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Serhud [2]
3 years ago
11

Solve by using substitution

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
7 0

f^-1 = 2x - 4

g^-1 = 4/5 + 2/5x

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The points plotted below satisfy a polynomial. In what ranges of x-values must there be a root of the graph? Check all that appl
lisov135 [29]

Answer:

not sure,but I think the answer is 3 to 4

6 0
3 years ago
Solve the equation -8 = -3 - 6 cube root x^2
Volgvan

Answer:

0.76

Step-by-step explanation:

-8+3=-6x^(2/3)

-5=-6 x^(2/3)

-5/-6=x^(2/3)

(2/3)√{5/6}=x

0.76=x

x=0.76

5 0
2 years ago
Can someone help me here and check out the other two i have posted there both due soon and i have no clue how to do them
garik1379 [7]

Answer:

Since the question doesn't mention in what tide the answer should be, I will be giving a solution to both, the high and low tide. Hope this helps :)

Step-by-step explanation:

Using a cosine function, where time is measured in hours past high

tide:  y=4cos30x + 10

Using a cosine function, where time is measured in hours past low

tide:  y = 4cos[30(x-6)]+10

8 0
2 years ago
This circle is centered at the origin, and the length of its radius is 8. what is the equation of the circle?
melomori [17]
Hello : 
note : 
<span>
<span>an equation of the circle Center at the A(a,b) and ridus : r is :
(x-a)² +(y-b)² = r²
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8 0
3 years ago
Read 2 more answers
A square and a rectangle have the same perimeter. The rectangle is 13 cm long and 7 cm wide.
lorasvet [3.4K]

<u>Solving</u>

Knowing that we have the information needed we will first find the perimeter of the rectangle.

Rectangle:
Length: 13cm

Width: 7cm  

Formula: L+L+W+W

13+13+7+7 = 40cm

Meaning the perimeter is 40cm and we can use this to find the length of a square. From general knowledge we know that all sides of a square is equal.

So if we divide the 4 sides by 40 we will get our answer.

40 ÷ 4 = 10

So B would be our answer...

<u>Statement</u>

<u />

Therefore the length of a side of the square is 10cm, meaning answer B is correct.

5 0
2 years ago
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