3 years ago

F(x) =2x^2+4x+5 Find: (a+h)

Mathematics

1 answer:

larisa [96]3 years ago

5 0

Answer : a = -2, h = 1

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I really need help on this one.

Lemur [1.5K]

m<M + m<N = 180°
11x + 6x - 7 = 180
11x + 6x = 180 + 7
17x = 187
x = 187 : 17 = 11

m<M = m<O = 11x = 11 · 11 = 121°
m<N = m<L = 6x-7 = 6 · 11 -7 = 66 - 7 = 59°

Check : 121° + 59° = 180° OK !

3 0

3 years ago

The cost of packing a box of chocolates is given by x2, where x is the number of chocolates (a box can never have fewer than 3 c

Levart [38]

For a box with x chocolates, the cost of packaging is C(x) = x^2 and the
weight is W(x) = x + 2. Thus the cost per unit weight is C(x) / W(x) = x^2 / (x + 2)

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3 years ago

Read 2 more answers

The manager of an orchard expects about 70% of his apples to exceed the weight requirement for ""Grade A"" designation. At least

mamaluj [8]

Answer:

356

Step-by-step explanation:

We are given that p=0.7, and a 90% confidence interval. Also, we know the margin of error to be 0.04, the sample size is calculated as:

#The sample size is calculated as:

$ME=z_{\alpha/2}\sqrt\frac{p(1-p)}{n}}\\\\0.04=1.645\sqrt\frac{0.7(1-0.7)}{n}\\\\n=\frac{0.7\times 0.3}{(0.04/1.645)^2}\\\\n=355.17\approx 356$