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2 years ago

Help me and i will mark you the brainlyist

Mathematics

2 answers:

8_murik_8 [283]2 years ago

8 0

1a. n ≤ 21
1b. n ≥ 5
1c. n > 3/5

2d. n < 14
2e. n ≥ 14

AVprozaik [17]2 years ago

3 0

The answer is what the guy above said

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4 ^-3 rewrite without an exponent

hichkok12 [17]

Answer:

(1/4)³

Step-by-step explanation:

Hope it helps you

5 0

3 years ago

Read 2 more answers

Approximately three out of every 25 Americans live in California about three out of every 50 Americans live in New York in about

pickupchik [31]

3 out of 25 = 12 out of 100
3 out of 50 = 6 out of 100
2 out of 25 = 8 out of 100
12 + 6 + 8 = 26
100 - 26 = 74%

4 0

3 years ago

Let U= U= Universal set ={0, 1, 2, 3, 4, 5, 6, 7, 8, 9}={0, 1, 2, 3, 4, 5, 6, 7, 8, 9} , A={1, 3, 4, 5, 7, 9} A={1, 3, 4, 5, 7,

blagie [28]

Answer:

a) $A' = [0,2,6,8]$

b) $(AUB)' = [0,2,6]$

c) $(AUB')' = [9]$

d) A∩B′ $= [3,5,9]$

Step-by-step explanation:

Assuming this problem: "Let U= U= Universal set ={0, 1, 2, 3, 4, 5, 6, 7, 8, 9} , A={1, 3, 4, 5, 7, 9} , and B={1, 4, 7, 8} . List the elemetns of the following sets in the increasing order: a) A′= b) (A∪B)′={ , , }} c) (A∪B′)′={ }} d) A∩B′={ , , }}"

Part a

For this case we just need to find the elements in the universal set that are not in A. And we see that:

$A' = [0,2,6,8]$

And that represent the complement for A

Part b

For this case we need to find first the Union AUB who are the elements on A or B without repetition and we got:

$AUB = [1,3,4,5,7,8,9]$

And now the complement for (AUB)' are the elements that are not in AUB but are on the universal set and we got:

$(AUB)' = [0,2,6]$

Part c

For this case we need to find B' who are the elements on the universal set that are not in B

$B' = [0,2,3,5,6,9]$

Then we can find the union between AUB' and we got:

$AUB' = [0,1,2,3,4,5,6,7,9]$

And then the complment is just:

$(AUB')' = [9]$

Part d

For this case we just need to see the elements in common between A and B' and we got:

A∩B′ $= [3,5,9]$

6 0

4 years ago

By selling a watch for Rs 1275, Javed lost 15%. At what price should he sell to make a profit of 10%

Arlecino [84]

Answer: Rs. 1,650

Step-by-step explanation:

First find the original price of the watch.

If the watch is sold at Rs. 1,275, there is a 15% loss.

Assume the watch is x.

(1 - 15%) * x = 1,275

0.85x = 1,275

x = 1,275 / 0.85

x = Rs. 1,500

Now add a 10% markup on the original:

= (1 + 10%) * 1,500

= 1.1 * 1,500

= Rs. 1,650

3 0

3 years ago

if 7 is added to twice a number and this sum is multiplied by 2, the result the same as if the number is multiplied by -8 and 2

Nady [450]

X - the number

$2(2x+7)=-8x+2 \\
4x+14=-8x+2 \\
4x+8x=2-14 \\
12x=-12 \\
x=\frac{-12}{12} \\
x=-1$

The number is -1.

7 0

3 years ago