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AveGali [126]
3 years ago
8

I need help please with this

Mathematics
2 answers:
kow [346]3 years ago
7 0
Isbjebeje uwjnebr win snow due r iwbriw rien she
OlgaM077 [116]3 years ago
4 0
That’s ok what’s your problem
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Which rule can you use to find the nth term of an arithmetic sequence in which the common difference is 5 and a12 = 63?
iren2701 [21]
Tn = a + (n-1)d

when n  = 12, tn  = 63

63 = a + (12-1)*5

a = 63 - 55 =8

tn or an 
= 8 + (n-1) 5

=  3 + 5n

Hope this helps
4 0
3 years ago
Ou want to get an oil change every 4,000 miles. How many oil changes do you get in a year driving 1000 miles a month?
deff fn [24]
3.

1000 miles per month.
12 months in a year.
1000 × 12 = 12000 miles per year

Oil change every 4000 miles.
12000 ÷ 4000 = 3

Therefore 3 oil changes per year.
5 0
3 years ago
If a person can carry 40 pounds, and a group of people want to carry 86 pounds of stuff, how many people are necessary to carry
aliina [53]

Answer:

3 people

Step-by-step explanation:

Because 40+40 =80 also equals 2 people so if they can only do 80 together then you would need another person even if its 6 more pounds then 80.

Hope this helps....Also please like if this helped you so I know to do more!!! :)

4 0
3 years ago
A 45 foot ladders leaning up against a building. The base of the latter is 20 feet away from the building. What is the angle of
Tatiana [17]

Answer:

The angle of elevation to the top of the building is 63.61 degrees

Step-by-step explanation:

Here, we want to calculate angle of elevation to the top of the building.

For this, we need a triangle

Please check for this in the attachment.

From the diagram, we are to calculate the angle theta.

To do this, we use trigonometric identities.

Looking at what we have, we have the hypotenuse and the adjacent.

So the trigonometric identity to use is the cosine

Mathematically Cosine theta = adjacent/hypotenuse

Thus, Cos theta = 20/45

Cos theta = 0.444444444444444

Theta = Arc cos(0.444444444444444)

Theta = 63.61 degrees

8 0
3 years ago
Answers please?? Thank you!
Free_Kalibri [48]
A= 1,3
B= 5,5
C= 6,1
Here you go
8 0
3 years ago
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