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2 years ago

Select all expressions that are equivalent to 64.

Mathematics

1 answer:

ikadub [295]2 years ago

5 0

For 64 it’s A. , C. , D. and for 3 it’s D. and F

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What is the slope of a line that is perpendicular to the graphed line?

Lemur [1.5K]

Answer:

Step-by-step explanation:

To find the slope of the graphed line, you take two points. I have chosen (0, 4) and (8, 0)

The formula of a slope is (y value of second point $-y$ value of first point) divided by (x value of second point $-x$ value of first point):

$\frac{0-4}{8-0} =-\frac{1}{2}$

------------------------------------------------------------------------

The slope for a perpendicular line is 2.

6 0

2 years ago

For the given term, find the binomial raised to the power , whose expansion it came from: 10a ^ 3 * b ^ 2 .

9966 [12]

Answer:

i dont know sorry

Step-by-step explanation:

7 0

2 years ago

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

BabaBlast [244]

Answer:

153 times

Step-by-step explanation:

We have to flip the coin in order to obtain a 95.8% confidence interval of width of at most .14

Width = 0.14

ME = $\frac{width}{2}$

ME = $\frac{0.14}{2}$

ME = $0.07$

$ME\geq z \times \sqrt{\frac{\widecap{p}(1-\widecap{p})}{n}}$

use p = 0.5

z at 95.8% is 1.727(using calculator)

$0.07 \geq 1.727 \times \sqrt{\frac{0.5(1-0.5)}{n}}$

$\frac{0.07}{1.727}\geq sqrt{\frac{0.5(1-0.5)}{n}}$

$(\frac{0.07}{1.727})^2 \geq \frac{0.5(1-0.5)}{n}$

$n \geq \frac{0.5(1-0.5)}{(\frac{0.07}{1.727})^2}$

$n \geq 152.169$

So, Option B is true

Hence we have to flip 153 times the coin in order to obtain a 95.8% confidence interval of width of at most .14 for the probability of flipping a head

6 0

2 years ago

Please help me I suck at math

Firlakuza [10]

Answer:

Step-by-step explanation:

To find the slope of a line, you need to find how much it rises for a certain amount of run. Here, the line rises from -3 to 1, which is a rise of 4, while "running" from -1 to 3, or a run of 4. 4/4=1. Hope this helps!

7 0

3 years ago

Read 2 more answers

Find the area of the figure.<br> help asap!

Alborosie

165

5x5= 25
12x12=144
25+144= 165

4 0

2 years ago

Read 2 more answers