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Black_prince [1.1K]
3 years ago
5

If nine times a certain number is subtracted from 7 the result is 52. Find the number.

Mathematics
2 answers:
Strike441 [17]3 years ago
7 0

Answer: Number is -5

Step-by-step explanation:

Let the number be x

7-9x = 52

-9x = 52-7

x = - 45/9 = - 5

mezya [45]3 years ago
6 0

Answer:

Let the number to find be x

7 - 9x = 52

-9x = 52-7

- 9x = -45

Divide by - 9

x = 5

The number is 5

Hope this helps.

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This circle is centered at the origin, and the length of its radius iS 6. What is
VikaD [51]

\sf{\qquad\qquad\huge\underline{{\sf Answer}}}

The equation of circle in standard form can be represented as :

\qquad \sf  \dashrightarrow \:(x - h) {}^{2}  + (y - k) {}^{2}  = r {}^{2}

where,

  • h = x - coordinate of centre = 0

  • k = y - coordinate of centre = 0

  • r = radius of circle = 6 units

now, let's plug in the values :

\qquad \sf  \dashrightarrow \:(x - 0) {}^{2}  + (y - 0) {}^{2}  = 6 {}^{2}

\qquad \sf  \dashrightarrow \: {x}^{2}  +  {y}^{2}  = 36

That's the required equation of circle.

4 0
2 years ago
What a circumference of a circle that's radius is 22​
Advocard [28]
Circumference formula is 2pir so 2(3.14)(22) is 138.16
8 0
3 years ago
What is the oppisite of -5
Alik [6]
-5 is on the left side of zero (negative) and 5 is on the right side of zero (positive). So, 5 is the answer...
5 0
3 years ago
Read 2 more answers
Find all geometric sequences such that the sum of the first two terms is 24 and the sum of the first three terms is 26.
Serga [27]

Answer:

<h3>The nth term Tn = -8(-1/4)^(n-1) or Tn = 6(1/3)^(n-1) can be used to find all geometric sequences</h3>

Step-by-step explanation:

Let the first three terms be a/r, a, ar... where a is the first term and r is the common ratio of the geometric sequence.

If the sum of the first two term is 24, then a/r + a = 24...(1)

and the sum of the first three terms is 26.. then a/r+a+ar = 26...(2)

Substtituting equation 1 into 2 we have;

24+ar = 26

ar = 2

a = 2/r ...(3)

Substituting a = 2/r into equation 1 will give;

(2/r))/r+2/r = 24

2/r²+2/r = 24

(2+2r)/r² = 24

2+2r = 24r²

1+r = 12r²

12r²-r-1 = 0

12r²-4r+3r -1 = 0

4r(3r-1)+1(3r-1) = 0

(4r+1)(3r-1) = 0

r = -1/4 0r 1/3

Since a= 2/r then a = 2/(-1/4)or  a = 2/(1/3)

a = -8 or 6

All the geometric sequence can be found by simply knowing the formula for heir nth term. nth term of  a geometric sequence is expressed as

if r = -1/4 and a = -8

Tn = -8(-1/4)^(n-1)

if r = 1/3 and a = 6

Tn = 6(1/3)^(n-1)

The nth term of the sequence above can be used to find all the geometric sequence where n is the number of terms

6 0
3 years ago
You want to order carpet for an area in your house. The room measures 12 feet by 10 feet. The carpet is sold in square yards. Ho
FromTheMoon [43]

Answer:

yards of carpet you need: 4*10/3=40/3=13.3333 yd^2

Step-by-step explanation:

convert feet to yard:

1 yard=3 feet so

12 feet=4 yards

10 feet=10/3 yard=3.33333 yard

yards of carpet you need: 4*10/3=40/3=13.3333 yd^2

3 0
3 years ago
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