All categories

3 years ago

PLEASE HELP

Mathematics

1 answer:

Gekata [30.6K]3 years ago

7 0

Answer:

a. n x (2n +1) = 10

b. length: 5 width: 2

Step-by-step explanation:

5 is 1 more then 2 times 2

You might be interested in

Davis knows that the area of his square shaped bag is 81 ft squared. what is the length of any side of the bag?

LiRa [457]

area = l x w

area = 9 x 9

area = 81

Hope this was helpful. :-)

4 0

3 years ago

Read 2 more answers

-2 with a exponent six

DIA [1.3K]

$-2^{6} 

$ = -2 with a exponent six
Well Exponents mean that you multiply the number 6 times.
Soo..
$-2^{6}$ = -2 x -2 x -2 x -2 x -2 x -2 = 64

So <span> $-2^{6}$ = 64
</span>
Good Luck! :)

5 0

3 years ago

Read 2 more answers

What is the reciprocal fo -2/3

stich3 [128]

Answer:

-3/2

Step-by-step explanation:

the reciprocal is just a different fraction, with the numbers "flipped" upside down (inverted)

hope it helps:)

7 0

3 years ago

Evaluate. 9^2 • ( 1/3) ^2 - 9 A) 1/9 B) 0 C) 1 D) 9 if right brainest

anzhelika [568]

Answer:

Step-by-step explanation:

9^2 * (1/3)^2 -9

PEMDAS says powers first

81 * 1/9 -9

Then multiply

9 -9

Then subtract

6 0

3 years ago

David, Egil and Frances share money in the ratio 2:7:9. Frances gets ?80 more than David. Explain how you know Egil gets ?80.

Natalija [7]

Step-by-step explanation:

We have been given that David, Egil and Frances share money in the ratio 2:7:9.

Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.

We are told that Frances gets $80 more than David. So we can write this information in an equation as:

$9x=2x+80$

Now let us solve for x.

$9x-2x=80$

$7x=80$

$x=\frac{80}{7}$

Now let us substitute $x=\frac{80}{7}$ in 7x (amount of money that Egil gets).

$\text{ Amount of money that Egil will get}=7\cdot \frac{80}{7}$

Upon cancelling out 7 from numerator and denominator we will get,

$\text{ Amount of money that Egil will get}=80$

Therefore, Egil will get $80.

6 0

3 years ago