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vlada-n [284]
3 years ago
10

The second term of an arithmetic sequence is 7. The sum of the first 4 terms of the arithmetic sequence is 12. Find the first te

rm, and the common difference, d, of the sequence.
*Please help*
Mathematics
1 answer:
adell [148]3 years ago
6 0

Answer:

15 is the answer

Step-by-step explanation:

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-5x(4x+6)=21 whats the answer
AysviL [449]
1.) Multiply the parentheses by -5x
2.) Move the constant to the left
3.) Change the signs
4.) Solve the quadratic equation
5.) Evaluate the powers and multiply
6.) Calculate

Answer: No solution
4 0
4 years ago
Read 2 more answers
What is the value of x?
dusya [7]
X = 8. You can find this by adding 90 (from the shown 90 angle to 18 and then subtracting 180-102 = 9x to since angle LJW is known to be 180 degrees (since its a straight line). Solving we get 72 = 9x.
Divide both sides by 9
X = 8

I hope this helps!
4 0
3 years ago
Write the equation of a line with the slope of 2, which contains the point
Crazy boy [7]

Answer:

y=2x-16

Step-by-step explanation:

So since we have a point and the slope, we can use the point-slope equation to find our equation of a line

y - y₁ = m(x - x₁)

Here our (x₁, y₁) point is (4, -8) and our m is 2

Plugging in these values to our equation gives us:

y - (-8) = 2(x - (4)) → distributing the negative to the -8 gives y + 8 = 2(x - 4) → distributing the 2 to the (x - 4) gives y + 8 = 2x - 8 → and finally subtracting the  8 from both sides gives our equation of a line y = 2x - 16

8 0
4 years ago
Multiply and subtract these polynomials and simplify. Enter your response in standard form.
a_sh-v [17]

Answer: use this website  https://www.symbolab.com/solver/polynomial-equation-calculator/%5Cleft(2x3%20%E2%88%92%203x%20%2B%2011%5Cright)%20%E2%88%92%20%5Cleft(3x2%20%2B%201%5Cright)%5Cleft(4%20%E2%88%92%208x%5Cright)

3 0
3 years ago
Every week, Hector works 20 hours and earns $210.00. He earns a constant amount of money per hour.
baherus [9]
The answer is 40.

H - hours W - weeks
20 x 2 = 40
5 0
3 years ago
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