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lakkis [162]
4 years ago
10

Write a proportion to find how many points x

Mathematics
1 answer:
Brilliant_brown [7]4 years ago
6 0
80 percent multiplied by 80 is 64
he must get 64 points to obtain 80 percent of the mark
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Hey can you please help me posted picture of question
True [87]
Ways to spot if an expression is not a polynomial:
1) If there is a negative exponent
2) If there is division by a variable
3) If the power is something other than a non-negative integer

If any of these conditions exist, the expression will not be a polynomial. Now consider the options. Option A has negative exponent, Option B involves division by a variable and Option D has a exponent which is not a number.

So, from the given options, option C is the only polynomial
7 0
3 years ago
Need help IT MATH!!!!!!!!!!
kaheart [24]

Answer:

-6r+5

Step-by-step explanation:

7 0
4 years ago
A recipe used 2/3 cup of sugar for every 2 teaspoons of butter. How much sugar was used per teaspoon of butter
myrzilka [38]

Answer:

2/3cups 2 teaspoons

(2/3 )cups/2teaspoons =1/3 cups per teaspoon

Answer= 1/3 cups per teaspoon

8 0
3 years ago
Read 2 more answers
Determine the principal value of the function: Arc sin(square root of 3/2)
Drupady [299]

Answer:

π/3

Step-by-step explanation:

We have to find the principal value of \text{arc sin}(\frac{\sqrt{3}}{2} )

arc sin means sin inverse. The sin inverse is a one to one function with its range between -\frac{\pi}{2} \textrm{ to } \frac{\pi}{2}

The principal value of the arc sin will lie within the above given range.

value of sin (60) or sin(\frac{\pi}{3}) is \frac{\sqrt{3}}{2}.

\frac{\pi}{3} lies between -\frac{\pi}{2}\textrm{ and } \frac{\pi}{2}

So, from here we can say that the Principal Value of Arc sin(square root of 3/2) is π/3

5 0
4 years ago
Which number is closest to 66 (squared)?<br> A) 8.8<br> B) 8.1<br> C 8.2<br> D) 9.1
Hoochie [10]

Answer:

sq rt of 66 is 8.12 so 8.1 closest

8 0
3 years ago
Read 2 more answers
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