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Lilit [14]
3 years ago
9

How many floor boards 2-1/4 inches wide are needed to cover a floor 15 feet wide

Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0

Answer:

180 inches divide by 2.25 inches is 80

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Find all the square roots of x2 ≡ 53 (mod 77)
Nikolay [14]

Answer:

x=\pm\sqrt{77n+53}

Step-by-step explanation:

We have been given an equivalence equation x^2\equiv 53\text{ (mod } 77). We are asked to find all the square root of the given equivalence equation.

Upon converting our given equivalence equation into an equation, we will get:

x^2-53=77n

Add 53 on both sides:

x^2-53+53=77n+53

x^2=77n+53

Take square root of both sides:

x=\pm\sqrt{77n+53}

Therefore, the square root for our given equation would be x=\pm\sqrt{77n+53}.

3 0
3 years ago
I need an answer for the empty spaces
abruzzese [7]

Answer:

4, +, 6

Step-by-step explanation:

3 0
3 years ago
Classify the following expression by degree and term: x2y − 7xy + xyz + x
goldfiish [28.3K]
3rd degree polynomial with 4 terms
4 0
3 years ago
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Which is the equation of a line that has a slope of -2/3and passes through point<br> (-3,-1)?
Nataly [62]
Answer:

y=-2/3x-3



Explanation
4 0
3 years ago
PTG has side lengths of 18 cm, 27 cm, and 13 cm. which type of triangle is PTG? The answer is obtuse.
Verizon [17]
To know what kind of triangle is it. use the pythagorean theorem:
A^2 + B^2 = C^2,
where C is the longest side of the triangle 
if it satisfies the equation then it is a right triangle
if it does not then A^2 + B^2 > C^2 so it is acute triangle
if A^2 + B^2 < C^2 it is obtuse triangle

18^2 + 13^2 ? 27^2
324 + 169 ? 729
493 < 729 so it is obtuse triangle

3 0
3 years ago
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