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Pavlova-9 [17]
3 years ago
11

Pls help will give brainliest and 5star pls

Mathematics
1 answer:
marissa [1.9K]3 years ago
3 0

The answer to this question is 40.

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Pipe leaks 1.5 gallons a day how much in a week
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Well, that would be 1.5x7.. which is 10.5 :) your welcome
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3 years ago
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Please help due in 5 minutes
soldier1979 [14.2K]

Answer:

(-1,-2)

Step-by-step explanation:

There is a solution where the two expressions intersect. We can plug in what we know in the first equation in the second.

x= -1

y=3x+1

y= 3(-1)+1

y= -3+1

y= -2

Plugging y value in the equation to find x:

-2=3x+1

-3=3x

x= -1

Therefore, the point is (-1,-2)

<em>I hope this helps! :)</em>

5 0
3 years ago
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In a right triangle the length of a hypotenuse is c and the length of one leg is a, and the length of the other leg is b, what i
swat32
Apply the Pythagoras Theorem

{c }^{2}  =  {a}^{2}  +  {b}^{2}
{9 }^{2}  =  {7}^{2}  +  {b}^{2}
81 =  49+  {b}^{2}
81  -  49 = {b}^{2}
32= {b}^{2}
Take square root of both sides

b =  \sqrt{32}
b = 4  \sqrt{2}

5 0
3 years ago
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Explain why an equation is extraneous. Explain why an equation is non extraneous.
TEA [102]

Answer:

I hope it's helpful.

Step-by-step explanation:

In mathematics, an extraneous solution (or spurious solution) is a solution, such as that to an equation, that emerges from the process of solving the problem but is not a valid solution to the problem.

5 0
3 years ago
(Will mark brainliest) Please help as soon as possible for 30 points
Marianna [84]

Answer:

90

Step-by-step explanation:

a triangle's angles all add up to 180. take 51 and 39 away from 180 and you get 90

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3 years ago
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