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3 years ago

Preciso resolver isso hj

Mathematics

1 answer:

Brrunno [24]3 years ago

6 0

A é a resposta correta:

192 = 2⁶ × 3¹ = 2⁵ × 2 × 3

→ ⁵√192 = ⁵√(2⁵ × 2 × 3) = ⁵√(2⁵) × ⁵√6 = 2 ⁵√6

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In David’s class, the ratio of right-handed students to left-handed students is 24 to 6. How many right-handed students are ther

BaLLatris [955]

Answer:

There are 4 right handed students for each left hand because, you just divide 24 by 6 and you get 4 for each of the 6 left handed students.

Step-by-step explanation:

Or just group, by doing 6 circles and just put one in each of them so then you can see when all of the circles are taken up .

Thanks! Please Mark Brainiest! <3

~ BiologyisAmazing

6 0

3 years ago

Work out the percentage discount offered with the family ticket option

ycow [4]

Answer:

15% discount was offered with the family ticket option.

Step-by-step explanation:

So adult is 55 so 55 x 2=110

45 x 2=90

110+90=200 so 170 ( Family ticket )

170 divide by 200=0.85 x 100=85% 100% - 85%=15%

5 0

3 years ago

Colton has 32 blue marbles and 24 white marbles. If he wants to put them in identical groups without any left over, what is the

Alja [10]

The awnser is 50 because 32 divided by 47 is 50

8 0

4 years ago

Read 2 more answers

(1 pt) In a study of red/green color blindness, 950 men and 2050 women are randomly selected and tested. Among the men, 89 have

Ivahew [28]

Answer: (0.066,0.116)

Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

The proportion of women have red/green color blindness = $p_2=\dfrac{6}{2050}\approx0.003$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

Now, the 99% confidence interval for the difference between the color blindness rates of men and women will be:-

$(0.094-0.003)\pm (2.576)\sqrt{\dfrac{0.094(1-0.094)}{950}+\dfrac{0.003(1-0.003)}{2050}}\approx0.091\pm 0.025\\\\=(0.09-0.025,0.09+0.025)=(0.066,\ 0.116)$

Hence, the 99% confidence interval for the difference between the color blindness rates of men and women= (0.066,0.116)

4 0

4 years ago

Factor –3y – 18 and choose the correct option.

den301095 [7]

<h3>Factor –3y – 18 is: -3(y + 6)</h3>

<em><u>Solution:</u></em>

Given that we have to factor -3y - 18

Use the distributive property,

a(b + c) = ab + bc

From given,

-3y - 18

Factor out the greatest common factor of 3 and 18

The factors of 3 are: 1, 3

The factors of 18 are: 1, 2, 3, 6, 9, 18

Then the greatest common factor is 3

Factot out 3 from given expression

-3y - 18 = 3( - y - 6)

Or else we can rewrite as,

-3y - 18 = -3(y + 6)

Thus the given expression is factored

5 0

4 years ago