2 years ago

Find the slope between (-4,9)and(-2,8)

Mathematics

2 answers:

Taya2010 [7]2 years ago

7 0

Answer:

-1/2

Step-by-step explanation:

Tell me if you want a step by step.

Hope this helps. :)

dalvyx [7]2 years ago

7 0

Answer:

-1/2

Step-by-step explanation:

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4(4b-8)-3/8 Please help i have no idea what to do

Ksivusya [100]

Answer:

$4(4b - 8) - \frac{3}{8} \\ 16b - 32 - \frac{3}{4} \\ \frac{64b - 128 - 3}{8} \\ \frac{64b - 131}{8}$

hope this will help you

7 0

2 years ago

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:

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

Hence, at least 356 apples must be sampled to get a true proportion with the 4% ME.

6 0

3 years ago

The following equation f(x) = x³ + 0.5x² + 4.5 has only 1 real root. It lies between the interval [-1,0].

melisa1 [442]

We are asked in this problem to find the real root of the polynomial f(x) = x3 + 0.5x2 + 4.5. in this case, to find the root of the equation, we equate the equation to zero.
f(x) = x³ + 0.5x² + 4.5 = 0
2x3 + x^2 + 9 = 0
x1=−1.83557
x2=0.66779+1.41619∗i
x3=0.66779−1.41619∗i

answer is -1.84

6 0

4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bx%7D%20x%5E%7B2%7D" id="TexFormula1" title="\sqrt[n]{x} x^{2}" alt="\sqrt[n]{

posledela

This is the answer simplified