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4 years ago

Write and equivalent expression to the expression below (17x93) (17x97)

Mathematics

2 answers:

mart [117]4 years ago

6 0

(17 * 93) ^ 2 = 1581

Delvig [45]4 years ago

6 0

(17*93)^2=1581 its right i checked

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Evaluate the expression for x = 3 y= 1/3 and z= 5. 12 x - 3y / 4 x - Z

4vir4ik [10]

Answer:

Step-by-step explanation:

12 x - 3y / 4 x - Z

=12×3-3×1/3÷4×3-5

=36-1/12-5

=35/7

So the final answer is 5.

5 0

3 years ago

What is the probability that a randomly chosen four-digit integer (no leading zeros) has distinct digits and ends with the digit

S_A_V [24]

Answer:

c. 0.0498

Step-by-step explanation:

First of all, let us find the number of four digit numbers possible.

There are 4 digits and let us have a look at the possibility of each digit.

Number of possible options for Unit's digit = 10

Number of possible options for ten's digit = 10

Number of possible options for hundred's digit = 10

Number of possible options for thousand's digit = 9 (because 0 can not be there to make it a 4 digit number)

Total number of possible outcomes = $10\times 10\times 10\times 9 = \bold{9000}$

As per the given condition, unit's digit is 7.

So, number of possible options for unit's digit = 1

Number of possible options for thousand's digit = 8 (7 and 0 can not be there to make it a 4 digit number)

Number of possible options for hundred's digit = 8 (7 and one digit used in thousand's place can not be there)

Number of possible options for ten's digit = 7 (7, two digits used at thousand's and hundred's places)

Number of possible outcomes as per given conditions = $1\times 8\times 8\times 7 = \bold{448}$

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

$P(E) = \dfrac{448}{9000} =\bold{0.0498}$

6 0

3 years ago

An artist can sell 20 copies of a painting at $100 each, but for each additional copy he makes, the value of each painting will

dimulka [17.4K]

Answer:

40 more paintings in order to maximize sales making a total of 60 paintings

Step-by-step explanation:

Let x= no.of copies above 20

Total Sales(x) = (number of copies)(price per copy)

Sales (x)= (20 +x)(100 –x)

Open bracket

=1200-20x+100x-x^2

=1200+80x-x^2

Derivative of the sales

80-2x=0

80=2x

Divide both sides by 2

40=x

Because Sales(x)= –2, this is maximal by the second derivative test

The artist should make 40 more paintings in order to maximize sales making a total of 60 paintings.

4 0

4 years ago

Belief in UFOs A survey found that of people believe that they have seen a UFO. Choose a sample of people at random. Find the pr

Mkey [24]

Answer:

b is the answer am not sure you know

8 0

3 years ago

Read 2 more answers

#3 please. Thank you

Gre4nikov [31]

Experimental, a 7 out of 40 chance, add all of the results together and take the result of the diamond and fraction it with the whole like this 7/40, 31/40, much the same as b, 0/40 chance, because there is no stare in the cards.

3 0

4 years ago