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dimaraw [331]
4 years ago
5

Choose what the expressions below best represent within the context of the word problem. The tens digit of a number is twice the

ones digit. The sum of the digits in the number is 12. What is the number? x represents digit 2x represents digit
Mathematics
1 answer:
Usimov [2.4K]4 years ago
6 0
<span>2x + x = 12
=> x =12/3 =4
so, original number is 84.

</span>
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Graph the equation (x - 3)^2 + (y - 2)^2 = 25 and y = 6.
Dmitriy789 [7]

Answer:

x=6, x=0

Step-by-step explanation:

(x - 3) ^{2}+ (y - 2) ^{2}= 25

(x - 3) ^{2}+ (6 - 2) ^{2}= 25

x=6, x=0

3 0
3 years ago
How did newton know that 1%of 80 is 0.8
Marina86 [1]
So,

Newton knows that 1% of anything really just means moving the decimal point two places to the left.

Examples:
1% of 10 = 0.1

1% of 389,092,192 = 3,890,921.92

1% of 3.1415926 = 0.031415926

Knowing this, Newton figures that all he has to do is move the decimal place two places to the left.

1% of 80 = 0.8
8 0
3 years ago
Given: <br> PQ<br> ⊥<br> QR<br> , PR=20,<br> SR=11, QS=5<br> Find: The value of PS.
dlinn [17]

Answer:

The value of the side PS is 26 approx.

Step-by-step explanation:

In this question we have two right triangles. Triangle PQR and Triangle PQS.

Where S is some point on the line segment QR.

Given:

PR = 20

SR = 11

QS = 5

We know that QR = QS + SR

QR = 11 + 5

QR = 16

Now triangle PQR has one unknown side PQ which in its base.

Finding PQ:

Using Pythagoras theorem for the right angled triangle PQR.

PR² = PQ² + QR²

PQ = √(PR² - QR²)

PQ = √(20²+16²)

PQ = √656

PQ = 4√41

Now for right angled triangle PQS, PS is unknown which is actually the hypotenuse of the right angled triangle.

Finding PS:

Using Pythagoras theorem, we have:

PS² = PQ² + QS²

PS² = 656 + 25

PS² = 681

PS = 26.09

PS = 26

7 0
3 years ago
What is the base 8 representation of the number 11100111^2
Mrrafil [7]

Answer:

150161 in base 8.

= 347^2 base 8.

Step-by-step explanation:

11100111^2

the last 4 digits of this binary number = 7 in base 10.

The number 11100000 in base 10 =  1*2^5 + 1*2^6 + 1*2^7

= 224 base 10

So 11100111 = 231 base 10.

231^2 = 53361.

Now convert this to base 8:

We divide by 8

8 | 53361

8  |   6670 remainder 1

8  |  833 rem 6

8  | 104 rem 1

8 |  13 rem 0

8  | 1 rem 5

   | 0 rem 1

 

So the answer is  150161

 

3 0
3 years ago
Read 2 more answers
How do you divide 7 over 9
saw5 [17]

Answer:

The answer  is 0.7 recurring.

Step-by-step explanation:

       0.777.....

     ----------------------------

9 )   7.000000000

        63

           70

            63

               70     and so on......

The 7 after the decimal point goes on without bounds.

           

7 0
3 years ago
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