All categories

3 years ago

Pls help urgently extra points and mark brainlist

Mathematics

1 answer:

BabaBlast [244]3 years ago

5 0

Answer:

Uplift of the Colorado Plateau was a key step in the eventual formation of Grand Canyon.

Step-by-step explanation:

You might be interested in

Please help me !!!!!!!!!!!!!!!!!!!!

Ann [662]

21:28 => 3:4

96:32 => 3:1

22:33 => 2:3

12:36 => 1:3

72:56 => 9:7

54:63 => 6:7

Hope it helps!

7 0

3 years ago

Read 2 more answers

Two fractions have denominators of x^2+ 6x + 9 and x^2. What is the Least Common Denominator?

Gala2k [10]

SOLUTION

Write out the denominator of the fraction, we have

$\begin{gathered} x^2+6x+9 \\ \text{And } \\ x^2-9 \end{gathered}$

We want to obtain the least common denominator.

To do this, we need to factorize each of the expression given

$\begin{gathered} x^2+6x+9 \\ =x^2+3x+3x+9 \\ =x(x+3)+3(x+3) \\ =(x+3)(x+3) \end{gathered}$

Then we factorise the other fraction using difference of two square

$\begin{gathered} a^2-b^2=(a-b)(a+) \\ \text{Then} \\ x^2-9=x^2-3^2 \\ =(x-3)(x+3) \end{gathered}$

The the factorise expression becomes

$(x+3)(x+3)\text{ and (x-3)(x+3)}$

To obtain the least common denominator, we select the common factor and the product of the other factor,

Hence

$\begin{gathered} \text{common factor=(x+3)} \\ \text{The other factors are (x-3)(x+3)} \\ \text{Then } \\ \text{Least co}mmon\text{ denominator becomes } \\ (x+3)(x-3)(x+3) \end{gathered}$

Thus

The Least Common Denominator is (x +3)(x+3)(x-3) (Last Option )

5 0

1 year ago

The economics department has 40 applicants for their phd program and only 10 openings. how many different combinations of applic

lana66690 [7]

In a sequence of events, the total possible number of ways all events can performed is the product of the possible number of ways each individual event can be performed. Since there are 10 openings

<span>P = 40 x 39 x 38 x 37 x 36 x 35 x 34 x 33 x 32 x 31 = 3.07599 x 10^15 different combinations</span>

5 0

3 years ago

the difference between a two-digit number and that number reversed is 18. What could that number be. List all possibility's.

kirza4 [7]

9514 1404 393

Answer:

20, 31, 42, 53, 64, 75, 86, 97

Step-by-step explanation:

The difference of 18 means the difference of digits is 18/9 = 2. Since the number you seek is the larger number, the 10s digit will be 2 more than the 1s digit. Possible numbers are ...

20, 31, 42, 53, 64, 75, 86, 97

_____

If t and o are the tens and ones digits respectively, the relation you seek is ...

(10t +o) -(10o +t) = 18

9(t -o) = 18

t - o = 2 . . . . as above

Since both t and o must be single digits, the minimum will be t=2, o=0, and the maximum will be t=9, o=7.

3 0

3 years ago

Read 2 more answers

If it’s too blurry let me know. I’ve been plugging in these points and idk maybe I’m doing something wrong but o can’t get the l

nika2105 [10]

Answer: A. -4

Step-by-step explanation:

6/((-4)^2-9)-(1/-4-3)= 6/7+1/7=1

4 0

4 years ago