All categories

3 years ago

PLEASE HELP WILL MARK YOU BRAINLIEST

Mathematics

1 answer:

gavmur [86]3 years ago

8 0

Answer:

90 degrees

Step-by-step explanation:

if The protractor were on the line I’d be able to see if it’s accurately 90

You might be interested in

5 2/3 x 4 1/2 make sure your anser is correct

wariber [46]

The answer is 25.5 as a decimal, as a fraction it is 51/2.

8 0

3 years ago

What steps would you take in order to solve the equation 38 = 6x – 16? subtract 16 and then divide by 6 divide by 6 and add 16 a

garik1379 [7]

Answer:

x = 9

Step-by-step explanation:

38 = 6x - 16

Situate the x to one side -6x = -16-38

-6x = -54

-x = -9

x = 9

8 0

4 years ago

Read 2 more answers

A particular type of mouse's weights are normally distributed, with a mean of 359 grams and a standard deviation of 33 grams. If

igor_vitrenko [27]

Answer:

Following are the responses to the given points:

Step-by-step explanation:

Given:

$\mu = 359 \ \ \ \ \ \sigma = 33\\\\$

Using formula:

$\to P(X = x) = P\left ( z < \frac{x-\mu }{\sigma } \right )$

For point a:

$\to x= 406\\\\P(X < 406 ) = P\left ( z < \frac{406-359 }{33 } \right )\\\\$

$= P\left ( z$

For point b:

$\to x= 461\\\\P(X > 461 ) = P\left ( z > \frac{461 -359 }{33 } \right )\\\\$

$= 1 - P\left ( z < 3.0909 \right )\\\\= 1 - 0.9990\\\\= 0.0001$

For point c:

$\to x= 406\ \ and \ \ 461\\\\P(406$

$= 0.9990 - 0.9222\\\\= 0.0768\\\\$

For point d:

$P(X < 406) = 0.9222 = 92.22 \%\ that \ is \ greater \ than\ 50\%$

Hence, the correct choice is "i".

For point e:

$\to P(X > z) = 0.1\\\\\to 1 - P(X < z) = 0.1\\\\\to P(\frac{x-\mu }{\sigma }) = 0.9\\\\\to \frac{x-359}{33 } = 1.28\\\\ \to x = 401.24\\\\$

5 0

3 years ago

After reading 7/9 of a book, 40 pages are left. Find the total number of pages in the book

dimaraw [331]

Answer:

180 pages

Step-by-step explanation:

let x be the number of pages in the book , then

$\frac{7}{9}$ x + 40 = x ( multiply through by 9 to clear the fraction )

7x + 360 = 9x ( subtract 7x from both sides )

360 = 2x ( divide both sides by 2 )

180 = x

The total number of pages in the book is 180

6 0

3 years ago

Why are these incorrect 3sqrt 7 - sqrt 7 =3

timurjin [86]

Because the left side sqrt is multiplied by 3 if it was just added it would be correct because it would cancel out and leave the 3’s. Since it’s multiplied it would change the value

5 0

3 years ago

Read 2 more answers