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bogdanovich [222]
2 years ago
12

Solve the system of linear equations by substitution, and show the steps please!

Mathematics
1 answer:
kati45 [8]2 years ago
6 0

Anit is b on egj

Step-by-step explanation:

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Plz Help!!!!!!!!!!!!!!!!!!!!!!!!!
Novosadov [1.4K]

Answer:

line segments j' k' and m' n' do not intersect and are the same distance apart as jk and mn

Step-by-step explanation:

this is because if jk and mn are both moved to the left two units, the space between them does not change

4 0
3 years ago
Can you find the area
yaroslaw [1]
Area = 45 + 90
Answer: 135
7 0
3 years ago
Read 2 more answers
Mr. Engen rented a car for 35.00 a day and 0.45 a mile . He had the car for 2 days and paid 166.75 . How many miles did he drove
liubo4ka [24]

d = days rented for

m = miles driven for

so the cost of the car is 35 bucks a day and 45 cents or $0.45 per mile driven, let's check it out for say a few days

1st day, 3 miles......................35(1) + 0.45(3)

2nd day, 2 miles..................35(2) + 0.45(2)

3rd day, say 5 miles............35(3) + 0.45(5)

dth day, and m miles..........35d + 0.45m

so the cost function could be written as C = 35d+0.45m.

now, we know for 2 days, d = 2, it cost 166.75 bucks, so

\bf C=35d+0.45m\implies \stackrel{C}{166.75}=35(\stackrel{d}{2})+0.45m\\\\\\166.75=70+0.45m\implies 96.75=0.45m\\\\\\\cfrac{96.75}{0.45}=m\implies 215=m

7 0
3 years ago
Explain how you can compare the size of a product to the size of a factor when multiplying fractions without actually doing the
Advocard [28]
<span>Explain how you can compare the size of a product to the size of a factor when multiplying fractions without actually doing the multiplication. Include a model.
tbh idek

</span>
3 0
3 years ago
For an angle 0 with the point (-20,-21) on its terminating side, what is the value of cosine ?
Karo-lina-s [1.5K]

check the picture below.


\bf (\stackrel{a}{-20},\stackrel{b}{-21})\impliedby \textit{let's find the \underline{hypotenuse}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=\stackrel{adjacent}{-20}\\ b=\stackrel{opposite}{-21}\\ \end{cases} \\\\\\ c=\sqrt{(-20)^2+(-21)^2}\implies c=\sqrt{841}\implies c=29 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill cos(\theta )=\cfrac{\stackrel{adjacent}{-20}}{\stackrel{hypotenuse}{29}}~\hfill

5 0
3 years ago
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