All categories

3 years ago

FOR BRAINLIST ANSWER AND 10 POINTS ANSWER ALL PLZ !!!!!

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

3 0

<h2>Greetings!</h2>

<h3>If you can see, every 4 minutes the amount of water is increasing at a constant rate. </h3>

197 - 153 = 44

285 - 241 = 44

<h3>This means that at 8 minutes, because there is 153 gallons already in, we can divide 8 by 4 to see how many groups of 4 minutes there were. </h3>

8 ÷ 4 = 2

So then we can subtract two lots of 44 from 153:

153 - (44 x 2) = 65

<h3>So the starting amount was 65.</h3>

<h3>The answer to B is the second option, because it is true that the amount of water is increasing. This is by 44 gallons per 4 minutes.</h3>

The amount of gallons per minute can be found out by dividing the amount by 4:

44 ÷ 4 = 11

<h3>So it is 11 gallons per minute.</h3>
<h2>Hope this helps!</h2>

You might be interested in

The diameters of aluminum alloy rods produced on an extrusion machine are known to have a standard deviation of 0.0001 in. A ran

Murljashka [212]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The null hypothesis is rejected this means that $\mu \ne 0.5025$

The 95% confidence interval is $0.5045608 < \mu < 0.5046392$

Step-by-step explanation:

From the question we are told that

The standard deviation is s= 0.0001

The sample size is n = 25

The sample mean is $\= x = 0.5046 \ in$

The population mean is $\mu = 0.5025 \ in$

The null hypothesis is $H_o : \mu = 0.5025$

The alternative hypothesis is $H_a : \mu \ne 0.5025$

The test statistics is mathematically represented as

$t = \frac{0.5046 - 0.5025}{ \frac{0.0001}{\sqrt{25} } }$

$t = 105$

So the p-value from the z-table is mathematically represented as

$p-value = 2 * P( z > 105)$

$p-value = 0.000$

seeing that

$p-value < \alpha$ we reject the null hypothesis

The critical value of

$\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

The margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} }*\frac{s}{\sqrt{n} }$

=> $E = 1.96 *\frac{0.0001}{\sqrt{25} }$

=> $E =3.92 *10^{-5}$

The 95% confidence level is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $0.5046 - 3.92 *10^{-5} < \mu < 0.5046 + 3.92 *10^{-5}$

=> $0.5045608 < \mu < 0.5046392$

8 0

3 years ago

A right rectangular prism has a length of 214 cm, width of 8 cm, and height of 2012 cm.

vichka [17]

Answer:

(using the numbers youve prpvided) 3444544

Step-by-step explanation:

214 x 8 x 2012 = 3444544

6 0

3 years ago

Need help plz due on Monday I believe

ra1l [238]

Answer:

1(a) = 10

1(b) = 9

1(c) = 12

2(a) = 8

2(b) = 10

2(c) = 1

Step-by-step explanation:

1(a) = 22 - 2.6

= 22 - 12 = 10

1(b) = 6 - 1/4 . 16 + 21 / 3

= 6 - 16/4 + 7

= 6 - 4 + 7

= 9

1(c) = (8-5). (5-3)^2

= 3*2^2

= 3*4

= 12

2(a) = 4(x-2)/(x-1) when x = 0

= 4(0-2)/ (0-1)

= 4*-2/-1

= -8 / -1

= 8

2(b) = (-3x^2 + 4) / 4 when x = -2

= (6^2 + 4) / 4

= (36 + 4) / 4

= 40 / 4 = 10

2(c) = [-2x/4 + 4*(x-1)] / x^2 - 1 when x = 2

= (-1 + 4 * 1) / 4 - 1

= 3 / 3

= 1

6 0

3 years ago

Read 2 more answers

What is the power of 15?<br> PLS ANSWER QUICKLY! :(

KiRa [710]

Answer:

165

Step-by-step explanation:

165 shoukd be

3 0

3 years ago

Please help me on this question, I’ll give brainliest just pls help me :( i am struggling.

Jlenok [28]

Answer: a associative

b identity

c associative

please mark as brainliest please

6 0

3 years ago