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melomori [17]
2 years ago
8

The number of cows a farmer has on his farm over several years can be modeled by an arithmetic sequence. During the 2nd, 5th, an

d 7th years, he has 30, 39, and 45 cows, respectively. How many cows did the farmer have in his first year on the farm?
Mathematics
1 answer:
Leni [432]2 years ago
8 0

Answer: im not sure

Step-by-step explanation:

i have that same problem and its due in ten min :( sorry

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Composite numbers are numbers that are not prime.
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2 years ago
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Abcd is a rectangle if DB=26 and DC=24 find bc
Anettt [7]
Let's solve this problem step-by-step.

STEP-BY-STEP EXPLANATION:

Let's first establish that triangle BCD is a right-angle triangle.

Therefore, we can use Pythagoras theorem to find BC and solve this problem. Pythagoras theorem is displayed below:

a^2 + b^2 = c^2

Where c = hypotenus of right-angle triangle

Where a and c = other two sides of triangle

Now we can solve the problem by substituting the values from the problem into the Pythagoras theorem as displayed below:

Let a = BC

b = DC = 24

c = DB = 26

a^2 + b^2 = c^2

a^2 + 24^2 = 26^2

a^2 = 26^2 - 24^2

a = square root of ( 26^2 - 24^2 )

a = square root of ( 676 - 576 )

a = square root of ( 100 )

a = 10

Therefore, as a = BC, BC = 10.

If we want to check our answer, we can substitute the value of ( a ) from our answer in conjunction with the values given in the problem into the Pythagoras theorem. If the left-hand side is equivalent to the right-hand side, then the answer must be correct as displayed below:

a = BC = 10

b = DC = 24

c = DB = 26

a^2 + b^2 = c^2

10^2 + 24^2 = 26^2

100 + 576 = 676

676 = 676

FINAL ANSWER:

Therefore, BC is equivalent to 10.

Please mark as brainliest if you found this helpful! :)
Thank you and have a lovely day! <3
7 0
2 years ago
Dados los intervalos A=]-2;2[ ,B=[0;5[ y C=]-∞;1], determine el intervalo que resulta de operar: (A∩B)-C
d1i1m1o1n [39]

Answer: ]1, 2[

Step-by-step explanation:

A \cap B=[0; 2[\\\\(A \cap B)-C=]1, 2[

8 0
1 year ago
2x+3(x-4)=4(2x+3) solving one linear equation form
Art [367]

Answer:

x= -8

Step-by-step explanation:

2x+3x-12=8x+12

5x-12=8x+12

5x-8x=12+12

-3x=24

24/-3

x= -8

4 0
2 years ago
In a large population of college students 20% of the students have experienced feelings of math anxiety. If you take a random sa
NARA [144]

Answer:

In a large population of college students 20% of the students have experienced feelings of math anxiety. If you take a random sample of 10 students from this population, the probability that exactly 2 students have experienced math anxiety is:

Step-by-step explanation:

a .3020

b .2634

c .2013

d .5 e 1 the answers is A

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2 years ago
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