer:

the answer is 0.84

Step-by-step explanation:

5 0
3 years ago
in one day annie traveled 5 times the sum of the number of hours brian traveled and 2. together they traveled 20 hours. find the
8090 [49]
<span>Let  Ah be Annie's hour of travel in 1 day and Bh be Brian's hour

to get Brian's hour of travel:
Ah + Bh  = 20

5 (Bh +2 ) + Bh= 20
5 Bh + 10 + Bh=20
6 Bh = 20 - 10
<u>6Bh</u> = <u>10</u>
6          6</span>
Bh =1.66  

To get Ah of travel 1 day
Ah = 5 (Bh + 2)
 <span>    = 5 (1.66 + 2) </span> <span>
     = 5 ( 3.66 )</span>
 Ah = 18.30  

Checking: Ah + Bh =20  <span>

18.30 + 1.66 = 20
</span><span>19.96 = 20</span>  <span>
20 = 20</span>
(19.96 is rounded off)



6 0
4 years ago
Drake spent $540 on books. Math books cost $60 and science books cost $80. If he bought a total of 8 books, how many of each kin
PIT_PIT [208]

Answer:

He bought 4 in total

6 0
3 years ago
Read 2 more answers
Gwendolyn was physically present in the United States for 96 days in 2019, 198 days in 2018, and 66 days in 2017. Under the subs
Svetradugi [14.3K]

Answer:

173 days

Step-by-step explanation:

The formula for substantial presence test is;

SBT = (Total of number of days present in the current tax year) + (1/3)(number of days in the year that was before the tax year) + (1/6)(number of days in the year that was two years before the tax year)

From the question, present tax year is 2019 and number of days is 96 days.

Year before tax year is 2018 and number of days is 198 days

2 years before tax year is 2017 and number of days is 66 days.

Thus;

SBT = 96 + ((1/3)198) + ((1/6)66)

SBT = 173 days

5 0
3 years ago
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