3 years ago

I need to know the answers to these problems

1 answer:

fomenos3 years ago

4 0

5. c = 9
6. a = 6
7. b = 12

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ohaa [14]

So what’s the question?

6 0

2 years ago

bija089 [108]

Answer:

The solutions are:

x=2

x=−5

Explanation:

2x2+3x−10=0

hope this helps (:

Step-by-step explanation:

4 0

2 years ago

Anni [7]

X=69 for the second one

5 0

3 years ago

il63 [147K]

Use the binomial theorem:

$\displaystyle (2x-9)^5 = \sum_{k=0}^5 \binom5k (2x)^{5-k}(-9)^k = \sum_{k=0}^5 \frac{5!}{k!(5-k)!} 2^5 \left(-\frac92\right)^k x^{5-k}$

The x ³ terms occurs for 5 - k = 3, or k = 2, and its coefficient would be

$\dfrac{5!}{2!(5-2)!} 2^5 \left(-\dfrac92\right)^2 = \boxed{6480}$

8 0

2 years ago

lbvjy [14]

Ac is 20cm and an is 5 cm u jus have to add them together

7 0

2 years ago