All categories

3 years ago

Please help me with this it is dud this night for 25 points also please do the both

Mathematics

2 answers:

AVprozaik [17]3 years ago

8 0

Answer:

8) D

9) C

Step-by-step explanation:

MM AA TT H E I C S

8) 2/11 × 2/11 = 4/121

9) 4 vowels and 7 consonants

4/11 × 7/10 = 14/55

iogann1982 [59]3 years ago

4 0

Answer:

D 4/121

C 14/55

Step-by-step explanation:

The total number of tiles in mathematics is 11

P(a) = number of a's/ total = 2/11

We replace the tile

so there are 11 tiles and the are mathematics

P(a) = number of a's/ total = 2/11

P(a, replace then a) = 2/11 *2/11 = 4/121

P(vowel) = vowel/total = 4/11

We keep the vowel so there are only 10 tiles

3 vowels and 7 consonants

P( consonants) = consonant/total = 7/10

P(vowel, no replace, consonant) = 4/11*7/10 = 14/55

You might be interested in

A rectangle has an area of x square units. The rectangle is dilated to create a new rectangle with an area of 9x square units. D

Alika [10]

The reactangle has an area of x.

So that means two numbers multiplied to each other equal to x. We can just think of itwo numbers that when multiplied equal to x as a and b.

So that means the side lengths are a and b. And ab = x (will be using this right next).

And it was multiplied by some scale factor that made the new area 9x. So if the scale factor is y, then:

$(y\times a)\times (y\times b)=9x$
$y^2ab=9x$
$y^2x=9x$
$y=3$

y can not equal to -3, because the length of a side of any polygon can never be negative.

So the dilation is 3.

And so if the dimension is 5 by 8.

Then the area is $5 \times 8=40$

And so then $x=40$

And then after the dilation, it would be $9x=9(40) = 360$

We could check it another way too. Since we said the scale factor is 3, then:

$( 5 \times 3) \times (8 \times 3) = 15 \times 24 = 360$

So basically 15 by 24 is the new dimensions :)

6 0

3 years ago

Segments UV and WZ are parallel with line ST intersecting both at points Q and R respectively

Zanzabum

The correct answer is:

Corresponding (for both blanks)

Explanation:

Corresponding angles are angles that are in the same relative position to both the parallel line they are on and the transversal. In this case, SQU and WRS are both above the parallel line they are on and on the same side of the transversal; this makes them corresponding angles. This also means it is the corresponding angles postulate.

3 0

3 years ago

Read 2 more answers

A car completes a journey of 570 km at an average speed of 75 km/h calculate the time taken for the journey in hours and minutes

Evgesh-ka [11]

570/75=7 hours and 36 minutes

4 0

3 years ago

I need answer how to do number 3

Olegator [25]

You know that you need two already to make one hexagon. So, if you multiply, or add two four times, 2+2+2+2, you would get eight.

3 0