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2 years ago

2^5/4 = 2^5/2^a = c a= b= c= What are the answers pls

Mathematics

1 answer:

monitta2 years ago

8 0

Answer:

mass of 1 mole 2^5/4=2^5/2a=c=0g

Step-by-step explanation:

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True or False: A race car driver tested his car for time from 0 to 60 mph, and for 20 tests obtained a mean of 4.85 seconds with

sattari [20]

Answer:

The given statement is false.

Step-by-step explanation:

We are given the following in the question:

95% confidence interval: (4.53,5.18)

Sample mean, $\bar{x}$ = 4.85 seconds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, σ = 1.47 seconds

Degree of freedom = n - 1 = 19

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 4 and}~\alpha_{0.01} = \pm 2.09$

$4.85 \pm 2.09(\dfrac{ 1.47}{\sqrt{20}} )\\\\ = 4.85 \pm 0.69 \\\\= (4.16 ,5.54)$

Thus, the calculated confidence interval is different from the given confidence interval.

Hence, the given statement is false.

6 0

4 years ago

A positive angle less than 360 degrees that is coterminal with -5 degrees is

nadya68 [22]

Answer:

$\theta = 355$

Step-by-step explanation:

Given

Let the angle be $\theta$

$\theta < 360$

$\theta$ is co-terminal with -5

Required

Find $\theta$

Start by dividing 5 by 360 (ignore the negative)

$\frac{5}{360} = 0.0138$

The nearest integer greater than 0.0138 is 1.

<em>This implies that if you were to draw for this problem, the circle you would draw to show -5 degrees would go around 1 time</em>

So, $\theta$ is calculated as:

$\theta = -5 + 1*360$

$\theta = -5 +360$

$\theta = 355$

7 0

3 years ago

Formulate the recursive formula for the following geometric sequence.<br> {-16, 4, -1, ...}

marshall27 [118]

The first term is -16, so we have

... a[1] = -16

Each term is -1/4 of the one before it, so the recursive rule is

... a[n+1] = (-1/4)a[n]

7 0

3 years ago

Read 2 more answers

Please help and show work!! Also please check work!!

Leto [7]

Hi!

<h3>Divide by -10 on both sides. </h3>

-10x/-10 < -100/-10

<h3>The inequality sign flips because we are dividing by a negative number. </h3>

<h2>The answer is A x > 10</h2>

Hope this helps! :)

-Peredhel

3 0

3 years ago

How to solve 2-z/4+5z•3/z as a rational expression

Bad White [126]

<u>2 - z</u> + <u>5z × 3</u>
4    z
<u>2 - z</u> + <u>15z</u>
4 z
<u>z(4)(z</u>) + <u>15z(z)(4)</u><u />
4(z)     4(z)
<u> 4z²</u> + <u> 60z²</u>
4z    4z
<u>64z²</u>
4z
16z

4 0

3 years ago