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Ratling [72]
3 years ago
14

In the sequence generated by the formula a, = n -4, which term has a value of 8?

Mathematics
1 answer:
ZanzabumX [31]3 years ago
5 0
Answer

Sksjkskskalalaalalskkskdkskskskskksksksksk

Explanation:
Hope that helps
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Leahs age is twice her cosins age. If they add thier ages together, they get 36. How old are leah and her cosin
Art [367]
Leah is 24 and her cousin is 12. Since 24 is double of 12, thats your answer and it makes the most sense.
6 0
3 years ago
The straight line 2x + 3y = 7 meets the curve
NISA [10]

Step-by-step explanation:

xy + 10 = 0. => y = -10/x.

2x + 3y = 7. => 3y = -2x + 7, y = -2/3 x + 7/3.

When -10/x = -2/3 x + 7/3,

-10 = -2/3 x² + 7/3 x, 2/3 x² - 7/3 x - 10 = 0.

=> 2x² - 7x - 30 = 0

=> (2x + 5)(x - 6) = 0

=> x = -2.5 or x = 6.

dy/dx = d/dx [-10/x] = 10/x².

When x = -2.5, dy/dx = 10 / (-2.5)² = 1.6.

When x = 6, dy/dx = 10 / (6)² = 5/18.

Hence the gradients at the points are 1.6 and 5/18.

5 0
3 years ago
The polynomial is a difference of perfect squares. Use the formula a2 – b2 = (a + b)(a – b) to factor completely. 81x2 – 49 The
borishaifa [10]
To answer your question: Rewrite <span>81<span>x2</span></span> as <span><span>(<span>9x</span>)</span>2</span>.<span><span><span>(<span>9x</span>)</span>2</span><span>−49</span></span>Rewrite 49 as <span>72</span>.<span><span><span>(<span>9x</span>)</span>2</span><span>−<span>72</span></span></span> Both terms are perfect squares, factor using the difference of squares formula, <span><span><span>a2</span><span>−<span>b2</span></span></span>=<span><span>(<span>a+b</span>)</span><span>(<span>a<span>−b</span></span>)</span></span></span> where <span>a=<span>9x</span></span> and <span>b=7</span>.<span><span>(<span><span>9x</span>+7</span>)</span><span>(<span><span>9x</span><span>−7</span></span><span>)</span></span></span>
3 0
3 years ago
Read 2 more answers
Can u help me <br><br>thanks u
vovikov84 [41]
1 1/2=
1.5

1.5 * 3 =

4.5
7 0
2 years ago
Please help!<br><br>4^x*5^y=20, 4^y*5^x=20^2, x+y=?​
photoshop1234 [79]

Answer:

x + y are either 2 or 4

Step-by-step explanation:

conclusion x + y = 2 OR 4

7 0
2 years ago
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