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3 years ago

Hello please help me i need it

Mathematics

1 answer:

azamat3 years ago

8 0

Answer: 56

Step-by-step explanation: Area means multipilcation. You mulitply those numbers you get 56mi

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Function g(x) = 2x2-8

irga5000 [103]

Answer: Confusing.

If it's f(x) is 2 times 2 minus 8, it's a horizontal line at y-4.

If it's f(x) is 2x 2-8

It's handy to use a graphing calculator.

Step-by-step explanation:

Be sure to clarify what the equation means

Thanks to Desmos for the graphs.

As you can see, the numbers could represent a lot of different things-- especially when 'x' can be a variable -- or confused with the multiplication sign.

3 0

4 years ago

A total of 536 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

Olenka [21]

think of it as one group of adult tickets and 3 groups of student tickets which is 4 groups, so divide 536 by 4. the answer is 134 which is the amount of adult tickets sold (if you wanted the amount of student tickets then you can just subtract 134 from 536).

4 0

3 years ago

If the diagonal of a square is approximately 12.73, what is the length of its sides?

Alja [10]

Answer:

The length of the sides of the square is 9.0015

Step-by-step explanation:

Given

The diagonal of a square = 12.73

Required

The length of its side

Let the length and the diagonal of the square be represented by L and D, respectively.

So that

D = 12.73

The relationship between the diagonal and the length of a square is given by the Pythagoras theorem as follows:

$D^{2} = L^{2} + L^{2}$

Solving further, we have

$D^{2} = 2L^{2}$

Divide both sides by 2

$\frac{D^{2}}{2} = \frac{2L^{2}}{2}$

$\frac{D^{2}}{2} = L^2$

Take Square root of both sides

$\sqrt{\frac{D^{2}}{2}} = \sqrt{L^2}$

$\sqrt{\frac{D^{2}}{2}} = L$

Reorder

$L = \sqrt{\frac{D^{2}}{2}}$

Now, the value of L can be calculated by substituting 12.73 for D

$L = \sqrt{\frac{12.73^{2}}{2}}$

$L = \sqrt{\frac{162.0529}{2}}$

$L = \sqrt{{81.02645}$

$L = 9.001469325$

$L = 9.0015$ (Approximated)

Hence, the length of the sides of the square is approximately 9.0015

7 0

3 years ago

a store sells for 25% off the regular price the regular price of a beach towel is 24.50 which expression represents the scale pr

UNO [17]

$24.5 \times 1.25 = 30.625$
Since you're adding on to the regular price, you can say it is 125% of the price. Or you can use the regular equation:
$(24.5 \times .25) + 24.5 = 30.625$
Since you're only finding 25% of 24.5, you have to add on 24.5 because you're paying for the beach towel and applying the sales tax.

Now, since cents are to the hundredths place, you have to round.
The final price would be $30.63

4 0

3 years ago

Which of these sentences are propositions?

ExtremeBDS [4]

Answer:

a) True

b) False

c) True

d) False

e) Not a proposition

f) Not a proposition

Step-by-step explanation:

Proposition:

It is a declarative statement that is either false or true.
It cannot be both true or false.

a) Boston is the capital of Massachusetts.

The given statement is true. Hence, the given statement is a proposition.

b) Miami is the capital of Florida.

The given statement is false. Hence, the given statement is a proposition.

c) 2 + 3 = 5.

The given statement is true. Hence, the given statement is a proposition.

d) 5 + 7 = 10.

The given statement is false. Hence, the given statement is a proposition.

e) x + 2 = 11.

The given statement can neither be true or false. It depends on the value of x. Hence, it is not a proposition.

f ) Answer this question.

The given statement is not a declarative in nature. Hence, it is not a proposition.

4 0

3 years ago