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balandron [24]
3 years ago
9

1. 6x + 2y = -12

Mathematics
1 answer:
8090 [49]3 years ago
3 0

Answer:

J71763eua8w8w8us

Nakshatra w

Nskd8w8

I2991992

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ashur solves the following system of linear euations. -3a + 7b = -16. -9a + 5 b = 16 which statement is true about the solution
tiny-mole [99]

Answer:

a=-4, b=-4. (-4, -4).

Step-by-step explanation:

-3a+7b=-16

-9a+5b=16

-------------------

-3(-3a+7b)=-3(-16)

-9a+5b=16

---------------------------

9a-21b=48

-9a+5b=16

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-16b=64

b=64/-16

b=-4

-3a+7(-4)=-16

-3a-28=-16

-3a=-16+28

-3a=12

a=12/-3

a=-4

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3 years ago
The amplitude of y = -2 sin 3x is
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Answer:2

Step-by-step explanation:

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3 years ago
An angle that is one half its arc is a/n ____________ angle.
Greeley [361]

Answer:

it's an inscribed angle

Step-by-step explanation:

4 0
3 years ago
For an outdoor concert by the city​ orchestra, concert organizers estimate that 19 comma 000 people will attend if it is not rai
Amiraneli [1.4K]

Answer:

14,800 people are expected to attend the concert

Step-by-step explanation:

In this question, we are tasked with calculating the expected number of people that will attend a concert on a particular day.

The key to answering this question is to multiply the individual probabilities of the two events by the expected number of people

Mathematically, what we obtain is the following;

The expected number of people at the concert = (probability of raining × expected number of people when it rains) + (probability of not raining × Expected number of people when it does not rain)

From the question, we identify that;

Probability of raining = 30% = 30/100 = 0.3

Probability of not raining = 1-probability of raining = 1-0.3 = 0.7

Expected number of people when it rains = 5,000

Expected number of people when there is no rain = 19,000

we plus these vales into the equation we have;

The expected number of people at the concert =( 0.3 × 5,000) + (0.7 × 19,000) = 1,500 + 13,300 = 14,800 people

6 0
3 years ago
Solve the equation for x.<br> x<br> 9<br> =
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What kind of operation is this ? it just says x and a nine.
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