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Anika [276]
3 years ago
7

Question 2 Solve by substitution. 2x – 10y = 14 2x + 6y = -2

Mathematics
1 answer:
Fed [463]3 years ago
8 0

Answer:

x= 2 and y= -1

Step-by-step explanation:

x=7 +5y

14+16y=−2

y=−1

Substitute y=-1y=−1 into x=7+5yx=7+5y.

x=2

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julio distributed a survey to his fellow students asking them how many hours they spent playing sports in the past day. He also
Karolina [17]

Answer:

The least mood value.

Step-by-step explanation:

If Julio has rated their mood on a scale from 0 to 10, with 10 being the happiest. The least value is 5.

If the fitted line has a y-intercept of 5, the best interpretation of this y-intercept is that the least mood value among the his fellow students is 5.

Intercept actually means beginning, starting point, flat rate e.t.c

8 0
2 years ago
-2(x + y)2 for for x =-3, y = 2 with steps
svlad2 [7]

Step-by-step explanation:

-2(-3+2)2

(-2×-3)+(-2×2)2

(6-4)2

2(6-4)

(2×6)+(2×-4)

12-8=4

6 0
3 years ago
1.8 divided by 1,008 I have to have it by tomorrow please help ! And also I have to show all the work so please help me
Deffense [45]

Answer:

560

Step-by-step explanation:

this is solved above, I hope it helps

6 0
2 years ago
Read 2 more answers
A biased coin has a probability of 0.4 of coming up heads. What is the probability that when flipped one hundred times it comes
inn [45]

Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271

<u>Using the binomial probability relation</u> :

  • P(x = x) = nCx * p^x * q^(n-x)
  • p = probability of success = 0.4
  • q = 1 - p = 0.6
  • n = number of trials = 100

P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)

<u>Using a binomial probability calculator</u> :

P(x ≥ 100) = 0.0271

Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271

Learn more :brainly.com/question/12474772

5 0
3 years ago
Help 30 points and i will mark brainliest for the best answer which will be more points
klasskru [66]

Answer:

See below

Step-by-step explanation:

From the table we see there is a relation between x and y values

Every step change of x = 0.5, every step change of y = 2

<u>This relation is linear. The formula for linear function is:</u>

  • y = mx + b

<u>Using to pairs of points to get the slope and y-intercept</u>

  • (0, 60) and (1, 64)

<u>Calculating the slope:</u>

  • m = (64 - 60)/(1 - 0) = 4/1 = 4
  • y - intercept is 60 as per point (0, 60)

<u>So the function is</u>

  • y = 4x + 60
<h3>Part A</h3>
  • Yes. Described above
<h3>Part B</h3>
  • y = 4x + 60
<h3>Part C</h3>
  • Slope is the steepness of the line.
  • y -intercept is the lowest score with no time spent studying
6 0
3 years ago
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