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bezimeni [28]
2 years ago
11

Simplify the expression, 6 + (-5)2 – 4. A. -8 B. 12 C. 27 D. -27

Mathematics
1 answer:
Klio2033 [76]2 years ago
4 0
The correct answer is A
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Given the sequence rn defined recursively below, find r3. r1rn=2=−rn−1+n−2
kifflom [539]

Answer:

r_3=3

Step-by-step explanation:

Given:

r_1=2\\r_n=-r_{n-1}+n-2

We want to find the value of r_3 .

\\r_2=-r_{2-1}+2-2\\r_2=-r_1\\r_2=-2\\\\r_3=-r_{3-1}+3-2\\r_3=-r_{2}+1\\r_3=-(-2)+1\\r_3=2+1\\r_3=3

7 0
2 years ago
Simplify 3^2 x 2^4 x 3^3 x 2
alex41 [277]
3²×2^4 ×3³×2=
3^5×2^5=
243 × 32 = 7776

3 0
3 years ago
What is the equation of the line through (−2, −2) and (4, −5)?
Liono4ka [1.6K]

Answer:

y = -1/2x - 3

Step-by-step explanation:

slope: (y2-y1) / (x2-x1)

(-5 - -2) / (4 - -2)

(-5 + 2) / (4 + 2)

-3 / 6

- 1 / 2

y-intercept: y = mx + b

-5 = -1/2(4) + b

-5 = -2 + b

-3 = b

7 0
2 years ago
Pls help! 5,6,7<br> 30 points
Deffense [45]
Jon=x-2 jor=x

2(x-2)=x+6

2x-4=x+6

combine like terms

x=10 Jordan's age

x-2 or 10-2 =8 Jonathan's age

13-10= 3 years apart

when aylon was 3 Karina was 6

2×3 =6

this was 7 years ago(answer)

10-3=7

13-6=7

48-36=12 years apart

when kd was 6 and md 18

3×6=18

30 years ago

36-6=30

48-18=30
3 0
3 years ago
Sarah was raising money for a fundraiser. Her fundraising goal was $40. What would 50% of her fundraising goal be??
Delvig [45]

Answer:

$20

Step-by-step explanation:

50% of Fundraising goal= 0.5 x $40

                                        = $20

4 0
2 years ago
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