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olchik [2.2K]
4 years ago
12

Write a formula for the nth term of the arithmetic sequence 1, 5, 9, 13, ……. then use the formula to find f(20).

Mathematics
1 answer:
Luba_88 [7]4 years ago
3 0
1+4(n-1)=f(n)
f(20)=77
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Evaluate the following expression:<br> 30 = 5(8 – 6 + 1) - (2^2 - 3)^3
grin007 [14]

Answer:

30=15

Step-by-step explanation:

30=40-30+6-4-27

30=10+2-27

40=12-27

30=-15

7 0
3 years ago
HELP ASAP!!!!
solong [7]

Answer:

b

Step-by-step explanation:

6 0
4 years ago
Please Help!!!
ValentinkaMS [17]
3 x 15 = 45
3 x 14 = 42

--------------

There are 14 packages.

----------------

x = 42/3

-----> 3x=42
4 0
3 years ago
This too!!<br><br><br><br><br> . <br> Please<br><br><br><br><br> .
REY [17]

Answer:

In order to tell if these are congruent triangles we would need to know if angles Y and V were congruent, angles X and W are congruent or if segments XU and WU were congruent.

Step-by-step explanation:

Any of these would work because you can use two different methods to telling that these are congruent triangles.

The first method is called side-angle-side. In it you need two side lengths that are congruent with a congruent angle in the middle. Since we already know that the right angle in the middle is congruent, and we know YU and VU are congruent, we would just need to know the additional side to prove congruence.

The second method is called angle, angle side. In this we need to know that two angles in a row are congruent followed by a side. Since we know the middle angle is the same, knowing either other angles would give us this method as well.

8 0
4 years ago
In Abbys office there are 42 men. The ratio of men to women in the office is 7.5. How many women are in the office?
natima [27]
Solution to this question is, first we need to change the ratio of men to women is 7:5 y = 42y/x = 7/5
5y = 7xx = 5y/7x = (5 * 42)/ 7x = 30
The number of women in the office is 30.The answer is 30.
7 0
3 years ago
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