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arsen [322]
3 years ago
14

The second term of an arithmetic sequence is 7, the sum of the first four terms in the arithmetic sequence is 12, find the first

term and the common difference

Mathematics
1 answer:
Montano1993 [528]3 years ago
3 0
Consider the following short explanation.
Answer: a1=15; d= -8.

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The distance between the manufacturing plant and Jessie’s home is 4 miles. It takes Jessie 40 minutes to walk that distance. Wri
iVinArrow [24]

Answer:

time taken to walk one mile × total distance in miles = total time

t × 4 = 40

Step-by-step explanation:

3 0
2 years ago
If f(x)=x/2-3and g(x)=4x^2+x-4, find (f+g)(x)
Sergeeva-Olga [200]

Step-by-step explanation:

(f+g)(x) = f(x) + g(x)

= x/2-3 + 4x²+x+4

= ..........

4 0
2 years ago
A path 2.5m wide is running outside a square field whose side is 45m. Determine the area of the path.
aliya0001 [1]

Answer:

The area of the path would be 231.25 squared meters.

Step-by-step explanation:

Consider the path as 45m (the field's area), then add 2.5m to all of the sides. You'll get 47.5m on all sides. Then you do 47.5² to get 2256.25 squared meters. After that, you'll remove the area of the squared field. To do this, do 45m². By doing this, you'll get 2025 squared meters. Lastly, to finish up the question, do 2256.25 - 2025. This would get you 31.25 squared meters, the answer.

4 0
2 years ago
Camacho is buying a monster truck. The price of the truck
Mice21 [21]

Total cost = a + (13a/100)

<u>Step-by-step explanation:</u>

Let the price of the monster truck be 'a'

He should pay 13% tax

Total cost = price of the truck + tax

Total cost = a + (13a/100)

The equation to represent the total cost is

Total cost= a + (13a/100)

3 0
2 years ago
The measure of the​ angle's supplement is 40​° more than three times that of its complement. find the measure of the angle descr
Lemur [1.5K]
Angle is x. sup - adds up to 180. comp adds up to 90

180-x = 3(90-x)+40
180-x = 270-3x+40
180-x = 310-3x
180+2x = 310
2x = 130
x=65
8 0
2 years ago
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