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nirvana33 [79]
3 years ago
5

Can someone help me pls use this idea to add 5x^2+2x+3: +2x^2+7x+1​

Mathematics
1 answer:
Darina [25.2K]3 years ago
5 0
Here you go :) 7x^2 + 9x + 4
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Robert earns $300 every week. What equation shows the relationship between salary per week (s), number of weeks worked (w), and
aev [14]

Answer:

ti=s*w

Step-by-step explanation:

ti=total incom

s=salery per week

w=weeks worked

ti=s*w

3 0
3 years ago
areas of four triangles are 40 cm^2, 90 cm^2, 202.5 cm^2 and 455.6 cm^2 are continue in sequence. the enlargement factor is 1.5,
maw [93]

Answer:

9th Triangle

Step-by-step explanation:

Given the area of four triangles:40 cm^2, 90 cm^2, 202.5 cm^2 \:and\: 455.6 cm^2

If the Scale factor is 1.5.

This is a geometric sequence and the common ratio is 1.5 X 1.5.

Therefore, the area of any n triangle can be determined using the function:

A(n)=40\cdot1.5^{2(n-1)}

We want to determine which triangle has an area greater than 15000cm^2.

When A(n)=15000

40\cdot1.5^{2(n-1)}>15000\\1.5^{2(n-1)}>\frac{15000}{40} \\1.5^{2(n-1)}>375\\\text{Change to Logarithm form}\\2(n-1)>Log_{1.5}375\\\text{Applying logarithm change of base to base 10 law}\\2(n-1)>\frac{Log 375}{Log 1.5} \\2n-2>14.62\\2n>14.62+2=16.62\\n>8.31

Therefore, the 9th triangle has an area greater than 15000cm^2.

5 0
3 years ago
(22/7-2/3) divided by 2 is ____________ the value of (22/7-2/3) -{greater than,less than,or equal to }
V125BC [204]
(22/7 - 2/3) divided by 2 is less than the value of 22/7 - 2/3
3 0
3 years ago
Read 2 more answers
Just answer plz no step-by-step
adell [148]

Answer:

32

Step-by-step explanation:

❂Hello there❂

❉Basically the answer is 32

❉ If you change your mind and need a method just ask :)

❉Zervi

5 0
3 years ago
How would i answer this?​
Lelu [443]

9514 1404 393

Answer:

  y = (x -1)² -16

Step-by-step explanation:

Note the location of the vertex (point A) on the graph. Its x-coordinate is readily identifiable as 1. Its y-coordinate is some value between -15 and -20, closer to -15. (If you go to the trouble of finding the vertex coordinates, you discover they are (1, -16).)

Once you have determined what the vertex is, you can compare the offered answer choices to the vertex form ...

  y = (x -h)² +k

where (h, k) are the vertex coordinates. That is, you are looking for an answer choice that is something like ...

  y = (x -1)² -16

3 0
3 years ago
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