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Gnesinka [82]
3 years ago
14

Solve for 7 < -1/9a Please show your work

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

-63 > a

Step-by-step explanation:

7 < -1/9a

Multiply each side by -9.  Remember to flip the inequality since we are multiplying by a negative

7 * -9 > -1/9 a * -9

-63 > a

You might be interested in
a jar contains ten black buttons and six brown buttons. If nine buttons are picked at random, what is the probability that exact
Anuta_ua [19.1K]

Answer:

33.04% probability that exactly five of them are black

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the buttons are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes:

Five black buttons, from a set of 10

Four brown buttons, from a set of 6.

D = C_{10,5}*C_{6,4} = \frac{10!}{5!(10-5)!}*\frac{6!}{4!(6-4)!} = 3780

Total outcomes:

Nine buttons, from a set of 16.

T = C_{16,9} = \frac{16!}{9!(16-9)!} = 11440

Probability:

p = \frac{D}{T} = \frac{3780}{11440} = 0.3304

33.04% probability that exactly five of them are black

6 0
3 years ago
Find the equation of the line The line has a slope of 1.3 and passes through the point (-2.3, -3.2)
irga5000 [103]

Answer:

y=1.3 x - 0.21

Step-by-step explanation:

y = (slope) \times x + (constant)

set (-2.3,-3.2) in above

- 3.2 = 1.3 \times ( - 2.3) + c

then c=-0.21

3 0
2 years ago
Me pueden ayudar porfa
xz_007 [3.2K]

Answer:

same question bro

Step-by-step explanation:

7 0
2 years ago
What is 27 minus 3.204 minus 10.8
lawyer [7]
   27
- 3.204
  10.8
----------

12.996 ?

6 0
2 years ago
Read 2 more answers
What is the perimeter of a square with a 13ft side
Dafna1 [17]
Perimeter = 2L + 2W
since it’s a square, all sides are equal so
perimeter = 4s
s = 13
so multiply 13 by 4
perimeter = 13*4 = 52
6 0
3 years ago
Read 2 more answers
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