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34kurt
2 years ago
8

Solve the system of linear equations by substitution. −5x+3y=51 y=10x−8

Mathematics
1 answer:
DerKrebs [107]2 years ago
3 0
I would do the work out but it’s a lot of work so heres a picture the work is already done.

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Connor and Angie helped take attendance during their schools practice fire drill if the actual count was between 77 and 89 inclu
wel

Answer:

The most absolute error is 12

Step-by-step explanation:

The formula for absolute error is given by the following relation;

Absolute error, Δx = Value measured, x₀ - Exact (actual) value, x

Δx = x₀ - x

Since the actual count is between 77 and 89, the maximum absolute error will be where the actual value = 77 and the measured value = 89 and vice versa, giving an absolute error of 89 -77 = 12.

The most absolute error = 12.

4 0
3 years ago
To get from his house to the lecture hall at school, Lin walked west 651 feet. After class, he walked northeast 910 feet to the
Ahat [919]

The general direction that Lin walked from the gym to his house is; B: Lin walked southwest, creating an obtuse triangle.

<h3>How to interpret distance bearing?</h3>

We are given;

Distance between the lecture hall and gym = 910 feet.

Distance between the gym and Lin apostrophe's house = 615 feet.

Distance between the lecture hall and Lin apostrophe's house = 651 feet.

Now, since this 3 distances form a triangle and the 3 distances are unequal, then we can call it an obtuse triangle since he walked west and then walked northwest.

Now, since he walked back to his house from the gym, we can say that he walked southwest if we picture the bearing of his first two directions.

Read more about Distance Bearing at; brainly.com/question/22719608

#SPJ1

4 0
2 years ago
The farmer wants ratio horses : cows to equal 5 : 3.
weqwewe [10]

Answer

He needs to buy 27 Cows

Step-by-step explanation:

if the ratio from horses to cows is 5-3 then you multiply 5 by the number to get 45 and also multiply it by 3

5 x <u>9</u> = 45

3 x <u>9</u> = 27

3 0
2 years ago
Read 2 more answers
A shop has determined that the number of bottles of water they sell on a summer day is a function of the day’s high temperature,
Alik [6]

Answer:

  •          T=t+94

                 Where T is the hight temperature and t is the day

Explanation:

The table shows that every day the<em> High temperature, T (degrees F) </em>increases 1 unit.

Then, this is a linear function with slope = 1ºF / day.

You can use the point-slope equation to determine the <em>function of the high temperature:</em>

  • Point-slope equation:

       y-y_1=m(x-x_1)

  • Choose any point from the table and m = 1. I will use the first point (1,95)

  • m = 1
  • x₁ = 1
  • y₁ = 95

Substitute:

        y-95=1(x-1)\\\\y=x-1+95\\\\y=x+94

Make the variables  y = T, and x = t:

     T=t+94

4 0
3 years ago
I got more questions
Liono4ka [1.6K]

Answer:

a,d,c

Step-by-step explanation:

4 0
2 years ago
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