Ask question

Ask question

All categories

3 years ago

11

How to solve this question????? Help me please

1 answer:

julsineya [31]3 years ago

7 0

<em>Answer: 24/10</em>

<em>Answer: 24/10Step-by-step explanation:</em>

<em>1</em><em>)</em><em> </em><em>1*1÷10 +1*1÷5+2÷20</em>

<em>2</em><em>)</em><em>(1*10+1)/10+(1*5+1)/5+2/20 </em><em>3</em><em>)</em><em>11/10+6/5+2/20</em>

<em>4</em><em>)</em><em>11/10+6/5+1/10</em>

<em>5</em><em>)</em><em>11/10+12/10+1/10</em>

<em>6</em><em>)</em><em>(11+12+1)/10</em>

<em>7</em><em>)</em><em>24/10</em>

<em>Hope it helps!Please mark me brainest and follow me to get the answer faster</em>

You might be interested in

Help<br><br> (5a-3a^3)*(4a-1)

ivann1987 [24]

Answer:

$-12a^{4} + 3a^{3} + 20a^{2} -5a$

Step-by-step explanation:

$(5a-3a^{3} )$ • $(4a-1)$

Let's use FOIL (first, outer, inner, last) to solve this. We'll multiply the terms by one another in that fashion.

$20a^{2} - 5a - 12a^{4} + 3a^{3}$

Rearrange in decreasing exponents.

$-12a^{4} + 3a^{3} + 20a^{2} -5a$

3 0

3 years ago

How many do u wanna bet nobody on this app is not going to help me on this question

Vika [28.1K]

The last one :))))))))))

5 0

3 years ago

1. Nancy works at a Dunkin Donut. The coffee maker has the ability to make 64oz of coffee. If

OleMash [197]

a = 2t+32=c

b= 2*10=20+32=52oz of coffee

I think this is right

3 0

3 years ago

Write an inequality and solve it for four more than a number is more than 13.

True [87]

When you write it as an inequality you get x + 4 > 13

6 0

3 years ago

Read 2 more answers

Two shooters, Rodney and Philip, practice at a shooting range. They fire rounds each at separate targets. The targets are mark

Sedaia [141]

Complete Question

Answer:

a

$SE = 0.66}$

b

$-3.29 < \mu_1 - \mu_2 < -0.70$

Step-by-step explanation:

From the question we are told that

The sample size is n = 60

The first sample mean is $\= x _1 = 8$

The second sample mean is $\= x _2 = 10$

The first variance is $v_1 = 0.25$

The first variance is $v_2 = 0.55$

Given that the confidence level is 95% then the level of significance is 5% = 0.05

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

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

Generally the first standard deviation is

$\sigma_1 = \sqrt{v_1}$

=> $\sigma_1 = \sqrt{0.25}$

=> $\sigma_1 = 0.5$

Generally the second standard deviation is

$\sigma_2 = \sqrt{v_2}$

=> $\sigma_2 = \sqrt{0.55}$

=> $\sigma_2 = 0.742$

Generally the first standard error is

$SE_1 = \frac{\sigma_1}{\sqrt{n} }$

$SE_1 = \frac{0.5}{\sqrt{60} }$

$SE_1 = 0.06$

Generally the second standard error is

$SE_2 = \frac{\sigma_2}{\sqrt{n} }$

$SE_2 = \frac{0.742}{\sqrt{60} }$

$SE_2 = 0.09$

Generally the standard error of the difference between their mean scores is mathematically represented as

$SE = \sqrt{SE_1^2 + SE_2^2 }$

=> $SE = \sqrt{0.06^2 +0.09^2 }$

=> $SE = 0.66}$

Generally 95% confidence interval is mathematically represented as

$(\= x_1 -\= x_2) -(Z_{\frac{\alpha }{2} } * SE) < \mu_1 - \mu_2 < (\= x_1 -\= x_2) +(Z_{\frac{\alpha }{2} } * SE)$

=> $(8 -10) -(1.96 * 0.66) < \mu_1 - \mu_2 < (8-10) +(Z_{\frac{\alpha }{2} } * 0.66)$

=> $-3.29 < \mu_1 - \mu_2 < -0.70$

5 0

3 years ago